llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-09-12 21:56:41 +00:00

Author	SHA1	Message	Date
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
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
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	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	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
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	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	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	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
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	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
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
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
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
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
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
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
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	0d630d2204	GEP subscript is interpreted as a signed value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32888 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-05 01:46:20 +00:00
Chris Lattner	f8e7a21912	fix PowerPC/2007-01-04-ArgExtension.ll, a bug handling K&R prototypes with the recent signless changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32884 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-04 22:22:37 +00:00
Reid Spencer	bcca3405bd	Legalizer doesn't do an ANY_EXTEND if we don't ask for one so make sure that we default to an ANY_EXTEND if no parameter attribute is set on the result value of a function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32836 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-03 16:49:33 +00:00
Reid Spencer	376dd212f9	Restore previous behavior of defaulting to ZEXT. This works around two things: (1) preventing PR1071 and (2) working around missing parameter attributes for bool type. (2) will be fixed shortly. When PR1071 is fixed, this patch should be undone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32831 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-03 05:03:05 +00:00
Reid Spencer	8c57dfb1ae	Two changes: 1. Switch expression and cases are compared signed and are sign extended. 2. For function results needing extended, do SIGN_EXTEND if the SExtAttribute is set and ZERO_EXTEND if the ZExtAttribute is set, otherwise just let the Legalizer do ANY_EXTEND. This fixes the recent regression in kimwitu++ and probably the llvm-gcc bootstrap issue we had today. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32830 91177308-0d34-0410-b5e6-96231b3b80d8	2007-01-03 04:25:33 +00:00
Reid Spencer	47857812e2	For PR950: Three changes: 1. Convert signed integer types to signless versions. 2. Implement the @sext and @zext parameter attributes. Previously the type of an function parameter was used to determine whether it should be sign extended or zero extended before the call. This information is now communicated via the function type's parameter attributes. 3. The interface to LowerCallTo had to be changed in order to accommodate the parameter attribute information. Although it would have been convenient to pass in the FunctionType itself, there isn't always one present in the caller. Consequently, a signedness indication for the result type and for each parameter was provided for in the interface to this method. All implementations were changed to make the adjustment necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32788 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-31 05:55:36 +00:00
Reid Spencer	e4d87aa2de	For PR950: This patch removes the SetCC instructions and replaces them with the ICmp and FCmp instructions. The SetCondInst instruction has been removed and been replaced with ICmpInst and FCmpInst. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32751 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-23 06:05:41 +00:00
Evan Cheng	0b4f80ee89	getLoad() and getStore() calls missed SVOffset operand. Thanks to Dan Gohman for pointing it out! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32712 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-20 01:27:29 +00:00
Chris Lattner	36d439666c	Fix PR1049 and CodeGen/Generic/2006-12-16-InlineAsmCrash.ll by producing target constants instead of constants. Constants can get selected to li/movri instructions, which causes the scheduler to explode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32633 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-16 21:14:48 +00:00
Evan Cheng	9f87788040	More soft-fp work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32559 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-13 20:57:08 +00:00
Reid Spencer	7b06bd532d	Replace CastInst::createInferredCast calls with more accurate cast creation calls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32521 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-13 00:50:17 +00:00
Evan Cheng	0ca67332fa	Expand i32/i64 CopyToReg f32/f64 to BIT_CONVERT + CopyToReg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32493 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-12 21:21:32 +00:00
Evan Cheng	b15974a65c	Expand formal arguments and call arguments recursively: e.g. f64 -> i64 -> 2 x i32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32476 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-12 07:27:38 +00:00
Anton Korobeynikov	d27a258d2d	Cleaned setjmp/longjmp lowering interfaces. Now we're producing right code (both asm & cbe) for Mingw32 target. Removed autoconf checks for underscored versions of setjmp/longjmp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32415 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-10 23:12:42 +00:00
Evan Cheng	1a8f1fe676	Preliminary soft float support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32394 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-09 02:42:38 +00:00
Bill Wendling	832171cb97	Removing even more <iostream> includes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32320 91177308-0d34-0410-b5e6-96231b3b80d8	2006-12-07 20:04:42 +00:00
Evan Cheng	f3e486e069	Fix for PR1023 by Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32003 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-29 01:58:12 +00:00
Evan Cheng	a5a57d66f5	Fix for PR1022 (folding loads of static initializers) by Dan Gohman. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32000 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-29 01:38:07 +00:00
Chris Lattner	3f7927c84c	add a hook to allow targets to hack on inline asms to lower them to llvm when they want to. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31997 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-29 01:12:32 +00:00
Evan Cheng	c0f64ffab9	Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead of opcode and number of operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31947 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-27 23:37:22 +00:00
Reid Spencer	3da59db637	For PR950: The long awaited CAST patch. This introduces 12 new instructions into LLVM to replace the cast instruction. Corresponding changes throughout LLVM are provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the exception of 175.vpr which fails only on a slight floating point output difference. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31931 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-27 01:05:10 +00:00
Reid Spencer	45fb3f3cb2	For PR950: First in a series of patches to convert SetCondInst into ICmpInst and FCmpInst using only two opcodes and having the instructions contain their predicate value. Nothing uses these classes yet. More patches to follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31867 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-20 01:22:35 +00:00
Chris Lattner	43193d60e9	remove dead #include git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31753 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-15 17:51:15 +00:00
Chris Lattner	1e7aa5c209	commentate git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31627 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-10 04:41:34 +00:00
Reid Spencer	3822ff5c71	For PR950: This patch converts the old SHR instruction into two instructions, AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not dependent on the sign of their operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31542 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-08 06:47:33 +00:00
Reid Spencer	3ed469ccd7	For PR786: Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting fall out by removing unused variables. Remaining warnings have to do with unused functions (I didn't want to delete code without review) and unused variables in generated code. Maintainers should clean up the remaining issues when they see them. All changes pass DejaGnu tests and Olden. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31380 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-02 20:25:50 +00:00
Reid Spencer	0a783f783c	For PR950: Replace the REM instruction with UREM, SREM and FREM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31369 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-02 01:53:59 +00:00
Chris Lattner	2a821601f1	Allow the getRegForInlineAsmConstraint method to return a register class with no fixes physreg. Treat this as permission to use any register in the register class. When this happens and it is safe, allow the llvm register allcoator to allocate the register instead of doing it at isel time. This eliminates a ton of copies around common inline asms. For example: int test2(int Y, int X) { asm("foo %0, %1" : "=r"(X): "r"(X)); return X; } now compiles to: _test2: foo r3, r4 blr instead of: _test2: mr r2, r4 foo r2, r2 mr r3, r2 blr GCC produces: _test2: foo r4, r4 mr r3,r4 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31366 91177308-0d34-0410-b5e6-96231b3b80d8	2006-11-02 01:41:49 +00:00
Chris Lattner	0ccb500fa7	Compile CodeGen/PowerPC/fp-branch.ll to: _intcoord_cond_next55: LBB1_3: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 blt cr0, LBB1_2 ;cond_next62.exitStub LBB1_1: ;bb72.exitStub li r3, 1 blr LBB1_2: ;cond_next62.exitStub li r3, 0 blr instead of: _intcoord_cond_next55: LBB1_3: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 bge cr0, LBB1_1 ;bb72.exitStub LBB1_4: ;cond_next55 lis r2, ha16(LCPI1_0) lfs f0, lo16(LCPI1_0)(r2) fcmpu cr0, f1, f0 bnu cr0, LBB1_2 ;cond_next62.exitStub LBB1_1: ;bb72.exitStub li r3, 1 blr LBB1_2: ;cond_next62.exitStub li r3, 0 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31330 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-31 23:06:00 +00:00
Chris Lattner	df19f27d03	look through isunordered to inline it into branch blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31328 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-31 22:37:42 +00:00
Chris Lattner	53069fbbae	TargetLowering::isOperandValidForConstraint git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31319 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-31 19:41:18 +00:00
Chris Lattner	d03f1581c8	Turn an assert into an error message. This is commonly triggered when we don't support a specific constraint yet. When this happens, print the unsupported constraint. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31310 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-31 07:33:13 +00:00
Evan Cheng	3d4ce11085	Lower jumptable to BR_JT. The legalizer can lower it to a BRIND or let the target custom lower it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31293 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-30 08:00:44 +00:00
Chris Lattner	6a586c8d9a	fix Generic/2006-10-29-Crash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31281 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-29 21:01:20 +00:00
Chris Lattner	5a145f0094	Fix a load folding issue that Evan noticed: there is no need to export values used by comparisons in the main block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31279 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-29 18:23:37 +00:00
Chris Lattner	bad7f48c70	split critical edges more carefully and intelligently. In particular, critical edges whose destinations are not phi nodes don't bother us. Also, share split edges, since the split edge can't have a phi. This significantly reduces the complexity of generated code in some cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31274 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-28 19:22:10 +00:00
Chris Lattner	47e32e6b83	Split all critical edges before isel. This resolves issues with spill code being inserted on unsplit critical edges, which introduces (sometimes large amounts of) partially dead spill code. This also fixes PR925 + CodeGen/Generic/switch-crit-edge-constant.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31260 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-28 17:04:37 +00:00
Chris Lattner	8c494ab759	Fix a bug in merged condition handling (CodeGen/Generic/2006-10-27-CondFolding.ll). Add many fewer CFG edges and PHI node entries. If there is a switch which has the same block as multiple destinations, only add that block once as a successor/phi node (in the jumptable case) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31242 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-27 23:50:33 +00:00
Chris Lattner	1c9b2f312d	remove debug code git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31233 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-27 21:58:03 +00:00
Chris Lattner	d2f9ee9ea7	Codegen cond&cond with two branches. This compiles (f.e.) PowerPC/and-branch.ll to: cmpwi cr0, r4, 4 bgt cr0, LBB1_2 ;UnifiedReturnBlock LBB1_3: ;entry cmplwi cr0, r3, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock instead of: cmpwi cr7, r4, 4 mfcr r2 addic r4, r3, -1 subfe r3, r4, r3 rlwinm r2, r2, 30, 31, 31 or r2, r2, r3 cmplwi cr0, r2, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock LBB1_1: ;cond_true git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31232 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-27 21:54:23 +00:00
Chris Lattner	571e434a34	Turn conditions like x<Y\|z==q into multiple blocks. This compiles Regression/CodeGen/X86/or-branch.ll into: _foo: subl $12, %esp call L_bar$stub movl 20(%esp), %eax movl 16(%esp), %ecx cmpl $5, %eax jl LBB1_1 #cond_true LBB1_3: #entry testl %ecx, %ecx jne LBB1_2 #UnifiedReturnBlock LBB1_1: #cond_true call L_bar$stub addl $12, %esp ret LBB1_2: #UnifiedReturnBlock addl $12, %esp ret instead of: _foo: subl $12, %esp call L_bar$stub movl 20(%esp), %eax movl 16(%esp), %ecx cmpl $4, %eax setg %al testl %ecx, %ecx setne %cl testb %cl, %al jne LBB1_2 #UnifiedReturnBlock LBB1_1: #cond_true call L_bar$stub addl $12, %esp ret LBB1_2: #UnifiedReturnBlock addl $12, %esp ret And on ppc to: cmpwi cr0, r29, 5 blt cr0, LBB1_1 ;cond_true LBB1_3: ;entry cmplwi cr0, r30, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock instead of: cmpwi cr7, r4, 4 mfcr r2 addic r4, r3, -1 subfe r30, r4, r3 rlwinm r29, r2, 30, 31, 31 and r2, r29, r30 cmplwi cr0, r2, 0 bne cr0, LBB1_2 ;UnifiedReturnBlock git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31230 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-27 21:36:01 +00:00
Reid Spencer	1628cec4d7	For PR950: Make necessary changes to support DIV -> [SUF]Div. This changes llvm to have three division instructions: signed, unsigned, floating point. The bytecode and assembler are bacwards compatible, however. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31195 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-26 06:15:43 +00:00
Chris Lattner	2452595927	visitSwitchCase knows how to insert conditional branches well. Change visitBr to just call visitSwitchCase, eliminating duplicate logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31167 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-24 18:07:37 +00:00
Chris Lattner	57ab65972e	Generalize CaseBlock a bit more: Rename LHSBB/RHSBB to TrueBB/FalseBB. Allow the RHS value to be null, in which case the LHS is treated as a bool. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31166 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-24 17:57:59 +00:00
Chris Lattner	7b248d9866	generalize 'CaseBlock'. It really allows any comparison to be inserted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31161 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-24 17:03:35 +00:00
Chris Lattner	b354343af7	Minor tweak. Instead of generating: movl 32(%esp), %eax cmpl $1, %eax je LBB1_1 #bb LBB1_4: #entry cmpl $2, %eax je LBB1_2 #bb2 jmp LBB1_3 #UnifiedReturnBlock LBB1_1: #bb notice that we would miss the fall through and emit this instead: movl 32(%esp), %eax cmpl $2, %eax je LBB1_2 #bb2 LBB1_4: #entry cmpl $1, %eax jne LBB1_3 #UnifiedReturnBlock LBB1_1: #bb git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31130 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-23 18:38:22 +00:00
Chris Lattner	b2e806eecd	Fix phi node updating for switches lowered to linear sequences of branches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31125 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-22 23:00:53 +00:00
Chris Lattner	e236ac64a2	disable this code for now, it's not yet safely updating phi nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31124 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-22 22:47:10 +00:00
Chris Lattner	d2c1d2200b	Implement PR964 and Regression/CodeGen/Generic/SwitchLowering.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31119 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-22 21:36:53 +00:00
Reid Spencer	b83eb6447b	For PR950: This patch implements the first increment for the Signless Types feature. All changes pertain to removing the ConstantSInt and ConstantUInt classes in favor of just using ConstantInt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31063 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-20 07:07:24 +00:00
Bill Wendling	c70ddad2b7	Partially in response to PR926: insert the newly created machine basic blocks into the basic block list when lowering the switch inst. into a binary tree of if-then statements. This allows the "visitSwitchCase" func to allow for fall-through behavior. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31057 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-19 21:46:38 +00:00
Jim Laskey	c7c3f110ed	Pass AliasAnalysis thru to DAGCombiner. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30984 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-16 20:52:31 +00:00
Evan Cheng	8b2794aeff	Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30945 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-13 21:14:26 +00:00
Andrew Lenharth	82c3d8f81a	Jimptables working again on alpha. As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30873 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-11 04:29:42 +00:00
Chris Lattner	755480681c	add two helper methods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30869 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-11 03:58:02 +00:00
Evan Cheng	466685d41a	Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30844 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-09 20:57:25 +00:00
Chris Lattner	e0cfc8b2f2	jump tables handle pic git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30776 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-06 22:32:29 +00:00
Evan Cheng	786225adf0	Make use of getStore(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30759 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-05 23:01:46 +00:00
Evan Cheng	693163e74d	Fix some typos that can cause a flag value to have more than one use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30727 91177308-0d34-0410-b5e6-96231b3b80d8	2006-10-04 22:23:53 +00:00
Chris Lattner	57f9a43c64	refactor critical edge breaking out into the SplitCritEdgesForPHIConstants method. This is a baby step towards fixing PR925. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30643 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-28 06:17:10 +00:00
Andrew Lenharth	16113431e8	Comments on JumpTableness git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30615 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-26 20:02:30 +00:00
Andrew Lenharth	beec30eaf3	Add support for other relocation bases to jump tables, as well as custom asm directives git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30593 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-24 19:45:58 +00:00
Evan Cheng	2ae5b87996	PIC jump table entries are always 32-bit. This fixes PIC jump table support on X86-64. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30590 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-24 05:22:38 +00:00
Andrew Lenharth	3fbd67898e	absolute addresses must match pointer size git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30461 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-18 17:59:35 +00:00
Chris Lattner	c970f062e0	If LSR went through a lot of trouble to put constants (e.g. the addr of a global in a specific BB, don't undo this!). This allows us to compile CodeGen/X86/loop-hoist.ll into: _foo: xorl %eax, %eax * movl L_Arr$non_lazy_ptr, %ecx movl 4(%esp), %edx LBB1_1: #cond_true movl %eax, (%ecx,%eax,4) incl %eax cmpl %edx, %eax jne LBB1_1 #cond_true LBB1_2: #return ret instead of: _foo: xorl %eax, %eax movl 4(%esp), %ecx LBB1_1: #cond_true * movl L_Arr$non_lazy_ptr, %edx movl %eax, (%edx,%eax,4) incl %eax cmpl %ecx, %eax jne LBB1_1 #cond_true LBB1_2: #return ret This was noticed in 464.h264ref. This doesn't usually affect PPC, but strikes X86 all the time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30290 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-13 06:02:42 +00:00
Chris Lattner	c66764c007	This code was trying too hard. By eliminating redundant edges in the CFG due to switch cases going to the same place, it make #pred != #phi entries, breaking live interval analysis. This fixes 458.sjeng on x86 with llc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30236 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-10 06:36:57 +00:00
Chris Lattner	6ddf8ed6fe	Implement the fpowi now by lowering to a libcall git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30225 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-09 06:03:30 +00:00
Chris Lattner	d5e93c0795	Fix CodeGen/Generic/2006-09-06-SwitchLowering.ll, a bug where SDIsel inserted too many phi operands when lowering a switch to branches in some cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30142 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-07 01:59:34 +00:00
Chris Lattner	09e460662a	Completely eliminate def&use operands. Now a register operand is EITHER a def operand or a use operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30109 91177308-0d34-0410-b5e6-96231b3b80d8	2006-09-05 02:31:13 +00:00
Chris Lattner	a4f0b3a084	s\|llvm/Support/Visibility.h\|llvm/Support/Compiler.h\| git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29911 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-27 12:54:02 +00:00
Chris Lattner	be384162c6	minor changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29740 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-16 22:57:46 +00:00
Chris Lattner	f9f37fc52c	eliminate use of getNode that takes vector of valuetypes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29687 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-14 23:53:35 +00:00
Chris Lattner	bd564bfc63	Start eliminating temporary vectors used to create DAG nodes. Instead, pass in the start of an array and a count of operands where applicable. In many cases, the number of operands is known, so this static array can be allocated on the stack, avoiding the heap. In many other cases, a SmallVector can be used, which has the same benefit in the common cases. I updated a lot of code calling getNode that takes a vector, but ran out of time. The rest of the code should be updated, and these methods should be removed. We should also do the same thing to eliminate the methods that take a vector of MVT::ValueTypes. It would be extra nice to convert the dagiselemitter to avoid creating vectors for operands when calling getTargetNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29566 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-08 02:23:42 +00:00
Chris Lattner	3700f90c19	Work around a GCC 3.3.5 bug noticed by a user. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29490 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-03 00:18:59 +00:00
Jim Laskey	eb577ba3b8	Final polish on machine pass registries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29471 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-02 12:30:23 +00:00
Jim Laskey	9373beba60	Now that the ISel is available, it's possible to create a default instruction scheduler creator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29452 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-01 19:14:14 +00:00
Jim Laskey	9ff542f2cc	1. Change use of "Cache" to "Default". 2. Added argument to instruction scheduler creators so the creators can do special things. 3. Repaired target hazard code. 4. Misc. More to follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29450 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-01 18:29:48 +00:00
Jim Laskey	13ec702c43	Introducing plugable register allocators and instruction schedulers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29434 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-01 14:21:23 +00:00
Evan Cheng	8825a485e2	PIC jump table entries are always 32-bit even in 64-bit mode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29422 91177308-0d34-0410-b5e6-96231b3b80d8	2006-08-01 01:03:13 +00:00
Nate Begeman	4d9bbdc440	Code cleanups, per review git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29347 91177308-0d34-0410-b5e6-96231b3b80d8	2006-07-27 16:46:58 +00:00
Nate Begeman	2f1ae88445	Support jump tables when in PIC relocation model git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29318 91177308-0d34-0410-b5e6-96231b3b80d8	2006-07-27 01:13:04 +00:00
Chris Lattner	a15cf7045e	Mems can be in the output list also. This is the second half of a fix for PR833 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29224 91177308-0d34-0410-b5e6-96231b3b80d8	2006-07-20 19:02:21 +00:00
Chris Lattner	9525528a7d	Use hidden visibility to make symbols in an anonymous namespace get dropped. This shrinks libllvmgcc.dylib another 67K git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28975 91177308-0d34-0410-b5e6-96231b3b80d8	2006-06-28 23:17:24 +00:00
Evan Cheng	a844126c43	Consistency. EXTRACT_ELEMENT index operand should have ptr type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28795 91177308-0d34-0410-b5e6-96231b3b80d8	2006-06-15 08:11:54 +00:00
Chris Lattner	a3bb86dd6b	Make sure to update the CFG correctly if a switch only has a default dest. This fixes CodeGen/Generic/2006-06-12-LowerSwitchCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28755 91177308-0d34-0410-b5e6-96231b3b80d8	2006-06-12 18:25:29 +00:00
Chris Lattner	0c48fd4610	Fix X86/inline-asm.ll:test2, a case where an input value was implicitly truncated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28733 91177308-0d34-0410-b5e6-96231b3b80d8	2006-06-08 18:27:11 +00:00
Chris Lattner	cf752aa502	Fix Regression/CodeGen/X86/inline-asm.ll, a case where inline asm causes implement extension of a register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28731 91177308-0d34-0410-b5e6-96231b3b80d8	2006-06-08 18:22:48 +00:00
Evan Cheng	d61c4820c9	Make CALL node consistent with RET node. Signness of value has type MVT::i32 instead of MVT::i1. Either is fine except MVT::i32 is probably a legal type for most (if not all) platforms while MVT::i1 is not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28511 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-26 23:13:20 +00:00
Evan Cheng	8e7d056bc5	Change RET node to include signness information of the return values. e.g. RET chain, value1, sign1, value2, sign2 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28509 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-26 23:09:09 +00:00
Evan Cheng	f6d62c2e2a	CALL node change: now including signness of every argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28461 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-25 00:55:32 +00:00
Evan Cheng	80235d508e	-enable-unsafe-fp-math implies -enable-finite-only-fp-math git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28437 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-23 18:18:46 +00:00
Vladimir Prus	124729155d	Fix missing include git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28435 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-23 13:43:15 +00:00
Evan Cheng	f6f9581983	Incorrect SETCC CondCode used for FP comparisons. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28433 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-23 06:40:47 +00:00
Chris Lattner	d202ca4d98	Fix the result of the call to use a correct vbitconvert. There is no need to use getPackedTypeBreakdown at all here. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28365 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-17 20:49:36 +00:00
Chris Lattner	1b8daae71b	Correct a previous patch which broke CodeGen/PowerPC/vec_call.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28364 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-17 20:43:21 +00:00
Evan Cheng	6c43f35d74	Fixed a LowerCallTo and LowerArguments bug. They were introducing illegal VBIT_VECTOR nodes. There were some confusion about the semantics of getPackedTypeBreakdown(). e.g. for <4 x f32> it returns 1 and v4f32, not 4, and f32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28352 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-17 18:16:39 +00:00
Chris Lattner	da098e7d10	Add support for calls that pass and return legal vectors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28340 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-16 23:39:44 +00:00
Chris Lattner	f4ec817299	Add a new ISD::CALL node, make the default impl of TargetLowering::LowerCallTo produce it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28338 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-16 22:53:20 +00:00
Chris Lattner	8c0c10c2b9	Add a chain to FORMAL_ARGUMENTS. This is a minimal port of the X86 backend, it doesn't currently use/maintain the chain properly. Also, make the X86ISelLowering.cpp file 80-col clean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28320 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-16 06:45:34 +00:00
Chris Lattner	966454129d	Move function-live-in-handling code from the sdisel code to the scheduler. This code should be emitted after legalize, so it can't be in sdisel. Note that the EmitFunctionEntryCode hook should be updated to operate on the DAG. The X86 backend is the only one currently using this hook. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28315 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-16 06:10:58 +00:00
Evan Cheng	ee00a1d12c	Revert an un-intended change git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28278 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-13 05:53:47 +00:00
Chris Lattner	b5d9319bc5	Remove dead vars git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28255 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-12 18:06:45 +00:00
Evan Cheng	e165a78551	Refactor scheduler code. Move register-reduction list scheduler to a separate file. Added an initial implementation of top-down register pressure reduction list scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28226 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-11 23:55:42 +00:00
Nate Begeman	17c275ff2c	Make emission of jump tables a bit less conservative; they are now required to be only 31.25% dense, rather than 75% dense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28165 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-08 16:51:36 +00:00
Chris Lattner	f0df8824eb	When inserting casts, be careful of where we put them. We cannot insert a cast immediately before a PHI node. This fixes Regression/CodeGen/Generic/2006-05-06-GEP-Cast-Sink-Crash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28143 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-06 09:10:37 +00:00
Chris Lattner	903236468c	More aggressively sink GEP offsets into loops. For example, before we generated: movl 8(%esp), %eax movl %eax, %edx addl $4316, %edx cmpb $1, %cl ja LBB1_2 #cond_false LBB1_1: #cond_true movl L_QuantizationTables720$non_lazy_ptr, %ecx movl %ecx, (%edx) movl L_QNOtoQuantTableShift720$non_lazy_ptr, %edx movl %edx, 4460(%eax) ret ... Now we generate: movl 8(%esp), %eax cmpb $1, %cl ja LBB1_2 #cond_false LBB1_1: #cond_true movl L_QuantizationTables720$non_lazy_ptr, %ecx movl %ecx, 4316(%eax) movl L_QNOtoQuantTableShift720$non_lazy_ptr, %ecx movl %ecx, 4460(%eax) ret ... which uses one fewer register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28129 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-05 21:17:49 +00:00
Chris Lattner	7e598096ea	Sink noop copies into the basic block that uses them. This reduces the number of cross-block live ranges, and allows the bb-at-a-time selector to always coallesce these away, at isel time. This reduces the load on the coallescer and register allocator. For example on a codec on X86, we went from: 1643 asm-printer - Number of machine instrs printed 419 liveintervals - Number of loads/stores folded into instructions 1144 liveintervals - Number of identity moves eliminated after coalescing 1022 liveintervals - Number of interval joins performed 282 liveintervals - Number of intervals after coalescing 1304 liveintervals - Number of original intervals 86 regalloc - Number of times we had to backtrack 1.90232 regalloc - Ratio of intervals processed over total intervals 40 spiller - Number of values reused 182 spiller - Number of loads added 121 spiller - Number of stores added 132 spiller - Number of register spills 6 twoaddressinstruction - Number of instructions commuted to coalesce 360 twoaddressinstruction - Number of two-address instructions to: 1636 asm-printer - Number of machine instrs printed 403 liveintervals - Number of loads/stores folded into instructions 1155 liveintervals - Number of identity moves eliminated after coalescing 1033 liveintervals - Number of interval joins performed 279 liveintervals - Number of intervals after coalescing 1312 liveintervals - Number of original intervals 76 regalloc - Number of times we had to backtrack 1.88998 regalloc - Ratio of intervals processed over total intervals 1 spiller - Number of copies elided 41 spiller - Number of values reused 191 spiller - Number of loads added 114 spiller - Number of stores added 128 spiller - Number of register spills 4 twoaddressinstruction - Number of instructions commuted to coalesce 356 twoaddressinstruction - Number of two-address instructions On this testcase, this change provides a modest reduction in spill code, regalloc iterations, and total instructions emitted. It increases the number of register coallesces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28115 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-05 01:04:50 +00:00
Nate Begeman	f4360a4789	Finish up the initial jump table implementation by allowing jump tables to not be 100% dense. Increase the minimum threshold for the number of cases in a switch statement from 4 to 6 in order to create a jump table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28079 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-03 03:48:02 +00:00
Owen Anderson	a69571c799	Refactor TargetMachine, pushing handling of TargetData into the target-specific subclasses. This has one caller-visible change: getTargetData() now returns a pointer instead of a reference. This fixes PR 759. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28074 91177308-0d34-0410-b5e6-96231b3b80d8	2006-05-03 01:29:57 +00:00
Evan Cheng	55d0fa1bfa	Remove the temporary option: -no-isel-fold-inflight git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28012 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-28 18:54:11 +00:00
Evan Cheng	020c41f21e	TargetLowering::LowerArguments should return a VBIT_CONVERT of FORMAL_ARGUMENTS SDOperand in the return result vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28009 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-28 05:25:15 +00:00
Evan Cheng	552c4a8494	Added a temporary option -no-isel-fold-inflight to control whether a "inflight" node can be folded. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28003 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-28 02:09:19 +00:00
Evan Cheng	f7179bb56e	Insert a VBIT_CONVERT between a FORMAL_ARGUMENT node and its vector uses (VAND, VADD, etc.). Legalizer will assert otherwise. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27991 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-27 08:29:42 +00:00
Evan Cheng	3b0d286d00	Don't forget return void. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27974 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-25 23:03:35 +00:00
Nate Begeman	9453eea49b	Fix the updating of the machine CFG when a PHI node was in a successor of the jump table's range check block. This re-enables 100% dense jump tables by default on PPC & x86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27952 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-23 06:26:20 +00:00
Nate Begeman	05f9466cf0	Turn of jump tables for a bit, there are still some issues to work out with updating the machine CFG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27949 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-22 23:51:56 +00:00
Nate Begeman	37efe67645	JumpTable support! What this represents is working asm and jit support for x86 and ppc for 100% dense switch statements when relocations are non-PIC. This support will be extended and enhanced in the coming days to support PIC, and less dense forms of jump tables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27947 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-22 18:53:45 +00:00
Chris Lattner	4a1cd9c61e	The BFS scheduler is apparently nondeterminstic (causes many llvmgcc bootstrap miscompares). Switch RISC targets to use the list-td scheduler, which isn't. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27933 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-21 17:16:16 +00:00
Chris Lattner	fdfded5588	Implement support for the formal_arguments node. To get this, targets shouldcustom legalize it and remove their XXXTargetLowering::LowerArguments overload git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27604 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-12 16:20:43 +00:00
Chris Lattner	b22e35a3c3	Add code generator support for VSELECT git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27542 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-08 22:22:57 +00:00
Chris Lattner	3e104b1116	Codegen shufflevector as VVECTOR_SHUFFLE git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27529 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-08 04:15:24 +00:00
Chris Lattner	67f1351498	Stub out shufflevector git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27514 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-08 01:19:25 +00:00
Chris Lattner	2e2ef95350	Make a vector live across blocks have the correct Vec type. This fixes CodeGen/X86/2006-04-04-CrossBlockCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27436 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-05 06:54:42 +00:00
Chris Lattner	e58a780166	Intrinsics that just load from memory can be treated like loads: they don't have to serialize against each other. This allows us to schedule lvx's across each other, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27346 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-02 03:41:14 +00:00
Chris Lattner	5e46a19ec8	Add a new -view-legalize-dags command line option git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27342 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-02 03:07:27 +00:00
Chris Lattner	f8814cf8b8	Prefer larger register classes over smaller ones when a register occurs in multiple register classes. This fixes PowerPC/2006-04-01-FloatDoubleExtend.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27334 91177308-0d34-0410-b5e6-96231b3b80d8	2006-04-02 00:24:45 +00:00
Chris Lattner	7e02151ce2	Make sure to pass enough values to phi nodes when we are dealing with decimated vectors. This fixes UnitTests/Vector/sumarray-dbl.c git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27280 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-31 02:12:18 +00:00
Chris Lattner	70c2a61e0a	Significantly improve handling of vectors that are live across basic blocks, handling cases where the vector elements need promotion, expansion, and when the vector type itself needs to be decimated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27278 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-31 02:06:56 +00:00
Chris Lattner	2bbd81064a	Bug fixes: handle constantexpr insert/extract element operations Handle constantpacked vectors with constantexpr elements. This fixes CodeGen/Generic/vector-constantexpr.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27241 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-29 00:11:43 +00:00
Jim Laskey	bf7637d590	More bulletproofing of llvm.dbg.declare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27224 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-28 13:45:20 +00:00
Chris Lattner	48b61a729d	Tblgen doesn't like multiple SDNode<> definitions that map to the sameenum value. Split them into separate enums. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27201 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-28 00:40:33 +00:00
Jim Laskey	8c39020359	Reactivate llvm.dbg.declare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27192 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-27 23:31:10 +00:00
Chris Lattner	67995340fb	Disable dbg_declare, it currently breaks the CFE build git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27182 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-27 21:36:03 +00:00
Nate Begeman	f15485a8d0	SelectionDAGISel can now natively handle Switch instructions, in the same manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary search tree of basic blocks. The new approach has several advantages: it is faster, it generates significantly smaller code in many cases, and it paves the way for implementing dense switch tables as a jump table by handling switches directly in the instruction selector. This functionality is currently only enabled on x86, but should be safe for every target. In anticipation of making it the default, the cfg is now properly updated in the x86, ppc, and sparc select lowering code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27156 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-27 01:32:24 +00:00
Jim Laskey	fbcf23c3c1	Bullet proof against undefined args produced by upgrading ols-style debug info. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27155 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-26 22:46:27 +00:00
Chris Lattner	7255a54561	fix inverted conditional git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27089 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-24 22:49:42 +00:00
Jim Laskey	0892cee81f	Rename for truth in advertising. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27063 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-24 09:50:27 +00:00
Chris Lattner	0eade319cd	Lower target intrinsics into an INTRINSIC node git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27035 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-24 02:22:33 +00:00
Jim Laskey	43970fec32	Handle new forms of llvm.dbg intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26988 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-23 18:06:46 +00:00
Chris Lattner	7e358908b8	Fix a typo git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26965 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-22 22:20:49 +00:00
Chris Lattner	e25ca692c0	Implement simple support for vector casting. This can currently only handle casts between legal vector types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26961 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-22 20:09:35 +00:00
Chris Lattner	384504cea6	add some trivial support for extractelement. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26928 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-21 20:44:12 +00:00
Chris Lattner	1c6191ffe7	Add a hacky workaround for crashes due to vectors live across blocks. Note that this code won't work for vectors that aren't legal on the target. Improvements coming. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26925 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-21 19:20:37 +00:00
Chris Lattner	2332b9f16f	implement basic support for INSERT_VECTOR_ELT. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26849 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-19 01:17:20 +00:00
Chris Lattner	b2827b0901	Rename ConstantVec -> BUILD_VECTOR and VConstant -> VBUILD_VECTOR. Allow*BUILD_VECTOR to take variable inputs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26847 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-19 00:52:58 +00:00
Chris Lattner	23d564c11f	implement vector.ll:test_undef git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26845 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-19 00:20:20 +00:00
Chris Lattner	c7029805ef	Change the structure of lowering vector stuff. Note: This breaks some things. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26840 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-18 01:44:44 +00:00
Nate Begeman	81e8097377	Remove BRTWOWAY* Make the PPC backend not dependent on BRTWOWAY_CC and make the branch selector smarter about the code it generates, fixing a case in the readme. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26814 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-17 01:40:33 +00:00
Chris Lattner	6cb7004c34	Fix a problem fully scalarizing values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26811 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-16 23:05:19 +00:00
Chris Lattner	199862b749	Add support for CopyFromReg from vector values. Note: this doesn't support illegal vector types yet! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26799 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-16 19:57:50 +00:00
Chris Lattner	3c38449be6	Teach CreateRegForValue how to handle vector types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26798 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-16 19:51:18 +00:00
Chris Lattner	28b5b1c7b5	add support for vector->vector casts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26788 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-15 22:19:46 +00:00
Jim Laskey	f4321a3a43	Handle the removal of the debug chain. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26729 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-13 13:07:37 +00:00
Evan Cheng	0937103368	Added a parameter to control whether Constant::getStringValue() would chop off the result string at the first null terminator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26704 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-10 23:52:03 +00:00
Chris Lattner	7d74d1145f	scrape out bits of llvm-db git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26701 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-10 22:48:19 +00:00
Chris Lattner	20a4921791	Simplify the interface to the schedulers, to not pass the selected heuristicin. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26692 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-10 07:49:12 +00:00
Chris Lattner	59bcce5ae5	remove dbg_declare, it's not used yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26659 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-09 20:02:42 +00:00
Jim Laskey	21b6c9d647	Get rid of the multiple copies of getStringValue. Now a Constant:: method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26616 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-08 18:11:07 +00:00
Chris Lattner	b0d21ef20c	Change the interface for getting a target HazardRecognizer to be more clean. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26608 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-08 04:25:59 +00:00
Chris Lattner	03fc53c174	Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where targets can implement them. Make the top-down scheduler non-g5-specific. Remove the old testing hazard recognizer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26569 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-06 00:22:00 +00:00
Chris Lattner	a5de484bc7	Split the list scheduler into top-down and bottom-up pieces. The priority function of the top-down scheduler are completely bogus currently, and having (future) PPC specific in this file is also wrong, but this is a small incremental step. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26552 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-05 21:10:33 +00:00
Chris Lattner	a09f848c11	Codegen copysign[f] into a FCOPYSIGN node git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26542 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-05 05:09:38 +00:00
Evan Cheng	3e1ce5a44d	Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26504 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-03 07:01:07 +00:00
Chris Lattner	41edaa0529	remove the read/write port/io intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26479 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-03 00:19:58 +00:00
Chris Lattner	03dd465215	Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving PR709, and paving the way for future progress. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26476 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-03 00:00:25 +00:00
Evan Cheng	860771d2d8	Vector ops lowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26436 91177308-0d34-0410-b5e6-96231b3b80d8	2006-03-01 01:09:54 +00:00
Chris Lattner	22873462c9	Add support for output memory constraints. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26410 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-27 23:45:39 +00:00
Jeff Cohen	7e88103cde	Get VC++ building again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26351 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-24 02:52:40 +00:00
Chris Lattner	0e43f2ba11	Implement (most of) selection of inline asm memory operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26350 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-24 02:13:54 +00:00
Chris Lattner	87bc3bd121	Lower C_Memory operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26346 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-24 01:11:24 +00:00
Chris Lattner	9f6637db10	Fix an endianness problem on big-endian targets with expanded operands to inline asms. Mark some methods const. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26334 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-23 20:06:57 +00:00
Chris Lattner	c3a9f8d31c	Record all of the expanded registers in the DAG and machine instr, fixing several bugs in inline asm expanded operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26332 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-23 19:21:04 +00:00
Chris Lattner	9b6fb5de49	This fixes a couple of problems with expansion git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26318 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-22 23:09:03 +00:00
Chris Lattner	864635ad7b	Change a whole bunch of code to be built around RegsForValue instead of a single register number. This fully implements promotion for inline asms, expand is close but not quite right yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26316 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-22 22:37:12 +00:00
Chris Lattner	1efa40f6a4	split register class handling from explicit physreg handling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26308 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-22 00:56:39 +00:00
Chris Lattner	0f0b7d4927	Adjust to changes in getRegForInlineAsmConstraint prototype git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26306 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-21 23:12:12 +00:00
Evan Cheng	cffbb5174f	Dumb bug. Code sees a memcpy from X+c so it increments src offset. But it turns out not to point to a constant string but it forgot change the offset back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26242 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-16 23:11:42 +00:00
Evan Cheng	298ebf2bd8	If the false case is the current basic block, then this is a self loop. We do not want to emit "Loop: ... brcond Out; br Loop", as it adds an extra instruction in the loop. Instead, invert the condition and emit "Loop: ... br!cond Loop; br Out. Generalize the fix by moving it from PPCDAGToDAGISel to SelectionDAGLowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26231 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-16 08:27:56 +00:00
Evan Cheng	a47876d87a	Remove an unused function parameter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26221 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-15 22:12:35 +00:00
Evan Cheng	74d0aa9a4b	Turn a memcpy from string constant into a series of stores of constant values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26219 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-15 21:59:04 +00:00
Evan Cheng	c080d6fb3d	Lower memcpy with small constant size operand into a series of load / store ops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26195 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-15 01:54:51 +00:00
Evan Cheng	dea7245997	Doh again! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26188 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 23:05:54 +00:00
Evan Cheng	c4f8eee054	Keep to < 80 cols git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26177 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 20:12:38 +00:00
Evan Cheng	ac940ab1bf	Missed a break so memcpy cases fell through to memset. Doh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26176 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 19:45:56 +00:00
Evan Cheng	80e89d7d6c	Fixed a build breakage. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26175 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 09:11:59 +00:00
Evan Cheng	a03a5dc7ce	Rename maxStoresPerMemSet to maxStoresPerMemset, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26174 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 08:38:30 +00:00
Evan Cheng	1db92f947c	Expand memset dst, c, size to a series of stores if size falls below the target specific theshold, e.g. 16 for x86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26171 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 08:22:34 +00:00
Chris Lattner	06a248c9b3	now that libcalls don't suck, we can remove this hack git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26164 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-14 05:39:35 +00:00
Jim Laskey	d96185aa62	Rename to better reflect usage (current and planned.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26145 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-13 12:50:39 +00:00
Jim Laskey	ce72b1755f	Reorg for integration with gcc4. Old style debug info will not be passed though to SelIDAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26115 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-11 01:01:30 +00:00
Evan Cheng	cccf1232a6	Get rid of some memory leaks identified by Valgrind git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25960 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-04 06:49:00 +00:00
Chris Lattner	dc19b70d24	Add initial support for immediates. This allows us to compile this: int %rlwnm(int %A, int %B) { %C = call int asm "rlwnm $0, $1, $2, $3, $4", "=r,r,r,n,n"(int %A, int %B, int 4, int 17) ret int %C } into: _rlwnm: or r2, r3, r3 or r3, r4, r4 rlwnm r2, r2, r3, 4, 17 ;; note the immediates :) or r3, r2, r2 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25955 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-04 02:26:14 +00:00
Chris Lattner	3d81fee851	Initial early support for non-register operands, like immediates git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25952 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-04 02:16:44 +00:00
Chris Lattner	7632e2beb4	remove some #ifdef'd out code, which should properly be in the dag combiner anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25941 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-03 20:13:59 +00:00
Chris Lattner	2223aea6ed	Implement matching constraints. We can now say things like this: %C = call int asm "xyz $0, $1, $2, $3", "=r,r,r,0"(int %A, int %B, int 4) and get: xyz r2, r3, r4, r2 note that the r2's are pinned together. Yaay for 2-address instructions. 2342 ---------------------------------------------------------------------- git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25893 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-02 00:25:23 +00:00
Chris Lattner	4e4b576e2e	Implement simple register assignment for inline asms. This allows us to compile: int %test(int %A, int %B) { %C = call int asm "xyz $0, $1, $2", "=r,r,r"(int %A, int %B) ret int %C } into: (0x8906130, LLVM BB @0x8902220): %r2 = OR4 %r3, %r3 %r3 = OR4 %r4, %r4 INLINEASM <es:xyz $0, $1, $2>, %r2<def>, %r2, %r3 %r3 = OR4 %r2, %r2 BLR which asmprints as: _test: or r2, r3, r3 or r3, r4, r4 xyz $0, $1, $2 ;; need to print the operands now :) or r3, r2, r2 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25878 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-01 18:59:47 +00:00
Chris Lattner	2cc2f66c25	adjust to changes in InlineAsm interface. Fix a few minor bugs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25865 91177308-0d34-0410-b5e6-96231b3b80d8	2006-02-01 01:28:23 +00:00
Chris Lattner	6656dd1a78	Handle physreg input/outputs. We now compile this: int %test_cpuid(int %op) { %B = alloca int %C = alloca int %D = alloca int %A = call int asm "cpuid", "=eax,==ebx,==ecx,==edx,eax"(int* %B, int* %C, int* %D, int %op) %Bv = load int* %B %Cv = load int* %C %Dv = load int* %D %x = add int %A, %Bv %y = add int %x, %Cv %z = add int %y, %Dv ret int %z } to this: _test_cpuid: sub %ESP, 16 mov DWORD PTR [%ESP], %EBX mov %EAX, DWORD PTR [%ESP + 20] cpuid mov DWORD PTR [%ESP + 8], %ECX mov DWORD PTR [%ESP + 12], %EBX mov DWORD PTR [%ESP + 4], %EDX mov %ECX, DWORD PTR [%ESP + 12] add %EAX, %ECX mov %ECX, DWORD PTR [%ESP + 8] add %EAX, %ECX mov %ECX, DWORD PTR [%ESP + 4] add %EAX, %ECX mov %EBX, DWORD PTR [%ESP] add %ESP, 16 ret ... note the proper register allocation. :) it is unclear to me why the loads aren't folded into the adds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25827 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-31 02:03:41 +00:00
Chris Lattner	04c62c78f4	remove method I just added git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25728 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-28 03:43:09 +00:00
Chris Lattner	4f16e70faa	add a new callback git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25727 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-28 03:37:03 +00:00
Nate Begeman	0aed7840ec	Implement Promote for VAARG, and allow it to be custom promoted for people who don't want the default behavior (Alpha). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-28 03:14:31 +00:00
Nate Begeman	ee625573b5	Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for the same functionality. This addresses another piece of bug 680. Next, on to fixing Alpha VAARG, which I broke last time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25696 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-27 21:09:22 +00:00
Chris Lattner	ce7518ce92	initial selectiondag support for new INLINEASM node. Note that inline asms with outputs or inputs are not supported yet. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25664 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-26 22:24:51 +00:00
Nate Begeman	acc398c195	First part of bug 680: Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same way as everything else. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-25 18:21:52 +00:00
Evan Cheng	3f23952404	If scheduler choice is the default (-sched=default), use target scheduling preference to determine which scheduler to use. SchedulingForLatency == Breadth first; SchedulingForRegPressure == bottom up register reduction list scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25599 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-25 09:12:57 +00:00
Jim Laskey	17d52f7234	Typo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25545 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-23 13:34:04 +00:00
Evan Cheng	f0f9c90204	Skeleton of the list schedule. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25544 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-23 08:26:10 +00:00
Evan Cheng	4ef1086749	Factor out more instruction scheduler code to the base class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25532 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-23 07:01:07 +00:00
Chris Lattner	39a17dd31d	Fix bugs lowering stackrestore, fixing 2004-08-12-InlinerAndAllocas.c on PPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25522 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-23 05:22:07 +00:00
Chris Lattner	a3818e6f9a	Fix a bug in a recent refactor that caused a bunch of programs to miscompile or the compiler to crash. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25503 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-21 19:12:11 +00:00
Evan Cheng	a9c2091cd3	Do some code refactoring on Jim's scheduler in preparation of the new list scheduler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25493 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-21 02:32:06 +00:00
Chris Lattner	4eebb60f84	If the target doesn't support f32 natively, insert the FP_EXTEND in target-indep code, so that the LowerReturn code doesn't have to handle it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25482 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-20 18:38:32 +00:00
Chris Lattner	d12b2d7b5a	Temporary work around for a libcall insertion bug: If a target doesn't support FSIN/FCOS nodes, do not lower sin/cos to them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25425 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-18 21:50:14 +00:00
Robert Bocchino	4eb2e3a6f4	Support for the insertelement operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25405 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-17 20:06:42 +00:00
Reid Spencer	0b118206bf	For PR411: This patch is an incremental step towards supporting a flat symbol table. It de-overloads the intrinsic functions by providing type-specific intrinsics and arranging for automatically upgrading from the old overloaded name to the new non-overloaded name. Specifically: llvm.isunordered -> llvm.isunordered.f32, llvm.isunordered.f64 llvm.sqrt -> llvm.sqrt.f32, llvm.sqrt.f64 llvm.ctpop -> llvm.ctpop.i8, llvm.ctpop.i16, llvm.ctpop.i32, llvm.ctpop.i64 llvm.ctlz -> llvm.ctlz.i8, llvm.ctlz.i16, llvm.ctlz.i32, llvm.ctlz.i64 llvm.cttz -> llvm.cttz.i8, llvm.cttz.i16, llvm.cttz.i32, llvm.cttz.i64 New code should not use the overloaded intrinsic names. Warnings will be emitted if they are used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25366 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-16 21:12:35 +00:00
Nate Begeman	3a04ffbf6d	Remove some duplicated code git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25313 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-14 03:18:27 +00:00
Nate Begeman	d88fc03602	bswap implementation git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-14 03:14:10 +00:00
Chris Lattner	140d53c99c	Compile llvm.stacksave/restore into STACKSAVE/STACKRESTORE nodes, and allow targets to custom expand them as they desire. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25273 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-13 02:50:02 +00:00
Chris Lattner	e8f7a4bbee	Add "support" for stacksave/stackrestore to the dag isel git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25268 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-13 02:24:42 +00:00
Robert Bocchino	c0f4cd9931	Added selection DAG support for the extractelement operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25179 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-10 19:04:57 +00:00
Jim Laskey	b2efb853f0	Applied some recommend changes from sabre. The dominate one beginning "let the pass manager do it's thing." Fixes crash when compiling -g files and suppresses dwarf statements if no debug info is present. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25100 91177308-0d34-0410-b5e6-96231b3b80d8	2006-01-04 22:28:25 +00:00
Chris Lattner	9797c5cc3e	enable the gep isel opt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24910 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-21 19:36:36 +00:00
Chris Lattner	3b841e9f52	Lower ConstantAggregateZero into zeros git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24890 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-21 02:43:26 +00:00
Jim Laskey	f5395cee6a	Added source file/line correspondence for dwarf (PowerPC only at this point.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24748 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-16 22:45:29 +00:00
Chris Lattner	86cb643801	Don't lump the filename and working dir together git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24697 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-13 17:40:33 +00:00
Chris Lattner	ac22c83e68	Accept and ignore prefetches for now git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24678 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-12 22:51:16 +00:00
Chris Lattner	3802c2552f	Minor tweak to get isel opt git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24663 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-11 09:05:13 +00:00
Chris Lattner	c78b0b740b	improve code insertion in two ways: 1. Only forward subst offsets into loads and stores, not into arbitrary things, where it will likely become a load. 2. If the source is a cast from pointer, forward subst the cast as well, allowing us to fold the cast away (improving cases when the cast is from an alloca or global). This hasn't been fully tested, but does appear to further reduce register pressure and improve code. Lets let the testers grind on it a bit. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24640 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-08 08:00:12 +00:00
Nate Begeman	cc827e60b6	Fix a crash where ConstantVec nodes were being generated with the wrong type when the target did not support them. Also teach Legalize how to expand ConstantVecs. This allows us to generate _test: lwz r2, 12(r3) lwz r4, 8(r3) lwz r5, 4(r3) lwz r6, 0(r3) addi r2, r2, 4 addi r4, r4, 3 addi r5, r5, 2 addi r6, r6, 1 stw r2, 12(r3) stw r4, 8(r3) stw r5, 4(r3) stw r6, 0(r3) blr For: void %test(%v4i %P) { %T = load %v4i %P %S = add %v4i %T, <int 1, int 2, int 3, int 4> store %v4i %S, %v4i * %P ret void } On PowerPC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24633 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-07 19:48:11 +00:00
Nate Begeman	8cfa57b1b4	Teach the SelectionDAG ISel how to turn ConstantPacked values into constant nodes with vector types. Also teach the asm printer how to print ConstantPacked constant pool entries. This allows us to generate altivec code such as the following, which adds a vector constantto a packed float. LCPI1_0: <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 > .space 4 .space 4 .space 4 .long 1065353216 ; float 1 .text .align 4 .globl _foo _foo: lis r2, ha16(LCPI1_0) la r2, lo16(LCPI1_0)(r2) li r4, 0 lvx v0, r4, r2 lvx v1, r4, r3 vaddfp v0, v1, v0 stvx v0, r4, r3 blr For the llvm code: void %foo(<4 x float> * %a) { entry: %tmp1 = load <4 x float> * %a; %tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 > store <4 x float> %tmp2, <4 x float> *%a ret void } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24616 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-06 06:18:55 +00:00
Chris Lattner	c88d8e944d	Fix the #1 code quality problem that I have seen on X86 (and it also affects PPC and other targets). In a particular, consider code like this: struct Vector3 { double x, y, z; }; struct Matrix3 { Vector3 a, b, c; }; double dot(Vector3 &a, Vector3 &b) { return a.x * b.x + a.y * b.y + a.z * b.z; } Vector3 mul(Vector3 &a, Matrix3 &b) { Vector3 r; r.x = dot( a, b.a ); r.y = dot( a, b.b ); r.z = dot( a, b.c ); return r; } void transform(Matrix3 &m, Vector3 *x, int n) { for (int i = 0; i < n; i++) x[i] = mul( x[i], m ); } we compile transform to a loop with all of the GEP instructions for indexing into 'm' pulled out of the loop (9 of them). Because isel occurs a bb at a time we are unable to fold the constant index into the loads in the loop, leading to PPC code that looks like this: LBB3_1: ; no_exit.preheader li r2, 0 addi r6, r3, 64 ;; 9 values live across the loop body! addi r7, r3, 56 addi r8, r3, 48 addi r9, r3, 40 addi r10, r3, 32 addi r11, r3, 24 addi r12, r3, 16 addi r30, r3, 8 LBB3_2: ; no_exit lfd f0, 0(r30) lfd f1, 8(r4) fmul f0, f1, f0 lfd f2, 0(r3) ;; no constant indices folded into the loads! lfd f3, 0(r4) lfd f4, 0(r10) lfd f5, 0(r6) lfd f6, 0(r7) lfd f7, 0(r8) lfd f8, 0(r9) lfd f9, 0(r11) lfd f10, 0(r12) lfd f11, 16(r4) fmadd f0, f3, f2, f0 fmul f2, f1, f4 fmadd f0, f11, f10, f0 fmadd f2, f3, f9, f2 fmul f1, f1, f6 stfd f0, 0(r4) fmadd f0, f11, f8, f2 fmadd f1, f3, f7, f1 stfd f0, 8(r4) fmadd f0, f11, f5, f1 addi r29, r4, 24 stfd f0, 16(r4) addi r2, r2, 1 cmpw cr0, r2, r5 or r4, r29, r29 bne cr0, LBB3_2 ; no_exit uh, yuck. With this patch, we now sink the constant offsets into the loop, producing this code: LBB3_1: ; no_exit.preheader li r2, 0 LBB3_2: ; no_exit lfd f0, 8(r3) lfd f1, 8(r4) fmul f0, f1, f0 lfd f2, 0(r3) lfd f3, 0(r4) lfd f4, 32(r3) ;; much nicer. lfd f5, 64(r3) lfd f6, 56(r3) lfd f7, 48(r3) lfd f8, 40(r3) lfd f9, 24(r3) lfd f10, 16(r3) lfd f11, 16(r4) fmadd f0, f3, f2, f0 fmul f2, f1, f4 fmadd f0, f11, f10, f0 fmadd f2, f3, f9, f2 fmul f1, f1, f6 stfd f0, 0(r4) fmadd f0, f11, f8, f2 fmadd f1, f3, f7, f1 stfd f0, 8(r4) fmadd f0, f11, f5, f1 addi r6, r4, 24 stfd f0, 16(r4) addi r2, r2, 1 cmpw cr0, r2, r5 or r4, r6, r6 bne cr0, LBB3_2 ; no_exit This is much nicer as it reduces register pressure in the loop a lot. On X86, this takes the function from having 9 spilled registers to 2. This should help some spec programs on X86 (gzip?) This is currently only enabled with -enable-gep-isel-opt to allow perf testing tonight. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24606 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-05 07:10:48 +00:00
Chris Lattner	d67b3a8bf7	dbg.stoppoint returns a value, don't forget to init it git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24583 91177308-0d34-0410-b5e6-96231b3b80d8	2005-12-03 18:50:48 +00:00
Nate Begeman	f43a3ca26d	First chunk of actually generating vector code for packed types. These changes allow us to generate the following code: _foo: li r2, 0 lvx v0, r2, r3 vaddfp v0, v0, v0 stvx v0, r2, r3 blr for this llvm: void %foo(<4 x float>* %a) { entry: %tmp1 = load <4 x float>* %a %tmp2 = add <4 x float> %tmp1, %tmp1 store <4 x float> %tmp2, <4 x float>* %a ret void } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24534 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-30 08:22:07 +00:00
Reid Spencer	6ff7240a5c	Fix a problem with llvm-ranlib that (on some platforms) caused the archive file to become corrupted due to interactions between mmap'd memory segments and file descriptors closing. The problem is completely avoiding by using a third temporary file. Patch provided by Evan Jones git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24527 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-30 05:21:10 +00:00
Chris Lattner	36ce69195e	Add support for a new STRING and LOCATION node for line number support, patch contributed by Daniel Berlin, with a few cleanups here and there by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24515 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-29 06:21:05 +00:00
Nate Begeman	ab48be3772	Check in code to scalarize arbitrarily wide packed types for some simple vector operations (load, add, sub, mul). This allows us to codegen: void %foo(<4 x float> * %a) { entry: %tmp1 = load <4 x float> * %a; %tmp2 = add <4 x float> %tmp1, %tmp1 store <4 x float> %tmp2, <4 x float> *%a ret void } on ppc as: _foo: lfs f0, 12(r3) lfs f1, 8(r3) lfs f2, 4(r3) lfs f3, 0(r3) fadds f0, f0, f0 fadds f1, f1, f1 fadds f2, f2, f2 fadds f3, f3, f3 stfs f0, 12(r3) stfs f1, 8(r3) stfs f2, 4(r3) stfs f3, 0(r3) blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24484 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-22 18:16:00 +00:00
Nate Begeman	4ef3b817fe	Rather than attempting to legalize 1 x float, make sure the SD ISel never generates it. Make MVT::Vector expand-only, and remove the code in Legalize that attempts to legalize it. The plan for supporting N x Type is to continually epxand it in ExpandOp until it gets down to 2 x Type, where it will be scalarized into a pair of scalars. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24482 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-22 01:29:36 +00:00
Chris Lattner	b67eb9131c	Unbreak codegen of bools. This should fix the llc/jit/llc-beta failures from last night. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24427 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-19 18:40:42 +00:00
Nate Begeman	5fbb5d2459	Teach LLVM how to scalarize packed types. Currently, this only works on packed types with an element count of 1, although more generic support is coming. This allows LLVM to turn the following code: void %foo(<1 x float> * %a) { entry: %tmp1 = load <1 x float> * %a; %tmp2 = add <1 x float> %tmp1, %tmp1 store <1 x float> %tmp2, <1 x float> *%a ret void } Into: _foo: lfs f0, 0(r3) fadds f0, f0, f0 stfs f0, 0(r3) blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24416 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-19 00:36:38 +00:00
Nate Begeman	e21ea61588	Split out the shift code from visitBinary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24412 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-18 07:42:56 +00:00
Chris Lattner	b1a5a5c4c0	when debugging lower dbg intrinsics to calls git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24377 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-16 07:22:30 +00:00
Andrew Lenharth	8b91c77385	added a chain output git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24306 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-11 22:48:54 +00:00
Andrew Lenharth	51b8d54922	continued readcyclecounter support git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24300 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-11 16:47:30 +00:00
Chris Lattner	c9ea6fde30	Refactor intrinsic lowering stuff out of visitCall git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24261 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-09 19:44:01 +00:00
Chris Lattner	6b2d69655a	Fix CodeGen/X86/shift-folding.ll:test3 on X86 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24256 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-09 16:50:40 +00:00
Chris Lattner	7436b57de3	Avoid creating a token factor node in trivially redundant cases. This eliminates almost one node per block in common cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24254 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-09 05:03:03 +00:00
Chris Lattner	7c0104b525	Handle GEP's a bit more intelligently. Fold constant indices early and turn power-of-two multiplies into shifts early to improve compile time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24253 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-09 04:45:33 +00:00
Nate Begeman	ae232e7a10	Add the necessary support to the ISel to allow targets to codegen the new alignment information appropriately. Includes code for PowerPC to support fixed-size allocas with alignment larger than the stack. Support for arbitrarily aligned dynamic allocas coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24224 91177308-0d34-0410-b5e6-96231b3b80d8	2005-11-06 09:00:38 +00:00
Chris Lattner	bf209489ad	Significantly simplify this code and make it more aggressive. Instead of having a special case hack for X86, make the hack more general: if an incoming argument register is not used in any block other than the entry block, don't copy it to a vreg. This helps us compile code like this: %struct.foo = type { int, int, [0 x ubyte] } int %test(%struct.foo* %X) { %tmp1 = getelementptr %struct.foo* %X, int 0, uint 2, int 100 %tmp = load ubyte* %tmp1 ; <ubyte> [#uses=1] %tmp2 = cast ubyte %tmp to int ; <int> [#uses=1] ret int %tmp2 } to: _test: lbz r3, 108(r3) blr instead of: _test: lbz r2, 108(r3) or r3, r2, r2 blr The (dead) copy emitted to copy r3 into a vreg for extra-block uses was increasing the live range of r3 past the load, preventing the coallescing. This implements CodeGen/PowerPC/reg-coallesce-simple.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24115 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-30 19:42:35 +00:00
Nate Begeman	4a95945fa5	Add the ability to lower return instructions to TargetLowering. This allows us to lower legal return types to something else, to meet ABI requirements (such as that i64 be returned in two i32 regs on Darwin/ppc). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23802 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-18 23:23:37 +00:00
Chris Lattner	d222f6ab67	Fix Generic/2005-10-18-ZeroSizeStackObject.ll by not requesting a zero sized stack object if either the array size or the type size is zero. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23801 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-18 22:14:06 +00:00
Chris Lattner	2dfa8192ab	remove hack git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23797 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-18 22:11:42 +00:00
Chris Lattner	af21d55aee	Enable Nate's excellent DAG combiner work by default. This allows the removal of a bunch of ad-hoc and crufty code from SelectionDAG.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23682 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-10 16:47:10 +00:00
Chris Lattner	d48050aa15	make sure that -view-isel-dags is the input to the isel, not the input to the second phase of dag combining git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23631 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-05 06:09:10 +00:00
Jeff Cohen	2aeaf4e839	Fix VC++ warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23579 91177308-0d34-0410-b5e6-96231b3b80d8	2005-10-01 03:57:14 +00:00
Chris Lattner	01b3d73c20	Add FP versions of the binary operators, keeping the int and fp worlds seperate. Though I have done extensive testing, it is possible that this will break things in configs I can't test. Please let me know if this causes a problem and I'll fix it ASAP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23504 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-28 22:28:18 +00:00
Chris Lattner	6c38b33613	If the target prefers it, use _setjmp/_longjmp should be used instead of setjmp/longjmp for llvm.setjmp/llvm.longjmp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23481 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-27 22:15:53 +00:00
Chris Lattner	fa57702388	If a function has liveins, and if the target requested that they be plopped into particular vregs, emit copies into the entry MBB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23331 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-13 19:30:54 +00:00
Nate Begeman	2300f55046	Add an option to the DAG Combiner to enable it for beta runs, and turn on that option for PowerPC's beta. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23253 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-07 00:15:36 +00:00
Chris Lattner	fd88f64934	Don't create zero sized stack objects even for array allocas with a zero number of elements. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23219 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-02 18:41:28 +00:00
Chris Lattner	a639a43602	Fix the release build, noticed by Eric van Riet Paap git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23215 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-02 07:09:28 +00:00
Chris Lattner	fab08875b7	For values that are live across basic blocks and need promotion, use ANY_EXTEND instead of ZERO_EXTEND to eliminate extraneous extensions. This eliminates dead zero extensions on formal arguments and other cases on PPC, implementing the newly tightened up test/Regression/CodeGen/PowerPC/small-arguments.ll test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23205 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-02 00:19:37 +00:00
Chris Lattner	da8abb0239	It is NDEBUG not _NDEBUG git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23186 91177308-0d34-0410-b5e6-96231b3b80d8	2005-09-01 18:44:10 +00:00
Chris Lattner	88b9c15912	Disable this code, which broke many tests last night git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23114 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-27 16:16:51 +00:00
Chris Lattner	9d3a483a38	Don't copy regs that are only used in the entry block into a vreg. This changes the code generated for: short %test(short %A) { %B = xor short %A, -32768 ret short %B } to: _test: xori r2, r3, 32768 xoris r2, r2, 65535 extsh r3, r2 blr instead of: _test: rlwinm r2, r3, 0, 16, 31 xori r2, r3, 32768 xoris r2, r2, 65535 extsh r3, r2 blr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23109 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-26 22:49:59 +00:00
Chris Lattner	025c39bf36	Call the InsertAtEndOfBasicBlock hook if the usesCustomDAGSchedInserter flag is set on an instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23098 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-26 20:54:47 +00:00
Chris Lattner	82cfa5d616	Make -view-isel-dags show the dag before instruction selecting, in case the target isel crashes due to unimplemented features like calls :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22997 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-24 00:34:29 +00:00
Chris Lattner	8f03405ee5	Fix a problem where constant expr shifts would not have their shift amount promoted to the right type. This fixes: IA64/2005-08-22-LegalizerCrash.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22969 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-22 17:28:31 +00:00
Chris Lattner	36b708f057	Enable critical edge splitting by default git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22863 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-18 17:35:14 +00:00
Chris Lattner	495a0b5191	Add a new beta option for critical edge splitting, to avoid a problem that Nate noticed in yacr2 (and I know occurs in other places as well). This is still rough, as the critical edge blocks are not intelligently placed but is added to get some idea to see if this improves performance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22825 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-17 06:37:43 +00:00
Chris Lattner	fae59b99b8	Fix a regression on X86, where FP values can be promoted too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22822 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-17 06:06:25 +00:00
Chris Lattner	d5d0f9bd20	Eliminate the RegSDNode class, which 3 nodes (CopyFromReg/CopyToReg/ImplicitDef) used to tack a register number onto the node. Instead of doing this, make a new node, RegisterSDNode, which is a leaf containing a register number. These three operations just become normal DAG nodes now, instead of requiring special handling. Note that with this change, it is no longer correct to make illegal CopyFromReg/CopyToReg nodes. The legalizer will not touch them, and this is bad, so don't do it. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22806 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-16 21:55:35 +00:00
Chris Lattner	7cf7e3f33f	Eliminate the SetCCSDNode in favor of a CondCodeSDNode class. This pulls the CC out of the SetCC operation, making SETCC a standard ternary operation and CC's a standard DAG leaf. This will make it possible for other node to use CC's as operands in the future... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22728 91177308-0d34-0410-b5e6-96231b3b80d8	2005-08-09 20:20:18 +00:00
Jeff Cohen	00b16889ab	Eliminate all remaining tabs and trailing spaces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22523 91177308-0d34-0410-b5e6-96231b3b80d8	2005-07-27 06:12:32 +00:00
Nate Begeman	700a3c97e9	Remove unnecessary FP_EXTEND. This causes worse codegen for SSE. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22469 91177308-0d34-0410-b5e6-96231b3b80d8	2005-07-19 16:50:03 +00:00
Chris Lattner	e64e72b794	Make several cleanups to Andrews varargs change: 1. Pass Value*'s into lowering methods so that the proper pointers can be added to load/stores from the valist 2. Intrinsics that return void should only return a token chain, not a token chain/retval pair. 3. Rename LowerVAArgNext -> LowerVAArg, because VANext is long gone. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22338 91177308-0d34-0410-b5e6-96231b3b80d8	2005-07-05 19:57:53 +00:00
Andrew Lenharth	06ef88472f	restore old srcValueNode behavior and try to to work around it git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22315 91177308-0d34-0410-b5e6-96231b3b80d8	2005-06-29 18:54:02 +00:00
Andrew Lenharth	782ad62f33	tracking the instructions causing loads and stores provides more information than just the pointer being loaded or stored git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22311 91177308-0d34-0410-b5e6-96231b3b80d8	2005-06-29 15:57:19 +00:00
Andrew Lenharth	213e557cef	If we support structs as va_list, we must pass pointers to them to va_copy See last commit for LangRef, this implements it on all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22273 91177308-0d34-0410-b5e6-96231b3b80d8	2005-06-22 21:04:42 +00:00
Andrew Lenharth	558bc88a00	core changes for varargs git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22254 91177308-0d34-0410-b5e6-96231b3b80d8	2005-06-18 18:34:52 +00:00
Chris Lattner	1ca85d567c	Fix construction of ioport intrinsics, fixing X86/io.llx and io-port.llx git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22026 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-14 13:56:55 +00:00
Chris Lattner	adf6c2a0cb	Eliminate special purpose hacks for dynamic_stack_alloc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22015 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-14 07:29:57 +00:00
Chris Lattner	50381b6c41	LowerOperation takes a dag git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22004 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-14 05:50:48 +00:00
Chris Lattner	a8217e3000	Align doubles on 8-byte boundaries if possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21993 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-13 23:14:17 +00:00
Chris Lattner	adf6a965a3	Add an isTailCall flag to LowerCallTo git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21958 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-13 18:50:42 +00:00
Chris Lattner	405ef9e28d	Emit function entry code after lowering hte arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21931 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-13 07:33:32 +00:00
Chris Lattner	3aa7832c82	Allow targets to emit code into the entry block of each function git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21930 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-13 07:23:21 +00:00
Chris Lattner	9092fa310c	Pass calling convention to use into lower call to git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21900 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-12 19:56:57 +00:00
Chris Lattner	16ce0df927	wrap long line git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21870 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-11 18:57:06 +00:00
Chris Lattner	ef311aa7cf	The semantics of cast X to bool are a comparison against zero, not a truncation! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21833 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-09 22:17:13 +00:00
Chris Lattner	d0f6c1f52d	Add support for matching the READPORT, WRITEPORT, READIO, WRITEIO intrinsics git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21825 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-09 20:22:36 +00:00
Chris Lattner	fd414a27fd	Don't use the load/store instruction as the source pointer, use the pointer being stored/loaded through! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21806 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-09 04:28:51 +00:00
Chris Lattner	369e6db9b6	wrap long lines git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21804 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-09 04:08:33 +00:00
Chris Lattner	7ea0ade1b6	When hitting an unsupported intrinsic, actually print it Lower debug info to noops. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21698 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-05 17:55:17 +00:00
Andrew Lenharth	691ef2ba06	Implement count leading zeros (ctlz), count trailing zeros (cttz), and count population (ctpop). Generic lowering is implemented, however only promotion is implemented for SelectionDAG at the moment. More coming soon. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21676 91177308-0d34-0410-b5e6-96231b3b80d8	2005-05-03 17:19:30 +00:00
Chris Lattner	f76e7dc8d8	Codegen and legalize sin/cos/llvm.sqrt as FSIN/FCOS/FSQRT calls. This patch was contributed by Morten Ofstad, with some minor tweaks and bug fixes added by me. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21636 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-30 04:43:14 +00:00
Andrew Lenharth	2d86ea21dd	Implement Value* tracking for loads and stores in the selection DAG. This enables one to use alias analysis in the backends. (TRUNK)Stores and (EXT\|ZEXT\|SEXT)Loads have an extra SDOperand which is a SrcValueSDNode which contains the Value. Note that if the operation is introduced by the backend, it will still have the operand, but the value will be null. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21599 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-27 20:10:01 +00:00
Misha Brukman	dedf2bd5a3	Convert tabs to spaces git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21439 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-22 04:01:18 +00:00
Misha Brukman	edf128a7fa	Remove trailing whitespace git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21420 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-21 22:36:52 +00:00
Nate Begeman	b882752bd0	Fold shift by size larger than type size to undef Make llvm undef values generate ISD::UNDEF nodes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21261 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-12 23:12:17 +00:00
Chris Lattner	e7ccd4acd2	Emit BRCONDTWOWAY when possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21167 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-09 03:30:29 +00:00
Chris Lattner	c0f18152d9	transform fabs/fabsf calls into FABS nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21014 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-02 05:26:53 +00:00
Chris Lattner	b9fccc4193	Turn -0.0 - X -> fneg git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21011 91177308-0d34-0410-b5e6-96231b3b80d8	2005-04-02 05:04:50 +00:00
Andrew Lenharth	95762124a1	PCMarker support for DAG and Alpha git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20965 91177308-0d34-0410-b5e6-96231b3b80d8	2005-03-31 21:24:06 +00:00
Chris Lattner	a33ef4816d	Instead of setting up the CFG edges at selectiondag construction time, set them up after the code has been emitted. This allows targets to select one mbb as multiple mbb's as needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20937 91177308-0d34-0410-b5e6-96231b3b80d8	2005-03-30 01:10:47 +00:00
Chris Lattner	f51d3bd676	Fix a bug that andrew noticed where we do not correctly sign/zero extend returned integer values all of the way to 64-bits (we only did it to 32-bits leaving the top bits undefined). This causes problems for targets like alpha whose ABI's define the top bits too. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20926 91177308-0d34-0410-b5e6-96231b3b80d8	2005-03-29 19:09:56 +00:00
Nate Begeman	8e21e71b24	Change interface to LowerCallTo to take a boolean isVarArg argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20842 91177308-0d34-0410-b5e6-96231b3b80d8	2005-03-26 01:29:23 +00:00
Chris Lattner	e4d5c441e0	This mega patch converts us from using Function::a{iterator\|begin\|end} to using Function::arg_{iterator\|begin\|end}. Likewise Module::g* -> Module::global_*. This patch is contributed by Gabor Greif, thanks! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20597 91177308-0d34-0410-b5e6-96231b3b80d8	2005-03-15 04:54:21 +00:00
Misha Brukman	d3f03e4b50	Fix compilation errors with VS 2005, patch by Aaron Gray. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20231 91177308-0d34-0410-b5e6-96231b3b80d8	2005-02-17 21:39:27 +00:00
Chris Lattner	aa781b3404	Don't sink argument loads into loops or other bad places. This disables folding of argument loads with instructions that are not in the entry block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20228 91177308-0d34-0410-b5e6-96231b3b80d8	2005-02-17 19:40:32 +00:00
Chris Lattner	ac9dc08c7f	Adjust to changes in SelectionDAG interface. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19779 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-23 04:36:26 +00:00
Chris Lattner	68cd65ea68	Get this to work for 64-bit systems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19763 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-22 23:04:37 +00:00
Chris Lattner	2c49f27955	Support targets that do not use i8 shift amounts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19707 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-19 22:31:21 +00:00
Chris Lattner	ef5cd1d3cf	Teach legalize to promote copy(from\|to)reg, instead of making the isel pass do it. This results in better code on X86 for floats (because if strict precision is not required, we can elide some more expensive double -> float conversions like the old isel did), and allows other targets to emit CopyFromRegs that are not legal for arguments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19668 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-18 17:54:55 +00:00
Chris Lattner	f30b73b1c6	Allow setcc operations to have nonbool types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19656 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-18 02:52:03 +00:00
Chris Lattner	d3948116b8	Non-volatile loads can be freely reordered against each other. This fixes X86/reg-pressure.ll again, and allows us to do nice things in other cases. For example, we now codegen this sort of thing: int %loadload(int %X, int %Y) { %Z = load int* %Y %Y = load int* %X ;; load between %Z and store %Q = add int %Z, 1 store int %Q, int* %Y ret int %Y } Into this: loadload: mov %EAX, DWORD PTR [%ESP + 4] mov %EAX, DWORD PTR [%EAX] mov %ECX, DWORD PTR [%ESP + 8] inc DWORD PTR [%ECX] ret where we weren't able to form the 'inc [mem]' before. This also lets the instruction selector emit loads in any order it wants to, which can be good for register pressure as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19644 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-17 22:19:26 +00:00
Chris Lattner	a651cf67b7	Don't call SelectionDAG.getRoot() directly, go through a forwarding method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19642 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-17 19:43:36 +00:00
Chris Lattner	0afa8e348e	Implement a target independent optimization to codegen arguments only into the basic block that uses them if possible. This is a big win on X86, as it lets us fold the argument loads into instructions and reduce register pressure (by not loading all of the arguments in the entry block). For this (contrived to show the optimization) testcase: int %argtest(int %A, int %B) { %X = sub int 12345, %A br label %L L: %Y = add int %X, %B ret int %Y } we used to produce: argtest: mov %ECX, DWORD PTR [%ESP + 4] mov %EAX, 12345 sub %EAX, %ECX mov %EDX, DWORD PTR [%ESP + 8] .LBBargtest_1: # L add %EAX, %EDX ret now we produce: argtest: mov %EAX, 12345 sub %EAX, DWORD PTR [%ESP + 4] .LBBargtest_1: # L add %EAX, DWORD PTR [%ESP + 8] ret This also fixes the FIXME in the code. BTW, this occurs in real code. 164.gzip shrinks from 8623 to 8608 lines of .s file. The stack frame in huft_build shrinks from 1644->1628 bytes, inflate_codes shrinks from 116->108 bytes, and inflate_block from 2620->2612, due to fewer spills. Take that alkis. :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19639 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-17 17:55:19 +00:00
Chris Lattner	068a81e9fc	Refactor code into a new method. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19635 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-17 17:15:02 +00:00
Chris Lattner	171453a284	add method stub git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19612 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-16 07:28:41 +00:00
Chris Lattner	c8ea3c4710	Add support for promoted registers being live across blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19595 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-16 02:23:07 +00:00
Chris Lattner	98e5c0e5e4	Use the new TLI method to get this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19582 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-16 01:11:19 +00:00
Chris Lattner	fb849800ea	Add support for targets that require promotions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19579 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-16 00:37:38 +00:00
Chris Lattner	859157daee	Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19568 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-15 06:17:04 +00:00
Chris Lattner	69a52155d2	Adjust to CopyFromReg changes, implement deletion of truncating/extending stores/loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19562 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-14 22:38:01 +00:00
Chris Lattner	18c2f13e0f	Add new ImplicitDef node, rename CopyRegSDNode class to RegSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19535 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-13 20:50:02 +00:00
Chris Lattner	5a6c6d98d5	Don't forget the existing root. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19531 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-13 19:53:14 +00:00
Chris Lattner	ddb870b065	Codegen independent ops as being independent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19528 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-13 17:59:43 +00:00
Chris Lattner	7944d9d995	Add an option to view the selection dags as they are generated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19498 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-12 03:41:21 +00:00
Chris Lattner	f1fdacae8c	add an assertion, avoid creating copyfromreg/copytoreg pairs that are the same for PHI nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19484 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-11 22:03:46 +00:00
Chris Lattner	7041ee35ad	Turn memset/memcpy/memmove into the corresponding operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19463 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-11 05:56:49 +00:00
Chris Lattner	ee749d7488	Handle static alloca arguments to PHI nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19409 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-09 01:16:24 +00:00
Chris Lattner	39ae362279	Use new interfaces to correctly lower varargs and return/frame address intrinsics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19407 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-09 00:00:49 +00:00
Chris Lattner	64e14b1679	Add support for llvm.setjmp and longjmp. Only 3 SingleSource/UnitTests fail now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19404 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-08 22:48:57 +00:00
Chris Lattner	f26bc8ef48	Silence VS warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19384 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-08 19:52:31 +00:00
Chris Lattner	cf5734dddd	Adjust to changes in LowerCAllTo interfaces git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19374 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-08 19:26:18 +00:00
Chris Lattner	ae0aacb833	Add support for FP->INT conversions and back. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19369 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-08 08:08:56 +00:00
Chris Lattner	7cc4777a26	Implement support for long GEP indices on 32-bit archs and support for int GEP indices on 64-bit archs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19354 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-07 21:56:57 +00:00
Chris Lattner	f44fd88e9c	Fix handling of dead PHI nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19349 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-07 21:34:19 +00:00
Chris Lattner	1c08c714bb	Initial implementation of the SelectionDAGISel class. This contains most of the code for lowering from LLVM code to a SelectionDAG. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19331 91177308-0d34-0410-b5e6-96231b3b80d8	2005-01-07 07:47:53 +00:00

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783 Commits