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llvm-6502/test/Transforms/InstCombine
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Chris Lattner dd12f96c5e Fold (-x + -y) -> -(x+y) which promotes better association, fixing 
the second half of PR2047


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47244 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 21:03:36 +00:00
..
2002-03-11-InstCombineHang.ll
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2002-05-14-SubFailure.ll
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2002-05-14-TouchDeletedInst.ll
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2002-08-02-CastTest.ll
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2002-09-17-GetElementPtrCrash.ll
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2002-12-05-MissedConstProp.ll
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2003-05-26-CastMiscompile.ll
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2003-05-27-ConstExprCrash.ll
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2003-06-05-BranchInvertInfLoop.ll
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2003-06-22-ConstantExprCrash.ll
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2003-07-21-ExternalConstant.ll
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2003-08-12-AllocaNonNull.ll
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2003-09-09-VolatileLoadElim.ll
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2003-10-23-InstcombineNullFail.ll
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2003-10-29-CallSiteResolve.ll
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2003-11-03-VarargsCallBug.ll
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2003-11-13-ConstExprCastCall.ll
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2004-01-13-InstCombineInvokePHI.ll
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2004-02-23-ShiftShiftOverflow.ll
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2004-03-13-InstCombineInfLoop.ll
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2004-04-04-InstCombineReplaceAllUsesWith.ll
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2004-05-07-UnsizedCastLoad.ll
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2004-07-27-ConstantExprMul.ll
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2004-08-09-RemInfLoop.llx
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2004-08-10-BoolSetCC.ll
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2004-09-20-BadLoadCombine2.llx
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2004-09-20-BadLoadCombine.llx
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2004-09-28-BadShiftAndSetCC.llx
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2004-11-22-Missed-and-fold.ll
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2004-11-27-SetCCForCastLargerAndConstant.ll
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2004-12-08-InstCombineCrash.ll
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2004-12-08-RemInfiniteLoop.ll
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2005-03-04-ShiftOverflow.ll
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2005-04-07-UDivSelectCrash.ll
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2005-06-15-DivSelectCrash.ll
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2005-06-15-ShiftSetCCCrash.ll
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2005-06-16-RangeCrash.ll
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2005-06-16-SetCCOrSetCCMiscompile.ll
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2005-07-07-DeadPHILoop.ll
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2006-02-07-SextZextCrash.ll
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2006-02-13-DemandedMiscompile.ll
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2006-02-28-Crash.ll
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2006-03-30-ExtractElement.ll
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2006-04-01-InfLoop.ll
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2006-04-28-ShiftShiftLongLong.ll
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2006-05-04-DemandedBitCrash.ll
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2006-05-06-Infloop.ll
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2006-06-28-infloop.ll
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2006-09-11-EmptyStructCrash.ll
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2006-09-15-CastToBool.ll
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2006-10-19-SignedToUnsignedCastAndConst-2.ll
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2006-10-19-SignedToUnsignedCastAndConst.ll
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2006-10-20-mask.ll
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2006-10-26-VectorReassoc.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
2006-11-03-Memmove64.ll
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2006-11-10-ashr-miscompile.ll
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2006-11-27-XorBug.ll
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2006-12-01-BadFPVectorXform.ll
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2006-12-05-fp-to-int-ext.ll
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2006-12-08-ICmp-Combining.ll
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2006-12-08-Phi-ICmp-Op-Fold.ll
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2006-12-08-Select-ICmp.ll
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2006-12-10-ICmp-GEP-GEP.ll
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2006-12-15-Range-Test.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
2006-12-23-Select-Cmp-Cmp.ll
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2007-01-13-ExtCompareMiscompile.ll
this test is now compiled into the right thing.
2008-01-28 17:38:46 +00:00
2007-01-14-FcmpSelf.ll
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2007-01-18-VectorInfLoop.ll
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2007-01-27-AndICmp.ll
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2007-02-01-LoadSinkAlloca.ll
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2007-02-07-PointerCast.ll
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2007-02-23-PhiFoldInfLoop.ll
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2007-03-13-CompareMerge.ll
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2007-03-19-BadTruncChangePR1261.ll
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2007-03-21-SignedRangeTest.ll
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2007-03-25-BadShiftMask.ll
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2007-03-25-DoubleShift.ll
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2007-03-26-BadShiftMask.ll
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2007-03-27-PR1280.ll
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2007-03-31-InfiniteLoop.ll
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2007-04-04-BadFoldBitcastIntoMalloc.ll
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2007-04-08-SingleEltVectorCrash.ll
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2007-05-04-Crash.ll
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2007-05-10-icmp-or.ll
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2007-05-14-Crash.ll
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2007-05-18-CastFoldBug.ll
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2007-06-06-AshrSignBit.ll
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2007-06-21-DivCompareMiscomp.ll
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2007-08-02-InfiniteLoop.ll
Reduced testcase for PR1594
2007-08-02 17:11:24 +00:00
2007-09-05-EqualGEP.ll
When the two operands of an icmp are equal, there are five possible predicates
2007-09-06 01:10:22 +00:00
2007-09-10-AliasConstFold.ll
Fix a buggy constant folding transformation when handling aliases.
2007-09-10 23:42:42 +00:00
2007-09-11-Trampoline.ll
Test that a call to a trampoline is turned into a call to
2007-09-11 15:07:50 +00:00
2007-09-17-AliasConstFold2.ll
Testcase for PR1678.
2007-09-20 18:56:24 +00:00
2007-10-10-EliminateMemCpy.ll
This test now passes.
2007-10-19 17:11:01 +00:00
2007-10-12-Crash.ll
Fix a bug in my patch last night that broke InstCombine/2007-10-12-Crash.ll
2007-10-12 18:05:47 +00:00
2007-10-28-EmptyField.ll
Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling
2007-10-29 02:40:02 +00:00
2007-10-28-stacksave.ll
Model stacksave and stackrestore as both writing memory, since we
2007-10-29 05:47:52 +00:00
2007-10-31-RangeCrash.ll
Fix InstCombine/2007-10-31-RangeCrash.ll
2007-11-01 02:18:41 +00:00
2007-10-31-StringCrash.ll
Fix InstCombine/2007-10-31-StringCrash.ll by removing an obvious
2007-11-01 02:30:35 +00:00
2007-11-07-OpaqueAlignCrash.ll
Better check
2007-11-08 18:45:15 +00:00
2007-11-15-CompareMiscomp.ll
Fix PR1800 by correcting mistaken logic.
2007-11-16 06:04:17 +00:00
2007-11-22-IcmpCrash.ll
Fix PR1817.
2007-11-22 23:47:13 +00:00
2007-11-25-CompatibleAttributes.ll
Fix PR1816. If a bitcast of a function only exists because of a
2007-11-25 14:10:56 +00:00
2007-12-10-ConstFoldCompare.ll
Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp.
2007-12-10 22:53:04 +00:00
2007-12-12-GEPScale.ll
1. "Upgrage" comments.
2007-12-12 15:21:32 +00:00
2007-12-16-AsmNoUnwind.ll
Make instcombine promote inline asm calls to 'nounwind'
2007-12-16 15:51:49 +00:00
2007-12-18-AddSelCmpSub.ll
Remove an orthogonal transformation of the selection condition from my most recent submission.
2007-12-18 20:30:28 +00:00
2007-12-28-IcmpSub2.ll
Add a testcase for my recent InstCombine fix, written by Nicholas.
2007-12-28 21:08:43 +00:00
2008-01-06-BitCastAttributes.ll
When turning a call to a bitcast function into a direct call,
2008-01-13 08:02:44 +00:00
2008-01-06-CastCrash.ll
When transforming a call to a bitcast function into
2008-01-06 10:12:28 +00:00
2008-01-06-VoidCast.ll
When transforming a call to a bitcast function into
2008-01-06 10:12:28 +00:00
2008-01-13-AndCmpCmp.ll
Fix PR1907, a nasty miscompilation because instcombine didn't
2008-01-13 20:59:02 +00:00
2008-01-13-NoBitCastAttributes.ll
When turning a call to a bitcast function into a direct call,
2008-01-13 08:02:44 +00:00
2008-01-14-DoubleNest.ll
I noticed that the trampoline straightening transformation could
2008-01-14 19:52:09 +00:00
2008-01-14-VarArgTrampoline.ll
I noticed that the trampoline straightening transformation could
2008-01-14 19:52:09 +00:00
2008-01-21-MismatchedCastAndCompare.ll
Handle some more combinations of extend and icmp. Fixes PR1940.
2008-01-28 03:48:02 +00:00
2008-01-21-MulTrunc.ll
Multiply can be evaluated in a different type, so long as the target type has
2008-01-22 05:08:48 +00:00
2008-01-27-FloatSelect.ll
Fix PR1932 by disabling an xform invalid for fdiv.
2008-01-28 00:58:18 +00:00
2008-01-29-AddICmp.ll
Tag this test with the PR reference.
2008-02-03 16:35:19 +00:00
2008-02-04-GEPIdxBug.ll
Fix a bug compiling PR1978 (perhaps not the only one though) which
2008-02-05 04:45:32 +00:00
add2.ll
Implement PR1795, an instcombine hack for forming GEPs with integer pointer arithmetic.
2008-01-08 07:23:51 +00:00
add.ll
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addnegneg.ll
Fold (-x + -y) -> -(x+y) which promotes better association, fixing
2008-02-17 21:03:36 +00:00
align-inc.ll
oops, forgot to commit this.
2007-08-12 16:55:14 +00:00
alloca.ll
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and2.ll
Implement a couple of foldings for ordered and unordered comparisons,
2007-10-24 05:38:08 +00:00
and-compare.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and-or-and.ll
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and-or-not.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and-xor-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and.ll
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apint-add1.ll
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apint-add2.ll
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apint-and1.ll
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apint-and2.ll
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apint-and-compare.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-and-or-and.ll
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apint-and-xor-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-call-cast-target.ll
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apint-cast-and-cast.ll
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apint-cast-cast-to-and.ll
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apint-cast.ll
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apint-div1.ll
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apint-div2.ll
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apint-elim-logicalops.ll
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apint-mul1.ll
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apint-mul2.ll
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apint-not.ll
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apint-or1.ll
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apint-or2.ll
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apint-rem1.ll
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apint-rem2.ll
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apint-select.ll
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apint-shift-simplify.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-shift.ll
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apint-shl-trunc.ll
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apint-sub.ll
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apint-xor1.ll
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apint-xor2.ll
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apint-zext1.ll
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apint-zext2.ll
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binop-cast.ll
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bit-tracking.ll
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bitcast-gep.ll
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bitcast-vector-fold.ll
Implement constant folding if vector<->vector bitcasts where the number
2007-12-11 07:29:44 +00:00
bitcount.ll
This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future.
2007-08-04 01:51:18 +00:00
bittest.ll
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bswap-fold.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
bswap.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
call2.ll
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call-cast-target.ll
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call-intrinsics.ll
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call.ll
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canonicalize_branch.ll
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cast2.ll
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cast_ptr.ll
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cast-and-cast.ll
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cast-cast-to-and.ll
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cast-load-gep.ll
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cast-malloc.ll
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cast-propagate.ll
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cast-set.ll
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cast.ll
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CPP_min_max.llx
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deadcode.ll
dead calls to llvm.stacksave can be deleted, even though they
2007-12-29 00:59:12 +00:00
dg.exp
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div.ll
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fold-vector-zero.ll
Add support for folding binary operators with vector zero operands.
2007-10-30 19:00:49 +00:00
fpcast.ll
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fpextend.ll
Fold fptrunc(add (fpextend x), (fpextend y)) -> add(x,y), as GCC does.
2008-01-27 05:29:54 +00:00
GEPIdxCanon.ll
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getelementptr_cast.ll
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getelementptr_const.ll
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getelementptr_index.ll
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getelementptr-setcc.ll
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getelementptr.ll
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hoist_instr.ll
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icmp.ll
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IntPtrCast.ll
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JavaCompare.ll
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known_align.ll
Fix a bug in GetKnownAlignment of packed structs.
2007-07-31 20:13:21 +00:00
load2.ll
Transform a load from an undef/zero global into an undef/global even if we
2007-08-11 18:48:48 +00:00
load.ll
Change all floating constants that are not exactly
2007-09-05 17:50:36 +00:00
loadstore-alignment.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
malloc2.ll
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malloc3.ll
testcase for PR1728
2007-10-12 05:29:53 +00:00
malloc-free-delete.ll
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malloc.ll
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memcpy-to-load.ll
Turn a memcpy from a double* into a load/store of double instead of
2008-01-14 00:28:35 +00:00
memmove.ll
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mul.ll
rename function to avoid llvm-upgrade warning
2007-07-16 04:09:00 +00:00
narrow.ll
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not-fcmp.ll
It's safe to fold not of fcmp.
2007-08-06 20:04:16 +00:00
not.ll
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or2.ll
Implement a couple of foldings for ordered and unordered comparisons,
2007-10-24 05:38:08 +00:00
or.ll
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phi-merge.ll
Implement PR1777 by detecting dependent phis that
2007-11-06 21:52:06 +00:00
phi.ll
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README.txt
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rem.ll
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select.ll
Implement PR1822
2007-11-25 21:27:53 +00:00
set.ll
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setcc-cast-cast.ll
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setcc-strength-reduce.ll
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shift-simplify.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
shift-sra.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
shift-trunc-shift.ll
implement InstCombine/shift-trunc-shift.ll. This allows
2007-12-22 09:07:47 +00:00
shift.ll
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shl-trunc.ll
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signext.ll
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sink_instruction.ll
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srem.ll
Instcombine x-((x/y)*y) into a remainder operator.
2007-09-17 17:31:57 +00:00
stacksaverestore.ll
update testcase
2007-10-29 17:06:35 +00:00
store-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
store.ll
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sub.ll
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udiv_select_to_select_shift.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
urem.ll
Instcombine x-((x/y)*y) into a remainder operator.
2007-09-17 17:31:57 +00:00
vec_demanded_elts.ll
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vec_extract_elt.ll
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vec_insert_to_shuffle.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
vec_insertelt.ll
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vec_narrow.ll
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vec_shuffle.ll
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vector-srem.ll
Fix an abort in instcombine when folding creates a vector rem instruction.
2007-11-05 23:16:33 +00:00
volatile_store.ll
Don't zap back to back volatile load/stores
2007-09-07 05:33:03 +00:00
xor2.ll
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xor.ll
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zero-point-zero-add.ll
eliminate additions of 0.0 when they are obviously dead. This has to be careful to
2008-01-29 06:52:45 +00:00
zeroext-and-reduce.ll
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zext-fold.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
zext.ll
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README.txt 

This directory contains test cases for the instcombine transformation.  The
dated tests are actual bug tests, whereas the named tests are used to test
for features that the this pass should be capable of performing.