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llvm-6502/test/Transforms/InstCombine
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Nick Lewycky 4333f49afe Reinstate this optimization to fold icmp of xor when possible. Don't try to 
turn icmp eq a+x, b+x into icmp eq a, b if a+x or b+x has other uses. This
may have been increasing register pressure leading to the bzip2 slowdown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63487 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-31 21:30:05 +00:00
..
2002-03-11-InstCombineHang.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2002-05-14-SubFailure.ll
…
2002-05-14-TouchDeletedInst.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2002-08-02-CastTest.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2002-09-17-GetElementPtrCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2002-12-05-MissedConstProp.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-05-26-CastMiscompile.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-05-27-ConstExprCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-06-05-BranchInvertInfLoop.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-06-22-ConstantExprCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-07-21-ExternalConstant.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2003-08-12-AllocaNonNull.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-09-09-VolatileLoadElim.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-10-23-InstcombineNullFail.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-10-29-CallSiteResolve.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-11-03-VarargsCallBug.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2003-11-13-ConstExprCastCall.ll
Situations can arise when you have a function called that returns a 'void', but
2008-05-14 22:45:20 +00:00
2004-01-13-InstCombineInvokePHI.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-02-23-ShiftShiftOverflow.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-03-13-InstCombineInfLoop.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-04-04-InstCombineReplaceAllUsesWith.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-05-07-UnsizedCastLoad.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-07-27-ConstantExprMul.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-08-09-RemInfLoop.ll
rename *.llx -> *.ll, last batch.
2008-04-19 22:32:52 +00:00
2004-08-10-BoolSetCC.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-09-20-BadLoadCombine2.ll
Update old-style syntax in some "not grep" tests.
2008-05-01 23:50:07 +00:00
2004-09-20-BadLoadCombine.ll
rename *.llx -> *.ll, last batch.
2008-04-19 22:32:52 +00:00
2004-09-28-BadShiftAndSetCC.ll
rename *.llx -> *.ll, last batch.
2008-04-19 22:32:52 +00:00
2004-11-22-Missed-and-fold.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-11-27-SetCCForCastLargerAndConstant.ll
Eliminate questionable syntax for stdin redirection. This probably also speeds things up a bit.
2008-05-20 22:07:21 +00:00
2004-12-08-InstCombineCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2004-12-08-RemInfiniteLoop.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-03-04-ShiftOverflow.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-04-07-UDivSelectCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-06-15-DivSelectCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-06-15-ShiftSetCCCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-06-16-RangeCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-06-16-SetCCOrSetCCMiscompile.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2005-07-07-DeadPHILoop.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-02-07-SextZextCrash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-02-13-DemandedMiscompile.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-02-28-Crash.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-03-30-ExtractElement.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-04-01-InfLoop.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-04-28-ShiftShiftLongLong.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-05-04-DemandedBitCrash.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-05-06-Infloop.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-06-28-infloop.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-09-11-EmptyStructCrash.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-09-15-CastToBool.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-10-19-SignedToUnsignedCastAndConst-2.ll
Eliminate questionable syntax for stdin redirection. This probably also speeds things up a bit.
2008-05-20 22:07:21 +00:00
2006-10-19-SignedToUnsignedCastAndConst.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-10-20-mask.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-10-26-VectorReassoc.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-11-03-Memmove64.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-11-10-ashr-miscompile.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-11-27-XorBug.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-12-01-BadFPVectorXform.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-12-05-fp-to-int-ext.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-12-08-ICmp-Combining.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
2006-12-08-Phi-ICmp-Op-Fold.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-12-08-Select-ICmp.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-12-10-ICmp-GEP-GEP.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-12-15-Range-Test.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
2006-12-23-Select-Cmp-Cmp.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
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
…
2007-01-18-VectorInfLoop.ll
…
2007-01-27-AndICmp.ll
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2007-02-01-LoadSinkAlloca.ll
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2007-02-07-PointerCast.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
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
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2007-09-05-EqualGEP.ll
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2007-09-10-AliasConstFold.ll
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2007-09-11-Trampoline.ll
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2007-09-17-AliasConstFold2.ll
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2007-10-10-EliminateMemCpy.ll
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2007-10-12-Crash.ll
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2007-10-28-EmptyField.ll
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2007-10-28-stacksave.ll
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2007-10-31-RangeCrash.ll
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2007-10-31-StringCrash.ll
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2007-11-07-OpaqueAlignCrash.ll
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2007-11-15-CompareMiscomp.ll
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2007-11-22-IcmpCrash.ll
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2007-11-25-CompatibleAttributes.ll
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2007-12-10-ConstFoldCompare.ll
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2007-12-12-GEPScale.ll
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2007-12-16-AsmNoUnwind.ll
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2007-12-18-AddSelCmpSub.ll
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2007-12-28-IcmpSub2.ll
…
2008-01-06-BitCastAttributes.ll
Ignore stderr for some more tests that expect warnings there.
2008-06-10 16:13:38 +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
Fix two more not-grep tests that were missing llvm-dis.
2008-06-09 22:36:45 +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
2008-02-13-MulURem.ll
Commit the testcase too.
2008-03-06 06:50:03 +00:00
2008-02-16-SDivOverflow2.ll
Correctly fold divide-by-constant, even when faced with overflow.
2008-02-18 22:48:05 +00:00
2008-02-16-SDivOverflow.ll
Correctly fold divide-by-constant, even when faced with overflow.
2008-02-18 22:48:05 +00:00
2008-02-23-MulSub.ll
fix this test so that the fn name doesn't match the regex
2008-02-26 18:13:51 +00:00
2008-02-28-OrFCmpCrash.ll
Folding or(fcmp,fcmp) only works if the operands of the fcmps are the same fp type.
2008-02-29 06:09:11 +00:00
2008-03-13-IntToPtr.ll
The inst combining of inttoptr into GEP with one index was using the bit size of
2008-03-14 05:12:19 +00:00
2008-04-22-ByValBitcast.ll
distill down the essense of this test.
2008-04-23 03:03:42 +00:00
2008-04-28-VolatileStore.ll
don't delete the last store to an alloca if the store is volatile.
2008-04-29 04:58:38 +00:00
2008-04-29-VolatileLoadDontMerge.ll
don't eliminate load from volatile value on paths where the load is dead.
2008-04-29 17:28:22 +00:00
2008-04-29-VolatileLoadMerge.ll
Fix a broken test. Neither load is eliminable without changing the CFG.
2008-07-09 05:01:02 +00:00
2008-05-08-LiveStoreDelete.ll
Make instcombine's DSE respect loads as well as stores. It is not safe to
2008-05-08 17:20:30 +00:00
2008-05-08-StrLenSink.ll
More than just loads can read from memory: readonly calls like strlen
2008-05-08 17:37:37 +00:00
2008-05-09-SinkOfInvoke.ll
Testcase for PR2303.
2008-05-10 16:43:10 +00:00
2008-05-17-InfLoop.ll
Fix PR2339
2008-05-18 04:11:26 +00:00
2008-05-18-FoldIntToPtr.ll
"ret (constexpr)" can't be folded into a Constant. Add a method to
2008-05-25 20:56:15 +00:00
2008-05-22-IDivVector.ll
Fix a recently added optimization to not crash on vectors.
2008-05-23 03:26:47 +00:00
2008-05-22-NegValVector.ll
Constant integer vectors may also be negated.
2008-05-23 04:54:45 +00:00
2008-05-23-CompareFold.ll
Fix a serious brain-o. Obviously no-one reviewed my patch :(
2008-05-24 04:06:28 +00:00
2008-05-31-AddBool.ll
Adding i1 is always Xor.
2008-05-31 17:10:28 +00:00
2008-05-31-Bools.ll
Add more i1 optimizations. add, sub, mul, s/udiv on i1 are now simplified away.
2008-05-31 17:59:52 +00:00
2008-06-05-ashr-crash.ll
Add a test case for opt -instcombine bug fix in revision 52003.
2008-06-05 14:25:11 +00:00
2008-06-08-ICmpPHI.ll
Remove unnecessary target lines.
2008-06-13 22:10:32 +00:00
2008-06-13-InfiniteLoopStore.ll
Remove unnecessary target lines.
2008-06-13 22:12:16 +00:00
2008-06-13-ReadOnlyCallStore.ll
Don't skip over instructions other than loads that might read memory
2008-06-13 22:02:12 +00:00
2008-06-19-UncondLoad.ll
Fix PR2471, which is a bug involving an invalid promotion from a conditional load.
2008-06-20 05:12:56 +00:00
2008-06-21-CompareMiscomp.ll
Fix for PR2479: correctly optimize expressions like (a > 13) & (a ==
2008-06-21 23:36:13 +00:00
2008-06-24-StackRestore.ll
Fix PR2488, a case where we deleted stack restores too aggressively.
2008-06-25 05:59:28 +00:00
2008-07-08-AndICmp.ll
Reinstate this optimization, but without the miscompile. Thanks to Bill for
2008-08-06 04:54:03 +00:00
2008-07-08-ShiftOneAndOne.ll
Fold ((1 << a) & 1) to (a == 0).
2008-07-09 05:20:13 +00:00
2008-07-08-SubAnd.ll
Reduce x - y to -y when we know the 'x' part will get masked off anyways.
2008-07-09 04:32:37 +00:00
2008-07-08-VolatileLoadMerge.ll
new testcase for PR2496
2008-07-08 17:18:05 +00:00
2008-07-09-SubAndError.ll
Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error!
2008-07-10 05:51:40 +00:00
2008-07-10-CastSextBool.ll
Fix folding of icmp's of i1 where the comparison is signed. The code
2008-07-11 04:20:58 +00:00
2008-07-10-ICmpBinOp.ll
Add another optimization from PR2330. Also catch some missing cases that are
2008-07-11 07:20:53 +00:00
2008-07-11-RemAnd.ll
Enhance analysis of srem.
2008-07-12 05:04:38 +00:00
2008-07-13-DivZero.ll
Fix PR2506 by being a bit more careful about reverse fact propagation when
2008-07-14 00:15:52 +00:00
2008-07-16-fsub.ll
Fix PR2553
2008-07-17 06:07:20 +00:00
2008-07-16-sse2_storel_dq.ll
Fix PR2296. Do not transform x86_sse2_storel_dq into a full-width store.
2008-07-16 07:28:14 +00:00
2008-08-05-And.ll
Just grep for through the LL code instead of the ASM code
2008-08-06 00:10:32 +00:00
2008-08-17-ICmpXorSignbit.ll
Reinstate this optimization to fold icmp of xor when possible. Don't try to
2009-01-31 21:30:05 +00:00
2008-09-02-VectorCrash.ll
Don't crash when trying to constant fold a vector with some elements that can't
2008-09-03 05:54:33 +00:00
2008-09-29-FoldingOr.ll
Fix misoptimization of: xor i1 (icmp eq (X, C1), icmp s[lg]t (X, C2))
2008-09-30 06:08:34 +00:00
2008-10-11-DivCompareFold.ll
Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changes
2008-10-11 22:55:00 +00:00
2008-10-23-ConstFoldWithoutMask.ll
Don't try to create a mask when we don't need one. Fixes a crash.
2008-10-24 06:14:27 +00:00
2008-11-01-SRemDemandedBits.ll
Fix demanded bits analysis with srem by negative number. Based on a patch
2008-11-02 02:41:50 +00:00
2008-11-08-FCmp.ll
If the LHS of the FCMP is coming from a UIToFP instruction, then we don't want
2008-11-09 04:26:50 +00:00
2008-11-20-DivMulRem.ll
Optimize (x/y)*y into x-(x%y) in general. Div and rem are about the same, and
2008-11-21 07:33:58 +00:00
2008-11-27-IDivVector.ll
Add a couple of missed optimizations on integer vectors. Multiply and divide
2008-11-27 20:21:08 +00:00
2008-11-27-MultiplyIntVec.ll
Add a couple of missed optimizations on integer vectors. Multiply and divide
2008-11-27 20:21:08 +00:00
2008-11-27-UDivNegative.ll
Chris prefers icmp/select over udiv!
2008-11-27 22:41:10 +00:00
2008-12-17-SRemNegConstVec.ll
Make all the vector elements positive in an srem of constant vector.
2008-12-18 06:31:11 +00:00
2009-01-05-i128-crash.ll
make m_ConstantInt(int64_t) safely match ConstantInt's that are larger than i64.
2009-01-05 23:45:50 +00:00
2009-01-08-AlignAlloca.ll
Make instcombine ensure that all allocas are explicitly aligned at at
2009-01-13 20:18:38 +00:00
2009-01-16-PointerAddrSpace.ll
Fix PR3335 by not turning a store to one address space into a store to another.
2009-01-16 20:12:52 +00:00
2009-01-19-fmod-constant-float-specials.ll
Do not use host floating point types when emitting
2009-01-21 20:32:55 +00:00
2009-01-19-fmod-constant-float.ll
Calls to fmod, it turns out, are constant-folded by
2009-01-20 21:58:13 +00:00
2009-01-24-EmptyStruct.ll
testcase for PR3381.
2009-01-24 17:16:04 +00:00
2009-01-31-InfIterate.ll
Fix PR3452 (an infinite loop bootstrapping) by disabling the recent
2009-01-31 19:05:27 +00:00
2009-01-31-Pressure.ll
Reinstate this optimization to fold icmp of xor when possible. Don't try to
2009-01-31 21:30:05 +00:00
add2.ll
be more aggressive about transforming add -> or when the operands have no
2008-05-19 20:01:56 +00:00
add-shrink.ll
Teach instcombine 4 new xforms:
2008-05-20 05:46:13 +00:00
add-sitofp.ll
Generalize the new code in instcombine's ComputeNumSignBits for handling
2008-05-23 02:28:01 +00:00
add.ll
Teach masked value is zero about add and sub, and use MVIZ to
2008-03-21 05:19:58 +00:00
addnegneg.ll
Fold (-x + -y) -> -(x+y) which promotes better association, fixing
2008-02-17 21:03:36 +00:00
adjust-for-sminmax.ll
Improve instcombine's handling of integer min and max in two ways:
2008-09-16 18:46:06 +00:00
align-2d-gep.ll
Teach InstCombine's ComputeMaskedBits to handle pointer expressions
2008-04-10 18:43:06 +00:00
align-addr.ll
Teach InstCombine's ComputeMaskedBits to handle pointer expressions
2008-04-10 18:43:06 +00:00
align-inc.ll
…
alloca.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
and2.ll
…
and-compare.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
and-fcmp.ll
- Somehow I forgot about one / une.
2008-10-14 18:13:38 +00:00
and-not-or.ll
simplify these patterns using m_Specific. No need to grep for
2008-12-01 05:16:26 +00:00
and-or-and.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
and-or-not.ll
…
and-or.ll
Implement ((A|B)&1)|(B&-2) -> (A&1) | B transformation. This also takes care of
2008-12-01 01:07:11 +00:00
and-xor-merge.ll
…
and.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
apint-add1.ll
…
apint-add2.ll
…
apint-and1.ll
…
apint-and2.ll
…
apint-and-compare.ll
…
apint-and-or-and.ll
…
apint-and-xor-merge.ll
…
apint-call-cast-target.ll
When simplifying a call to a bitcast function, tighten up
2008-06-01 07:38:42 +00:00
apint-cast-and-cast.ll
…
apint-cast-cast-to-and.ll
…
apint-cast.ll
…
apint-div1.ll
…
apint-div2.ll
…
apint-elim-logicalops.ll
…
apint-mul1.ll
…
apint-mul2.ll
…
apint-not.ll
…
apint-or1.ll
…
apint-or2.ll
…
apint-rem1.ll
…
apint-rem2.ll
…
apint-select.ll
…
apint-shift-simplify.ll
…
apint-shift.ll
…
apint-shl-trunc.ll
…
apint-sub.ll
Instcombine was illegally transforming -X/C into X/-C when either X or C
2008-11-30 03:42:12 +00:00
apint-xor1.ll
…
apint-xor2.ll
…
apint-zext1.ll
…
apint-zext2.ll
…
binop-cast.ll
…
bit-tracking.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
bitcast-gep.ll
Fix part 3/2 of PR3290, making instcombine zap (gep(bitcast)) when possible.
2009-01-09 05:44:56 +00:00
bitcast-vector-fold.ll
…
bitcount.ll
…
bittest.ll
Update old-style syntax in some "not grep" tests.
2008-05-01 23:50:07 +00:00
bswap-fold.ll
implement some simple bswap optimizations, rdar://5992453
2008-06-18 04:33:20 +00:00
bswap.ll
rewrite bswap matching to be more general, allowing arbitrary
2008-10-05 02:13:19 +00:00
call2.ll
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call-cast-target.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
call-intrinsics.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
call.ll
Ignore stderr for some more tests that expect warnings there.
2008-06-10 16:13:38 +00:00
canonicalize_branch.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast2.ll
…
cast_ptr.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-and-cast.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-cast-to-and.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-load-gep.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-malloc.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-mul-select.ll
Fix missed optimization opportunity when analyzing cast of mul and select.
2008-07-05 21:19:34 +00:00
cast-propagate.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-set.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
cast-sext-zext.ll
Fix PR3452 (an infinite loop bootstrapping) by disabling the recent
2009-01-31 19:05:27 +00:00
cast-store-gep.ll
Make InstCombineStoreToCast handle aggregates more aggressively,
2009-01-24 01:00:13 +00:00
cast.ll
Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type.
2009-01-16 02:11:43 +00:00
CPP_min_max.ll
rename *.llx -> *.ll, last batch.
2008-04-19 22:32:52 +00:00
dce-iterate.ll
make sure to set Changed=true when instcombine hacks on the code,
2009-01-31 07:04:22 +00:00
deadcode.ll
…
dg.exp
sabre brings to my attention that the 'tr' suffix is also obsolete
2008-05-20 21:00:03 +00:00
div-cmp-overflow.ll
Fix an icmp+sdiv optimization to check for and handle an overflow
2008-09-10 23:30:57 +00:00
div.ll
implement PR2328.
2008-05-16 02:59:42 +00:00
extractvalue.ll
Add a few cases to instcombine's extractvalue testcase.
2008-07-16 12:57:25 +00:00
fold-vector-zero.ll
…
fp-ret-bitcast.ll
Situations can arise when you have a function called that returns a 'void', but
2008-05-14 22:45:20 +00:00
fpcast.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
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
Remove GCSE and LoadVN from the testsuite.
2008-08-16 00:00:54 +00:00
getelementptr_cast.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
getelementptr_const.ll
Remove GCSE and LoadVN from the testsuite.
2008-08-16 00:00:54 +00:00
getelementptr_index.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
getelementptr_promote.ll
On 64-bit targets, change 32-bit getelementptr indices to be 64-bit
2008-09-11 23:06:38 +00:00
getelementptr-setcc.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
getelementptr-seteq.ll
optimize "p != gep p, ..." better. This allows us to compile
2008-04-22 02:53:33 +00:00
getelementptr.ll
Byebye llvm-upgrade!
2008-03-25 04:26:08 +00:00
hoist_instr.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
icmp.ll
Implement rdar://6480391, extending of equality icmp's to avoid a truncation.
2009-01-09 07:47:06 +00:00
IntPtrCast.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
JavaCompare.ll
make this condition more precise.
2008-07-11 03:54:57 +00:00
known_align.ll
…
load2.ll
…
load3.ll
Teach instcombine's visitLoad to scan back several instructions
2008-10-15 23:19:35 +00:00
load.ll
Teach instcombine's visitLoad to scan back several instructions
2008-10-15 23:19:35 +00:00
loadstore-alignment.ll
Make instcombine ensure that all allocas are explicitly aligned at at
2009-01-13 20:18:38 +00:00
logical-select.ll
Handle the case where there is no "not". It is possible it got
2008-11-16 04:25:26 +00:00
malloc2.ll
…
malloc3.ll
…
malloc-free-delete.ll
…
malloc.ll
…
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
Implement PR2370: memmove(x,x,size) -> noop.
2008-05-28 05:30:41 +00:00
memset.ll
move lowering of llvm.memset -> store from simplify libcalls
2008-04-30 06:39:11 +00:00
mul-masked-bits.ll
Fix a bug in the ComputeMaskedBits logic for multiply.
2008-05-07 00:35:55 +00:00
mul.ll
Implement support for simplifying vector comparisons by 0.0 and 1.0 like we
2008-08-11 22:06:05 +00:00
multi-use-or.ll
now that all the pieces are in place, teach instcombine's
2009-01-31 08:40:03 +00:00
narrow.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
not-fcmp.ll
…
not.ll
Implement PR2298. This transforms:
2008-05-09 05:19:28 +00:00
or2.ll
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or-fcmp.ll
Combine (fcmp cc0 x, y) | (fcmp cc1 x, y) into a single fcmp when possible.
2008-10-14 18:44:08 +00:00
or-to-xor.ll
Use m_Specific() instead of double matching.
2008-12-01 08:09:47 +00:00
or.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
phi-merge.ll
…
phi.ll
Teach inst combine to merge GEPs through PHIs. This is really
2008-12-01 02:34:36 +00:00
pr2645-0.ll
Fix a vectorshuffle instcombine bug introduced by r55995.
2008-09-11 22:47:57 +00:00
pr2645-1.ll
Fix a vectorshuffle instcombine bug introduced by r55995.
2008-09-11 22:47:57 +00:00
pr2996.ll
Fix this recently moved code to use the correct type. CI is now a
2008-11-02 00:17:33 +00:00
preserve-sminmax.ll
Improve instcombine's handling of integer min and max in two ways:
2008-09-16 18:46:06 +00:00
README.txt
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rem.ll
Don't try to simplify urem and srem using arithmetic rules that don't work
2008-03-06 06:48:30 +00:00
sdiv-1.ll
Strengthen check for div inst-combining.
2008-11-30 04:33:53 +00:00
sdiv-2.ll
getSExtValue() doesn't work for ConstantInts with bitwidth > 64 bits. Use all
2008-11-30 12:38:24 +00:00
select.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
set.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
setcc-cast-cast.ll
Update old-style syntax in some "not grep" tests.
2008-05-01 23:50:07 +00:00
setcc-strength-reduce.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
sext-misc.ll
optimize a common idiom generated by clang for bitfield access, PR2638.
2008-08-06 07:35:52 +00:00
shift-simplify.ll
…
shift-sra.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
shift-trunc-shift.ll
…
shift.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
shl-icmp.ll
Don't do: "(X & 4) >> 1 == 2 --> (X & 4) == 4" if there are more than one uses of the shift result.
2008-04-23 00:38:06 +00:00
shl-trunc.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
shufflemask-undef.ll
Fix a shufflevector instcombine that was emitting invalid masks indices
2008-08-06 18:17:32 +00:00
signext.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
sink_instruction.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
sitofp.ll
Zap sitofp/fptoui pairs. In all cases when the sign difference
2008-08-06 05:13:06 +00:00
srem1.ll
Fix a bogus srem rule - a negative value srem'd by a power-of-2
2008-08-13 23:12:35 +00:00
srem-simplify-bug.ll
Correct the value of LowBits in srem and urem handling in
2008-05-06 00:51:48 +00:00
srem.ll
…
stacksaverestore.ll
optimize away stackrestore calls that have no intervening alloca or call.
2008-02-18 06:12:38 +00:00
store-merge.ll
…
store.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
sub.ll
Instcombine was illegally transforming -X/C into X/-C when either X or C
2008-11-30 03:42:12 +00:00
udiv_select_to_select_shift.ll
Fix PR2506 by being a bit more careful about reverse fact propagation when
2008-07-14 00:15:52 +00:00
udiv-simplify-bug-0.ll
Fix a mistake in the computation of leading zeros for udiv.
2008-05-02 21:30:02 +00:00
udiv-simplify-bug-1.ll
Chris prefers icmp/select over udiv!
2008-11-27 22:41:10 +00:00
urem-simplify-bug.ll
Fix an overaggressive SimplifyDemandedBits optimization on urem. This
2008-05-01 19:13:24 +00:00
urem.ll
…
vec_demanded_elts.ll
…
vec_extract_elt.ll
…
vec_insert_to_shuffle.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
vec_insertelt.ll
…
vec_narrow.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
vec_shuffle2.ll
Fixed optimization of combining two shuffles where the first shuffle inputs
2009-01-26 04:39:00 +00:00
vec_shuffle.ll
…
vector-srem.ll
…
volatile_store.ll
…
xor2.ll
…
xor-demorgans.ll
XFAIL this test. The xform was removed.
2009-01-04 06:32:28 +00:00
xor-undef.ll
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.
2008-03-25 20:07:13 +00:00
xor.ll
Remove llvm-upgrade and update tests.
2008-03-09 08:16:40 +00:00
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
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00
zext-fold.ll
Peer through sext/zext when looking for not(cmp).
2008-05-31 19:01:33 +00:00
zext-or-icmp.ll
Transform (zext (or (icmp), (icmp))) to (or (zext (cimp), (zext icmp))) if at least one of the (zext icmp) can be transformed to eliminate an icmp.
2008-03-24 00:21:34 +00:00
zext.ll
Remove llvm-upgrade and update test cases.
2008-03-01 09:15:35 +00:00

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.