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3052 Commits

Author SHA1 Message Date
Chris Lattner
218d43af10 Fix PR1304 and Transforms/InstCombine/2007-04-08-SingleEltVectorCrash.ll 
llvm-svn: 35792
 2007-04-09 01:37:55 +00:00
Chris Lattner
b3d105a4f9 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 :)

llvm-svn: 35788
 2007-04-09 01:11:16 +00:00
Owen Anderson
f9a432a613 Cleanup some from my DomSet-removal changes. Add a new 
isReachableFromEntry
test to ETForest to factor a common test out of code.

llvm-svn: 35786
 2007-04-09 00:52:49 +00:00
Chris Lattner
4ed32d0891 Fix a typo that broke SimplifyLibCalls/SPrintF.ll (pr1315) 
llvm-svn: 35768
 2007-04-08 18:11:26 +00:00
Chris Lattner
1a1b798eb5 reenable this xform, whoops :) 
llvm-svn: 35765
 2007-04-08 08:01:49 +00:00
Chris Lattner
1760b42378 Fix regression on Instcombine/apint-or2.ll 
llvm-svn: 35763
 2007-04-08 07:55:22 +00:00
Chris Lattner
d435e0bfd2 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

llvm-svn: 35760
 2007-04-08 07:47:01 +00:00
Chris Lattner
34464bdf2b implement a fixme: move optimizations for fwrite out of fputs into a new 
fwrite optimizer.

llvm-svn: 35758
 2007-04-08 07:00:35 +00:00
Nick Lewycky
71592d1ef2 Remove DominatorSet usage from LoopSimplify. Patch from Owen Anderson. 
llvm-svn: 35757
 2007-04-08 01:04:30 +00:00
Chris Lattner
16fe035aa4 Significantly simplify the clients of GetConstantStringInfo, by having it 
just return the string itself.

llvm-svn: 35755
 2007-04-07 21:58:02 +00:00
Chris Lattner
5b3be230d4 Fix problems in the sprintf optimizer 
llvm-svn: 35754
 2007-04-07 21:17:51 +00:00
Chris Lattner
99a7ea0b00 Change CastToCStr to take a pointer instead of a reference. 
Fix some miscompilations in fprintf optimizer.

llvm-svn: 35753
 2007-04-07 21:04:50 +00:00
Chris Lattner
fcc6fe0a9c Fix an off-by-one error that broke Prolangs/deriv2 with llc on x86 
and Prolangs-C/cdecl

llvm-svn: 35749
 2007-04-07 20:19:08 +00:00
Owen Anderson
7cf9d12f2e 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.

llvm-svn: 35741
 2007-04-07 18:23:27 +00:00
Nick Lewycky
e6cb3e2433 Add support for cast instructions. 
llvm-svn: 35734
 2007-04-07 15:48:32 +00:00
Owen Anderson
85b0e20f2a Completely purge DomSet. This is the (hopefully) final patch for PR1171. 
llvm-svn: 35731
 2007-04-07 07:17:27 +00:00
Owen Anderson
177b1a6aea Completely purge DomSet from LoopSimplify. This is part of the 
continuing work on PR1171.

llvm-svn: 35730
 2007-04-07 06:56:47 +00:00
Owen Anderson
e2add101a4 BreakCriticalEdges does still preserve DominatorTree. 
llvm-svn: 35729
 2007-04-07 05:57:09 +00:00
Owen Anderson
eb184ee17b Expunge DomSet from BreakCriticalEdges. This is part of the continuing 
work for PR 1171.

llvm-svn: 35728
 2007-04-07 05:49:29 +00:00
Owen Anderson
41bf50021d Expunge DomSet from CodeExtractor. This is part of the continuing work 
on PR1171.

llvm-svn: 35726
 2007-04-07 05:31:27 +00:00
Nick Lewycky
3e77af40ff Support NE inequality in ValueRanges. 
llvm-svn: 35724
 2007-04-07 04:49:12 +00:00
Owen Anderson
54c7efee4d Expunge a bunch of uses of DomSet from LoopSimplify. Many more remain. 
This is the beginning of work for PR1171.

llvm-svn: 35720
 2007-04-07 04:37:14 +00:00
Nick Lewycky
7fbec59fb4 Cleanup. Refactor out the applying of value ranges to its own method. 
llvm-svn: 35719
 2007-04-07 03:36:51 +00:00
Nick Lewycky
80cf96b3f8 Use TargetData to find the size of a type. 
llvm-svn: 35718
 2007-04-07 03:16:12 +00:00
Nick Lewycky
3ddf638983 Strengthen icmp snuggling by doing 'compare-or-equal-to' to 'compare' 
first and then range testing second.

llvm-svn: 35715
 2007-04-07 02:30:14 +00:00
Devang Patel
562df7f986 Add loop rotation pass. 
llvm-svn: 35714
 2007-04-07 01:25:15 +00:00
Chris Lattner
dbf5d6cf68 fix a miscompilation in printf optimizer. 
llvm-svn: 35713
 2007-04-07 01:18:36 +00:00
Chris Lattner
9aa0d009c1 trunc to bool no longer compares against zero 
llvm-svn: 35712
 2007-04-07 01:03:46 +00:00
Chris Lattner
312c204869 cleanups for strlen optimizer 
llvm-svn: 35711
 2007-04-07 01:02:00 +00:00
Chris Lattner
5f27ea3613 Introduce a new ReplaceCallWith method, which simplifies a lot of code. 
llvm-svn: 35710
 2007-04-07 00:42:32 +00:00
Chris Lattner
fba13c72ef fixes for strcpy optimizer 
llvm-svn: 35709
 2007-04-07 00:26:18 +00:00
Chris Lattner
02ae7ab94f Fix bugs in strncmp. 
llvm-svn: 35708
 2007-04-07 00:06:57 +00:00
Chris Lattner
d8a16e67ab fix 3 miscompilations and several compielr crashes in strcmp optimizer. 
llvm-svn: 35707
 2007-04-07 00:01:51 +00:00
Chris Lattner
c61ff0afc0 Fix several nasty bugs in the strchr optimizer, this fixes 
SimplifyLibCalls/2007-04-06-strchr-miscompile.ll and PR1307

llvm-svn: 35706
 2007-04-06 23:38:55 +00:00
Chris Lattner
bfad67243a clean up strcat optimizer, no functionality change. 
llvm-svn: 35704
 2007-04-06 22:59:33 +00:00
Chris Lattner
d03767c332 rename getConstantStringLength -> GetConstantStringInfo. Make it return 
the start index of the array as well as the length.  No functionality change.

llvm-svn: 35703
 2007-04-06 22:54:17 +00:00
Chris Lattner
03c84be56b implement Transforms/InstCombine/malloc2.ll and PR1313 
llvm-svn: 35700
 2007-04-06 18:57:34 +00:00
Chris Lattner
19b9e90f9c Fix Transforms/GlobalOpt/2007-04-05-Crash.ll 
llvm-svn: 35689
 2007-04-05 21:09:42 +00:00
Chris Lattner
997967979f Use a worklist-driven algorithm instead of a recursive one. 
llvm-svn: 35680
 2007-04-05 01:27:02 +00:00
Dale Johannesen
fb15913194 Prevent transformConstExprCastCall from generating conversions that assert 
elsewhere.

llvm-svn: 35668
 2007-04-04 19:16:42 +00:00
Jeff Cohen
01d4afe6da Fix 2007-04-04-BadFoldBitcastIntoMalloc.ll 
llvm-svn: 35665
 2007-04-04 16:58:57 +00:00
Duncan Sands
de998e6599 Fix comment. 
llvm-svn: 35655
 2007-04-04 06:42:45 +00:00
Chris Lattner
974e931689 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!

llvm-svn: 35633
 2007-04-03 23:29:39 +00:00
Chris Lattner
bfe18d29f9 reinstate the previous two patches, with a bugfix :) 
ldecod now passes.

llvm-svn: 35626
 2007-04-03 17:43:25 +00:00
Evan Cheng
e30cfe8e9e Reverting back to 1.723. The last two commits broke JM (and possibily others) on ARM. 
llvm-svn: 35620
 2007-04-03 08:11:50 +00:00
Chris Lattner
4302c8bcdb split some code out into a helper function 
llvm-svn: 35615
 2007-04-03 05:11:24 +00:00
Chris Lattner
23d58bde29 Split a whole ton of code out of visitICmpInst into visitICmpInstWithInstAndIntCst. 
llvm-svn: 35614
 2007-04-03 04:46:52 +00:00
Chris Lattner
9b66a372c8 Fix PR1253 and xor2.ll:test[01] 
llvm-svn: 35612
 2007-04-03 01:47:41 +00:00
Chris Lattner
3df2382275 allow -1 strides to reuse "1" strides. 
llvm-svn: 35607
 2007-04-02 22:51:58 +00:00
Zhou Sheng
98c161c290 1. Make use of APInt operation instead of using ConstantExpr::getXXX. 
2. Use cheaper APInt methods.

llvm-svn: 35594
 2007-04-02 13:45:30 +00:00