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15672 Commits

Author SHA1 Message Date
Rafael Espindola
b47e1d033c add double <-> int conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30858 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 18:55:14 +00:00
Chris Lattner
55b5708b6b Fix another bug in extload promotion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30857 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 18:54:19 +00:00
Rafael Espindola
0d9fe764df compare doubles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30856 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 16:33:47 +00:00
Rafael Espindola
4b20fbc01d initial support for fp compares. Unordered compares not implemented yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30854 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 12:56:00 +00:00
Evan Cheng
62f2a3c7aa Fix a bug introduced by my LOAD/LOADX changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30853 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 07:51:21 +00:00
Evan Cheng
a275ecbd10 More isel time load folding checking for nodes that produce flag values. 
See comment in CanBeFoldedBy() for detailed explanation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30851 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-10 01:46:56 +00:00
Evan Cheng
f2ea84aadc Don't go too crazy with these AddComplexity. Try matching shufps with load 
folding first.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30848 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 21:42:15 +00:00
Evan Cheng
23425f5c74 Don't convert to MOVLP if using shufps etc. may allow load folding. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 21:39:25 +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
Rafael Espindola
2dc0f2b55c add float -> double and double -> float conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30835 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:50:29 +00:00
Reid Spencer
f63697de04 Fix PR886: 
The result of yyparse() was not being checked. When YYERROR or YYABORT is
called it causes yyparse() to return 1 to indicate the error. The code was
silently ignoring this situation because it previously expected either an
exception or a null ParserResult to indicate an error. The patch corrects
this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:36:59 +00:00
Chris Lattner
45d10470c9 Fix a bug pointed out by Zhongxing Xu 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:28:13 +00:00
Rafael Espindola
ecdb9f93c4 add ADDS and ADCS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30830 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 17:18:28 +00:00
Rafael Espindola
48bc9fbf19 expand ISD::SELECT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30829 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 16:28:33 +00:00
Rafael Espindola
5af3a686a7 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30828 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 14:18:33 +00:00
Rafael Espindola
ad557f9d11 expand ISD::EXTLOAD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30827 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 14:13:40 +00:00
Rafael Espindola
896f10c309 most ARM targets are little endian 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30826 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-09 14:12:15 +00:00
Chris Lattner
c836333c3b Implement SROA of unions with mixed pointers/integers in them. This implements 
PR892 and Transforms/ScalarRepl/union-pointer.ll:test2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30825 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-08 23:53:04 +00:00
Chris Lattner
5b121cc688 Implement Transforms/ScalarRepl/union-pointer.ll:test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30823 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-08 23:28:04 +00:00
Chris Lattner
6270f686b3 Eliminate more token factors by taking advantage of transitivity: 
if TF depends on A and B, and A depends on B, TF just needs to depend on
A.  With Jim's alias-analysis stuff enabled, this compiles the testcase in
PR892 into:

__Z4test3Val:
        subl $44, %esp
        call L__Z3foov$stub
        movl %edx, 28(%esp)
        movl %eax, 32(%esp)
        movl %eax, 24(%esp)
        movl %edx, 36(%esp)
        movl 52(%esp), %ecx
        movl %ecx, 4(%esp)
        movl %eax, 8(%esp)
        movl %edx, 12(%esp)
        movl 48(%esp), %eax
        movl %eax, (%esp)
        call L__Z3bar3ValS_$stub
        addl $44, %esp
        ret

instead of:

__Z4test3Val:
        subl $44, %esp
        call L__Z3foov$stub
        movl %eax, 24(%esp)
        movl %edx, 28(%esp)
        movl 24(%esp), %eax
        movl %eax, 32(%esp)
        movl 28(%esp), %eax
        movl %eax, 36(%esp)
        movl 32(%esp), %eax
        movl 36(%esp), %ecx
        movl 52(%esp), %edx
        movl %edx, 4(%esp)
        movl %eax, 8(%esp)
        movl %ecx, 12(%esp)
        movl 48(%esp), %eax
        movl %eax, (%esp)
        call L__Z3bar3ValS_$stub
        addl $44, %esp
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30821 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-08 22:57:01 +00:00
Jim Laskey
7138234baf Combiner alias analysis passes Multisource (release-asserts.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30818 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 23:37:56 +00:00
Chris Lattner
3a7cd951c1 completely disable folding of loads into scalar sse instructions and provide 
a framework for doing it right.  This fixes
CodeGen/X86/2006-10-07-ScalarSSEMiscompile.ll.

Once X86DAGToDAGISel::SelectScalarSSELoad is implemented right, this task
will be done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30817 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 21:55:32 +00:00
Chris Lattner
6f98773203 convert packed FP add/sub/mul/div to use a multiclass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30815 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 21:17:13 +00:00
Chris Lattner
941cc4561c one multiclass now defines all 8 variants of binary-scalar-sse-fp operations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30814 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 20:55:57 +00:00
Chris Lattner
d2c99d5f7a Switch ADD/MUL/DIV/SUB scalarsse fp ops to a multiclass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30813 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 20:35:44 +00:00
Chris Lattner
6970eda7ca Random acts of shrinkage 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30812 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:49:05 +00:00
Chris Lattner
a7ebe556c8 Convert pand/por/pxor to use multiclass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30811 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:37:30 +00:00
Chris Lattner
70f4f2e513 Convert some more instructions over to use a new multiclass. 
Fix a bug where the asmstring for PSUBQrm was wrong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30810 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:34:33 +00:00
Chris Lattner
5650eeb38e Fix a bug where PADDQrm printed paddd instead of paddq. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30809 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:15:46 +00:00
Chris Lattner
7c47f9a7ea Add multiclass for SSE2 instructions that correspond to simple binops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30808 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:14:49 +00:00
Chris Lattner
45e123c62a rename: 
PDI_binop_rm -> PDI_binop_rm_int
  PDI_binop_rmi -> PDI_binop_rmi_int

to make it clear that these are for use with intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30807 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 19:02:31 +00:00
Chris Lattner
d4060cc989 Convert saturating PADD/PSUB's to use a multiclass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30806 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 18:48:46 +00:00
Chris Lattner
8139e28a79 Convert PAVG*, PMADDWD, and PMUL* to use multiclasses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30805 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 18:39:00 +00:00
Chris Lattner
3dca490ff0 Fix typo in packsswb instr definition, where the load had the wrong type. 
This allows us to use the multiclass for other packs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30804 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 18:23:58 +00:00
Rafael Espindola
e5bbd6d753 implement FUITOS and FUITOD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 14:24:52 +00:00
Rafael Espindola
5aca927ae6 implement FLDD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30802 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 14:03:39 +00:00
Rafael Espindola
d9ae778125 implement fadds, faddd, fmuls and fmuld 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30801 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 13:46:42 +00:00
Chris Lattner
783d45ef14 handle pmin/pmax with multiclasses 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30800 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 07:49:33 +00:00
Chris Lattner
7733799464 simplify pack and shift intrinsics with multiclasses 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30797 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 07:06:17 +00:00
Chris Lattner
01998742c3 Use a multiclass to simplify 'SSE2 Integer comparison' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30796 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:47:08 +00:00
Chris Lattner
736c020fc8 move class defns close to uses to make it easier to read 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30795 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:33:36 +00:00
Chris Lattner
fb996ee727 simplify horizontal op definitions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30794 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:31:41 +00:00
Chris Lattner
3b57a833a5 remove more unneeded type info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30793 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:27:03 +00:00
Chris Lattner
aab370db24 remove unneeded definitions and type info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30792 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:19:41 +00:00
Chris Lattner
15258d5f9d remove some unneeded type info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30791 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 06:17:43 +00:00
Chris Lattner
845fb75536 simplify patterns by merging in operand info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30790 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:50:25 +00:00
Chris Lattner
d1b651d5de Factor operands into packed unary classes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30789 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:47:20 +00:00
Chris Lattner
dc5aa21b10 remove dead/duplicate instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30788 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:41:52 +00:00
Chris Lattner
a0ea63db75 Pull operand info up into parent class for scalar sse intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30787 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:26:13 +00:00
Chris Lattner
86c1b3a2fd convert the sole sd unary intrinsic to a multiclass for consistency 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30786 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:19:31 +00:00
Chris Lattner
3b8378552e pull operand string into the multiclass 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30785 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:13:26 +00:00
Chris Lattner
9498ed8ac9 Remove RSQRTSS[rm] RCPSS[rm], which are dead. 
Introduce SS_IntUnary, a multiclass to replace SS_Int[rm].


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30784 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 05:09:48 +00:00
Chris Lattner
4cc84edd3b eliminate redundancy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30783 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 04:52:09 +00:00
Chris Lattner
ed83a7019b Fix a bug legalizing zero-extending i64 loads into 32-bit loads. The bottom 
part was always forced to be sextload, even when we needed an zextload.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30782 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-07 00:58:36 +00:00
Chris Lattner
0c79fed5f9 Set the jt section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30781 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 22:52:33 +00:00
Chris Lattner
cf9668f23d initialize ivar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30780 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 22:52:08 +00:00
Chris Lattner
0336fdba85 If a target uses a GOT, put it in the jt data section, not the text 
section.  This will fix alpha when Andrew implements
AlphaTargetMachine::getTargetLowering().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30779 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 22:50:56 +00:00
Chris Lattner
111c2fa2a0 Alpha uses a got 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30778 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 22:46:51 +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
Chris Lattner
db3ea6754b print labels even if a MBB doesn't have a corresponding LLVM BB, just don't 
print the LLVM BB label.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30775 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 21:28:17 +00:00
Rafael Espindola
935b1f8fce add optional input flag to FMRRD 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30774 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 20:33:26 +00:00
Rafael Espindola
614057b843 add support for calling functions that return double 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30771 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 19:10:05 +00:00
Evan Cheng
3cff9f8947 80 col violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30770 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 18:57:51 +00:00
Chris Lattner
6e1f1fdd35 ugly codegen 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30769 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 17:39:34 +00:00
Chris Lattner
4bdd2753db Fix a miscompilation of: 
long long foo(long long X) {
  return (long long)(signed char)(int)X;
}

Instead of:

_foo:
        extsb r2, r4
        srawi r3, r4, 31
        mr r4, r2
        blr

we now produce:

_foo:
        extsb r4, r4
        srawi r3, r4, 31
        blr

This fixes a miscompilation in ConstantFolding.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30768 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 17:34:12 +00:00
Rafael Espindola
af1dabef35 fix some bugs affecting functions with no arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30767 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 17:26:30 +00:00
Rafael Espindola
1b5076887e fix the stack alignment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30766 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 14:29:47 +00:00
Rafael Espindola
4a408d46d4 add support for calling functions that have double arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30765 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 12:50:22 +00:00
Evan Cheng
a26eb5e1a7 Still need to support -mcpu=<> or cross compilation will fail. Doh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30764 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 09:17:41 +00:00
Evan Cheng
abc346ceda Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30763 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 08:21:07 +00:00
Evan Cheng
88c1578011 It appears the inline asm in GetCpuIDAndInfo() may clobbers some registers if it isn't inlined (at < -O3). Force it to be inlined. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30762 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 07:50:56 +00:00
Chris Lattner
5504602836 MachineBasicBlock::splice was incorrectly updating parent pointers on 
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30760 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-06 01:12:44 +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
ad071e1cd1 Add getStore() helper function to create ISD::STORE nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30758 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 22:57:11 +00:00
Chris Lattner
9c78ecb511 Don't crash if an MBB doesn't have an LLVM BB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30757 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 21:40:14 +00:00
Rafael Espindola
39b5a21259 use a const ref for passing the vector to ArgumentLayout 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30756 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 17:46:48 +00:00
Rafael Espindola
a284584352 implement a ArgumentLayout class to factor code common to LowerFORMAL_ARGUMENTS and LowerCALL 
implement FMDRR
add support for f64 function arguments


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30754 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 16:48:49 +00:00
Jim Laskey
bc588b8bbf Alias analysis code clean ups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30753 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 15:07:25 +00:00
Chris Lattner
867b99f845 add a new SimplifyDemandedVectorElts method, which works similarly to 
SimplifyDemandedBits.  The idea is that some operations can be simplified if
not all of the computed elements are needed.  Some targets (like x86) have a
large number of intrinsics that operate on a single element, but pass other
elts through unmodified.  If those other elements are not needed, the
intrinsics can be simplified to scalar operations, and insertelement ops can
be removed.

This turns (f.e.):

ushort %Convert_sse(float %f) {
        %tmp = insertelement <4 x float> undef, float %f, uint 0                ; <<4 x float>> [#uses=1]
        %tmp10 = insertelement <4 x float> %tmp, float 0.000000e+00, uint 1             ; <<4 x float>> [#uses=1]
        %tmp11 = insertelement <4 x float> %tmp10, float 0.000000e+00, uint 2           ; <<4 x float>> [#uses=1]
        %tmp12 = insertelement <4 x float> %tmp11, float 0.000000e+00, uint 3           ; <<4 x float>> [#uses=1]
        %tmp28 = tail call <4 x float> %llvm.x86.sse.sub.ss( <4 x float> %tmp12, <4 x float> < float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp37 = tail call <4 x float> %llvm.x86.sse.mul.ss( <4 x float> %tmp28, <4 x float> < float 5.000000e-01, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp37, <4 x float> < float 6.553500e+04, float 0.000000e+00, float 0.000000e+00, float 0.000000e+00 > )               ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> zeroinitializer )          ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

into:

ushort %Convert_sse(float %f) {
entry:
        %tmp28 = sub float %f, 1.000000e+00             ; <float> [#uses=1]
        %tmp37 = mul float %tmp28, 5.000000e-01         ; <float> [#uses=1]
        %tmp375 = insertelement <4 x float> undef, float %tmp37, uint 0         ; <<4 x float>> [#uses=1]
        %tmp48 = tail call <4 x float> %llvm.x86.sse.min.ss( <4 x float> %tmp375, <4 x float> < float 6.553500e+04, float undef, float undef, float undef > )           ; <<4 x float>> [#uses=1]
        %tmp59 = tail call <4 x float> %llvm.x86.sse.max.ss( <4 x float> %tmp48, <4 x float> < float 0.000000e+00, float undef, float undef, float undef > )            ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.x86.sse.cvttss2si( <4 x float> %tmp59 )              ; <int> [#uses=1]
        %tmp69 = cast int %tmp to ushort                ; <ushort> [#uses=1]
        ret ushort %tmp69
}

which improves codegen from:

_Convert_sse:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret

to:

_Convert_sse:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        movss LCPI1_2, %xmm1
        minss %xmm1, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret


This is just a first step, it can be extended in many ways.  Testcase here:
Transforms/InstCombine/vec_demanded_elts.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30752 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 06:55:50 +00:00
Chris Lattner
06a248c238 Add insertelement/extractelement helper ctors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30750 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 06:24:58 +00:00
Chris Lattner
1907a7b37b Lower some min/max idioms to minss/maxss when unsafe fp math is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30748 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 04:11:26 +00:00
Chris Lattner
a66ba5f70b Don't bother setting JumpTableTextSection, it is about to disappear 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30745 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 03:13:59 +00:00
Chris Lattner
e08d6e915e Emit pic jumptables to the same section that the function is emitted to, 
allowing label differences to work.  This fixes CodeGen/X86/pic_jumptable.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30744 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 03:13:28 +00:00
Chris Lattner
1da31ee472 Pass the MachineFunction into EmitJumpTableInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30742 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 03:01:21 +00:00
Chris Lattner
edad2b783f implement and use getSectionForFunction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30741 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:51:36 +00:00
Chris Lattner
6f6f69950f Use getSectionForFunction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30740 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:49:23 +00:00
Chris Lattner
29bd9e12d4 Use getSectionForFunction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30739 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:48:40 +00:00
Chris Lattner
6e79629dab use getSectionForFunction to decide which section to emit code into 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30738 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:47:13 +00:00
Chris Lattner
afbfdeddff Implement getSectionForFunction, use it when printing function body. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30737 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:43:52 +00:00
Chris Lattner
52f0670470 move getSectionForFunction to AsmPrinter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30736 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:42:47 +00:00
Chris Lattner
9b7ce7da82 Move getSectionForFunction to AsmPrinter, change it to return a string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30735 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 02:42:20 +00:00
Chris Lattner
b56dcc453e implement DarwinTargetAsmInfo::getSectionForFunction, use it when outputting 
function bodies


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30733 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 00:35:50 +00:00
Chris Lattner
f5b10ec509 Give TargetAsmInfo a virtual dtor, add a new getSectionForFunction method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30732 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 00:35:16 +00:00
Chris Lattner
fea13d33e5 emit jump table before debug info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30731 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 00:26:05 +00:00
Chris Lattner
37dfa02788 Always emit the jump table after the function so it's part of the same 'atom' 
as the function body.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30730 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-05 00:24:46 +00:00
Chris Lattner
df20b96ffd getFilename/getDirectory shouldn't abort if the global has no init. This 
can happen on bugpoint reduced testcases f.e..


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30729 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 23:06:26 +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
c055a9191f Fix a static dtor issue 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30726 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 22:13:11 +00:00
Chris Lattner
90aa839c88 Fix more static dtor issues 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30725 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 21:52:35 +00:00
Chris Lattner
b336409673 Fix some more static dtor issues. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30724 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 21:49:37 +00:00
Evan Cheng
e111303408 Added option -disable-x86-shuffle-opti to disable X86 specific vector shuffle optimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30723 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 18:33:38 +00:00
Evan Cheng
8e0055de8a Formating. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30722 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 18:33:00 +00:00
Jim Laskey
6ff23e5e84 More extensive alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30721 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 16:53:27 +00:00
Jim Laskey
0c0feb9d5f More long term solution 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30720 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 10:40:15 +00:00
Chris Lattner
83e6c9925e Pattern match min/max nodes when we have sse. This implements 
CodeGen/X86/scalar_sse_minmax.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30719 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 06:57:07 +00:00
Chris Lattner
68e8b9e775 add a note :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30717 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 05:52:13 +00:00
Chris Lattner
3a15503c82 This case isn't implemented yet. It seems unlikely to be needed, but if it 
ever is, we want to get an assert instead of silent bad codegen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30716 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 04:58:58 +00:00
Jim Laskey
0f77fe5ea6 Work around for some problems with templates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30715 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 01:43:13 +00:00
Evan Cheng
c548428c5d Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an 
extra operand to LOADX to specify the exact value extension type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30714 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-04 00:56:09 +00:00
Chris Lattner
faf1daeb92 Use $( $| $) to represent alternatives in asm blocks instead of {|}. This 
is needed to support targets where {|} aren't special symbols.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30712 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 23:27:09 +00:00
Evan Cheng
bf497a3a68 Fix an obvious typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30711 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 23:08:27 +00:00
Chris Lattner
f28bbda2c6 Bugfixes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30709 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 20:19:23 +00:00
Chris Lattner
ee773ba72b Print the MBB ID # along with the bb tag in the -print-machine-instrs output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30708 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 20:17:24 +00:00
Chris Lattner
e70cab0ca4 Provide a function that ensures MBB numbering is dense and inorder. This 
can be used by MachineFunctionPasses who need this property.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30706 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 19:18:57 +00:00
Nick Lewycky
f938099aa1 Simplify logic further. 
Ensure that we copy KnownProperties before calling visitBasicBlock, else
we may leak properties into blocks where they don't belong.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30705 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 17:36:01 +00:00
Rafael Espindola
cd71da5cf0 Implement floating point constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30704 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 17:27:58 +00:00
Chris Lattner
13bf6c1350 Fix PR933 and CodeGen/X86/2006-10-02-BoolRetCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30703 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 17:18:42 +00:00
Nick Lewycky
a73a654bb4 Simplify, now that predsimplify depends on break-crit-edges. 
Fix SwitchInst where dest-block is the same as one of the cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30700 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 15:19:11 +00:00
Nick Lewycky
5c8c5d9ace Move break-crit-edges before the predicate simplifier. Allows us to 
optimize in more cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30699 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 14:52:23 +00:00
Evan Cheng
99435d32b3 Revert previous patch. Still breaking things. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30698 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:26:07 +00:00
Bill Wendling
f7da4e939f Fix for PR929. The PHI nodes were being gone through for each instruction 
in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30697 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:20:20 +00:00
Chris Lattner
86f7b2100c Fix PR932 and Analysis/Dominators/2006-10-02-BreakCritEdges.ll: 
The critical edge block dominates the dest block if the destblock dominates
all edges other than the one incoming from the critical edge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30696 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 07:02:02 +00:00
Evan Cheng
485130fbf4 These don't have immediate operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30694 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-03 06:55:11 +00:00
Rafael Espindola
9e071f0ae3 fix the names of the 64bit fp register 
initial support for returning 64bit floating point numbers


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30692 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-02 19:30:56 +00:00
Jim Laskey
01078fb7ec Debugging kruft 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30688 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-02 13:01:17 +00:00
Jim Laskey
ec20402c90 Add ability to annotate (color) nodes in a viewGraph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30686 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-02 12:26:53 +00:00
Chris Lattner
39d78d623a Fixme is already done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30685 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-01 22:46:33 +00:00
Chris Lattner
ab38358fa0 Teach globalsmodref-aa to track scalar pointer global variables which point 
to unaliased allocations.  Use this information to disambiguate pointers loaded
from them.  This is a very common case, so it's worthwhile to handle efficiently.

This implements Analysis/GlobalsModRef/indirect-global.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30684 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-01 22:36:45 +00:00
Chris Lattner
e831b9a48b Fix a bug from r1.391 of this file, where we checked the size instead of 
the alignment when promoting allocations.  This implements
InstCombine/cast.ll:test32


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30682 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-10-01 19:40:58 +00:00
Chris Lattner
596721f0d7 Fix debug output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30680 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 23:32:50 +00:00
Chris Lattner
8639503abe Implement SRA of heap allocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30679 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 23:32:09 +00:00
Chris Lattner
adc95467e4 Add a version of the globalvariable ctor that inserts at a specific location. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30677 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 21:31:26 +00:00
Chris Lattner
cff1673182 Add some ifdef'd out debug info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30676 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-30 19:40:30 +00:00
Evan Cheng
71f84de79b Not needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30674 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-29 22:05:10 +00:00
Rafael Espindola
27185190e6 add floating point registers 
implement SINT_TO_FP


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30673 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-29 21:20:16 +00:00
Chris Lattner
151880b020 Define this in the correct n/s 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30671 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-29 18:43:14 +00:00
Chris Lattner
ab4fa4f377 Minor cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30668 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:45:00 +00:00
Chris Lattner
de65fb3a8b Now that ConstantBool::True/False are gone, we can modify Type.cpp to 
eliminate its static dtors, without having code that depends on order of
initialization.  Eliminate static ctors/dtors from Type.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30667 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:38:07 +00:00
Chris Lattner
003cbf35f4 Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30666 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:36:21 +00:00
Chris Lattner
47811b76ca Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30665 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:35:22 +00:00
Chris Lattner
850ba99cb6 Eliminate ConstantBool::True and ConstantBool::False. Instead, provideConstantBool::getTrue() and ConstantBool::getFalse(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30664 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:34:49 +00:00
Chris Lattner
6458f1807d update comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30663 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:33:12 +00:00
Chris Lattner
7be164c0ea wrap long lines 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30662 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:32:43 +00:00
Chris Lattner
33ce777c4d Simplify some code, reformat break's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30660 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:19:29 +00:00
Chris Lattner
f8f791ef1e simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30659 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:17:41 +00:00
Chris Lattner
193c2d886f Simplify some code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30658 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:14:29 +00:00
Owen Anderson
3295471846 Another attempt at making ArgPromotion smarter. This patch no longer breaks Burg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30657 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 23:02:22 +00:00
Chris Lattner
40d31ecb29 simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30656 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 22:58:25 +00:00
Chris Lattner
9fb471df2e simplify code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30655 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 22:50:29 +00:00
Chris Lattner
7c395ad06f Shift amounts are always 32-bits, even in 64-bit mode. This fixes 
CodeGen/PowerPC/2006-09-28-shift_64.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30652 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 20:48:45 +00:00
Reid Spencer
5b7e753d95 Fix PR902: 
Errors are generated with the YYERROR macro which can only be called from
a production (inside yyparse) because of the goto statement in the macro.
This lead to several situations where GEN_ERROR was not called but
GenerateError was used instead (because it doesn't use YYERROR). However,
in such situations, catching the error much later (e.g. at the end of
the production) is not sufficient because LLVM can assert on invalid data
before the end of the production is reached. The solution is to ensure that
the CHECK_FOR_ERROR macro (which invokes YYERROR if there's an error) is
used as soon as possible after a call to GenerateError has been made.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30650 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 19:28:24 +00:00
Evan Cheng
5feaa9a707 TargetRegisterClass specifies the desired spill alignment. However, it cannot be honored if stack alignment is smaller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30648 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 18:52:32 +00:00
Bill Wendling
ca756d2cf9 "Once more into the breach, dear friends, once more, or fill the wall up 
with our English dead."

No! Really! Serious this time...It was how the vreg uses were being
adjusted that was causing hte Olden tests to fail. I corrected this and
the Olden and Regression tests all passed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30644 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 07:10:24 +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
Chris Lattner
f308ea01d5 add a note about a general improvement to the code generator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30642 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 06:01:17 +00:00
Chris Lattner
f6e70fa0d3 remove reference to dead method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30641 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:38:19 +00:00
Chris Lattner
8a94bf142a Use the new ManagedStatic class to explicitly manage static variables, eliminating static ctors/dtors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30639 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:35:06 +00:00
Chris Lattner
771cbf30bc new helper class to provide more explicit management of static ctor/dtors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30638 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:31:55 +00:00
Chris Lattner
8af24b86a8 re-re-revert this, back to the right revision. It currently breaks bisort/mst 
in olden among others.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30637 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:11:54 +00:00
Evan Cheng
c2b4ec37de PEI now place callee save spills closest to the address pointed to by the 
incoming stack. This allows X86 backend to use push / pop in epilogue /
prologue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30636 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:10:27 +00:00
Chris Lattner
31cefb9943 re-revert this patch, bisort and mst are still broken in Olden. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30634 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-28 00:04:21 +00:00
Bill Wendling
4da1abb311 Reapplying this patch. With the newest commits, the error in Olden/bisort 
has disappeared.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30633 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 22:37:35 +00:00
Chris Lattner
f38f543e01 silence warnings in release build 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30631 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 18:29:38 +00:00
Devang Patel
79db5b7370 Fix DFS walk. 
Fix http://llvm.org/bugs/show_bug.cgi?id=923


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30630 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 17:18:05 +00:00
Chris Lattner
6c88e9b458 Temporarily revert this. This breaks Olden/bisort on PPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30628 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 16:59:16 +00:00
Bill Wendling
c36f2a4cea PR878: Instead of calculating the vreg to PHI use count everytime we get 
a function, do it up front in linear time (going through all of the
instructions once). We create a map out of them. Then it's no problem to
use the information in it during elimination...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30624 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 09:04:15 +00:00
Chris Lattner
7514437133 set DEBUG_TYPE right 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30623 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 04:58:23 +00:00
Chris Lattner
5468966614 Use abstract private/comment directives, to increase portability to ppc/linux 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30621 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 02:55:21 +00:00
Chris Lattner
bae02cfd46 Add support for ${:private} which prints "L" on darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30620 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-27 00:06:07 +00:00
Chris Lattner
3ce9b67e0c Add support for ${:comment}, which expands to the current target's comment 
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30619 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 23:59:50 +00:00
Evan Cheng
692d4e0823 Rename function. It's determining which callee-save registers to save. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30616 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 22:29:31 +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
Jim Laskey
bb1518585b Load chain check is not needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30613 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 17:44:58 +00:00
Jim Laskey
79597d2af6 Chain can be any operand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30611 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 09:32:41 +00:00
Jim Laskey
3dd1170616 Wrong size for load 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30610 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 08:14:06 +00:00
Jim Laskey
172585b3aa Can't move a load node if it's chain is not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30609 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 07:37:42 +00:00
Chris Lattner
e87e1154a1 Various random and minor code cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30608 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:57:53 +00:00
Chris Lattner
681764b20c print the preds of each MBB 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30606 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:41:59 +00:00
Chris Lattner
a53115b4c2 Compile: 
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30605 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:39:53 +00:00
Chris Lattner
cb05af852f Add support for targets that want to do something with the llvm.used list, 
because they have an aggressive linker that does dead code stripping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30604 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-26 03:38:18 +00:00
Jim Laskey
14fbcbfa2b Accidental enable of bad code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30601 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 21:11:32 +00:00
Jim Laskey
288af5e740 Fix chain dropping in load and drop unused stores in ret blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30600 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 19:32:58 +00:00
Chris Lattner
fb981f3fee more notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30598 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 17:12:14 +00:00
Jim Laskey
279f053eae Core antialiasing for load and store. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30597 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-25 16:29:54 +00:00
Andrew Lenharth
0607a2f554 Fix jump tables to match gcc (and the ABI and whatnot) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30594 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-24 19:46:56 +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
Andrew Lenharth
d044d6ee2c jump table note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30591 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-24 13:13:10 +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
Nick Lewycky
8f389d8cd4 Style changes only. Remove dead code, fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30588 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-23 15:13:08 +00:00
Chris Lattner
120fce5540 Be far more careful when splitting a loop header, either to form a preheader 
or when splitting loops with a common header into multiple loops.  In particular
the old code would always insert the preheader before the old loop header.  This
is disasterous in cases where the loop hasn't been rotated.  For example, it can
produce code like:

        .. outside the loop...
        jmp LBB1_2      #bb13.outer
LBB1_1: #bb1
        movsd 8(%esp,%esi,8), %xmm1
        mulsd (%edi), %xmm1
        addsd %xmm0, %xmm1
        addl $24, %edi
        incl %esi
        jmp LBB1_3      #bb13
LBB1_2: #bb13.outer
        leal (%edx,%eax,8), %edi
        pxor %xmm1, %xmm1
        xorl %esi, %esi
LBB1_3: #bb13
        movapd %xmm1, %xmm0
        cmpl $4, %esi
        jl LBB1_1       #bb1

Note that the loop body is actually LBB1_1 + LBB1_3, which means that the
loop now contains an uncond branch WITHIN it to jump around the inserted
loop header (LBB1_2).  Doh.

This patch changes the preheader insertion code to insert it in the right
spot, producing this code:

        ... outside the loop, fall into the header ...
LBB1_1: #bb13.outer
        leal (%edx,%eax,8), %esi
        pxor %xmm0, %xmm0
        xorl %edi, %edi
        jmp LBB1_3      #bb13
LBB1_2: #bb1
        movsd 8(%esp,%edi,8), %xmm0
        mulsd (%esi), %xmm0
        addsd %xmm1, %xmm0
        addl $24, %esi
        incl %edi
LBB1_3: #bb13
        movapd %xmm0, %xmm1
        cmpl $4, %edi
        jl LBB1_2       #bb1

Totally crazy, no branch in the loop! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30587 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-23 08:19:21 +00:00
Chris Lattner
c3984578be Teach UpdateDomInfoForRevectoredPreds to handle revectored preds that are not 
reachable, making it general purpose enough for use by InsertPreheaderForLoop.
Eliminate custom dominfo updating code in InsertPreheaderForLoop, using
UpdateDomInfoForRevectoredPreds instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30586 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-23 07:40:52 +00:00
Chris Lattner
a71965b1ad add method, correct comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30584 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-23 04:03:45 +00:00
Evan Cheng
f10c17f986 Delete dead code; fix 80 col violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30583 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-22 21:43:59 +00:00
Rafael Espindola
75645496fa add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30581 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-22 11:36:17 +00:00
Nate Begeman
f42f133938 Fold AND and ROTL more often 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30577 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-22 05:01:56 +00:00
Devang Patel
b71f6728eb remove extra white spaces. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30576 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-22 01:07:57 +00:00
Devang Patel
8d3ab25335 Use iterative algorith to assign DFS number. This reduces 
call stack depth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30575 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-22 01:05:33 +00:00
Evan Cheng
2adffa1f66 Make it work for DAG combine of multi-value nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30573 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 19:04:05 +00:00
Jim Laskey
516b0eacff core corrections 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30570 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 17:35:47 +00:00
Jim Laskey
d1aed7aaf7 Basic "in frame" alias analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30568 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 16:28:59 +00:00
Rafael Espindola
ebdabda708 more condition codes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30567 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 13:06:26 +00:00
Rafael Espindola
7246d33e2a if a constant can't be an immediate, add it to the constant pool 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30566 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 11:29:52 +00:00
Chris Lattner
0e4b922680 fold (aext (and (trunc x), cst)) -> (and x, cst). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30561 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 06:40:43 +00:00
Chris Lattner
bf3708794f Check the right value type. This fixes 186.crafty on x86 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 06:17:39 +00:00
Chris Lattner
b13f83eb23 implemented 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30559 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 06:14:54 +00:00
Chris Lattner
111c228241 Compile: 
int %test(ulong *%tmp) {
        %tmp = load ulong* %tmp         ; <ulong> [#uses=1]
        %tmp.mask = shr ulong %tmp, ubyte 50            ; <ulong> [#uses=1]
        %tmp.mask = cast ulong %tmp.mask to ubyte
        %tmp2 = and ubyte %tmp.mask, 3          ; <ubyte> [#uses=1]
        %tmp2 = cast ubyte %tmp2 to int         ; <int> [#uses=1]
        ret int %tmp2
}

to:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        andl $3, %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        movl 4(%eax), %eax
        shrl $18, %eax
        # TRUNCATE movb %al, %al
        andb $3, %al
        movzbl %al, %eax
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30558 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 06:14:31 +00:00
Chris Lattner
6007b84a5b Generalize (zext (truncate x)) and (sext (truncate x)) folding to work when 
the src/dst are not the same size.  This catches things like "truncate
32-bit X to 8 bits, then zext to 16", which happens a bit on X86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30557 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 06:00:20 +00:00
Chris Lattner
60e32b0776 Fit in 80-cols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30556 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 05:46:00 +00:00
Chris Lattner
9ba46c13bf Fix Transforms/IndVarsSimplify/2006-09-20-LFTR-Crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30555 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 05:12:20 +00:00
Nick Lewycky
70084fd53a Fix compile error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30553 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 02:08:31 +00:00
Nick Lewycky
009aa1d485 Don't rewrite ConstantExpr::get. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30552 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-21 01:05:35 +00:00
Nick Lewycky
af2f1fe94e Once we're down to "setcc type constant1, constant2", at least come up 
with the right answer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30550 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 23:02:24 +00:00
Anton Korobeynikov
f824868ed9 Adding codegeneration for StdCall & FastCall calling conventions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30549 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 22:03:51 +00:00
Andrew Lenharth
c459bbf0fd Account for pseudo-ops correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30548 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 20:08:52 +00:00
Chris Lattner
4da1c82f72 The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass 
should create the right asmprinter subclass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30542 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 17:12:19 +00:00
Chris Lattner
dadceedbdb Wrap some darwin'isms with isDarwin checks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30541 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 17:07:15 +00:00
Nick Lewycky
406fc0cb49 Use a total ordering to compare instructions. 
Fixes infinite loop in resolve().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30540 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 17:04:01 +00:00
Andrew Lenharth
4563326472 simplify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30535 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 15:37:57 +00:00
Andrew Lenharth
6b634037b3 catch constants more often 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30534 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 15:05:49 +00:00
Andrew Lenharth
886f98e6f9 clarify with test case 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30531 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 14:48:00 +00:00
Andrew Lenharth
0b78f3e4b4 Add Note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30530 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 14:40:01 +00:00
Chris Lattner
f142713a30 item done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30518 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 06:41:56 +00:00
Chris Lattner
e3152e54b5 Compile: 
int test3(int a, int b) { return (a < 0) ? a : 0; }

to:

_test3:
        srawi r2, r3, 31
        and r3, r2, r3
        blr

instead of:

_test3:
        cmpwi cr0, r3, 1
        li r2, 0
        blt cr0, LBB2_2 ;entry
LBB2_1: ;entry
        mr r3, r2
LBB2_2: ;entry
        blr


This implements: PowerPC/select_lt0.ll:seli32_a_a


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30517 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 06:41:35 +00:00
Chris Lattner
7e932de7f5 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30515 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 06:32:10 +00:00
Chris Lattner
84750587bf Fold the full generality of (any_extend (truncate x)) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30514 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 06:29:17 +00:00
Chris Lattner
5f42a240ba Two things: 
1. teach SimplifySetCC that '(srl (ctlz x), 5) == 0' is really x != 0.
2. Teach visitSELECT_CC to use SimplifySetCC instead of calling it and
   ignoring the result.  This allows us to compile:

bool %test(ulong %x) {
  %tmp = setlt ulong %x, 4294967296
  ret bool %tmp
}

to:

_test:
        cntlzw r2, r3
        cmplwi cr0, r3, 1
        srwi r2, r2, 5
        li r3, 0
        beq cr0, LBB1_2 ;
LBB1_1: ;
        mr r3, r2
LBB1_2: ;
        blr

instead of:

_test:
        addi r2, r3, -1
        cntlzw r2, r2
        cntlzw r3, r3
        srwi r2, r2, 5
        cmplwi cr0, r2, 0
        srwi r2, r3, 5
        li r3, 0
        bne cr0, LBB1_2 ;
LBB1_1: ;
        mr r3, r2
LBB1_2: ;
        blr

This isn't wonderful, but it's an improvement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30513 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 06:19:26 +00:00
Chris Lattner
ac924c8248 This is already done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30512 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 04:59:33 +00:00
Chris Lattner
b8456460cb We went through all that trouble to compute whether it was safe to transform 
this comparison, but never checked it.  Whoops, no wonder we miscompiled
177.mesa!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30511 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 04:44:59 +00:00
Chris Lattner
711762497c Improve PPC64 equality comparisons like PPC32 comparisons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30510 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 04:33:27 +00:00
Chris Lattner
3836dbd3bd Two improvements: 
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30509 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 04:25:47 +00:00
Chris Lattner
cc96ac3a7d Add a note that we should match rlwnm better 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30508 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 03:59:25 +00:00
Chris Lattner
3fe6c1d389 Legalize is no longer limited to cleverness with just constant shift amounts. 
Allow it to be clever when possible and fall back to the gross code when needed.

This allows us to compile:

long long foo1(long long X, int C) {
  return X << (C|32);
}
long long foo2(long long X, int C) {
  return X << (C&~32);
}

to:
_foo1:
        rlwinm r2, r5, 0, 27, 31
        slw r3, r4, r2
        li r4, 0
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        slw r3, r3, r2
        srw r5, r4, r5
        or r3, r3, r5
        slw r4, r4, r2
        blr

instead of:

_foo1:
        ori r2, r5, 32
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30507 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 03:47:40 +00:00
Chris Lattner
0ea26ca45b Expand 64-bit shifts more optimally if we know that the high bit of the 
shift amount is one or zero.  For example, for:

long long foo1(long long X, int C) {
  return X << (C|32);
}

long long foo2(long long X, int C) {
  return X << (C&~32);
}

we get:

_foo1:
        movb $31, %cl
        movl 4(%esp), %edx
        andb 12(%esp), %cl
        shll %cl, %edx
        xorl %eax, %eax
        ret
_foo2:
        movb $223, %cl
        movl 4(%esp), %eax
        movl 8(%esp), %edx
        andb 12(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        ret

instead of:

_foo1:
        subl $4, %esp
        movl %ebx, (%esp)
        movb $32, %bl
        movl 8(%esp), %eax
        movl 12(%esp), %edx
        movb %bl, %cl
        orb 16(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        xorl %ecx, %ecx
        testb %bl, %bl
        cmovne %eax, %edx
        cmovne %ecx, %eax
        movl (%esp), %ebx
        addl $4, %esp
        ret
_foo2:
        subl $4, %esp
        movl %ebx, (%esp)
        movb $223, %cl
        movl 8(%esp), %eax
        movl 12(%esp), %edx
        andb 16(%esp), %cl
        shldl %cl, %eax, %edx
        shll %cl, %eax
        xorl %ecx, %ecx
        xorb %bl, %bl
        testb %bl, %bl
        cmovne %eax, %edx
        cmovne %ecx, %eax
        movl (%esp), %ebx
        addl $4, %esp
        ret


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30506 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 03:38:48 +00:00
Evan Cheng
571c15e38a Back out Chris' last set of changes. This breaks 177.mesa and povray somehow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30505 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 01:39:40 +00:00
Evan Cheng
7df4ad9a7f 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30504 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-20 01:10:02 +00:00
Andrew Lenharth
16d7955eb0 If we have an add, do it in the pointer realm, not the int realm. This is critical in the linux kernel for pointer analysis correctness 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30496 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 18:24:51 +00:00
Chris Lattner
2b41b8e870 Fix UnitTests/2005-05-12-Int64ToFP.c with llc-beta. In particular, do not 
allow it to go into an infinite loop, filling up the disk!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30494 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 18:02:01 +00:00
Rafael Espindola
4d4c021758 fix header 
add comments
untabify


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30486 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 16:41:40 +00:00
Rafael Espindola
71f3b94fa8 Implement a MachineFunctionPass to fix the mul instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30485 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 15:49:25 +00:00
Chris Lattner
f529b08c0d item done 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30483 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 06:19:03 +00:00
Chris Lattner
733f576d29 implement select.ll:test19-22 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30482 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 06:18:21 +00:00
Chris Lattner
cf9d0acfef Fold the PPCISD shifts when presented with 0 inputs. This occurs for code 
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30479 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 05:22:59 +00:00
Chris Lattner
863ac769b8 Fold extract_element(cst) to cst 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30478 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 05:02:39 +00:00
Chris Lattner
5c6621c3bc Minor speedup for legalize by avoiding some malloc traffic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30477 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-19 04:51:23 +00:00
Evan Cheng
6b5578f052 Fix a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30474 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 23:28:33 +00:00
Evan Cheng
52cc1ea2a1 Allow i32 UDIV, SDIV, UREM, SREM to be expanded into libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30470 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 21:49:04 +00:00
Nick Lewycky
025f4c0fad Walk down the dominator tree instead of the control flow graph. That means 
that we can't modify the CFG any more, at least not until it's possible
to update the dominator tree (PR217).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30469 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 21:09:35 +00:00
Andrew Lenharth
2ab804c607 A pass to remove the worst of the replay trap offenders, and as a bonus, align basic blocks when it is free to do so 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30467 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 19:44:29 +00:00
Chris Lattner
6d7ca92bbf Fix an infinite loop building the CFE 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30465 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:27:05 +00:00
Andrew Lenharth
ea4f9d5801 Jump tables on Alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30463 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:01:03 +00:00
Andrew Lenharth
303c6222a4 oops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30462 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 18:00:18 +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
Jim Laskey
e85fb6719a Sort out mangled names for globals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30460 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 14:47:26 +00:00
Chris Lattner
4af90abc13 Implement a trivial optzn: of vastart is never called in a function that takes 
... args, remove the '...'.

This is Transforms/DeadArgElim/dead_vaargs.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30459 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 07:02:31 +00:00
Chris Lattner
f73fb88688 add a note. Our 64-bit shifts are ~30% slower than gcc's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30457 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 05:36:54 +00:00
Chris Lattner
e695a3bd32 Implement InstCombine/cast.ll:test31. This speeds up 462.libquantum by 26%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30456 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 05:27:43 +00:00
Chris Lattner
79bc332ddb add a helper method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30452 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:54:57 +00:00
Chris Lattner
b33a42a21f This is closer to what we really want. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30451 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:54:35 +00:00
Chris Lattner
b7363791ed Implement Transforms/InstCombine/shift-sra.ll:test0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30450 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:31:40 +00:00
Chris Lattner
65b72baa59 Rewrite shift/and/compare sequences to promote better licm of the RHS. 
Use isLogicalShift/isArithmeticShift to simplify code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30448 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-18 04:22:48 +00:00
Anton Korobeynikov
bcb9770efe Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30446 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 20:25:45 +00:00
Chris Lattner
2f463865c2 Add ShiftInst::isLogical/ArithmeticShift methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30445 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 19:29:56 +00:00
Chris Lattner
a5b07404f7 Add new SetCondInst::isRelational/isEquality methods. Rename 
Instruction::isRelational to Instruction::isComparison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30444 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 19:14:47 +00:00
Nick Lewycky
e81f725b3a Explain change with a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30443 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 17:51:00 +00:00
Nick Lewycky
38c7c42a32 Fix PR912. The input to erase() must not be a reference to the data 
being erased.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30442 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 16:23:36 +00:00
Anton Korobeynikov
93c2b37340 Small fixes for supporting dll* linkage types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30441 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-17 13:06:18 +00:00
Chris Lattner
7ed96abc09 add a note noticed through source inspection 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30418 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 23:57:51 +00:00
Chris Lattner
8829dc88a8 Oh yeah, this is needed too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30407 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 05:08:34 +00:00
Chris Lattner
88640b5ecd add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30406 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 03:30:19 +00:00
Chris Lattner
f6bd07c7fe Fix Transforms/InstCombine/2006-09-15-CastToBool.ll and PR913 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30405 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 03:14:10 +00:00
Chris Lattner
a89654b1a1 simplify control flow, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30403 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 00:21:44 +00:00
Chris Lattner
7d7bffe157 Allow custom expand of mul 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30402 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-16 00:09:24 +00:00
Chris Lattner
cbce2f6c1b add a nate note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30399 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 20:31:36 +00:00
Chris Lattner
94876527af revert previous two patches. They cause miscompilation of MultiSource/Applications/Burg 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30397 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 17:24:45 +00:00
Owen Anderson
46f022a7f1 Revert my previous work on ArgumentPromotion. Further investigation has revealed these 
changes to be incorrect.  They just weren't showing up in any of our current testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30385 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 05:22:51 +00:00
Chris Lattner
c6336273d9 Unbreak the JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30384 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-15 04:56:11 +00:00
Chris Lattner
428b92eb83 Keep track of the start of MBB's in a separate map from instructions. This 
is faster and is needed for future improvements.


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 2006-09-15 03:57:23 +00:00
Evan Cheng
c45a2c72cc Remove a unnecessary check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30382 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 23:55:02 +00:00
Devang Patel
697e590580 Undo previous check-in. 
Reintroduce recursive assignDFSNumber().


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 2006-09-14 21:43:24 +00:00
Chris Lattner
1ec72738ac Fold (X & C1) | (Y & C2) -> (X|Y) & C3 when possible. 
This implements CodeGen/X86/and-or-fold.ll


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 2006-09-14 21:11:37 +00:00
Chris Lattner
f0613e1e7c add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30377 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 20:56:30 +00:00
Chris Lattner
516b962b5a Split rotate matching code out to its own function. Make it stronger, by 
matching things like ((x >> c1) & c2) | ((x << c3) & c4) to (rot x, c5) & c6


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30376 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 20:50:57 +00:00
Anton Korobeynikov
43e3aad6af Adding generated files for the last commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30375 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 18:25:26 +00:00
Anton Korobeynikov
b74ed07bfd Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.


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 2006-09-14 18:23:27 +00:00
Evan Cheng
a17cf0a7e2 Use getOffset() instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30327 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 07:41:12 +00:00
Evan Cheng
d5a99d7810 Use MachineConstantPoolEntry getOffset() and getType() accessors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30326 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 07:35:00 +00:00
Chris Lattner
5f1d01393c Use new config.h macro 
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 2006-09-14 06:21:59 +00:00
Chris Lattner
26b6c0ba5d On Mac OS/X, make Process::PreventCoreFiles disable crash reporter for 
the process in addition to disabling core file emission.  This speeds up
bugpoint on default-configured macs by several orders of magnitude.


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 2006-09-14 06:01:41 +00:00
Evan Cheng
9abd7c3867 A MachineConstantPool may have mixed Constant* and MachineConstantPoolValue* values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30316 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-14 05:50:57 +00:00
Devang Patel
57d12f962d Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h


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 2006-09-14 01:27:42 +00:00
Chris Lattner
08c33011d1 add note about switch lowering 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30308 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 23:37:16 +00:00
Chris Lattner
a4646b61e4 Second half of the fix for Transforms/Inline/inline_cleanup.ll 
This folds unconditional branches that are often produced by code
specialization.


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 2006-09-13 21:27:00 +00:00
Nick Lewycky
668a1d0fd2 Add some more consistency checks. 
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 2006-09-13 19:32:53 +00:00
Nick Lewycky
977be254c6 Fix unionSets so that it can merge correctly. 
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 2006-09-13 19:24:01 +00:00
Chris Lattner
33bb3c8be3 Implement the first half of Transforms/Inline/inline_cleanup.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30303 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 19:23:57 +00:00
Evan Cheng
80543c8305 Skip over first operand when determining REX prefix for two-address code. 
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 2006-09-13 19:07:28 +00:00
Nick Lewycky
cf2112a0a0 Erase dead instructions. 
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 2006-09-13 18:55:37 +00:00
Chris Lattner
bfd68a7858 Turn X < 0 -> TEST X,X js 
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 2006-09-13 17:04:54 +00:00
Chris Lattner
7a6366de86 The sense of this branch was inverted :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30293 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 16:56:12 +00:00
Chris Lattner
8a650095fc Fix a ton of jit failures 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30292 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-09-13 16:21:10 +00:00