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e98815469c
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3055 Commits

Author SHA1 Message Date
Devang Patel
e98815469c Do not create new pre-header. Reuse original pre-header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35825 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 19:04:21 +00:00
Devang Patel
4522c8a44c Simpler for() loops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35822 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 17:09:13 +00:00
Devang Patel
cfde9594d1 Fix future bug. Of course, Chris spotted this. 
Handle Argument or Undef as an incoming PHI value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35821 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 16:41:46 +00:00
Devang Patel
24a1c49172 More cosmetic changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35820 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 16:21:29 +00:00
Devang Patel
322313376a Only cosmetic changes. Zero functionality Change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35819 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 16:11:48 +00:00
Chris Lattner
8546409d1b Fix PR1304 and Transforms/InstCombine/2007-04-08-SingleEltVectorCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 01:37:55 +00:00
Chris Lattner
599ded1a7f Eliminate useless insertelement instructions. This implements 
Transforms/InstCombine/vec_insertelt.ll and fixes PR1286.

We now compile the code from that bug into:

_foo:
        movl 4(%esp), %eax
        movdqa (%eax), %xmm0
        movl 8(%esp), %ecx
        psllw (%ecx), %xmm0
        movdqa %xmm0, (%eax)
        ret

instead of:

_foo:
        subl $4, %esp
        movl %ebp, (%esp)
        movl %esp, %ebp
        movl 12(%ebp), %eax
        movdqa (%eax), %xmm0
        #IMPLICIT_DEF %eax
        pinsrw $2, %eax, %xmm0
        xorl %ecx, %ecx
        pinsrw $3, %ecx, %xmm0
        pinsrw $4, %eax, %xmm0
        pinsrw $5, %ecx, %xmm0
        pinsrw $6, %eax, %xmm0
        pinsrw $7, %ecx, %xmm0
        movl 8(%ebp), %eax
        movdqa (%eax), %xmm1
        psllw %xmm0, %xmm1
        movdqa %xmm1, (%eax)
        movl %ebp, %esp
        popl %ebp
        ret

woo :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 01:11:16 +00:00
Owen Anderson
558fc740da Cleanup some from my DomSet-removal changes. Add a new 
isReachableFromEntry
test to ETForest to factor a common test out of code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35786 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 00:52:49 +00:00
Chris Lattner
51047859ed Fix a typo that broke SimplifyLibCalls/SPrintF.ll (pr1315) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35768 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 18:11:26 +00:00
Chris Lattner
044e5337f5 reenable this xform, whoops :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35765 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 08:01:49 +00:00
Chris Lattner
6cae0e06ac Fix regression on Instcombine/apint-or2.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 07:55:22 +00:00
Chris Lattner
c5e7ea49eb Generalize the code that handles (A&B)|(A&C) to work where B/C are not constants. 
Add a new xform to simplify (A&B)|(~A&C).  THis implements InstCombine/or2.ll:test1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 07:47:01 +00:00
Chris Lattner
5cef3c6eb7 implement a fixme: move optimizations for fwrite out of fputs into a new 
fwrite optimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 07:00:35 +00:00
Nick Lewycky
a397ce1cc2 Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35757 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-08 01:04:30 +00:00
Chris Lattner
0cd3a23d2a Significantly simplify the clients of GetConstantStringInfo, by having it 
just return the string itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35755 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 21:58:02 +00:00
Chris Lattner
73f5d42a97 Fix problems in the sprintf optimizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35754 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 21:17:51 +00:00
Chris Lattner
3492cda48f Change CastToCStr to take a pointer instead of a reference. 
Fix some miscompilations in fprintf optimizer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 21:04:50 +00:00
Chris Lattner
af33e6579a Fix an off-by-one error that broke Prolangs/deriv2 with llc on x86 
and Prolangs-C/cdecl


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35749 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 20:19:08 +00:00
Owen Anderson
e9ed4452bc Add DomSet back, and revert the changes to LoopSimplify. Apparently the 
ETForest updating mechanisms don't work as I thought they did.  These changes
will be reapplied once the issue is worked out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35741 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 18:23:27 +00:00
Nick Lewycky
ac4d664d45 Add support for cast instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35734 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 15:48:32 +00:00
Owen Anderson
ba43963e96 Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35731 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 07:17:27 +00:00
Owen Anderson
4f9e58ecdf Completely purge DomSet from LoopSimplify. This is part of the 
continuing work on PR1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35730 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 06:56:47 +00:00
Owen Anderson
a3ca0b648c BreakCriticalEdges does still preserve DominatorTree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35729 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 05:57:09 +00:00
Owen Anderson
2d43519454 Expunge DomSet from BreakCriticalEdges. This is part of the continuing 
work for PR 1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 05:49:29 +00:00
Owen Anderson
c6fcf29e81 Expunge DomSet from CodeExtractor. This is part of the continuing work 
on PR1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 05:31:27 +00:00
Nick Lewycky
a995d920d5 Support NE inequality in ValueRanges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 04:49:12 +00:00
Owen Anderson
d44008ae40 Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain. 
This is the beginning of work for PR1171.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35720 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 04:37:14 +00:00
Nick Lewycky
f3a9e368f6 Cleanup. Refactor out the applying of value ranges to its own method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 03:36:51 +00:00
Nick Lewycky
b01c77e137 Use TargetData to find the size of a type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35718 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 03:16:12 +00:00
Nick Lewycky
8ac40dd747 Strengthen icmp snuggling by doing 'compare-or-equal-to' to 'compare' 
first and then range testing second.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35715 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 02:30:14 +00:00
Devang Patel
c4625da483 Add loop rotation pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35714 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 01:25:15 +00:00
Chris Lattner
045af54275 fix a miscompilation in printf optimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 01:18:36 +00:00
Chris Lattner
ef4fd35726 trunc to bool no longer compares against zero 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 01:03:46 +00:00
Chris Lattner
71bf3e2ef9 cleanups for strlen optimizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35711 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 01:02:00 +00:00
Chris Lattner
679d7188c7 Introduce a new ReplaceCallWith method, which simplifies a lot of code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 00:42:32 +00:00
Chris Lattner
db895b82a3 fixes for strcpy optimizer 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35709 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 00:26:18 +00:00
Chris Lattner
7b50c8f278 Fix bugs in strncmp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35708 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 00:06:57 +00:00
Chris Lattner
ceb375ecf2 fix 3 miscompilations and several compielr crashes in strcmp optimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-07 00:01:51 +00:00
Chris Lattner
6897fe5861 Fix several nasty bugs in the strchr optimizer, this fixes 
SimplifyLibCalls/2007-04-06-strchr-miscompile.ll and PR1307


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35706 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-06 23:38:55 +00:00
Chris Lattner
09c11aa7f5 clean up strcat optimizer, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-06 22:59:33 +00:00
Chris Lattner
c8e1741bb9 rename getConstantStringLength -> GetConstantStringInfo. Make it return 
the start index of the array as well as the length.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-06 22:54:17 +00:00
Chris Lattner
4802d90ca8 implement Transforms/InstCombine/malloc2.ll and PR1313 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-06 18:57:34 +00:00
Chris Lattner
4913bf47fd Fix Transforms/GlobalOpt/2007-04-05-Crash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35689 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-05 21:09:42 +00:00
Chris Lattner
1984a32867 Use a worklist-driven algorithm instead of a recursive one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35680 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-05 01:27:02 +00:00
Dale Johannesen
16ff304e2c Prevent transformConstExprCastCall from generating conversions that assert 
elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35668 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 19:16:42 +00:00
Jeff Cohen
86796bec50 Fix 2007-04-04-BadFoldBitcastIntoMalloc.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 16:58:57 +00:00
Duncan Sands
0091bf2439 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 06:42:45 +00:00
Chris Lattner
7305084156 Fix a bug I introduced with my patch yesterday which broke Qt (I converted 
some constant exprs to apints).

Thanks to Anton for tracking down a small testcase that triggered this!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35633 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-03 23:29:39 +00:00
Chris Lattner
01deb9d91c reinstate the previous two patches, with a bugfix :) 
ldecod now passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35626 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-03 17:43:25 +00:00
Evan Cheng
d89f41e9bb Reverting back to 1.723. The last two commits broke JM (and possibily others) on ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35620 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-03 08:11:50 +00:00