llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-26 21:32:10 +00:00

Author	SHA1	Message	Date
Duncan Sands	a3d10d808e	Correctly extract the ValueType from a VTSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43339 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-25 12:30:51 +00:00
Dale Johannesen	8eadd5a6db	Another expansion for i64 multiply, suitable for PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43314 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-24 22:26:08 +00:00
Bill Wendling	30eeb3c6c0	Fix comment and use the "Size" variable that's already provided. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43271 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-23 23:36:57 +00:00
Bill Wendling	8b1c68cee4	If there's an unaligned memcpy to/from the stack, don't lower it. Just call the memcpy library function instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43270 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-23 23:32:40 +00:00
Bill Wendling	803396fce2	This broke lots. Reverting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43264 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-23 22:04:26 +00:00
Bill Wendling	de09040946	Lowering a memcpy to the stack is killing PPC. The ARM and X86 backends already have their own custom memcpy lowering code. This code needs to be factored out into a target-independent lowering method with hooks to the backend. In the meantime, just call memcpy if we're trying to copy onto a stack. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43262 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-23 21:30:25 +00:00
Duncan Sands	fec3ad3e5f	Support for expanding extending loads of integers with funky bit-widths. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43225 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-22 19:00:05 +00:00
Duncan Sands	245741d2a1	Fix up the logic for result expanding the various extension operations so they work right for integers with funky bit-widths. For example, consider extending i48 to i64 on a 32 bit machine. The i64 result is expanded to 2 x i32. We know that the i48 operand will be promoted to i64, then also expanded to 2 x i32. If we had the expanded promoted operand to hand, then expanding the result would be trivial. Unfortunately at this stage we can only get hold of the promoted operand. So instead we kind of hand-expand, doing explicit shifting and truncating to get the top and bottom halves of the i64 operand into 2 x i32, which are then used to expand the result. This is harmless, because when the promoted operand is finally expanded all this bit fiddling turns into trivial operations which are eliminated either by the expansion code itself or the DAG combiner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43223 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-22 18:26:21 +00:00
Chris Lattner	d0e908e830	Add promote operand support for [su]int_to_fp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43204 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-20 22:57:56 +00:00
Chris Lattner	be5a0a4668	Add result promotion of FP_TO_*INT, fixing CodeGen/X86/trunc-to-bool.ll with the new legalizer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43199 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-20 04:32:38 +00:00
Chris Lattner	aaeb0c8666	simplify some code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43198 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-20 04:09:48 +00:00
Chris Lattner	d20154c762	Implement promote and expand for operands of memcpy and friends. This fixes CodeGen/X86/mem*.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43197 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-20 04:07:07 +00:00
Dale Johannesen	e526962fc5	Fix a few places vector operations were not getting the operand's type from the right place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43195 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-20 00:07:52 +00:00
Duncan Sands	7f5f6851c3	Add support for a few more nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43190 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 20:29:48 +00:00
Dale Johannesen	b6210fc92b	Redo "last ppc long double fix" as Chris wants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43189 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 20:29:00 +00:00
Chris Lattner	f185e67844	Fix a really nasty vector miscompilation bill recently introduced. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43181 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 16:47:35 +00:00
Chris Lattner	1c4d492b94	rename ExpandOperation to ExpandOperationResult, as suggested by Duncan git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43177 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 15:28:47 +00:00
Duncan Sands	c8ca2365e5	Support for expanding ADDE and SUBE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43175 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 13:06:17 +00:00
Duncan Sands	5d868b1ffe	If the value types are equal then this routine asserts in later checks rather than producing the ordinary load it is supposed to. Avoid all such hassles by directly returning an ordinary load in this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43174 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 13:05:40 +00:00
Rafael Espindola	5c0d6ed325	Add support for byval function whose argument is not 32 bit aligned. To do this it is necessary to add a "always inline" argument to the memcpy node. For completeness I have also added this node to memmove and memset. I have also added getMem* functions, because the extra argument makes it cumbersome to use getNode and because I get confused by it :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43172 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 10:41:11 +00:00
Chris Lattner	1f39dc42cd	Implement a few new operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43171 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 04:46:45 +00:00
Chris Lattner	50f4395d86	Implement expansion of SINT_TO_FP and UINT_TO_FP operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43170 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 04:32:47 +00:00
Chris Lattner	c99df1b848	implement support for custom expansion of any node type, in one place. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43169 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 04:14:36 +00:00
Chris Lattner	597ab48ca0	Make use of TLI.ExpandOperation, remove softfloat stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43167 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 03:58:25 +00:00
Chris Lattner	c224a53d7a	add expand support for bit_convert result, even allowing custom expansion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43166 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 03:33:14 +00:00
Chris Lattner	f58dac3169	add a new target hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43165 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 03:31:45 +00:00
Bill Wendling	1851898e75	Negative indices aren't allowed here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43161 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 01:10:49 +00:00
Dale Johannesen	fabd32deb0	More ppcf128 issues (maybe the last)? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43160 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-19 00:59:18 +00:00
Bill Wendling	90bfc2d105	Pointer arithmetic should be done with the index the same size as the pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43120 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-18 08:32:37 +00:00
Duncan Sands	70ba3d4803	Support for ADDC/SUBC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43119 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-18 08:22:16 +00:00
Dan Gohman	c623096fe2	Add support for ISD::SELECT in SplitVectorOp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43072 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-17 14:48:28 +00:00
Duncan Sands	f411b83c8c	Return Expand from getOperationAction for all extended types. This is needed for SIGN_EXTEND_INREG at least. It is not clear if this is correct for other operations. On the other hand, for the various load/store actions it seems to correct to return the type action, as is currently done. Also, it seems that SelectionDAG::getValueType can be called for extended value types; introduce a map for holding these, since we don't really want to extend the vector to be 2^32 pointers long! Generalize DAGTypeLegalizer::PromoteResult_TRUNCATE and DAGTypeLegalizer::PromoteResult_INT_EXTEND to handle the various funky possibilities that apints introduce, for example that you can promote to a type that needs to be expanded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43071 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-17 13:49:58 +00:00
Dale Johannesen	db44bf85d8	Disable attempts to constant fold PPC f128. Remove the assumption that this will happen from various places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43053 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-16 23:38:29 +00:00
Duncan Sands	af47b11b95	Initial infrastructure for arbitrary precision integer codegen support. This should have no effect on codegen for other types. Debatable bits: (1) the use (abuse?) of a set in SDNode::getValueTypeList; (2) the length of getTypeToTransformTo, which maybe should be refactored with a non-inline part for extended value types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43030 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-16 09:56:48 +00:00
Duncan Sands	a7c97a7f5b	Fixes due to lack of type-safety for ValueType: (1) ValueType being passed instead of an opcode; (2) ValueType being passed for isVolatile (!) in getLoad. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43028 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-16 09:07:20 +00:00
Chris Lattner	59e84258cb	implement promotion of select and select_cc, allowing MallocBench/gs to work with type promotion on x86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43025 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-16 03:00:22 +00:00
Evan Cheng	4859e277f7	Make CalcLatency() non-recursive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43017 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 21:33:22 +00:00
Chris Lattner	85dd3be735	Move CreateStackTemporary out to SelectionDAG git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42995 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 17:48:57 +00:00
Chris Lattner	37ce9df0da	add a new CreateStackTemporary helper method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42994 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 17:47:20 +00:00
Chris Lattner	cfc24007b1	implement promotion of BR_CC operands, fixing bisort on ppc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42992 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 17:16:12 +00:00
Chris Lattner	1296e9d306	updates from duncan git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42991 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 16:46:29 +00:00
Duncan Sands	65f8d3bf6b	Fix some typos. Call getTypeToTransformTo rather than getTypeToExpandTo. The difference is that getTypeToExpandTo gives the final result of expansion (eg: i128 -> i32 on a 32 bit machine) while getTypeToTransformTo does just one step (i128 -> i64). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42982 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 13:30:18 +00:00
Chris Lattner	01d029b82c	One mundane change: Change ReplaceAllUsesOfValueWith to optionally take a deleted nodes vector, instead of requiring it. One more significant change: Implement the start of a legalizer that just works on types. This legalizer is designed to run before the operation legalizer and ensure just that the input dag is transformed into an output dag whose operand and result types are all legal, even if the operations on those types are not. This design/impl has the following advantages: 1. When finished, this will significantly reduce the amount of code in LegalizeDAG.cpp. It will remove all the code related to promotion and expansion as well as splitting and scalarizing vectors. 2. The new code is very simple, idiomatic, and modular: unlike LegalizeDAG.cpp, it has no 3000 line long functions. :) 3. The implementation is completely iterative instead of recursive, good for hacking on large dags without blowing out your stack. 4. The implementation updates nodes in place when possible instead of deallocating and reallocating the entire graph that points to some mutated node. 5. The code nicely separates out handling of operations with invalid results from operations with invalid operands, making some cases simpler and easier to understand. 6. The new -debug-only=legalize-types option is very very handy :), allowing you to easily understand what legalize types is doing. This is not yet done. Until the ifdef added to SelectionDAGISel.cpp is enabled, this does nothing. However, this code is sufficient to legalize all of the code in 186.crafty, olden and freebench on an x86 machine. The biggest issues are: 1. Vectors aren't implemented at all yet 2. SoftFP is a mess, I need to talk to Evan about it. 3. No lowering to libcalls is implemented yet. 4. Various operations are missing etc. 5. There are FIXME's for stuff I hax0r'd out, like softfp. Hey, at least it is a step in the right direction :). If you'd like to help, just enable the #ifdef in SelectionDAGISel.cpp and compile code with it. If this explodes it will tell you what needs to be implemented. Help is certainly appreciated. Once this goes in, we can do three things: 1. Add a new pass of dag combine between the "type legalizer" and "operation legalizer" passes. This will let us catch some long-standing isel issues that we miss because operation legalization often obfuscates the dag with target-specific nodes. 2. We can rip out all of the type legalization code from LegalizeDAG.cpp, making it much smaller and simpler. When that happens we can then reimplement the core functionality left in it in a much more efficient and non-recursive way. 3. Once the whole legalizer is non-recursive, we can implement whole-function selectiondags maybe... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42981 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 06:10:22 +00:00
Chris Lattner	3cb9351e8a	One xform performed by LegalizeDAG is transformation of "store of fp" to "store of int". Make two changes: 1) only xform "store of f32" if i32 is a legal type for the target. 2) only xform "store of f64" if either i64 or i32 are legal for the target. 3) if i64 isn't legal, manually lower to 2 stores of i32 instead of letting a later pass of legalize do it. This is ugly, but helps future changes I'm about to commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42980 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 05:46:06 +00:00
Chris Lattner	59afba0fe9	Add a (disabled by default) way to view the ID of a node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42978 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-15 05:32:43 +00:00
Chris Lattner	7a3c85583d	remove misleading comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42970 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-14 20:35:12 +00:00
Chris Lattner	fb5b11046b	If a target doesn't have HasMULHU or HasUMUL_LOHI, ExpandOp would return without lo/hi set. Fall through to making a libcall instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42969 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-14 18:35:05 +00:00
Dale Johannesen	5927d8e94d	Disable some compile-time optimizations on PPC long double. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42958 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-14 01:56:47 +00:00
Chris Lattner	e33544ce55	Enhance the truncstore optimization code to handle shifted values and propagate demanded bits through them in simple cases. This allows this code: void foo(char *P) { strcpy(P, "abc"); } to compile to: _foo: ldrb r3, [r1] ldrb r2, [r1, #+1] ldrb r12, [r1, #+2]! ldrb r1, [r1, #+1] strb r1, [r0, #+3] strb r2, [r0, #+1] strb r12, [r0, #+2] strb r3, [r0] bx lr instead of: _foo: ldrb r3, [r1, #+3] ldrb r2, [r1, #+2] orr r3, r2, r3, lsl #8 ldrb r2, [r1, #+1] ldrb r1, [r1] orr r2, r1, r2, lsl #8 orr r3, r2, r3, lsl #16 strb r3, [r0] mov r2, r3, lsr #24 strb r2, [r0, #+3] mov r2, r3, lsr #16 strb r2, [r0, #+2] mov r3, r3, lsr #8 strb r3, [r0, #+1] bx lr testcase here: test/CodeGen/ARM/truncstore-dag-combine.ll This also helps occasionally for X86 and other cases not involving unaligned load/stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42954 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-13 06:58:48 +00:00
Chris Lattner	2b4c279a8e	Add a simple optimization to simplify the input to truncate and truncstore instructions, based on the knowledge that they don't demand the top bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42952 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-13 06:35:54 +00:00
Arnold Schwaighofer	48abc5cf6b	Corrected many typing errors. And removed 'nest' parameter handling for fastcc from X86CallingConv.td. This means that nested functions are not supported for calling convention 'fastcc'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42934 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 21:30:57 +00:00
Dale Johannesen	f646774edd	ppc long double. Implement fabs and fneg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42924 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 19:02:17 +00:00
Dale Johannesen	6e63e09236	Implement i64->ppcf128 conversions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42919 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 17:52:03 +00:00
Dan Gohman	a9b511187b	Fix some corner cases with vectors in copyToRegs and copyFromRegs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42907 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 14:33:11 +00:00
Dan Gohman	9e04c82c0e	Add support to SplitVectorOp for powi, where the second operand is a scalar integer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42906 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 14:13:46 +00:00
Evan Cheng	32dfbeada7	EXTRACT_SUBREG coalescing support. The coalescer now treats EXTRACT_SUBREG like (almost) a register copy. However, it always coalesced to the register of the RHS (the super-register). All uses of the result of a EXTRACT_SUBREG are sub- register uses which adds subtle complications to load folding, spiller rewrite, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42899 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 08:50:34 +00:00
Dale Johannesen	ca68aaa0e5	PPC long double. Implement a couple more conversions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42888 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 01:37:08 +00:00
Dan Gohman	ac9385a555	Add intrinsics for sin, cos, and pow. These use llvm_anyfloat_ty, and so may be overloaded with vector types. And add a testcase for codegen for these. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42885 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-12 00:01:22 +00:00
Dan Gohman	8266952813	Codegen support for vector intrinsics. Factor out the code that expands the "nasty scalar code" for unrolling vectors into a separate routine, teach it how to handle mixed vector/scalar operands, as seen in powi, and use it for several operators, including sin, cos, powi, and pow. Add support in SplitVectorOp for fpow, fpowi and for several unary operators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42884 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 23:57:53 +00:00
Dale Johannesen	fcf4d24ffb	Implement ppc long double->uint conversion. Make ppc long double constants print. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42882 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 23:32:15 +00:00
Dan Gohman	e54be10418	Add runtime library names for pow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42880 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 23:09:10 +00:00
Dan Gohman	07f04fd574	Add an ISD::FPOW node type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42879 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 23:06:37 +00:00
Arnold Schwaighofer	c85e1716f0	Added tail call optimization to the x86 back end. It can be enabled by passing -tailcallopt to llc. The optimization is performed if the following conditions are satisfied: * caller/callee are fastcc * elf/pic is disabled OR elf/pic enabled + callee is in module + callee has visibility protected or hidden git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42870 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 19:40:01 +00:00
Dale Johannesen	a471c2ecda	Next PPC long double bits. First cut at constants. No compile-time support for constant operations yet, just format transformations. Make readers and writers work. Split constants into 2 doubles in Legalize. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42865 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-11 18:07:22 +00:00
Duncan Sands	272dce0137	Correct swapped arguments to getConstant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42824 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-10 09:54:50 +00:00
Dale Johannesen	6eaeff29b8	Next PPC long double bits: ppcf128->i32 conversion. Surprisingly complicated. Adds getTargetNode for 2 outputs, no inputs (missing). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42822 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-10 01:01:31 +00:00
Dan Gohman	525178cdbf	Migrate X86 and ARM from using X86ISD::{,I}DIV and ARMISD::MULHILO{U,S} to use ISD::{S,U}DIVREM and ISD::{S,U}MUL_HIO. Move the lowering code associated with these operators into target-independent in LegalizeDAG.cpp and TargetLowering.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42762 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-08 18:33:35 +00:00
Dan Gohman	389079b59f	DAGCombiner support for UDIVREM/SDIVREM and UMUL_LOHI/SMUL_LOHI. Check if one of the two results unneeded so see if a simpler operator could bs used. Also check to see if each of the two computations could be simplified if they were split into separate operators. Factor out the code that calls visit() so that it can be used for this purpose. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42759 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-08 17:57:15 +00:00
Dan Gohman	08ce976971	Add convenience overloads of SelectionDAG::getNode that take a SDVTList and individual SDOperand operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42753 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-08 15:49:58 +00:00
Dan Gohman	417e11b9bf	In -debug mode, dump SelectionDAGs both before and after the optimization passes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42749 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-08 15:12:17 +00:00
Neil Booth	ccf596a53e	convertFromInteger, as originally written, expected sign-extended input. APInt unfortunately zero-extends signed integers, so Dale modified the function to expect zero-extended input. Make this assumption explicit in the function name. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42732 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-07 11:45:55 +00:00
Evan Cheng	513da43c9c	Reapply 42677. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42692 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-06 08:19:55 +00:00
Chris Lattner	5349de1372	revert evan's patch until the header is committed git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42686 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-06 06:08:17 +00:00
Evan Cheng	c231e8c8a5	Added DAG xforms. e.g. (vextract (v4f32 s2v (f32 load $addr)), 0) -> (f32 load $addr) (vextract (v4i32 bc (v4f32 s2v (f32 load $addr))), 0) -> (i32 load $addr) Remove x86 specific patterns. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42677 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-06 02:46:29 +00:00
Dale Johannesen	638ccd52b9	Next powerpc long double bits. Comparisons work, although not well, and shortening FP converts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42672 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-06 01:24:11 +00:00
Dale Johannesen	161e897b0f	First round of ppc long double. call/return and basic arithmetic works. Rename RTLIB long double functions to distinguish different flavors of long double; the lib functions have different names, alas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42644 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 20:04:43 +00:00
Dan Gohman	e14ea86744	Legalize support for MUL_LOHI and DIVREM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42636 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 14:17:22 +00:00
Dan Gohman	2eb4ebd953	Fix a typo in a comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42635 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 14:11:58 +00:00
Dan Gohman	ccd60799cd	Provide names for MUL_LOHI and DIVREM operators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42634 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 14:11:04 +00:00
Evan Cheng	d5cb5a462b	Chain producing nodes cannot be moved, not chain reading nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42627 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 01:42:35 +00:00
Evan Cheng	117c366219	Oops. Didn't mean to leave this in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42626 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 01:39:40 +00:00
Evan Cheng	f10c973797	If a node that defines a physical register that is expensive to copy. The scheduler will try a number of tricks in order to avoid generating the copies. This may not be possible in case the node produces a chain value that prevent movement. Try unfolding the load from the node before to allow it to be moved / cloned. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42625 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 01:39:18 +00:00
Evan Cheng	39305cf553	Add a variant of getTargetNode() that takes a vector of MVT::ValueType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42620 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 01:10:49 +00:00
Evan Cheng	daccea18ca	Silence a warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42619 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-05 01:09:32 +00:00
Dan Gohman	cb406c2597	Use empty() member functions when that's what's being tested for instead of comparing begin() and end(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42585 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-03 19:26:29 +00:00
Dale Johannesen	9ab7fb3ba4	Rewrite sqrt and powi to use anyfloat. By popular demand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42537 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-02 17:43:59 +00:00
Dale Johannesen	a7ac2bd407	Fix stride computations for long double arrays. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42508 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-01 23:08:35 +00:00
Evan Cheng	450ff01faf	Remove simple scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42499 91177308-0d34-0410-b5e6-96231b3b80d8	2007-10-01 20:44:07 +00:00
Dale Johannesen	d89b117850	remove dup comment git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42486 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-30 19:08:12 +00:00
Dale Johannesen	88216af3ea	Constant fold int-to-long-double conversions; use APFloat for int-to-float/double; use round-to-nearest for these (implementation-defined, seems to match gcc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42484 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-30 18:19:03 +00:00
Dan Gohman	9fe4662d9a	Teach SplitVectorOp how to split INSERT_VECTOR_ELT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42457 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 23:53:40 +00:00
Evan Cheng	22a529990b	If two instructions are both two-address code, favors (schedule closer to terminator) the one that has a CopyToReg use. This fixes 2006-05-11-InstrSched.ll with -new-cc-modeling-scheme. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42453 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 22:32:30 +00:00
Evan Cheng	ddde335cb7	Remove a poor scheduling heuristic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42443 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 19:37:35 +00:00
Evan Cheng	74d2fd8dd8	Trim some unneeded fields. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42442 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 19:24:24 +00:00
Dale Johannesen	72292f0712	Fix long double -> uint64 conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42440 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 18:44:17 +00:00
Dale Johannesen	317096ab37	Add sqrt and powi intrinsics for long double. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42423 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-28 01:08:20 +00:00
Evan Cheng	cd1c00cc65	Avoid inserting a live register more than once. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42410 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-27 18:46:06 +00:00
Evan Cheng	64f638df56	Silence a compiler warning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42389 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-27 07:35:39 +00:00
Evan Cheng	2dc7a0e075	Boogs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42388 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-27 07:29:27 +00:00
Evan Cheng	a2ee2756f7	Be smarter about which node to force schedule. Reduce # of duplications + copies; Added statistics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42387 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-27 07:09:03 +00:00
Evan Cheng	6e4c46cea5	Backtracking only when it won't create a cycle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42384 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-27 00:25:29 +00:00
Evan Cheng	42d60274ea	- Move getPhysicalRegisterRegClass() from ScheduleDAG to MRegisterInfo. - Added ability to emit cross class register copies to the BBRU scheduler. - More aggressive backtracking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42375 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-26 21:36:17 +00:00
Dale Johannesen	2f42901dff	Enable codegen for long double abs, sin, cos git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42368 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-26 21:10:55 +00:00
Dale Johannesen	f41db2136f	Fix f80 UNDEF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42359 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-26 17:26:49 +00:00
Evan Cheng	9efce638d3	Allow copyRegToReg to emit cross register classes copies. Tested with "make check"! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42346 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-26 06:25:56 +00:00
Dan Gohman	c3b0b5ca1d	Move the setOperationAction(ISD::DEBUG_LOC, MVT::Other, Expand) and the check to see if the assembler supports .loc from X86TargetLowering into the superclass TargetLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42297 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-25 15:10:49 +00:00
Evan Cheng	a6fb1b6743	Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42284 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-25 01:54:36 +00:00
Dan Gohman	e40c7b0973	Use the correct result value type instead of using getValueType(0) in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort in the included testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42264 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-24 15:54:53 +00:00
Chris Lattner	b690a005c1	initialize isstore/isload fields in ctor, fixing PR1695 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42222 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-22 07:02:12 +00:00
Dale Johannesen	910993e8dc	Change APFloat::convertFromInteger to take the incoming bit width instead of number of words allocated, which makes it actually work for int->APF conversions. Adjust callers. Add const to one of the APInt constructors to prevent surprising match when called with const argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42210 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-21 22:09:37 +00:00
Chris Lattner	dfe8934258	initialize SetCCResultContents, fixing PR1693 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42193 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-21 17:06:39 +00:00
Dale Johannesen	73328d14ac	More long double fixes. x86_64 should build now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42155 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-19 23:55:34 +00:00
Dale Johannesen	f4d4832724	Fix longdouble -> uint conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42143 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-19 17:53:26 +00:00
Evan Cheng	713a98dee8	Use struct SDep instead of std::pair for SUnit pred and succ lists. First step in tracking physical register output dependencies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42125 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-19 01:38:40 +00:00
Evan Cheng	e0480d2ec2	Fix a bogus splat xform: shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2> != <undef, undef, x, undef> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42111 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-18 21:54:37 +00:00
Dale Johannesen	c7b21d520a	Prevent crash on long double. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42103 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-18 18:36:59 +00:00
Devang Patel	8feb1f4467	Do not hide APInt::dump() inside #ifndef NDEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42068 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-17 22:24:00 +00:00
Devang Patel	ffe3612af4	This is not ideal but unbreaks build failure. APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42047 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-17 20:03:03 +00:00
Dale Johannesen	118cd9dbba	Adjust per revew comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42002 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-16 16:51:49 +00:00
Dale Johannesen	9e3d3abd93	Remove the assumption that FP's are either float or double from some of the many places in the optimizers it appears, and do something reasonable with x86 long double. Make APInt::dump() public, remove newline, use it to dump ConstantSDNode's. Allow APFloats in FoldingSet. Expand X86 backend handling of long doubles (conversions to/from int, mostly). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41967 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-14 22:26:36 +00:00
Chris Lattner	3d6992fc7b	Fix build problems on Cygwin (PR1652), patch by Patrick Walton. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41923 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-13 06:09:48 +00:00
Evan Cheng	6600377546	Bug fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41900 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-13 00:06:00 +00:00
Evan Cheng	6900132813	Remove dead code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41899 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-12 23:45:46 +00:00
Evan Cheng	05e69c1f23	Yet another getTargetNode variant. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41898 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-12 23:39:49 +00:00
Dale Johannesen	9d5f456077	Revise previous patch per review comments. Next round of x87 long double stuff. Getting close now, basically works. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41875 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-12 03:30:33 +00:00
Dale Johannesen	3f6eb7419d	Add APInt interfaces to APFloat (allows directly access to bits). Use them in place of float and double interfaces where appropriate. First bits of x86 long double constants handling (untested, probably does not work). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41858 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-11 18:32:33 +00:00
Duncan Sands	f7331b3dd7	Fold the adjust_trampoline intrinsic into init_trampoline. There is now only one trampoline intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41841 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-11 14:10:23 +00:00
Chris Lattner	61c5ff460b	Emit: cmpl %eax, %ecx setae %al movzbl %al, %eax instead of: cmpl %eax, %ecx setb %al xorb $1, %al movzbl %al, %eax when using logical not of a C comparison. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41807 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-10 21:39:07 +00:00
Chris Lattner	87b51bc2b0	1. Don't call Value::getName(), which is slow. 2. Lower calls to fabs and friends to FABS nodes etc unless the function has internal linkage. Before we wouldn't lower if it had a definition, which is incorrect. This allows us to compile: define double @fabs(double %f) { %tmp2 = tail call double @fabs( double %f ) ret double %tmp2 } into: _fabs: fabs f1, f1 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41805 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-10 21:15:22 +00:00
Dale Johannesen	907f28ce30	Implement misaligned FP loads and stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41786 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-08 19:29:23 +00:00
Rafael Espindola	588af2fb99	Add support for having different alignment for objects on call frames. The x86-64 ABI states that objects passed on the stack have 8 byte alignment. Implement that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41768 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-07 14:52:14 +00:00
Anton Korobeynikov	8806c7b1f5	Split eh.select / eh.typeid.for intrinsics into i32/i64 versions. This is needed, because they just "mark" register liveins and we let frontend solve type issue, not lowering code :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41763 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-07 11:39:35 +00:00
Owen Anderson	718cb665ca	Add lengthof and endof templates that hide a lot of sizeof computations. Patch by Sterling Stein! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41758 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-07 04:06:50 +00:00
Dale Johannesen	43421b3dd7	Next round of APFloat changes. Use APFloat in UpgradeParser and AsmParser. Change all references to ConstantFP to use the APFloat interface rather than double. Remove the ConstantFP double interfaces. Use APFloat functions for constant folding arithmetic and comparisons. (There are still way too many places APFloat is just a wrapper around host float/double, but we're getting there.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41747 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-06 18:13:44 +00:00
Duncan Sands	57810cdac4	Fix PR1628. When exception handling is turned on, labels are generated bracketing each call (not just invokes). This is used to generate entries in the exception table required by the C++ personality. However it gets in the way of tail-merging. This patch solves the problem by no longer placing labels around ordinary calls. Instead we generate entries in the exception table that cover every instruction in the function that wasn't covered by an invoke range (the range given by the labels around the invoke). As an optimization, such entries are only generated for parts of the function that contain a call, since for the moment those are the only instructions that can throw an exception [1]. As a happy consequence, we now get a smaller exception table, since the same region can cover many calls. While there, I also implemented folding of invoke ranges - successive ranges are merged when safe to do so. Finally, if a selector contains only a cleanup, there's a special shorthand for it - place a 0 in the call-site entry. I implemented this while there. As a result, the exception table output (excluding filters) is now optimal - it cannot be made smaller [2]. The problem with throw filters is that folding them optimally is hard, and the benefit of folding them is minimal. [1] I tested that having trapping instructions (eg divide by zero) in such a region doesn't cause trouble. [2] It could be made smaller with the help of higher layers, eg by having branch folding reorder basic blocks ending in invokes with the same landing pad so they follow each other. I don't know if this is worth doing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41718 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-05 11:27:52 +00:00
Evan Cheng	a34d395358	Fix for PR1632. EHSELECTION always produces a i32 value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41712 91177308-0d34-0410-b5e6-96231b3b80d8	2007-09-04 20:39:26 +00:00
Dale Johannesen	c4dd3c3b51	Add mod, copysign, abs operations to APFloat. Implement some constant folding in SelectionDAG and DAGCombiner using APFloat. Remove double versions of constructor and getValue from ConstantFPSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41664 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-31 23:34:27 +00:00
Dale Johannesen	ee8476847d	Revise per review of previous patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41645 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-31 17:03:33 +00:00
Dale Johannesen	eaf089430e	Enhance APFloat to retain bits of NaNs (fixes oggenc). Use APFloat interfaces for more references, mostly of ConstantFPSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41632 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-31 04:03:46 +00:00
Dale Johannesen	f04afdbb48	Change LegalFPImmediates to use APFloat. Add APFloat interfaces to ConstantFP, SelectionDAG. Fix integer bit in double->APFloat conversion. Convert LegalizeDAG to use APFloat interface in ConstantFPSDNode uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41587 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-30 00:23:21 +00:00
Anton Korobeynikov	055c5449a4	Fix use of declaration inside case block git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41584 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-29 23:18:48 +00:00
Anton Korobeynikov	066f7b40f8	Lower FRAME_TO_ADDR_OFFSET to zero by default (if not custom lowered) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41578 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-29 19:28:29 +00:00
Dan Gohman	3e1a7aef17	Add an option, -view-sunit-dags, for viewing the actual SUnit DAGs used by scheduling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41556 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-28 20:32:58 +00:00
Dan Gohman	e9c8fa095e	Make DAGCombiner's global alias analysis query more precise in the case where both pointers have non-zero offsets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41491 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-27 16:32:11 +00:00
Dan Gohman	5f43f92c69	If the source and destination pointers in an llvm.memmove are known to not alias each other, it can be translated as an llvm.memcpy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41489 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-27 16:26:13 +00:00
Duncan Sands	6590b0457c	There is an impedance matching problem between LLVM and gcc exception handling: if an exception unwinds through an invoke, then execution must branch to the invoke's unwind target. We previously tried to enforce this by appending a cleanup action to every selector, however this does not always work correctly due to an optimization in the C++ unwinding runtime: if only cleanups would be run while unwinding an exception, then the program just terminates without actually executing the cleanups, as invoke semantics would require. I was hoping this wouldn't be a problem, but in fact it turns out to be the cause of all the remaining failures in the LLVM testsuite (these also fail with -enable-correct-eh-support, so turning on -enable-eh didn't make things worse!). Instead we need to append a full-blown catch-all to the end of each selector. The correct way of doing this depends on the personality function, i.e. it is language dependent, so can only be done by gcc. Thus this patch which generalizes the eh.selector intrinsic so that it can handle all possible kinds of action table entries (before it didn't accomodate cleanups): now 0 indicates a cleanup, and filters have to be specified using the number of type infos plus one rather than the number of type infos. Related gcc patches will cause Ada to pass a cleanup (0) to force the selector to always fire, while C++ will use a C++ catch-all (null). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41484 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-27 15:47:50 +00:00
Dale Johannesen	e6c1742914	Revise per review comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41409 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-26 01:18:27 +00:00
Dale Johannesen	87503a63d5	Add APFloat interface to ConstantFPSDNode. Change over uses in DAGCombiner. Fix interfaces to work with APFloats. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41407 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-25 22:10:57 +00:00
Chris Lattner	09ec1b0583	Allow target constants to be illegal types. The target should know how to handle them. This fixes test/CodeGen/Generic/asm-large-immediate.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41388 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-25 01:00:22 +00:00
Chris Lattner	7df31dc89b	Teach the dag scheduler to handle inline asm nodes with multi-value immediate operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41386 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-25 00:53:07 +00:00
Chris Lattner	48884cd80b	rename isOperandValidForConstraint to LowerAsmOperandForConstraint, changing the interface to allow for future changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41384 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-25 00:47:38 +00:00
Dale Johannesen	12595d7b16	Poison APFloat::operator==. Replace existing uses with bitwiseIsEqual. This means backing out the preceding change to Constants.cpp, alas. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41378 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-24 22:09:56 +00:00
Dale Johannesen	8bb369b807	Use APFloat internally for ConstantFPSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41372 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-24 20:59:15 +00:00
Anton Korobeynikov	2f597bd09e	Perform correct codegen for eh_dwarf_cfa intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41316 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-23 07:21:06 +00:00
Dan Gohman	8d1bfad00b	Minor cleanups to reduce some spurious differences between different scheduler implementations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41191 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-20 19:28:38 +00:00
Rafael Espindola	21485be444	Partial implementation of calling functions with byval arguments: ) The needed information is propagated to the DAG ) The X86-64 backend detects it and aborts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41179 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-20 15:18:24 +00:00
Evan Cheng	571c4788d5	Fold C ? 0 : 1 to ~C or zext(~C) or trunc(~C) depending the types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41163 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-18 05:57:05 +00:00
Evan Cheng	3e20bba5eb	Avoid issue on 64-bit hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41143 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-17 18:02:22 +00:00
David Greene	fd273b6ed5	Fix GLIBCXX_DEBUG error of comparing two singular iterators git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41139 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-17 15:13:55 +00:00
Evan Cheng	61bbbabe3d	If dynamic_stackalloc alignment is > stack alignment, first issue an instruction to align the stack ptr before the decrement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41133 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-16 23:50:06 +00:00
Evan Cheng	4515779fa3	- If a dynamic_stackalloc alignment requirement is <= stack alignment, then the alignment argument is ignored. - Always round up the size of the allocation to multiples of stack alignment to ensure the stack ptr is never left in an invalid state after a dynamic_stackalloc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41132 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-16 23:46:29 +00:00
Lauro Ramos Venancio	c90f08936d	Implement FPOWI ExpandOp. Fix PR1287. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41112 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-15 22:13:27 +00:00
Dan Gohman	25ac7e8364	Fix EXTRACT_ELEMENT, EXTRACT_SUBVECTOR, and EXTRACT_VECTOR_ELT to use an intptr ValueType instead of i32 for the index operand in getCopyToParts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40987 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-10 14:59:38 +00:00
Rafael Espindola	594d37e21a	propagate struct size and alignment of byval arguments to the DAG git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40986 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-10 14:44:42 +00:00
Dale Johannesen	ab081c7195	Update per review comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40965 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-09 17:27:48 +00:00
Dale Johannesen	5411a3937f	long double 9 of N. This finishes up the X86-32 bits (constants are still not handled). Adds ConvertActions to control fp-to-fp conversions (these are currently defaulted for all other targets, so no changes there). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40958 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-09 01:04:01 +00:00
Scott Michel	c1513d24ea	If a target really needs to custom lower constants, it should be allowed to do so. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40955 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-08 23:23:31 +00:00
Chandler Carruth	6994040a95	This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future. This also changes the syntax for llvm.bswap, llvm.part.set, llvm.part.select, and llvm.ct* intrinsics. They are automatically upgraded by both the LLVM ASM reader and the bitcode reader. The test cases have been updated, with special tests added to ensure the automatic upgrading is supported. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40807 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-04 01:51:18 +00:00
Chris Lattner	b15e49597f	don't redefine a parameter git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40748 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-02 18:08:16 +00:00
Evan Cheng	33d5595d66	Do not emit copies for physical register output if it's not used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40722 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-02 05:29:38 +00:00
Scott Michel	335f4f7788	Style police: Expand the tabs to spaces! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40712 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-02 02:22:46 +00:00
Evan Cheng	8409747efa	Instead of adding copyfromreg's to handle physical definitions. Now isel can simply specify them as results and let scheduledag handle them. That is, instead of SDOperand Flag = DAG.getTargetNode(Opc, MVT::i32, MVT::Flag, ...) SDOperand Result = DAG.getCopyFromReg(Chain, X86::EAX, MVT::i32, Flag) Just write: SDOperand Result = DAG.getTargetNode(Opc, MVT::i32, MVT::i32, ...) And let scheduledag emit the move from X86::EAX to a virtual register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40710 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-02 00:28:15 +00:00
Lauro Ramos Venancio	f3c13c82e3	Expand unaligned loads/stores when the target doesn't support them. (PR1548) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40682 91177308-0d34-0410-b5e6-96231b3b80d8	2007-08-01 19:34:21 +00:00
Scott Michel	910b66d8d6	- Allow custom lowering for CTPOP, CTTZ, CTLZ. - Fixed an existing unexpanded tab. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40605 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-30 21:00:31 +00:00
Dan Gohman	be444ed6db	Fix a bug in getCopyFromParts turned up in the testcase for PR1132. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40598 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-30 19:09:17 +00:00
Duncan Sands	36397f5034	Support for trampolines, except for X86 codegen which is still under discussion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40549 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-27 12:58:54 +00:00
Dan Gohman	559742c0ea	Fix the alias analysis query in DAGCombiner to not add in two offsets. The SrcValueOffset values are the real offsets from the SrcValue base pointers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40534 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-26 16:14:06 +00:00
Christopher Lamb	e24f8f1ec9	Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40520 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-26 08:12:07 +00:00
Christopher Lamb	557c3631d3	Add selection DAG nodes for subreg insert/extract. PR1350 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40516 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-26 07:34:40 +00:00
Christopher Lamb	844228a631	Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40510 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-26 03:33:13 +00:00
Dan Gohman	dc9b3d0bb5	Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40480 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-24 23:00:27 +00:00
Dan Gohman	275769a77a	Fix some uses of dyn_cast to be uses of cast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40443 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-23 20:24:29 +00:00
Duncan Sands	70d0bd1624	As pointed out by g++-4.2, the original code didn't do what it thought it was doing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40044 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-19 07:31:58 +00:00
Dan Gohman	48613b930a	It's not necessary to do rounding for alloca operations when the requested alignment is equal to the stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-18 16:29:46 +00:00
Dan Gohman	07a96765da	Fix comments about vectors to use the current wording. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39921 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-16 14:29:03 +00:00
Nick Lewycky	6d4b711e7f	Fix the build. Patch from Holger Schurig. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39856 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-14 15:11:14 +00:00
Anton Korobeynikov	2365f51ed0	Long live the exception handling! This patch fills the last necessary bits to enable exceptions handling in LLVM. Currently only on x86-32/linux. In fact, this patch adds necessary intrinsics (and their lowering) which represent really weird target-specific gcc builtins used inside unwinder. After corresponding llvm-gcc patch will land (easy) exceptions should be more or less workable. However, exceptions handling support should not be thought as 'finished': I expect many small and not so small glitches everywhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39855 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-14 14:06:15 +00:00
Dan Gohman	a346615d11	Fix the comment for LegalizeOp to more accurately reflect what it does. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39827 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-13 20:14:11 +00:00
Dan Gohman	05d92fe7c4	Don't call SimplifyVBinOp for non-vector operations, following earlier review feedback. This theoretically makes the common (scalar) case more efficient. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39823 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-13 20:03:40 +00:00
Dale Johannesen	e7e7d0d7e3	Skeleton of post-RA scheduler; doesn't do anything yet. Change name of -sched option and DEBUG_TYPE to pre-RA-sched; adjust testcases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39816 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-13 17:13:54 +00:00
Dan Gohman	743d3a7548	Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for the new CONCAT_VECTORS node type instead, as that's what legalize uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38503 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 18:20:44 +00:00
Evan Cheng	5e2456c959	If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38496 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 17:52:20 +00:00
Dan Gohman	70fb1aefd5	Fix a bug in the folding of binary operators to undef. Thanks to Lauro for spotting this! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38491 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 15:19:29 +00:00
Dan Gohman	d595b5f1f0	Fix the folding of undef in several binary operators to recognize undef in either the left or right operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38489 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 14:20:37 +00:00
Evan Cheng	af825c840e	When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38485 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 07:08:32 +00:00
Evan Cheng	c63d391c9a	Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38484 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-10 06:59:55 +00:00
Dan Gohman	d6fd1bc122	Preserve volatililty and alignment information when lowering or simplifying loads and stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38473 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-09 22:18:38 +00:00
Dan Gohman	532dc2e1f2	Change getCopyToParts and getCopyFromParts to always use target-endian register ordering, for both physical and virtual registers. Update the PPC target lowering for calls to expect registers for the call result to already be in target order. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38471 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-09 20:59:04 +00:00
Dan Gohman	93f81e2822	Initialize the IndexedModeActions array with memset before updating it with calls to setIndexedLoadAction/setIndexedStoreAction, which only update a few bits at a time. This avoids ostensible undefined behavior of operationg on values which may be trap-representations, and as a practical matter fixes errors from valgrind, which doesn't track uninitialized memory with bit granularity. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38468 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-09 20:49:44 +00:00
Chris Lattner	e094f54f4c	Fix this warning: DAGCombiner.cpp: In member function 'llvm::SDOperand<unnamed>::DAGCombiner::visitOR(llvm::SDNode*)': DAGCombiner.cpp:1608: warning: passing negative value '-0x00000000000000001' for argument 1 to 'llvm::SDOperand llvm::SelectionDAG::getConstant(uint64_t, llvm::MVT::ValueType, bool)' oiy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@38458 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-09 16:16:34 +00:00
Duncan Sands	f664e41b20	The exception handling intrinsics return values, so must be lowered to a value, not nothing at all. Subtle point: I made eh_selector return 0 and eh_typeid_for return 1. This means that only cleanups (destructors) will be run as the exception unwinds [if eh_typeid_for returned 0 then it would be as if the first catch always matched, and the corresponding handler would be run], which is probably want you want in the CBE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37947 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 14:46:23 +00:00
Rafael Espindola	1aa7efbd2c	Add the byval attribute git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37940 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 10:57:03 +00:00
Duncan Sands	902919541f	Remove propagateEHRegister in favour of a more limited fix, that is adequate while PR1508 remains unresolved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37938 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 09:18:59 +00:00
Duncan Sands	b4fd45e2fc	Remove ExtractGlobalVariable - use StripPointerCasts instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37937 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 09:10:03 +00:00
Evan Cheng	86da6600ae	Workaround of getCopyToRegs and getCopyFromRegs bugs for big-endian machines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37935 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 01:47:35 +00:00
Evan Cheng	991262834d	Change CalculateHeights and CalculateDepths to be non-recursive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37934 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-06 01:37:28 +00:00
Dan Gohman	50b153335d	Make the debug string for ISD::MERGE_VALUES consistent with the others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37922 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-05 20:15:43 +00:00
Dan Gohman	6183f78cf8	Add a parameter to getCopyToParts and getCopyFromParts to specify whether endian swapping should be done, and update the code to use it. This fixes some register ordering issues on big-endian systems, such as PowerPC, introduced by the recent illegal by-val arguments changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37921 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-05 20:12:34 +00:00
Duncan Sands	cf26d7ccac	Extend eh.selector to support both catches and filters. Drop the eh.filter intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37875 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-04 20:52:51 +00:00
Dan Gohman	613e0d8008	Fix several over-aggressive folds for undef nodes in dagcombine, to follow the rules for undef used in instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37851 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-03 14:03:57 +00:00
Dale Johannesen	849f214a4e	Fix for PR 1505 (and 1489). Rewrite X87 register model to include f32 variants. Some factoring improvments forthcoming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37847 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-03 00:53:03 +00:00
Dan Gohman	27a70be55f	Replace ExpandScalarFormalArgs and ExpandScalarCallArgs with the newly refactored getCopyFromParts and getCopyToParts, which are more general. This effectively adds support for lowering illegal by-val vector call arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37843 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-02 16:18:06 +00:00
Dan Gohman	23ff1826b9	Teach GetNegatedExpression to negate 0-B to B in UnsafeFPMath mode, and visitFSUB to fold 0-B to -B in UnsafeFPMath mode. Also change visitFNEG to use isNegatibleForFree/GetNegatedExpression instead of doing a subset of the same thing manually. This fixes test/CodeGen/X86/negative-sin.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37842 91177308-0d34-0410-b5e6-96231b3b80d8	2007-07-02 15:48:56 +00:00
Evan Cheng	c45453fa1d	Only do FNEG xform when the vector type is a floating point type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37818 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 21:44:35 +00:00
David Greene	821262953a	Remove unused variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37816 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 21:42:03 +00:00
Evan Cheng	c908dcde45	Fix a vector FP constant CSE bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37814 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 21:36:04 +00:00
David Greene	a2a488594d	Remove unnecessary attributions in comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37799 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 03:42:23 +00:00
David Greene	cfacc8f5d2	Fix reference to cached end iterator invalidated by an erase operation. Uncovered by _GLIBCXX_DEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37795 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 02:49:11 +00:00
David Greene	a4ab2e8c72	Remove the "special tie breaker" because it resulted in inconsistent ordering and thus violated the strict weak ordering requirement of priority_queue. Uncovered by _GLIBCXX_DEBUG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37794 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 02:48:09 +00:00
Dan Gohman	10a7aa6dea	Fix an assertion failure in legalizing bitcast operators on targets where vectors are split down to single elements as part of legalization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37785 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-29 00:09:08 +00:00
Dan Gohman	b6f5b00c3b	Add new TargetLowering code to provide the final register type that an illegal value type will be transformed to, for code that needs the register type after all transformations instead of just after the first transformation. Factor out the code that uses this information to do copy-from-regs and copy-to-regs for various purposes into separate functions so that they are done consistently. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37781 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-28 23:29:44 +00:00
Evan Cheng	e47c333a12	Partial fix for PR1502: If a EH register is needed in a successor of landing pad, add it as livein to all the blocks in the paths between the landing pad and the specified block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37763 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-27 18:45:32 +00:00
Dan Gohman	6595cb3000	Rename ("shrinkify") MVT::isExtendedValueType to MVT::isExtendedVT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37758 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-27 16:08:04 +00:00
Dan Gohman	8c8c5fcbd7	Use getVectorTypeBreakdown in FunctionLoweringInfo::CreateRegForValue to compute the number and type of registers needed for vector values instead of computing it manually. This fixes PR1529. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37755 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-27 14:34:07 +00:00
Dan Gohman	89b20c07e9	Make the comment for ScalarizeVectorOp mention that it is only for use with single-element vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37752 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-27 14:06:22 +00:00
Dan Gohman	7f32156bb9	Generalize MVT::ValueType and associated functions to be able to represent extended vector types. Remove the special SDNode opcodes used for pre-legalize vector operations, and the special MVT::Vector type used with them. Adjust lowering and legalize to work with the normal SDNode kinds instead, and to use the normal MVT functions to work with vector types instead of using the two special operands that the pre-legalize nodes held. This allows pre-legalize and post-legalize DAGs, and the code that operates on them, to be more consistent. Pre-legalize vector operators can be handled more consistently with scalar operators. And, -view-dag-combine1-dags and -view-legalize-dags now look prettier for vector code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37719 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-25 16:23:39 +00:00
Dan Gohman	ea859be53c	Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from TargetLowering to SelectionDAG so that they have more convenient access to the current DAG, in preparation for the ValueType routines being changed from standalone functions to members of SelectionDAG for the pre-legalize vector type changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37704 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-22 14:59:07 +00:00
Evan Cheng	0b2ce1fc19	std::set is really really terrible. Switch to SmallPtrSet to reduce compile time. For Duraid's example. The overall isel time is reduced from 0.6255 sec to 0.1876 sec. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37701 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-22 01:35:51 +00:00
Dan Gohman	2d74a318de	Tidy up ValueType names in comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37688 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-21 14:48:26 +00:00
Dan Gohman	b9f1019696	Rename TargetLowering::getNumElements and friends to TargetLowering::getNumRegisters and similar, to avoid confusion with the actual number of elements for vector types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37687 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-21 14:42:22 +00:00
Evan Cheng	b13cdbd865	Xforms: (add (select cc, 0, c), x) -> (select cc, x, (add, x, c)) (sub x, (select cc, 0, c)) -> (select cc, x, (sub, x, c)) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37685 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-21 07:39:16 +00:00
Dan Gohman	b5bec2b6f6	Pass a SelectionDAG into SDNode::dump everywhere it's used, in prepration for needing the DAG node to print pre-legalize extended value types, and to get better debug messages with target-specific nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37656 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-19 14:13:56 +00:00
Chris Lattner	aeeccfc5b2	add isVarArg to CCState git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37640 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-19 00:11:09 +00:00
Chris Lattner	e10e6f7a36	make ComputeTopDownOrdering significantly faster and use less stack space by making it non-recursive git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37629 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-18 21:28:10 +00:00
Dan Gohman	7a0a4fc912	Make chain dependencies blue, in addition to being dashed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37626 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-18 15:30:16 +00:00
Tanya Lattner	24e5aada7d	Codegen support (stripped out) for the annotate attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37608 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-15 22:26:58 +00:00
Chris Lattner	c2c28fc24c	Fix CodeGen/X86/inline-asm-x-scalar.ll:test4, by retaining regclass info for tied register constraints. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37601 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-15 19:11:01 +00:00
Duncan Sands	f40708223e	Workaround for PR1508. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37597 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-15 19:04:19 +00:00
Dan Gohman	51eaa86758	Rename MVT::getVectorBaseType to MVT::getVectorElementType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37579 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-14 22:58:02 +00:00
Duncan Sands	ea632439d4	Only correctly lower exception handing intrinsics if exception handling is turned on. Likewise for scanning of invokes to mark landing pads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37570 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-13 16:53:21 +00:00
Dan Gohman	6595635175	Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in the case that the full register is to be split into subvectors instead of scalars. This replaces uses of VBIT_CONVERT to present values as vector-of-vector types in order to make whole subvectors accessible via BUILD_VECTOR and EXTRACT_VECTOR_ELT. This is in preparation for adding extended ValueType values, where having vector-of-vector types is undesirable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37569 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-13 15:12:02 +00:00
Dan Gohman	2046e12f02	When creating CopyFromReg nodes, always use legal types. And use the correct types for the result vector, even though it is currently bitcasted to a different type immediately. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37568 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-13 14:55:16 +00:00
Duncan Sands	f19f6bb31e	The fix that was applied for PR1224 stops the compiler crashing but breaks exception handling. The problem described in PR1224 is that invoke is a terminator that can produce a value. The value may be needed in other blocks. The code that writes to registers values needed in other blocks runs before terminators are lowered (in this case invoke) so asserted because the value was not yet available. The fix that was applied was to do invoke lowering earlier, before writing values to registers. The problem this causes is that the code to copy values to registers can be output after the invoke call. If an exception is raised and control is passed to the landing pad then this copy-code will never execute. If the value is needed in some code path reached via the landing pad then that code will get something bogus. So revert the original fix and simply skip invoke values in the general copying to registers code. Instead copy the invoke value to a register in the invoke lowering code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37567 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-13 05:51:31 +00:00
Dale Johannesen	62000eee7d	Do not change the size of function arguments. PR 1489. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37496 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-07 21:07:15 +00:00
Duncan Sands	9fac0b5ff2	Additional fix for PR1422: make sure the landing pad label is placed in the correct machine basic block - do not rely on the eh.exception intrinsic being in the landing pad: the loop optimizers can move it out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37463 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-06 10:05:18 +00:00
Dan Gohman	3983358555	Pass the DAG to SDNode::dump to let it do more detailed dumps in some cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37413 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-04 16:17:33 +00:00
Dan Gohman	575e2f4ea8	Resolve implicit alignment before computing the FoldingSet information so that the CSE map always contains explicit alignment information. This allows more loads to be CSE'd when there is a mix of explicit-alignment loads and implicit-alignment loads. Also, in SelectionDAG::FindModifiedNodeSlot, add the operands to the FoldingSetNodeID before the load/store information instead of after, so that it matches what is done elsewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37411 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-04 15:49:41 +00:00
Duncan Sands	73ef58ab92	Integrate exception filter support and exception catch support. This simplifies the code in DwarfWriter, allows for multiple filters and makes it trivial to specify filters accompanied by cleanups or catch-all specifications (see next patch). What a deal! Patch blessed by Anton. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37398 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-02 16:53:42 +00:00
Duncan Sands	398898cc6a	Since TypeInfos are passed as i8 pointers, a NULL TypeInfo should be passed as a null i8 pointer not as a 0 i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37383 91177308-0d34-0410-b5e6-96231b3b80d8	2007-06-01 08:18:30 +00:00
Chris Lattner	4e7e6cd13a	Fix CodeGen/PowerPC/2007-05-30-dagcombine-miscomp.ll, and PR1473. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37362 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-30 16:30:06 +00:00
Chris Lattner	3adf951364	tighten up recursion depth again git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37330 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-25 02:19:06 +00:00
Dan Gohman	fa73ea2d9f	Minor comment cleanups. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37321 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-24 14:36:04 +00:00
Dan Gohman	237898ac1f	Add explicit qualification for namespace MVT members. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37320 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-24 14:33:05 +00:00
Evan Cheng	c843abe868	Fix a typo that caused combiner to create mal-formed pre-indexed store where value store is the same as the base pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37318 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-24 02:35:39 +00:00
Anton Korobeynikov	070280e97f	Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37311 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-23 11:08:31 +00:00
Chris Lattner	501fee71e0	prevent exponential recursion in isNegatibleForFree git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37310 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-23 07:35:22 +00:00
Chris Lattner	7667c0bac3	same patch as the previous one, but the symmetric case git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37249 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-19 00:46:51 +00:00
Chris Lattner	2ad913b342	Disable the (A == (B-A)) -> 2*A == B xform when the sub has multiple uses (in this case, the xform introduces an extra operation). This compiles PowerPC/compare-duplicate.ll into: _test: subf r2, r3, r4 cmplw cr0, r2, r3 bne cr0, LBB1_2 ;F instead of: _test: slwi r2, r3, 1 subf r3, r3, r4 cmplw cr0, r4, r2 bne cr0, LBB1_2 ;F This is target independent of course. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37246 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-19 00:43:44 +00:00
Dan Gohman	fcc4dd91e5	Qualify calls to getTypeForValueType with MVT:: too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37233 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-18 18:41:29 +00:00
Dan Gohman	b55757ec5f	Qualify several calls to functions in the MVT namespace, for consistency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37230 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-18 17:52:13 +00:00
Chris Lattner	3fc5b01d38	disable MaskedValueIsZero, ComputeMaskedBits, and SimplifyDemandedBits for i128 integers. The 64-bit masks are not wide enough to represent the results. These should be converted to APInt someday. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37169 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-17 18:19:23 +00:00
Chris Lattner	b429f7303e	add expand support for ADDC/SUBC/ADDE/SUBE so we can codegen 128-bit add/sub on 32-bit (or less) targets git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37168 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-17 18:15:41 +00:00
Evan Cheng	d60483ef99	Add target hook to specify block size limit for if-conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37134 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-16 23:45:53 +00:00
Dale Johannesen	98a6c62aff	Don't fold bitconvert(load) for preinc/postdec loads. Likewise stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37130 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-16 22:45:30 +00:00
Chris Lattner	c76d4410ab	Use a ptr set instead of a linear search to unique TokenFactor operands. This fixes PR1423 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37102 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-16 06:37:59 +00:00
Evan Cheng	93003b8cf2	Bug fix: should check ABI alignment, not pref. alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37094 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-16 02:04:50 +00:00
Lauro Ramos Venancio	b5bb7ffa9c	Fix an infinite recursion in GetNegatedExpression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37086 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-15 17:05:43 +00:00
Chris Lattner	c90233b836	Fix some subtle issues handling immediate values. This fixes test/CodeGen/ARM/2007-05-14-InlineAsmCstCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37069 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-15 01:33:58 +00:00
Chris Lattner	2944652569	implement a simple fneg optimization/propagation thing. This compiles: CodeGen/PowerPC/fneg.ll into: _t4: fmul f0, f3, f4 fmadd f1, f1, f2, f0 blr instead of: _t4: fneg f0, f3 fmul f0, f0, f4 fmsub f1, f1, f2, f0 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37054 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-14 22:04:50 +00:00
Evan Cheng	2c4f94363a	Can't fold the bit_convert is the store is a truncating store. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36962 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-09 21:49:47 +00:00
Anton Korobeynikov	7294b58ecd	Do not assert, when case range split metric is zero and JTs are not allowed: just emit binary tree in this case. This fixes PR1403. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36959 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-09 20:07:08 +00:00
Evan Cheng	c2cd2b29f5	Forgot a check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36910 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-07 21:36:06 +00:00
Evan Cheng	59d5b68dff	Enable a couple of xforms: - (store (bitconvert v)) -> (store v) if resultant store does not require higher alignment - (bitconvert (load v)) -> (load (bitconvert*)v) if resultant load does not require higher alignment git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36908 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-07 21:27:48 +00:00
Duncan Sands	4fee7034d5	Parameter attributes on invoke calls were being lost due to the wrong attribute index being used. Fix proposed by Anton Korobeynikov, who asked me to implement and commit it for him. This is PR1398. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36906 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-07 20:49:28 +00:00
Anton Korobeynikov	b682448ebd	Detabify git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36891 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-06 20:14:21 +00:00
Chris Lattner	b464c44679	Propagate alignment/volatility in two places. Implement support for expanding a bitcast from an illegal vector type to a legal one (e.g. 4xi32 -> 4xf32 in SSE1). This fixes PR1371 and CodeGen/X86/2007-05-05-VecCastExpand.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36787 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-05 19:39:05 +00:00
Duncan Sands	3b346368de	A bitcast of a global variable may have been constant folded to a GEP - handle this case too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36745 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-04 17:12:26 +00:00
Evan Cheng	a7d4a04d24	Don't create indexed load / store with zero offset! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36716 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-03 23:52:19 +00:00
Chris Lattner	75c7d2bd55	Allow i/s to match (gv+c). This fixes CodeGen/PowerPC/2007-05-03-InlineAsm-S-Constraint.ll and PR1382 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36672 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-03 16:54:34 +00:00
Devang Patel	1997473cf7	Drop 'const' git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-03 01:11:54 +00:00
Anton Korobeynikov	6ad8256d76	Properly set arguments bitwidth of EHSELECT node git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36654 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-02 22:15:48 +00:00
Devang Patel	3e15bf33e0	Use 'static const char' instead of 'static const int'. Due to darwin gcc bug, one version of darwin linker coalesces static const int, which defauts PassID based pass identification. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-02 21:39:20 +00:00
Devang Patel	794fd75c67	Do not use typeinfo to identify pass in pass manager. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-01 21:15:47 +00:00
Evan Cheng	498f55989a	Forgot about chain result; also UNDEF cannot have multiple values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36622 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-01 08:53:39 +00:00
Evan Cheng	45a7ca9b23	* Only turn a load to UNDEF if all of its outputs have no uses (indexed loads produce two results.) * Do not touch volatile loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36604 91177308-0d34-0410-b5e6-96231b3b80d8	2007-05-01 00:38:21 +00:00
Chris Lattner	e7cf56aeee	Continue refactoring inline asm code. If there is an earlyclobber output register, preallocate all input registers and the early clobbered output. This fixes PR1357 and CodeGen/PowerPC/2007-04-30-InlineAsmEarlyClobber.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36599 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-30 21:11:17 +00:00
Chris Lattner	bf996f1d5e	refactor GetRegistersForValue to take OpInfo as an argument instead of various pieces of it. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36592 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-30 17:29:31 +00:00
Chris Lattner	3ff90dc1c8	refactor some code, no functionality change git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36590 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-30 17:16:27 +00:00
Chris Lattner	6995cf6015	generalize aggregate handling git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36568 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-29 18:58:03 +00:00
Chris Lattner	09e4b7e1b7	memory operands that have a direct operand should have their stores created before the copies into physregs are done. This avoids having flag operands skip the store, causing cycles in the dag at sched time. This fixes infinite loops on these tests: test/CodeGen/Generic/2007-04-08-MultipleFrameIndices.ll for PR1308 test/CodeGen/PowerPC/2007-01-29-lbrx-asm.ll test/CodeGen/PowerPC/2007-01-31-InlineAsmAddrMode.ll test/CodeGen/X86/2006-07-12-InlineAsmQConstraint.ll for PR828 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36547 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 21:12:06 +00:00
Chris Lattner	c83994e5d4	eliminate more redundant constraint type analysis git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36546 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 21:03:16 +00:00
Chris Lattner	2a600be226	merge constraint type analysis stuff together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36545 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 21:01:43 +00:00
Chris Lattner	0c58340aea	Significant refactoring of the inline asm stuff, to support future changes. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36544 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 20:49:53 +00:00
Chris Lattner	44b2c5098f	memory inputs to an inline asm are required to have an address available. If the operand is not already an indirect operand, spill it to a constant pool entry or a stack slot. This fixes PR1356 and CodeGen/X86/2007-04-27-InlineAsm-IntMemInput.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36536 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 06:42:38 +00:00
Chris Lattner	f2f3cd5129	Fix CodeGen/Generic/2007-04-27-LargeMemObject.ll and CodeGen/Generic/2007-04-27-InlineAsm-X-Dest.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36534 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 06:08:13 +00:00
Chris Lattner	b017318122	Fix this to match change to InlineAsm class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36524 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-28 04:05:59 +00:00
Chris Lattner	eb7f34f2cb	Fix incorrect legalization of EHSELECTOR. This fixes CodeGen/Generic/2007-04-14-EHSelectorCrash.ll and PR1326 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36510 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-27 17:12:52 +00:00
Evan Cheng	4c6cfad85e	Expand UINT_TO_FP in turns of SINT_TO_FP when UINTTOFP_* libcalls are not available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36501 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-27 07:33:31 +00:00
Chris Lattner	99f9a77c49	improve EH global handling, patch by Duncan Sands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36499 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-27 01:20:11 +00:00
Chris Lattner	64c0f84c72	enable Anton's shift/and switch lowering stuff! It now passes ppc bootstrap successfully! woohoo... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36496 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-26 21:09:43 +00:00
Anton Korobeynikov	ab8fd40403	Fixx off-by-one bug, which prevents llvm-gcc bootstrap on ppc32 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36490 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-26 20:44:04 +00:00
Dan Gohman	edc1d15984	Fix a typo in a comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36485 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-26 19:40:56 +00:00
Evan Cheng	c1a3520580	This was lefted out. Fixed sumarray-dbl. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36445 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-25 18:33:21 +00:00
Chris Lattner	6266c18ea1	allow support for 64-bit stack objects git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36420 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-25 04:08:28 +00:00
Chris Lattner	964dd86054	Be more careful about folding op(x, undef) when we have vector operands. This fixes CodeGen/X86/2007-04-24-VectorCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36413 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-25 00:00:45 +00:00
Bill Wendling	95b3955034	Assertion when using a 1-element vector for an add operation. Get the real vector type in this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36402 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-24 21:13:23 +00:00
Scott Michel	f147a8d56e	Use '-1U' where '-1UL' is obvious overkill, eliminating gcc warnings about tests always being true in the process. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36387 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-24 01:24:20 +00:00
Christopher Lamb	95c218a83e	PR400 phase 2. Propagate attributed load/store information through DAGs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36356 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-22 23:15:30 +00:00
Lauro Ramos Venancio	2c5c111b6c	X86 TLS: Implement review feedback. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36318 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-21 20:56:26 +00:00
Reid Spencer	c67bdc288a	Revert Christopher Lamb's load/store alignment changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36309 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-21 18:36:27 +00:00
Christopher Lamb	2330e4d4c4	add support for alignment attributes on load/store instructions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36301 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-21 08:16:25 +00:00
Lauro Ramos Venancio	0d3b67809c	Allow the lowering of ISD::GLOBAL_OFFSET_TABLE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36290 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-20 23:02:39 +00:00
Lauro Ramos Venancio	b3a0417cad	Implement "general dynamic", "initial exec" and "local exec" TLS models for X86 32 bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36283 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-20 21:38:10 +00:00
Chris Lattner	61a4c072b9	allow SRL to simplify its operands, as it doesn't demand all bits as input. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36245 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-18 03:06:49 +00:00
Chris Lattner	ec06e9a670	When replacing a node in SimplifyDemandedBits, if the old node used any single-use nodes, they will be dead soon. Make sure to remove them before processing other nodes. This implements CodeGen/X86/shl_elim.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36244 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-18 03:05:22 +00:00
Chris Lattner	0a16a1f738	fix a pasto git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36242 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-18 03:01:40 +00:00
Chris Lattner	8c7d2d56bf	Fix a bug in my previous patch, grabbing the shift amount width from the wrong operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36223 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-17 22:53:02 +00:00
Chris Lattner	895c4ab564	Fold (x << c1)>> c2 into a single shift if the bits shifted out aren't used. This compiles: int baz(long long a) { return (short)(((int)(a >>24)) >> 9); } into: _baz: srwi r2, r3, 1 extsh r3, r2 blr on PPC, instead of: _baz: slwi r2, r3, 8 srwi r2, r2, 9 extsh r3, r2 blr GCC produces: _baz: srwi r10,r4,24 insrwi r10,r3,24,0 srawi r9,r3,24 srawi r3,r10,9 extsh r3,r3 blr This implements CodeGen/PowerPC/shl_elim.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36221 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-17 21:14:16 +00:00
Chris Lattner	95a5e0507e	SIGN_EXTEND_INREG does not demand its top bits. Give SimplifyDemandedBits a chance to hack on it. This compiles: int baz(long long a) { return (short)(((int)(a >>24)) >> 9); } into: _baz: slwi r2, r3, 8 srwi r2, r2, 9 extsh r3, r2 blr instead of: _baz: srwi r2, r4, 24 rlwimi r2, r3, 8, 0, 23 srwi r2, r2, 9 extsh r3, r2 blr This implements CodeGen/PowerPC/sign_ext_inreg1.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36212 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-17 19:03:21 +00:00
Anton Korobeynikov	bed2946a96	Removed tabs everywhere except autogenerated & external files. Add make target for tabs checking. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-16 18:10:23 +00:00
Chris Lattner	1c35968d4d	disable switch lowering using shift/and. It still breaks ppc bootstrap for some reason. :( Will investigate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36011 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-14 19:39:41 +00:00
Anton Korobeynikov	e01017bba4	Fix PR1325: Case range optimization was performed in the case it shouldn't. Also fix some "latent" bug on 64-bit platforms git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35990 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-14 13:25:55 +00:00
Chris Lattner	3ff981749b	disable shift/and lowering to work around PR1325 for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35985 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-14 02:26:56 +00:00
Anton Korobeynikov	8085bcfdca	Fix PR1323 : we haven't updated phi nodes in good manner :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35963 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-13 06:53:51 +00:00
Chris Lattner	3a508c94a6	the result of an inline asm copy can be an arbitrary VT that the register class supports. In the case of vectors, this means we often get the wrong type (e.g. we get v4f32 instead of v8i16). Make sure to convert the vector result to the right type. This fixes CodeGen/X86/2007-04-11-InlineAsmVectorResult.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35944 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-12 06:00:20 +00:00
Chris Lattner	4829b1c6ab	fold noop vbitconvert instructions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35943 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-12 05:58:43 +00:00
Chris Lattner	c2941779c3	Fix weirdness handling single element vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35941 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-12 04:44:28 +00:00
Reid Spencer	f75b874957	For PR1284: Implement the "part_set" intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35938 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-12 02:48:46 +00:00
Chris Lattner	c24bbaddf8	fix an infinite loop compiling ldecod, notice by JeffC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35910 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 16:51:53 +00:00
Chris Lattner	1eba01e9a0	Fix this harder. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35888 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 06:50:51 +00:00
Chris Lattner	c56a81dff1	don't create shifts by zero, fix some problems with my previous patch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35887 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 06:43:25 +00:00
Chris Lattner	20a35c3fa5	Teach the codegen to turn [aez]ext (setcc) -> selectcc of 1/0, which often allows other simplifications. For example, this compiles: int isnegative(unsigned int X) { return !(X < 2147483648U); } Into this code: x86: movl 4(%esp), %eax shrl $31, %eax ret arm: mov r0, r0, lsr #31 bx lr thumb: lsr r0, r0, #31 bx lr instead of: x86: cmpl $0, 4(%esp) sets %al movzbl %al, %eax ret arm: mov r3, #0 cmp r0, #0 movlt r3, #1 mov r0, r3 bx lr thumb: mov r2, #1 mov r1, #0 cmp r0, #0 blt LBB1_2 @entry LBB1_1: @entry cpy r2, r1 LBB1_2: @entry cpy r0, r2 bx lr Testcase here: test/CodeGen/Generic/ispositive.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35883 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 05:32:27 +00:00
Chris Lattner	1982ef20c4	Codegen integer abs more efficiently using the trick from the PPC CWG. This improves codegen on many architectures. Tests committed as CodeGen/*/iabs.ll X86 Old: X86 New: _test: _test: movl 4(%esp), %ecx movl 4(%esp), %eax movl %ecx, %eax movl %eax, %ecx negl %eax sarl $31, %ecx testl %ecx, %ecx addl %ecx, %eax cmovns %ecx, %eax xorl %ecx, %eax ret ret PPC Old: PPC New: _test: _test: cmpwi cr0, r3, -1 srawi r2, r3, 31 neg r2, r3 add r3, r3, r2 bgt cr0, LBB1_2 ; xor r3, r3, r2 LBB1_1: ; blr mr r3, r2 LBB1_2: ; blr ARM Old: ARM New: _test: _test: rsb r3, r0, #0 add r3, r0, r0, asr #31 cmp r0, #0 eor r0, r3, r0, asr #31 movge r3, r0 bx lr mov r0, r3 bx lr Thumb Old: Thumb New: _test: _test: neg r2, r0 asr r2, r0, #31 cmp r0, #0 add r0, r0, r2 bge LBB1_2 eor r0, r2 LBB1_1: @ bx lr cpy r0, r2 LBB1_2: @ bx lr Sparc Old: Sparc New: test: test: save -96, %o6, %o6 save -96, %o6, %o6 sethi 0, %l0 sra %i0, 31, %l0 sub %l0, %i0, %l0 add %i0, %l0, %l1 subcc %i0, -1, %l1 xor %l1, %l0, %i0 bg .BB1_2 restore %g0, %g0, %g0 nop retl .BB1_1: nop or %g0, %l0, %i0 .BB1_2: restore %g0, %g0, %g0 retl nop It also helps alpha/ia64 :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35881 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 05:11:38 +00:00
Reid Spencer	18da072088	For PR1146: Put the parameter attributes in their own ParamAttr name space. Adjust the rest of llvm as a result. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35877 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-11 02:44:20 +00:00
Chris Lattner	c6eb6d7255	apparently some people commit without building the tree, or they forget to commit a LOT of files. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35858 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-10 03:20:39 +00:00
Jeff Cohen	2da8da46ba	No longer needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35850 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 23:42:32 +00:00
Chris Lattner	2b95fd67da	remove dead target hooks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35847 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 23:34:08 +00:00
Chris Lattner	b445d0cbb9	remove some dead target hooks, subsumed by isLegalAddressingMode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35840 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 22:27:04 +00:00
Anton Korobeynikov	54e2b142be	Use integer log for metric calculation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35834 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 21:57:03 +00:00
Jeff Cohen	efc3662636	Unbreak VC++ build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35817 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 14:32:59 +00:00
Anton Korobeynikov	4198c58c71	Next stage into switch lowering refactoring 1. Fix some bugs in the jump table lowering threshold 2. Implement much better metric for optimal pivot selection 3. Tune thresholds for different lowering methods 4. Implement shift-and trick for lowering small (<machine word length) cases with few destinations. Good testcase will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35816 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 12:31:58 +00:00
Reid Spencer	5694b6e90e	For PR1146: Adapt handling of parameter attributes to use the new ParamAttrsList class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35814 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 06:17:21 +00:00
Chris Lattner	1a6acc214d	implement CodeGen/X86/inline-asm-x-scalar.ll:test3 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35802 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 05:31:20 +00:00
Chris Lattner	ff33cc4d08	add some assertions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35800 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 05:23:13 +00:00
Chris Lattner	4b993b19f9	Fix PR1316 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35783 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-09 00:33:58 +00:00
Chris Lattner	921169b103	Fix for CodeGen/X86/2007-04-08-InlineAsmCrash.ll and PR1314 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35779 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-08 22:23:26 +00:00
Chris Lattner	e303ac9052	minor comment fix git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35696 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-06 17:47:14 +00:00
Reid Spencer	3f108cb555	Change the bit_part_select (non)implementation from "return 0" to abort. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35679 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-05 01:20:18 +00:00
Reid Spencer	addd11d98e	Implement the llvm.bit.part_select.iN.iN.iN overloaded intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35678 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-04 23:48:25 +00:00
Anton Korobeynikov	5502bf67cd	Properly emit range comparisons for switch cases, where neighbour cases go to the same destination. Now we're producing really good code for switch-lower-feature.ll testcase git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35672 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-04 21:14:49 +00:00
Scott Michel	c9dc114578	1. Insert custom lowering hooks for ISD::ROTR and ISD::ROTL. 2. Help DAGCombiner recognize zero/sign/any-extended versions of ROTR and ROTL patterns. This was motivated by the X86/rotate.ll testcase, which should now generate code for other platforms (and soon-to-come platforms.) Rewrote code slightly to make it easier to read. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35605 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-02 21:36:32 +00:00
Reid Spencer	a4f9c4d29a	For PR1297: Adjust for changes in the bit counting intrinsics. They all return i32 now so we have to trunc/zext the DAG node accordingly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35546 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-01 07:34:11 +00:00
Reid Spencer	577cc32d9a	For PR1297: Change getOperationName to return std::string instead of const char* git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35545 91177308-0d34-0410-b5e6-96231b3b80d8	2007-04-01 07:32:19 +00:00
Chris Lattner	c8d288f8fa	move a bunch of code out of the sdisel pass into its own opt pass "codegenprepare". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35529 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-31 04:18:03 +00:00
Chris Lattner	d2f340b746	switch TL::getValueType to use MVT::getValueType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35527 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-31 04:05:24 +00:00
Chris Lattner	1436bb657d	add one addressing mode description hook to rule them all. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35520 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-30 23:14:50 +00:00
Dale Johannesen	2041a0ef75	Fix incorrect combination of different loads. Reenable zext-over-truncate combination. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35517 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-30 21:38:07 +00:00
Evan Cheng	b0b6c76ffe	Disable load width reduction xform of variant (zext (truncate load x)) for big endian targets until llvm-gcc build issue has been resolved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35449 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-29 07:56:46 +00:00
Evan Cheng	7aff11a1ed	Scale 1 is always ok. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35407 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-28 01:55:52 +00:00
Evan Cheng	caaf69107e	Remove isLegalAddressImmediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35406 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-28 01:53:55 +00:00
Evan Cheng	baeccc8741	GEP index sinking fixes: 1) Take address scale into consideration. e.g. i32* -> scale 4. 2) Examine all the users of GEP. 3) Generalize to inter-block GEP's (no longer uses loopinfo). 4) Don't do xform if GEP has other variable index(es). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35403 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-28 01:49:39 +00:00
Anton Korobeynikov	dd43321079	Remove dead code git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35380 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-27 12:05:48 +00:00
Anton Korobeynikov	b17b08d1f2	Split big monster into small helpers. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35379 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-27 11:29:11 +00:00
Evan Cheng	d0083bc5ec	SDISel does not preserve all, it changes CFG and other info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35376 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-27 00:53:36 +00:00
Evan Cheng	15213b77cf	SIGN_EXTEND_INREG requires one extra operand, a ValueType node. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35350 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-26 07:12:51 +00:00
Anton Korobeynikov	3a84b9baf6	First step of switch lowering refactoring: perform worklist-driven strategy, emit JT's where possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35338 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-25 15:07:15 +00:00
Chris Lattner	5df99b376f	Implement support for vector operands to inline asm, implementing CodeGen/X86/2007-03-24-InlineAsmVectorOp.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35332 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-25 05:00:54 +00:00
Chris Lattner	c13dd1cf4c	implement initial support for the silly X constraint. Testcase here: CodeGen/X86/2007-03-24-InlineAsmXConstraint.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35327 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-25 04:35:41 +00:00
Chris Lattner	065421f99f	Implement CodeGen/X86/2007-03-24-InlineAsmMultiRegConstraint.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35324 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-25 02:18:14 +00:00
Chris Lattner	4234f57fa0	switch TargetLowering::getConstraintType to take the entire constraint, not just the first letter. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35322 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-25 02:14:49 +00:00
Chris Lattner	82dcb4fe23	don't rely on ADL git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35299 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-24 17:37:03 +00:00
Evan Cheng	dae54ce7fc	Adjust offset to compensate for big endian machines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35293 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-24 00:02:43 +00:00
Evan Cheng	e177e307fc	Make sure SEXTLOAD of the specific type is supported on the target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35289 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-23 22:13:36 +00:00
Evan Cheng	b37b80ce46	Also replace uses of SRL if that's also folded during ReduceLoadWidth(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35286 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-23 20:55:21 +00:00
Evan Cheng	0b063def98	A couple of bug fixes for reducing load width xform: 1. Address offset is in bytes. 2. Make sure truncate node uses are replaced with new load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35274 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-23 02:16:52 +00:00
Dan Gohman	ecb7a77885	Change uses of Function::front to Function::getEntryBlock for readability. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35265 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-22 16:38:57 +00:00
Evan Cheng	c88138fb5e	More opportunities to reduce load size. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35254 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-22 01:54:19 +00:00
Dale Johannesen	fa4bce2b76	repair x86 performance, dejagnu problems from previous change git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35245 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-21 21:51:52 +00:00
Evan Cheng	007b69eeaa	fold (truncate (srl (load x), c)) -> (smaller load (x+c/vt bits)) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35239 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-21 20:14:05 +00:00
Dale Johannesen	8e59e163db	do not share old induction variables when this would result in invalid instructions (that would have to be split later) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35227 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-20 21:54:54 +00:00
Jeff Cohen	c01a53007a	Fix some VC++ warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35224 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-20 20:43:18 +00:00
Lauro Ramos Venancio	a0a26b7454	Code clean up. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35220 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-20 20:09:03 +00:00
Evan Cheng	29a68fb5b7	Minor bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35219 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-20 19:32:11 +00:00
Lauro Ramos Venancio	8334b9fa3b	CopyToReg source operand can be a physical register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35213 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-20 16:46:44 +00:00
Evan Cheng	db264ae07f	Use SmallSet instead of std::set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35133 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-17 08:53:30 +00:00
Evan Cheng	2edd563825	If sdisel has decided to sink GEP index expression into any BB. Replace all uses in that BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35132 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-17 08:22:49 +00:00
Evan Cheng	9e2d86add8	Turn on GEP index sinking by default. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35127 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-16 18:32:30 +00:00
Evan Cheng	9f5ead9601	Stupid bug. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35126 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-16 17:50:20 +00:00
Evan Cheng	3cd4e5095b	Sink a binary expression into its use blocks if it is a loop invariant computation used as GEP indexes and if the expression can be folded into target addressing mode of GEP load / store use types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35123 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-16 08:46:27 +00:00
Evan Cheng	14245a9d62	Added isLegalAddressExpression hook to test if the given expression can be folded into target addressing mode for the given type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35121 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-16 08:42:32 +00:00
Evan Cheng	c6deb3d447	Estimate a cost using the possible number of scratch registers required and use it as a late BURR scheduling tie-breaker. Intuitively, it's good to push down instructions whose results are liveout so their long live ranges won't conflict with other values which are needed inside the BB. Further prioritize liveout instructions by the number of operands which are calculated within the BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35109 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-14 22:43:40 +00:00
Evan Cheng	61230d18d2	Try schedule def + use closer whne Sethi-Ullman numbers are the same. e.g. t1 = op t2, c1 t3 = op t4, c2 and the following instructions are both ready. t2 = op c3 t4 = op c4 Then schedule t2 = op first. i.e. t4 = op c4 t2 = op c3 t1 = op t2, c1 t3 = op t4, c2 This creates more short live intervals which work better with the register allocator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35089 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-13 23:25:11 +00:00
Evan Cheng	c289faf015	More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35076 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-12 23:37:10 +00:00
Chris Lattner	6dfc6806bf	implement support for floating point constants used as inline asm memory operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35033 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-08 22:29:47 +00:00
Chris Lattner	b4ddac9bf7	make this fail even in non-assert builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35025 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-08 07:07:03 +00:00
Anton Korobeynikov	d0b82b301d	Refactoring of formal parameter flags. Enable properly use of zext/sext/aext stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35008 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-07 16:25:09 +00:00
Evan Cheng	83060c544b	Avoid combining indexed load further. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35005 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-07 08:07:03 +00:00
Chris Lattner	edf2e8da25	big endian 32-bit systems (e.g. ppc32) want to return the high reg first, not the lo-reg first. This is fallout from my ppc calling conv change yesterday, it fixes test/ExecutionEngine/2003-05-06-LivenessClobber.llx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34983 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-06 20:01:06 +00:00
Anton Korobeynikov	0db79d86de	Enumerate SDISel formal parameter attributes. Make use of new enumeration. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34960 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-06 06:10:33 +00:00
Jeff Cohen	ca5183d445	Unbreak VC++ build. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-05 00:00:42 +00:00
Chris Lattner	b654176cb4	fold away addc nodes when we know there cannot be a carry-out. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34913 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-04 20:40:38 +00:00
Chris Lattner	bcf2484450	generalize git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34910 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-04 20:08:45 +00:00
Chris Lattner	91153686f0	canonicalize constants to the RHS of addc/adde. If nothing uses the carry out of addc, turn it into add. This allows us to compile: long long test(long long A, unsigned B) { return (A + ((long long)B << 32)) & 123; } into: _test: movl $123, %eax andl 4(%esp), %eax xorl %edx, %edx ret instead of: _test: xorl %edx, %edx movl %edx, %eax addl 4(%esp), %eax ;; add of zero andl $123, %eax ret git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34909 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-04 20:03:15 +00:00
Chris Lattner	175415e116	eliminate some ops if they have an undef RHS git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34908 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-04 20:01:46 +00:00
Chris Lattner	8b2d42c949	Fix CodeGen/Generic/fpowi-promote.ll and PR1239 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34893 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-03 23:43:21 +00:00
Chris Lattner	a9569f10de	Add an expand action for ISD label which just deletes the label. This "fixes" PR1238. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34890 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-03 19:21:38 +00:00
Jim Laskey	0b4711bd94	Lower eh filter intrinsic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34802 91177308-0d34-0410-b5e6-96231b3b80d8	2007-03-01 20:24:30 +00:00
Jim Laskey	8782d481a3	Chain is on second operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34759 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-28 20:43:58 +00:00
Jim Laskey	64ce0ca90d	MERGE_VALUES unnecessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34750 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-28 18:37:04 +00:00
Chris Lattner	66baf26fe0	add methods for analysis of call results and return nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34738 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-28 07:09:40 +00:00
Chris Lattner	fb39f99fa4	add methods to analyze calls and formals. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34736 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-28 06:56:37 +00:00
Chris Lattner	13513b7a50	Minor refactoring of CC Lowering interfaces git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34656 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-27 05:13:54 +00:00
Chris Lattner	362e98a5f5	move CC Lowering stuff to its own public interface git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34655 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-27 04:43:02 +00:00
Chris Lattner	2255887574	Fold (sext (truncate x)) more aggressively, by avoiding creation of a sextinreg if not needed. This is useful in two cases: before legalize, it avoids creating a sextinreg that will be trivially removed. After legalize if the target doesn't support sextinreg, the trunc/sext would not have been removed before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34621 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-26 03:13:59 +00:00
Chris Lattner	ddf53e45b2	track signedness of formal argument, though we have a fixme here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34620 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-26 02:56:58 +00:00
Jim Laskey	183f47fb1a	Fix for PR1224. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34610 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-25 21:43:59 +00:00
Chris Lattner	251db1890c	optimize duplicate ValueMap lookups git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34599 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-25 18:40:32 +00:00
Chris Lattner	753d9cb50e	fold trivial token factor nodes. This allows us to compile test/CodeGen/X86/fp-stack-ret.ll into: movl 4(%esp), %eax fldl (%eax) ret instead of: subl $12, %esp movl 16(%esp), %eax movsd (%eax), %xmm0 movsd %xmm0, (%esp) fldl (%esp) addl $12, %esp ret by eliminating a token factor that blocked a check. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34584 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-25 08:24:27 +00:00
Chris Lattner	6618039f9f	initialize a instance variable git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34567 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-25 01:28:05 +00:00
Jim Laskey	7a1de987a6	Deal with cases when MMI is not requested. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34556 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-24 09:45:44 +00:00
Jim Laskey	e80873ee75	Drop unused operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34555 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-24 09:44:17 +00:00
Chris Lattner	01ca65b23e	Fix CodeGen/Generic/2007-02-23-DAGCombine-Miscompile.ll and PR1219 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34551 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-24 02:09:29 +00:00
Jim Laskey	1da20a71d1	Handle improper cast. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34535 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-23 21:45:01 +00:00
Jim Laskey	9bb3c93af2	Need to init. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34499 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-22 18:04:49 +00:00
Jim Laskey	cbfdb7b871	Tighten up error checking of args. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34493 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-22 16:10:05 +00:00
Jim Laskey	735b6f8cc3	Handle lowering invoke to call correctly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34492 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-22 15:38:06 +00:00
Jim Laskey	2bc210d99f	Simplify lowering and selection of exception ops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34491 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-22 15:37:19 +00:00
Jim Laskey	b180aa1753	Selection and lowering for exception handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34481 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-21 22:53:45 +00:00
Chris Lattner	95ad943ed5	print target nodes nicely git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34369 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-17 06:38:37 +00:00
Chris Lattner	9ff6ee85fe	Implement i/n/s constraints correctly. This fixes test/CodeGen/PowerPC/2007-02-16-InlineAsmNConstraint.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34368 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-17 06:00:35 +00:00
Chris Lattner	5d4a9f7731	fix indentation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34307 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-15 18:19:15 +00:00
Chris Lattner	0152829e89	Apply B Scott Michel's patch for PR1184, which improves diagnostics in an abort case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34306 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-15 18:17:56 +00:00
Reid Spencer	ac9dcb94dd	For PR1195: Change use of "packed" term to "vector" in comments, strings, variable names, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34300 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-15 03:39:18 +00:00
Reid Spencer	9d6565a5b1	For PR1195: Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and PackedTyID -> VectorTyID. No functional changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34293 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-15 02:26:10 +00:00
Chris Lattner	c661d61d82	fix a warning git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34272 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-14 07:34:56 +00:00
Chris Lattner	21840b1c5c	Refix CodeGen/Generic/switch-lower.ll. In contrast to my previous patch, this doesn't miscompile lots of programs :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34268 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-14 07:18:16 +00:00
Chris Lattner	d2b7cec527	Generalize TargetData strings, to support more interesting forms of data. Patch by Scott Michel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34266 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-14 05:52:17 +00:00
Chris Lattner	4c948eb373	implement expand of truncate. This allows truncates from i128 to i64 to be supported on 32-bit hosts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34257 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 23:55:16 +00:00
Chris Lattner	f839ce7d03	Fix PR1198, by adding initial i128 support. Patch by Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34256 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 23:41:38 +00:00
Chris Lattner	ae4f99d843	revert my previous switch lowering change, which miscompiles a few programs. This will break a dj test until I have time to investigate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34247 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 20:09:07 +00:00
Lauro Ramos Venancio	cf8270a994	Add a space between // and the comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34244 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 18:10:13 +00:00
Lauro Ramos Venancio	7aa47b69ca	Add "original alignment" to function arguments flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34240 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 13:50:08 +00:00
Chris Lattner	818d42f1e8	Fix switch lowering to order cases in zext order, which is how we emit the comparisons. This fixes an infinite loop on CodeGen/Generic/switch-lower.ll and PR1197 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34216 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-13 01:05:56 +00:00
Chris Lattner	b1919e2f08	Privatize StructLayout::MemberOffsets, adding an accessor git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34156 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-10 19:55:17 +00:00
Evan Cheng	ad2070c667	Add function live-ins to entry block live-in set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34112 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-10 02:43:39 +00:00
Evan Cheng	15699fc5ed	Rename some variables to avoid confusion with SelectionDAGISel::BB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34110 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-10 01:08:18 +00:00
Evan Cheng	2e67781ef5	Make use of TLI.SimplifySetCC() in LegalizeSetCCOperands(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34066 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-08 22:16:19 +00:00
Evan Cheng	fa1eb27b76	Move SimplifySetCC to TargetLowering and allow it to be shared with legalizer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34065 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-08 22:13:59 +00:00
Chris Lattner	831e0374a7	switch the VRBaseMap in the scheduler from an std::map to a DenseMap. This speeds up the isel pass from 2.5570s to 2.4722s on kc++ (3.4%). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33879 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 08:47:20 +00:00
Chris Lattner	3f97eb449b	Introduce new UnarySDNode/BinarySDNode/TernarySDNode nodes, which coallocate their operands with the node itself. This reduces malloc traffic for operand lists. This reduces isel time on kc++ from 2.6164 to 2.5570s, about 2.3%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33878 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 08:35:21 +00:00
Chris Lattner	ab4ed59538	eliminate the SDNode::setValueTypes method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33876 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 07:37:24 +00:00
Chris Lattner	63e3f14df6	eliminate a bunch of duplicate ctors and helper functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33875 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 07:28:00 +00:00
Chris Lattner	d429bcd4ac	move MorphNode to out of line and merge setNodeOperands into it. There is no behavior or performance change here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33869 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 02:49:29 +00:00
Chris Lattner	48b8592652	simplify MorphNodeTo to take a VTList operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33868 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 02:41:42 +00:00
Chris Lattner	67612a1188	eliminate some extraneous methods in SDNode git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33867 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 02:32:44 +00:00
Chris Lattner	c76e3c8602	Give each selectiondag node class a home for it's vtable and rtti info git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33866 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 02:23:32 +00:00
Chris Lattner	9f24ad79ce	Switch VAlueMap from std::map to DenseMap. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33863 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 01:35:11 +00:00
Chris Lattner	0da331fe0b	Switch NodeMap from std::map to DenseMap, this speeds up isel by 2.3% git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33862 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 01:31:47 +00:00
Chris Lattner	0ed4417075	swtich vector-> smallvector, speeding up selectiondag stuff 1% git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33861 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 01:20:02 +00:00
Chris Lattner	40030bfa75	Switch promoted/expanded ops over to using a DenseMap. Vector related maps aren't worth it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33860 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 01:17:38 +00:00
Chris Lattner	718071c476	switch LegalizedNodes from std::map to a DenseMap. This speeds up isel time as a whole on kc++ by 11%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33857 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 00:50:02 +00:00
Chris Lattner	00755df36c	Eliminate some malloc traffic from LegalizeAllNodesNotLeadingTo, speeding up isel on kimwitu by 0.7%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33853 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 00:27:56 +00:00
Chris Lattner	d48c5e871a	Eliminate some std::sets. This speeds up isel of kimwitu by about 0.9% git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33852 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 00:24:41 +00:00
Chris Lattner	cf5640bd52	Switch SelectionDAG::ReplaceAllUsesOfValueWith to use a SmallSetVector for the users set (most nodes have 1 or 2 users). This speeds up the isel pass 3.2% on kimwitu. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33849 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-04 00:14:31 +00:00
Chris Lattner	2ba528b3a7	switch the sched unit map over to use a DenseMap instead of std::map. This speeds up isel as a whole time by 2.6%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33810 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-03 01:34:13 +00:00
Chris Lattner	7971514755	Switch ComputeTopDownOrdering over to using a densemap. This speeds up isel as a whole by 3.3%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33809 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-03 01:12:36 +00:00
Evan Cheng	5efdecc030	Pasto git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33806 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-03 00:43:46 +00:00
Reid Spencer	832254e1c2	Changes to support making the shift instructions be true BinaryOperators. This feature is needed in order to support shifts of more than 255 bits on large integer types. This changes the syntax for llvm assembly to make shl, ashr and lshr instructions look like a binary operator: shl i32 %X, 1 instead of shl i32 %X, i8 1 Additionally, this should help a few passes perform additional optimizations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-02 02:16:23 +00:00
Anton Korobeynikov	b25fe82671	Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only affected part is codegen of "memove" inside x86 backend. This fixes PR1144 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33752 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-01 08:39:52 +00:00
Chris Lattner	fea997aac5	Fit in 80 columns git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33745 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-01 04:55:59 +00:00
Chris Lattner	527fae12c3	Emit a better assertion message for PR1133 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33736 91177308-0d34-0410-b5e6-96231b3b80d8	2007-02-01 01:21:12 +00:00
Evan Cheng	d385fd62cb	Allow the target to override the ISD::CondCode that's to be used to test the result of the comparison libcall against zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33701 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-31 09:29:11 +00:00
Reid Spencer	5cbf985dcb	For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid confusion with external linkage types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-30 20:08:39 +00:00
Chris Lattner	367f109ba9	add initial support for handling inline asms with multiple constraints. This doesn't do the "right thing" but will probably work in most cases. This implements CodeGen/PowerPC/2007-01-29-lbrx-asm.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33643 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-29 23:45:14 +00:00
Nate Begeman	bcc5f36765	Finish off bug 680, allowing targets to custom lower frame and return address nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33636 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-29 22:58:52 +00:00
Anton Korobeynikov	6aa279dc8b	Arguments are counting from 1. not from 0. Maybe we should change numbering somehow? E.g. make return argument the last? git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33606 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-28 18:01:49 +00:00
Anton Korobeynikov	ac2b2cf88c	More cleanup git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33605 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-28 16:04:40 +00:00
Anton Korobeynikov	b10308e440	Propagate changes from my local tree. This patch includes: 1. New parameter attribute called 'inreg'. It has meaning "place this parameter in registers, if possible". This is some generalization of gcc's regparm(n) attribute. It's currently used only in X86-32 backend. 2. Completely rewritten CC handling/lowering code inside X86 backend. Merged stdcall + c CCs and fastcall + fast CC. 3. Dropped CSRET CC. We cannot add struct return variant for each target-specific CC (e.g. stdcall + csretcc and so on). 4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in on first attribute has meaning 'This is hidden pointer to structure return. Handle it gently'. 5. Fixed small bug in llvm-extract + add new feature to FunctionExtraction pass, which relinks all internal-linkaged callees from deleted function to external linkage. This will allow further linking everything together. NOTEs: 1. Documentation will be updated soon. 2. llvm-upgrade should be improved to translate csret => sret. Before this, there will be some unexpected test fails. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33597 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-28 13:31:35 +00:00
Jim Laskey	44c3b9fdd4	Change the MachineDebugInfo to MachineModuleInfo to better reflect usage for debugging and exception handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33550 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-26 21:22:28 +00:00
Jim Laskey	1ee2925742	Make LABEL a builtin opcode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33537 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-26 14:34:52 +00:00
Evan Cheng	de268f7dcf	Renamed getTypeAlignmentShift() to getPreferredTypeAlignmentShift(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33482 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-24 07:03:39 +00:00
Evan Cheng	f6d039a039	Remove the DoubleTy special case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33449 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-22 23:13:55 +00:00
Reid Spencer	24d6da5fed	For PR970: Clean up handling of isFloatingPoint() and dealing with PackedType. Patch by Gordon Henriksen! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33415 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-21 00:29:26 +00:00
Chris Lattner	58092e35a3	Teach TargetData to handle 'preferred' alignment for each target, and use these alignment amounts to align scalars when we can. Patch by Scott Michel! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33409 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-20 22:35:55 +00:00
Evan Cheng	597a3bde35	Fix for PR1108: type of insert_vector_elt index operand is PtrVT, not MVT::i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33398 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-20 10:10:26 +00:00
Reid Spencer	c10305743c	For PR1043: This is the final patch for this PR. It implements some minor cleanup in the use of IntegerType, to wit: 1. Type::getIntegerTypeMask -> IntegerType::getBitMask 2. Type::IntTy changed to IntegerType from Type* 3. ConstantInt::getType() returns IntegerType* now, not Type* This also fixes PR1120. Patch by Sheng Zhou. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33370 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-19 21:13:56 +00:00
Evan Cheng	42d7ccfd8e	Remove this xform: (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2) Replace it with: (add (shl (add x, c1), c2), ) -> (add (add (shl x, c2), c1<<c2), ) This fixes test/CodeGen/ARM/smul.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33361 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-19 17:51:44 +00:00
Chris Lattner	c4e664bb9d	Fix PR1114 and CodeGen/Generic/2007-01-15-LoadSelectCycle.ll by being careful when folding "c ? load p : load q" that C doesn't reach either load. If so, folding this into load (c ? p : q) will induce a cycle in the graph. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33251 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-16 05:59:59 +00:00
Chris Lattner	938ab02256	add options to view the dags before the first or second pass of dag combine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33249 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-16 04:55:25 +00:00
Reid Spencer	e5530da208	Compensate for loss of DerivedTypes.h in TargetLowering.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33159 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-12 23:31:12 +00:00
Reid Spencer	02114aa0e5	Move a function out of line. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33158 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-12 23:30:31 +00:00
Evan Cheng	79cca507fe	Minor fix. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33149 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-12 22:51:10 +00:00
Evan Cheng	56966225d1	Store default libgcc routine names and allow them to be redefined by target. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33105 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-12 02:11:51 +00:00
Zhou Sheng	6b6b6ef167	For PR1043: Merge ConstantIntegral and ConstantBool into ConstantInt. Remove ConstantIntegral and ConstantBool from LLVM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33073 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-11 12:24:14 +00:00
Evan Cheng	c8edc64188	Naming consistency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33026 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-08 23:55:53 +00:00
Evan Cheng	c62d4bb695	Fix for PR1075: bottom-up register-reduction scheduling actually increases register pressure. - Fixed bugs in sethi-ullman number computation and priority queue comparison functions. - Separate code that handles priority computation special cases from SU number computation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33025 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-08 23:50:38 +00:00
Chris Lattner	ddae4bd683	Implement some trivial FP foldings when -enable-unsafe-fp-math is specified. This implements CodeGen/PowerPC/unsafe-math.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33024 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-08 23:04:05 +00:00
Chris Lattner	a4810b52d0	remove support for llvm.isunordered git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32992 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-07 08:37:22 +00:00
Evan Cheng	636c753b6b	Expand fcopysign to the bitwise sequence if select is marked as expensive. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32940 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-05 23:33:44 +00:00
Evan Cheng	068c5f47ea	Bug in ExpandFCOPYSIGNToBitwiseOps(). Clear the old sign bit of operand 0 before or'ing in the sign bit of operand 1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32930 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-05 21:31:51 +00:00

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