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dcc9291851
llvm-6502/test/Transforms/InstCombine
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Jingyue Wu dcc9291851 [InstCombine] mark ADD with nuw if no unsigned overflow 
Summary:
As a starting step, we only use one simple heuristic: if the sign bits
of both a and b are zero, we can prove "add a, b" do not unsigned
overflow, and thus convert it to "add nuw a, b".

Updated all affected tests and added two new tests (@zero_sign_bit and
@zero_sign_bit2) in AddOverflow.ll

Test Plan: make check-all

Reviewers: eliben, rafael, meheff, chandlerc

Reviewed By: chandlerc

Subscribers: chandlerc, llvm-commits

Differential Revision: http://reviews.llvm.org/D4144

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211084 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-17 00:42:07 +00:00
..
2002-03-11-InstCombineHang.ll
2002-05-14-SubFailure.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2002-08-02-CastTest.ll
2002-12-05-MissedConstProp.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2003-05-26-CastMiscompile.ll
2003-05-27-ConstExprCrash.ll
2003-06-05-BranchInvertInfLoop.ll
2003-07-21-ExternalConstant.ll
2003-08-12-AllocaNonNull.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2003-09-09-VolatileLoadElim.ll
2003-10-29-CallSiteResolve.ll
2003-11-03-VarargsCallBug.ll
2004-01-13-InstCombineInvokePHI.ll
2004-02-23-ShiftShiftOverflow.ll
2004-03-13-InstCombineInfLoop.ll
2004-04-04-InstCombineReplaceAllUsesWith.ll
2004-05-07-UnsizedCastLoad.ll
2004-07-27-ConstantExprMul.ll
2004-08-09-RemInfLoop.ll
2004-08-10-BoolSetCC.ll
2004-09-20-BadLoadCombine2.ll
2004-09-20-BadLoadCombine.ll
2004-09-28-BadShiftAndSetCC.ll
2004-11-22-Missed-and-fold.ll
2004-11-27-SetCCForCastLargerAndConstant.ll
2004-12-08-RemInfiniteLoop.ll
2005-03-04-ShiftOverflow.ll
2005-04-07-UDivSelectCrash.ll
2005-06-15-DivSelectCrash.ll
2005-06-15-ShiftSetCCCrash.ll
2005-06-16-RangeCrash.ll
2005-06-16-SetCCOrSetCCMiscompile.ll
2005-07-07-DeadPHILoop.ll
2006-02-13-DemandedMiscompile.ll
2006-02-28-Crash.ll
2006-03-30-ExtractElement.ll
2006-04-28-ShiftShiftLongLong.ll
2006-05-04-DemandedBitCrash.ll
2006-09-15-CastToBool.ll
2006-10-19-SignedToUnsignedCastAndConst-2.ll
2006-10-20-mask.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2006-10-26-VectorReassoc.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2006-11-10-ashr-miscompile.ll
2006-12-01-BadFPVectorXform.ll
2006-12-05-fp-to-int-ext.ll
2006-12-08-Phi-ICmp-Op-Fold.ll
2006-12-08-Select-ICmp.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2006-12-15-Range-Test.ll
2006-12-23-Select-Cmp-Cmp.ll
2007-01-13-ExtCompareMiscompile.ll
2007-01-14-FcmpSelf.ll
2007-01-18-VectorInfLoop.ll
2007-01-27-AndICmp.ll InstCombine: add more transforms 2013-07-09 07:50:59 +00:00
2007-02-01-LoadSinkAlloca.ll
2007-02-07-PointerCast.ll
2007-02-23-PhiFoldInfLoop.ll
2007-03-13-CompareMerge.ll
2007-03-19-BadTruncChangePR1261.ll
2007-03-21-SignedRangeTest.ll
2007-03-25-BadShiftMask.ll
2007-03-25-DoubleShift.ll
2007-03-26-BadShiftMask.ll
2007-04-08-SingleEltVectorCrash.ll
2007-05-10-icmp-or.ll
2007-05-14-Crash.ll
2007-05-18-CastFoldBug.ll
2007-06-06-AshrSignBit.ll
2007-06-21-DivCompareMiscomp.ll
2007-08-02-InfiniteLoop.ll
2007-09-10-AliasConstFold.ll Reject alias to undefined symbols in the verifier. 2014-03-12 20:15:49 +00:00
2007-09-17-AliasConstFold2.ll Reject alias to undefined symbols in the verifier. 2014-03-12 20:15:49 +00:00
2007-10-10-EliminateMemCpy.ll
2007-10-12-Crash.ll
2007-10-28-stacksave.ll
2007-10-31-RangeCrash.ll
2007-10-31-StringCrash.ll
2007-11-07-OpaqueAlignCrash.ll
2007-11-15-CompareMiscomp.ll
2007-11-22-IcmpCrash.ll
2007-11-25-CompatibleAttributes.ll
2007-12-10-ConstFoldCompare.ll
2007-12-12-GEPScale.ll
2007-12-16-AsmNoUnwind.ll
2007-12-18-AddSelCmpSub.ll
2007-12-28-IcmpSub2.ll
2008-01-06-BitCastAttributes.ll Change behavior of calling bitcasted alias functions. 2013-07-30 20:45:05 +00:00
2008-01-06-CastCrash.ll
2008-01-06-VoidCast.ll Change behavior of calling bitcasted alias functions. 2013-07-30 20:45:05 +00:00
2008-01-13-AndCmpCmp.ll
2008-01-13-NoBitCastAttributes.ll
2008-01-14-VarArgTrampoline.ll
2008-01-21-MismatchedCastAndCompare.ll
2008-01-21-MulTrunc.ll
2008-01-27-FloatSelect.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2008-01-29-AddICmp.ll
2008-02-13-MulURem.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2008-02-16-SDivOverflow2.ll
2008-02-16-SDivOverflow.ll
2008-02-23-MulSub.ll
2008-02-28-OrFCmpCrash.ll
2008-03-13-IntToPtr.ll
2008-04-22-ByValBitcast.ll
2008-04-28-VolatileStore.ll
2008-04-29-VolatileLoadDontMerge.ll
2008-04-29-VolatileLoadMerge.ll
2008-05-08-LiveStoreDelete.ll
2008-05-08-StrLenSink.ll
2008-05-09-SinkOfInvoke.ll
2008-05-17-InfLoop.ll
2008-05-18-FoldIntToPtr.ll
2008-05-22-IDivVector.ll
2008-05-22-NegValVector.ll
2008-05-23-CompareFold.ll
2008-05-31-AddBool.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
2008-05-31-Bools.ll
2008-06-05-ashr-crash.ll
2008-06-08-ICmpPHI.ll
2008-06-13-InfiniteLoopStore.ll
2008-06-13-ReadOnlyCallStore.ll
2008-06-19-UncondLoad.ll
2008-06-21-CompareMiscomp.ll
2008-06-24-StackRestore.ll
2008-07-08-AndICmp.ll
2008-07-08-ShiftOneAndOne.ll
2008-07-08-SubAnd.ll
2008-07-08-VolatileLoadMerge.ll
2008-07-09-SubAndError.ll
2008-07-10-CastSextBool.ll
2008-07-10-ICmpBinOp.ll
2008-07-11-RemAnd.ll
2008-07-13-DivZero.ll
2008-07-16-fsub.ll
2008-07-16-sse2_storel_dq.ll
2008-08-05-And.ll
2008-08-17-ICmpXorSignbit.ll
2008-09-02-VectorCrash.ll
2008-09-29-FoldingOr.ll
2008-10-11-DivCompareFold.ll
2008-10-23-ConstFoldWithoutMask.ll
2008-11-01-SRemDemandedBits.ll
2008-11-08-FCmp.ll
2008-11-20-DivMulRem.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2008-11-27-IDivVector.ll
2008-11-27-MultiplyIntVec.ll
2008-11-27-UDivNegative.ll
2008-12-17-SRemNegConstVec.ll
2009-01-05-i128-crash.ll
2009-01-08-AlignAlloca.ll
2009-01-16-PointerAddrSpace.ll Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
2009-01-19-fmod-constant-float-specials.ll
2009-01-19-fmod-constant-float.ll
2009-01-24-EmptyStruct.ll
2009-01-31-InfIterate.ll
2009-01-31-Pressure.ll
2009-02-04-FPBitcast.ll
2009-02-11-NotInitialized.ll
2009-02-20-InstCombine-SROA.ll
2009-02-21-LoadCST.ll
2009-02-25-CrashZeroSizeArray.ll
2009-03-18-vector-ashr-crash.ll
2009-03-20-AShrOverShift.ll
2009-03-24-InfLoop.ll
2009-04-07-MulPromoteToI96.ll
2009-05-23-FCmpToICmp.ll
2009-06-11-StoreAddrSpace.ll
2009-06-16-SRemDemandedBits.ll
2009-07-02-MaskedIntVector.ll
2009-12-17-CmpSelectNull.ll
2010-01-28-NegativeSRem.ll
2010-03-03-ExtElim.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2010-05-30-memcpy-Struct.ll
2010-11-01-lshr-mask.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2010-11-21-SizeZeroTypeGEP.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2010-11-23-Distributed.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2011-02-14-InfLoop.ll
2011-03-08-SRemMinusOneBadOpt.ll
2011-05-02-VectorBoolean.ll
2011-05-13-InBoundsGEP.ll
2011-05-28-swapmulsub.ll
2011-06-13-nsw-alloca.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
2011-09-03-Trampoline.ll
2011-10-07-AlignPromotion.ll
2012-3-15-or-xor-constant.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
2012-6-7-vselect-bitcast.ll
2012-01-11-OpaqueBitcastCrash.ll
2012-02-13-FCmp.ll
2012-02-28-ICmp.ll
2012-03-10-InstCombine.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-04-23-Neon-Intrinsics.ll AArch64/ARM64: move ARM64 into AArch64's place 2014-05-24 12:50:23 +00:00
2012-04-24-vselect.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-04-30-SRem.ll
2012-05-27-Negative-Shift-Crash.ll
2012-05-28-select-hang.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-06-06-LoadOfPHIs.ll
2012-07-25-LoadPart.ll
2012-07-30-addrsp-bitcast.ll Allow aliases to be unnamed_addr. 2014-06-06 01:20:28 +00:00
2012-08-28-udiv_ashl.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-09-17-ZeroSizedAlloca.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-09-24-MemcpyFromGlobalCrash.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
2012-10-25-vector-of-pointers.ll
2012-12-14-simp-vgep.ll
2013-03-05-Combine-BitcastTy-Into-Alloca.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
abs_abs.ll This removes TODO added in http://reviews.llvm.org/D3658 2014-06-12 14:06:00 +00:00
abs-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
add2.ll Add a testcase where there is an overflow when combining two constants. 2014-06-05 21:29:49 +00:00
add3.ll
add4.ll InstCombine: Refactor fmul/fdiv combines to handle vectors. 2014-01-19 13:36:27 +00:00
add-shrink.ll Convert test to FileCheck. 2014-06-02 21:23:54 +00:00
add-sitofp.ll [InstCombine] mark ADD with nuw if no unsigned overflow 2014-06-17 00:42:07 +00:00
add.ll
addnegneg.ll
AddOverFlow.ll [InstCombine] mark ADD with nuw if no unsigned overflow 2014-06-17 00:42:07 +00:00
addrspacecast.ll InstCombine: Canonicalize addrspacecast between different element types 2014-06-06 21:52:55 +00:00
adjust-for-sminmax.ll
align-2d-gep.ll
align-addr.ll Teach InstCombineLoadCast about address spaces. 2013-09-03 21:05:48 +00:00
align-external.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
alloca.ll InstCombine: don't drop 'inalloca' in PromoteCastOfAllocation (PR19569) 2014-04-28 17:40:03 +00:00
and2.ll InstCombine: Simplify if(x!=0 && x!=-1). 2013-08-16 00:15:20 +00:00
and-compare.ll
and-fcmp.ll
and-not-or.ll
and-or-and.ll
and-or-not.ll
and-or.ll
and-xor-merge.ll
and-xor-or.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
and.ll InstCombine: add more transforms 2013-07-09 07:50:59 +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 Change behavior of calling bitcasted alias functions. 2013-07-30 20:45:05 +00:00
apint-cast-and-cast.ll
apint-cast-cast-to-and.ll
apint-cast.ll
apint-div1.ll
apint-div2.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 Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
apint-shift-simplify.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
apint-shift.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
apint-shl-trunc.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
apint-sub.ll
apint-xor1.ll
apint-xor2.ll
apint-zext1.ll
apint-zext2.ll
ashr-nop.ll
atomic.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
badmalloc.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
binop-cast.ll
bit-checks.ll
bit-tracking.ll
bitcast-alias-function.ll Allow alias to point to an arbitrary ConstantExpr. 2014-06-03 02:41:57 +00:00
bitcast-bigendian.ll Fix big-endian handling of integer-to-vector bitcasts in InstCombine 2013-08-12 07:26:09 +00:00
bitcast-sext-vector.ll
bitcast-store.ll [InstCombine] Don't fold bitcast into store if it would need addrspacecast 2014-03-25 17:21:41 +00:00
bitcast-vec-canon.ll
bitcast-vec-uniform.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
bitcast-vector-fold.ll Add newlines at end of test files, no functionality change 2013-07-13 22:00:58 +00:00
bitcast.ll InstCombine: Don't allow turning vector-of-pointer loads into vector-of-integer. 2013-09-19 20:59:04 +00:00
bitcount.ll
bittest.ll
blend_x86.ll Post-commit fixes for r209643 2014-05-27 16:54:33 +00:00
bswap-fold.ll
bswap.ll
call2.ll
call-cast-target-inalloca.ll IR: Conservatively verify inalloca arguments 2014-04-30 17:22:00 +00:00
call-cast-target.ll Don't refuse to transform constexpr(call(arg, ...)) to call(constexpr(arg), ...)) just because the function has multiple return values even if their return types are the same. Patch by Eduard Burtescu! 2014-01-18 22:47:12 +00:00
call-intrinsics.ll
call.ll Cleanup handling of constant function casts. 2013-09-17 21:10:14 +00:00
canonicalize_branch.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
cast_ptr.ll Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
cast-call-combine.ll Make sure that value handle users see the transformation of an indirect call to a direct call. This is important for the CallGraph iteration. Patch by Björn Steinbrink! 2014-02-20 23:00:15 +00:00
cast-mul-select.ll
cast-set.ll Add CHECK-LABELs 2014-01-22 22:32:58 +00:00
cast.ll Add back commit r210029. 2014-06-02 22:01:04 +00:00
ceil.ll Allow constant folding of ceil function whenever feasible 2014-03-24 04:36:06 +00:00
compare-signs.ll InstCombine: fold (A >> C) == (B >> C) --> (A^B) < (1 << C) for constant Cs. 2013-11-16 16:00:48 +00:00
constant-expr-datalayout.ll
constant-fold-address-space-pointer.ll Canonicalize addrspacecast ConstExpr between different pointer types 2014-06-15 21:40:57 +00:00
constant-fold-compare.ll
constant-fold-gep.ll Fix another constant folding address space place I missed. 2013-11-04 20:46:52 +00:00
constant-fold-math.ll ConstantFolding: Also fold the vector overloads of our math intrinsics. 2014-03-05 19:41:48 +00:00
copysign.ll Allow constant folding of copysign 2014-03-06 05:32:52 +00:00
cos-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
cos-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
CPP_min_max.ll
crash.ll
dce-iterate.ll
deadcode.ll
debug-line.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
debuginfo.ll Debug Info: update testing cases to specify the debug info version number. 2013-11-22 21:49:45 +00:00
devirt.ll
disable-simplify-libcalls.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
div-shift-crash.ll Revert r185257 (InstCombine: Be more agressive optimizing 'udiv' instrs with 'select' denoms) 2013-07-02 05:21:11 +00:00
div-shift.ll InstSimplify: X >> X -> 0 2013-07-09 22:01:22 +00:00
div.ll Optimize integral reciprocal (udiv 1, x and sdiv 1, x) to not use division. This fires exactly once in a clang bootstrap, but covers a few different results from http://www.cs.utah.edu/~regehr/souper/ 2014-05-14 03:03:05 +00:00
double-float-shrink-1.ll Disable transforms that introduce calls to exp10*() on Linux due to 2013-12-28 02:40:19 +00:00
double-float-shrink-2.ll
enforce-known-alignment.ll Add enforce known alignment test with address space 2013-08-21 18:54:53 +00:00
err-rep-cold.ll Add the cold attribute to error-reporting call sites 2013-11-17 02:06:35 +00:00
exact.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
exp2-1.ll SimplifyLibCalls: Push TLI through the exp2->ldexp transform. 2014-02-04 20:27:23 +00:00
exp2-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
ExtractCast.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
extractvalue.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
fast-math.ll InstCombine: Refactor fmul/fdiv combines to handle vectors. 2014-01-19 13:36:27 +00:00
fcmp-select.ll
fcmp-special.ll
fcmp.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
fdiv.ll Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators. 2014-01-20 07:44:53 +00:00
ffs-1.ll [InstCombine] mark ADD with nuw if no unsigned overflow 2014-06-17 00:42:07 +00:00
float-shrink-compare.ll Enable double to float shrinking optimizations for binary functions like 'fmin/fmax'. Fix radar:15283121 2013-12-16 22:42:40 +00:00
fmul.ll Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators. 2014-01-20 07:44:53 +00:00
fneg-ext.ll Preserve fast-math flags when folding (fsub x, (fneg y)) to (fadd x, y). 2013-07-30 23:53:17 +00:00
fold-bin-operand.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
fold-calls.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
fold-fops-into-selects.ll InstCombine: call FoldOpIntoSelect for all floating binops, not just fmul 2013-07-20 07:13:13 +00:00
fold-phi.ll
fold-sqrt-sqrtf.ll
fold-vector-select.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll Fix more instances of dropped fast math flags when optimizing FADD instructions. All found by inspection (aka grep). 2014-01-18 00:48:14 +00:00
fpextend_x86.ll Rein in overzealous InstCombine of fptrunc(OP(fpextend, fpextend)). 2013-11-28 21:38:05 +00:00
fpextend.ll Rein in overzealous InstCombine of fptrunc(OP(fpextend, fpextend)). 2013-11-28 21:38:05 +00:00
fprintf-1.ll Fix broken FileCheck prefix 2014-02-26 19:51:08 +00:00
fputs-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
fsub.ll
fwrite-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
gep-addrspace.ll Fix PR19270 - type mismatch caused by invalid optimization. 2014-04-03 17:51:58 +00:00
gepgep.ll
gepphigep.ll Add support for combining GEPs across PHI nodes 2014-05-29 20:29:47 +00:00
getelementptr.ll InstCombine: Canonicalize addrspacecast between different element types 2014-06-06 21:52:55 +00:00
hoist_instr.ll
icmp-logical.ll InstCombine: allow unmasked icmps to be combined with logical ops 2013-09-04 11:57:17 +00:00
icmp.ll Look through addrspacecasts when turning ptr comparisons into 2014-06-09 19:20:29 +00:00
idioms.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
insert-extract-shuffle.ll InstCombine: form shuffles from wider range of insert/extractelements 2014-03-07 10:24:44 +00:00
IntPtrCast.ll
intrinsics.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
invariant.ll
invoke.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
isascii-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
isdigit-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
JavaCompare.ll
known_align.ll
LandingPadClauses.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
load3.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
load-addrspace-cast.ll Fix a bug in InstCombine where we would incorrectly attempt to construct a 2014-03-13 22:51:43 +00:00
load-cmp.ll Use right address space size in InstCombineCompares 2013-09-30 21:11:01 +00:00
load-select.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
load.ll
loadstore-alignment.ll
logical-select.ll
lshr-phi.ll
malloc-free-delete.ll Treat nothrow forms of ::operator delete and ::operator delete[] as 2013-07-21 23:11:42 +00:00
memcmp-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcmp-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcpy_chk-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcpy_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcpy-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcpy-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memcpy-from-global.ll InstCombine: Canonicalize addrspacecast between different element types 2014-06-06 21:52:55 +00:00
memcpy-to-load.ll
memcpy.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
memmove_chk-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memmove_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memmove-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memmove-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memmove.ll
memset2.ll
memset_chk-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memset_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memset-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memset-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
memset.ll
merge-icmp.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
mul-masked-bits.ll
mul.ll InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors. 2014-01-19 15:24:22 +00:00
multi-size-address-space-pointer.ll Teach InstCombine about address spaces 2013-08-21 19:53:10 +00:00
multi-use-or.ll
narrow.ll
neon-intrinsics.ll
no-negzero.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
not-fcmp.ll
not.ll
nothrow.ll
nsw.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
obfuscated_splat.ll
objsize-64.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
objsize-address-space.ll Add addrspacecast instruction. 2013-11-15 01:34:59 +00:00
objsize.ll Change objectsize intrinsic to accept different address spaces. 2013-10-07 18:06:48 +00:00
odr-linkage.ll
onehot_merge.ll InstCombine: Replace a hand-rolled version of isKnownToBeAPowerOfTwo with the real thing. 2014-01-19 16:48:41 +00:00
or-fcmp.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
or-to-xor.ll
or-xor.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
or.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
osx-names.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
overflow-mul.ll Recognize test for overflow in integer multiplication. 2014-04-13 18:23:41 +00:00
overflow.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
OverlappingInsertvalues.ll [InstCombine] Some cleanup in optimization of redundant insertvalue instructions. 2014-05-08 19:50:24 +00:00
phi-merge-gep.ll
phi-select-constexpr.ll Don't use isNullValue to evaluate ConstantExpr 2013-12-06 21:48:36 +00:00
phi.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
pow-1.ll Change math intrinsic attributes from readonly to readnone. These 2014-03-06 00:18:15 +00:00
pow-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
pow-3.ll Adds missing TLI check for library simplification of 2013-08-19 06:55:47 +00:00
pr2645-0.ll
pr2645-1.ll
pr2996.ll
pr8547.ll Add newlines at end of test files, no functionality change 2013-07-13 22:00:58 +00:00
pr12251.ll
pr12338.ll
pr17827.ll Conservative fix for PR17827 - don't optimize a shift + and + compare sequence where the shift is logical unless the comparison is unsigned 2013-12-02 18:43:59 +00:00
pr19420.ll Revert "Revert r206045, "Fix shift by constants for vector."" 2014-04-14 21:50:37 +00:00
PR7357.ll
preserve-sminmax.ll
printf-1.ll Fix broken FileCheck prefixes 2014-02-26 22:29:11 +00:00
printf-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
ptr-int-cast.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
puts-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
README.txt
rem.ll Add back commit r210029. 2014-06-02 22:01:04 +00:00
round.ll Allow constant folding of round function whenever feasible 2014-03-07 04:36:21 +00:00
sdiv-1.ll
sdiv-2.ll
select-2.ll Fix all the remaining lost-fast-math-flags bugs I've been able to find. The most important of these are cases in the generic logic for combining BinaryOperators. 2014-01-20 07:44:53 +00:00
select-crash.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
select-extractelement.ll Scalarize select vector arguments when extracted. 2013-11-04 20:36:06 +00:00
select-load-call.ll
select-select.ll Remove a very old instcombine where we would turn sequences of selects into 2014-02-12 23:54:07 +00:00
select.ll [InstCombine] mark ADD with nuw if no unsigned overflow 2014-06-17 00:42:07 +00:00
set.ll
setcc-strength-reduce.ll
sext.ll Add back commit r210029. 2014-06-02 22:01:04 +00:00
shift-sra.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
shift.ll Revert "Revert r206045, "Fix shift by constants for vector."" 2014-04-14 21:50:37 +00:00
shufflemask-undef.ll
shufflevec-constant.ll
sign-test-and-or.ll InstCombine: Teach icmp merging about the equivalence of bit tests and UGE/ULT with a power of 2. 2014-02-11 21:09:03 +00:00
signed-comparison.ll
signext.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
simplify-demanded-bits-pointer.ll
simplify-libcalls.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
sincospi.ll ARM64: initial backend import 2014-03-29 10:18:08 +00:00
sink_instruction.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
sitofp.ll
sprintf-1.ll Fix broken FileCheck prefixes 2014-02-26 22:29:11 +00:00
sqrt.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
srem1.ll
srem-simplify-bug.ll
srem.ll
stack-overalign.ll
stacksaverestore.ll
store.ll TBAA: handle scalar TBAA format and struct-path aware TBAA format. 2013-09-27 18:34:27 +00:00
stpcpy_chk-1.ll Change objectsize intrinsic to accept different address spaces. 2013-10-07 18:06:48 +00:00
stpcpy_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
stpcpy-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
stpcpy-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcat-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcat-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcat-3.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strchr-1.ll Add strchr(p, 0) -> p + strlen(p) to SimplifyLibCalls 2014-02-04 05:55:16 +00:00
strchr-2.ll
strcmp-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcmp-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcpy_chk-1.ll Change objectsize intrinsic to accept different address spaces. 2013-10-07 18:06:48 +00:00
strcpy_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcpy_chk-64.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcpy-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcpy-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcspn-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strcspn-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strlen-1.ll Fold strlen(expr ? "str1" : "str2") to x ? len1 : len2. This fires about 330 times in a bootstrap of clang. 2014-05-02 04:11:45 +00:00
strlen-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncat-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncat-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncat-3.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncmp-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncmp-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncpy_chk-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncpy_chk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncpy-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strncpy-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strpbrk-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strpbrk-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strrchr-1.ll Fixing a corner-case bug in strchr and strrchr lib call optimizations where 2013-08-15 20:58:59 +00:00
strrchr-2.ll
strspn-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strstr-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strstr-2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
strto-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
struct-assign-tbaa.ll TBAA: handle scalar TBAA format and struct-path aware TBAA format. 2013-09-27 18:34:27 +00:00
sub-xor.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
sub.ll InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors. 2014-01-19 15:24:22 +00:00
toascii-1.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
trunc.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
udiv_select_to_select_shift.ll
udiv-simplify-bug-0.ll
udiv-simplify-bug-1.ll
udivrem-change-width.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
urem-simplify-bug.ll
urem.ll
vec_demanded_elts.ll Also handle ConstantAggregateZero when optimizing vpermilvar*. 2014-04-29 22:20:40 +00:00
vec_extract_2elts.ll
vec_extract_elt.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
vec_extract_var_elt.ll InstCombine: Don't try to use aggregate elements of ConstantExprs. 2014-01-24 19:02:37 +00:00
vec_insertelt.ll Convert tests to FileCheck 2013-08-28 23:04:41 +00:00
vec_narrow.ll
vec_phi_extract.ll InstCombine: Teach most integer add/sub/mul/div combines how to deal with vectors. 2014-01-19 15:24:22 +00:00
vec_sext.ll InstCombine: Modernize a bunch of cast combines. 2014-01-19 20:05:13 +00:00
vec_shuffle.ll Fix the case when reordering shuffle and binop produces a constant. 2014-05-14 09:05:09 +00:00
vector_gep1.ll
vector_gep2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
vector-casts.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
vector-mul.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
vector-srem.ll
vector-type.ll
volatile_store.ll
weak-symbols.ll Catch more CHECK that can be converted to CHECK-LABEL in Transforms for easier debugging. No functionality change. 2013-07-14 01:50:49 +00:00
win-math.ll SimplifyLibCalls: When emitting an overloaded fp function check that it's available. 2013-08-31 18:19:35 +00:00
x86-crc32-demanded.ll
xor2.ll Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change. 2013-07-14 01:42:54 +00:00
xor-undef.ll
xor.ll
zero-point-zero-add.ll
zeroext-and-reduce.ll
zext-bool-add-sub.ll Add back commit r210029. 2014-06-02 22:01:04 +00:00
zext-fold.ll
zext-or-icmp.ll
zext.ll InstCombine: Modernize a bunch of cast combines. 2014-01-19 20:05:13 +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.