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llvm-mirror/test/Transforms/InstCombine
Hal Finkel 502475d4f3 Make processing @llvm.assume more efficient by using operand bundles
There was an efficiency problem with how we processed @llvm.assume in
ValueTracking (and other places). The AssumptionCache tracked all of the
assumptions in a given function. In order to find assumptions relevant to
computing known bits, etc. we searched every assumption in the function. For
ValueTracking, that means that we did O(#assumes * #values) work in InstCombine
and other passes (with a constant factor that can be quite large because we'd
repeat this search at every level of recursion of the analysis).

Several of us discussed this situation at the last developers' meeting, and
this implements the discussed solution: Make the values that an assume might
affect operands of the assume itself. To avoid exposing this detail to
frontends and passes that need not worry about it, I've used the new
operand-bundle feature to add these extra call "operands" in a way that does
not affect the intrinsic's signature. I think this solution is relatively
clean. InstCombine adds these extra operands based on what ValueTracking, LVI,
etc. will need and then those passes need only search the users of the values
under consideration. This should fix the computational-complexity problem.

At this point, no passes depend on the AssumptionCache, and so I'll remove
that as a follow-up change.

Differential Revision: https://reviews.llvm.org/D27259

llvm-svn: 289755
2016-12-15 02:53:42 +00:00
..
ARM Enable simplify libcalls for ARM PCS 2016-09-13 12:10:14 +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
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 [InstCombine] limit icmp transform to ConstantInt (PR28011) 2016-06-06 16:56:57 +00:00
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
2006-10-26-VectorReassoc.ll
2006-11-10-ashr-miscompile.ll
2006-12-01-BadFPVectorXform.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
2006-12-05-fp-to-int-ext.ll
2006-12-08-Phi-ICmp-Op-Fold.ll
2006-12-08-Select-ICmp.ll
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
2007-02-01-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 [InstCombine] allow icmp (div X, Y), C folds for splat constant vectors 2016-08-31 21:57:21 +00:00
2007-03-25-BadShiftMask.ll update to use FileCheck and auto-generate checks 2016-08-09 19:42:52 +00:00
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
2007-09-17-AliasConstFold2.ll
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
2007-11-25-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
2008-01-06-CastCrash.ll
2008-01-06-VoidCast.ll
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
2008-01-29-AddICmp.ll [InstCombine] use m_APInt to allow icmp (add X, Y), C folds for splat constant vectors 2016-08-17 15:24:30 +00:00
2008-02-13-MulURem.ll
2008-02-16-SDivOverflow2.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
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-ShiftOneAndOne.ll update test to FileCheck 2016-06-05 16:29:15 +00:00
2008-07-08-SubAnd.ll
2008-07-08-VolatileLoadMerge.ll
2008-07-09-SubAndError.ll
2008-07-10-CastSextBool.ll update test to use FileCheck 2016-06-05 16:41:20 +00:00
2008-07-10-ICmpBinOp.ll
2008-07-11-RemAnd.ll
2008-07-13-DivZero.ll
2008-07-16-fsub.ll
2008-08-05-And.ll
2008-08-17-ICmpXorSignbit.ll [InstCombine] use m_APInt to allow icmp (xor X, Y), C folds for splat constant vectors 2016-08-18 14:10:48 +00:00
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
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
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 Remove the ScalarReplAggregates pass 2016-06-15 00:19:09 +00:00
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
2010-05-30-memcpy-Struct.ll
2010-11-01-lshr-mask.ll
2010-11-21-SizeZeroTypeGEP.ll
2010-11-23-Distributed.ll
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 Reapply "InstCombine: Reduce trunc (shl x, K) width." 2016-09-13 19:43:57 +00:00
2011-06-13-nsw-alloca.ll
2011-09-03-Trampoline.ll
2011-10-07-AlignPromotion.ll
2012-3-15-or-xor-constant.ll
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
2012-04-23-Neon-Intrinsics.ll
2012-04-24-vselect.ll
2012-04-30-SRem.ll
2012-05-28-select-hang.ll
2012-06-06-LoadOfPHIs.ll
2012-07-25-LoadPart.ll
2012-07-30-addrsp-bitcast.ll
2012-08-28-udiv_ashl.ll
2012-09-17-ZeroSizedAlloca.ll
2012-10-25-vector-of-pointers.ll
2012-12-14-simp-vgep.ll
2013-03-05-Combine-BitcastTy-Into-Alloca.ll
abs_abs.ll [ValueTracking] fix matchSelectPattern to allow vector splat folds of min/max/abs/nabs 2016-10-27 15:26:10 +00:00
abs-1.ll
add2.ll
add3.ll
add-shrink.ll
add-sitofp.ll
add.ll [InstCombine] use m_APInt to allow icmp eq (add X, C1), C2 folds for splat constant vectors 2016-08-03 22:08:44 +00:00
addnegneg.ll
AddOverFlow.ll
addrspacecast.ll Fix constant folding of addrspacecast of null 2016-05-21 00:14:04 +00:00
adjust-for-minmax.ll [InstCombine] canonicalize min/max constant to select's false value 2016-11-21 22:04:14 +00:00
alias-recursion.ll
align-2d-gep.ll
align-addr.ll
align-attr.ll Teach computeKnownBits to look through returned-argument functions 2016-07-11 02:25:14 +00:00
align-external.ll
aligned-altivec.ll
aligned-qpx.ll
all-bits-shift.ll InstCombine: Restrict computeKnownBits() on all Values to OptLevel > 2 2016-03-09 18:47:11 +00:00
alloca.ll
allocsize-32.ll Add the allocsize attribute to LLVM. 2016-04-12 01:05:35 +00:00
allocsize.ll Add the allocsize attribute to LLVM. 2016-04-12 01:05:35 +00:00
amdgcn-intrinsics.ll AMDGPU: Do basic folding of class intrinsic 2016-09-03 07:06:58 +00:00
and2.ll [InstCombine] add tests to show type limitations of InsertRangeTest and callers 2016-08-30 23:16:59 +00:00
and-compare.ll [InstCombine] use m_APInt to allow icmp (and X, Y), C folds for splat constant vectors 2016-08-28 18:18:00 +00:00
and-fcmp.ll [InstCombine] Simplify and correct folding fcmps with the same children 2016-06-29 20:10:17 +00:00
and-not-or.ll
and-or-and.ll
and-or-icmps.ll [InstCombine] consolidate some icmp+logic tests and improve checks 2016-06-20 18:40:37 +00:00
and-or-not.ll use FileCheck for tighter checking 2016-03-16 23:20:20 +00:00
and-or.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
and-xor-merge.ll
and-xor-or.ll
and.ll [InstCombine] allow vector types for constant folding / computeKnownBits (PR24942) 2016-09-16 21:20:36 +00:00
apint-add.ll [InstCombine] fold add(zext(xor X, C), C) --> sext X when C is INT_MIN in the source type 2016-07-19 22:09:34 +00:00
apint-and1.ll
apint-and2.ll
apint-and-compare.ll
apint-and-or-and.ll
apint-and-xor-merge.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
apint-call-cast-target.ll
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-or.ll
apint-rem1.ll
apint-rem2.ll
apint-select.ll [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) 2016-07-21 00:24:18 +00:00
apint-shift-simplify.ll
apint-shift.ll [InstCombine] use m_APInt to allow icmp (and (sh X, Y), C2), C1 folds for splat constant vectors 2016-09-07 22:33:03 +00:00
apint-shl-trunc.ll [InstCombine] use m_APInt to allow icmp (and (sh X, Y), C2), C1 folds for splat constant vectors 2016-09-07 22:33:03 +00:00
apint-sub.ll [InstCombine] update test to use FileCheck and auto-generate checks 2016-10-14 15:30:31 +00:00
apint-xor1.ll
apint-xor2.ll
assoc-cast-assoc.ll [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) 2016-07-21 00:24:18 +00:00
assume2.ll Make processing @llvm.assume more efficient by using operand bundles 2016-12-15 02:53:42 +00:00
assume-loop-align.ll
assume-redundant.ll Make processing @llvm.assume more efficient by using operand bundles 2016-12-15 02:53:42 +00:00
assume.ll Make processing @llvm.assume more efficient by using operand bundles 2016-12-15 02:53:42 +00:00
atomic.ll [PR29121] Don't fold if it would produce atomic vector loads or stores 2016-12-01 20:17:06 +00:00
badmalloc.ll
binop-cast.ll
bit-checks.ll [InstCombine] update to use FileCheck 2016-09-28 19:10:16 +00:00
bit-tracking.ll
bitcast-alias-function.ll
bitcast-bigendian.ll [InstCombine] regenerate checks 2016-09-12 00:12:56 +00:00
bitcast-bitcast.ll
bitcast-sext-vector.ll
bitcast-store.ll InstCombine: Don't combine loads/stores from swifterror to a new type 2016-09-10 18:14:57 +00:00
bitcast-vec-canon.ll
bitcast.ll InstCombine: Fold bitcast of vector to FP scalar 2016-12-07 20:56:11 +00:00
bitcount.ll
bitreverse-fold.ll Implement constant folding for bitreverse 2016-03-21 15:00:35 +00:00
bitreverse-hang.ll
bittest.ll
blend_x86.ll [InstCombine] canonicalize vector select with constant vector condition to shuffle 2016-09-16 22:16:18 +00:00
branch.ll
bswap-fold.ll
bswap-known-bits.ll
bswap.ll [InstCombine] Catch more bswap cases missed due to zext and truncs. 2016-05-26 14:58:51 +00:00
builtin-object-size-offset.ll Calculate __builtin_object_size when pointer depends on a condition 2016-04-13 12:25:25 +00:00
builtin-object-size-ptr.ll Reland r262337 "calculate builtin_object_size if arg is a removable pointer" 2016-03-09 14:12:47 +00:00
call2.ll
call_nonnull_arg.ll
call-cast-target-inalloca.ll
call-cast-target.ll
call-intrinsics.ll
call.ll Don't remove side effecting instructions due to ConstantFoldInstruction 2016-07-22 04:54:44 +00:00
canonicalize_branch.ll
cast_ptr.ll
cast-call-combine.ll
cast-callee-deopt-bundles.ll
cast-int-fcmp-eq-0.ll
cast-mul-select.ll
cast-set.ll auto-ggenerate checks 2016-07-16 16:24:06 +00:00
cast.ll [InstCombine] remove fold of an icmp pattern that should never happen 2016-09-01 14:20:43 +00:00
ceil.ll
compare-alloca.ll
compare-signs.ll [InstCombine] use m_APInt to allow icmp (trunc X, Y), C folds for splat constant vectors 2016-08-18 20:28:54 +00:00
compare-udiv.ll [InstCombine] use m_APInt to allow icmp (udiv X, Y), C folds for splat constant vectors 2016-08-18 17:55:59 +00:00
compare-unescaped.ll Fold compares irrespective of whether allocation can be elided 2016-05-03 14:58:21 +00:00
constant-expr-datalayout.ll
constant-fold-address-space-pointer.ll
constant-fold-alias.ll
constant-fold-compare.ll
constant-fold-gep.ll
constant-fold-hang.ll
constant-fold-math.ll
convergent.ll InstCombine: Don't strip convergent from intrinsic callsites 2016-06-20 19:04:44 +00:00
copysign.ll
cos-1.ll
cos-2.ll
cos-intrinsic.ll Propagate Undef in llvm.cos Intrinsic 2016-04-08 18:21:11 +00:00
CPP_min_max.ll
crash.ll
ctpop.ll
dce-iterate.ll
deadcode.ll
debug-line.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
debuginfo.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
default-alignment.ll
demand_shrink_nsw.ll
demorgan-zext.ll [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) 2016-07-21 00:24:18 +00:00
disable-simplify-libcalls.ll
distribute.ll
div-shift-crash.ll
div-shift.ll [InstCombine] canonicalize min/max constant to select's false value 2016-11-21 22:04:14 +00:00
div.ll [InstCombine] allow icmp (div X, Y), C folds for splat constant vectors 2016-08-31 21:57:21 +00:00
double-float-shrink-1.ll
double-float-shrink-2.ll
enforce-known-alignment.ll
err-rep-cold.ll
exact.ll [InstCombine] add test to show missing vector optimization; NFC 2016-11-26 16:13:23 +00:00
exp2-1.ll
exp2-2.ll
ExtractCast.ll
extractvalue.ll
fabs.ll transform obscured FP sign bit ops into a fabs/fneg using TLI hook 2016-06-02 20:01:37 +00:00
fast-math-scalarization.ll Fix an issue where fast math flags were dropped during scalarization. 2016-03-01 19:35:52 +00:00
fast-math.ll
fcmp-select.ll
fcmp-special.ll regenerate checks 2016-06-05 17:29:45 +00:00
fcmp.ll
fdiv.ll
ffs-1.ll
float-shrink-compare.ll
fmul.ll
fneg-ext.ll
fold-bin-operand.ll
fold-calls.ll
fold-fops-into-selects.ll
fold-phi-load-metadata.ll Don't passively concatenate MDNodes 2016-08-16 18:48:34 +00:00
fold-phi.ll
fold-sqrt-sqrtf.ll
fold-vector-select.ll
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll
fpextend_x86.ll
fpextend.ll
fprintf-1.ll [IR] Straighten out bundle overload of IRBuilder::CreateCall 2016-02-18 20:57:41 +00:00
fputs-1.ll
fputs-opt-size.ll Code size optimisation: don't rewrite fputs to fwrite when optimising for size 2016-07-07 13:56:23 +00:00
fsub.ll
fwrite-1.ll
gc.relocate.ll
gep-addrspace.ll
gep-sext.ll
gep-vector.ll [ConstantFold] Get the correct vector type when folding a getelementptr. 2016-10-28 00:53:16 +00:00
gepgep.ll
gepphigep.ll
getelementptr-folding.ll [ConstantFold] Fix incorrect index rewrites for GEPs 2016-05-26 07:08:05 +00:00
getelementptr.ll [InstCombine] use m_APInt to allow icmp (shl X, Y), C folds for splat constant vectors, part 1 2016-08-19 22:33:26 +00:00
hoist_instr.ll
icmp-div-constant.ll fix FileCheck variables for test added with r280677 2016-09-05 23:49:32 +00:00
icmp-logical.ll
icmp-range.ll
icmp-shl-nuw.ll [InstCombine] Fold nuw left-shifts in ugt/ule comparisons. 2016-11-01 19:19:29 +00:00
icmp-shr.ll [InstCombine] allow icmp (shr/shl) folds for vectors 2016-09-15 21:35:30 +00:00
icmp-vec.ll [InstCombine] use m_APInt to allow icmp ult X, C folds for splat constant vectors 2016-09-09 21:59:37 +00:00
icmp.ll [InstCombine] Ensure that truncated int types are legal. 2016-10-25 20:11:47 +00:00
idioms.ll
indexed-gep-compares.ll [InstCombine] Do not RAUW a constant GEP 2016-09-15 20:10:09 +00:00
inline-intrinsic-assert.ll
insert-const-shuf.ll [InstCombine] Fix for PR29124: reduce insertelements to shufflevector 2016-09-23 09:14:08 +00:00
insert-extract-shuffle.ll [InstCombine] avoid infinite loop from shuffle-extract-insert sequence (PR30923) 2016-11-10 00:15:14 +00:00
insert-val-extract-elem.ll Optimize store of "bitcast" from vector to aggregate. 2016-04-25 22:22:39 +00:00
IntPtrCast.ll
intrinsics.ll Make cltz and cttz zero undef when the operand cannot be zero in InstCombine 2016-08-18 20:43:50 +00:00
invariant.ll Revert "Revert "Invariant start/end intrinsics overloaded for address space"" 2016-08-13 23:31:24 +00:00
invoke.ll
isascii-1.ll
isdigit-1.ll
JavaCompare.ll
known_align.ll
LandingPadClauses.ll
lifetime-asan.ll Do not remove empty lifetime.start/lifetime.end ranges 2016-07-28 22:59:03 +00:00
lifetime.ll [PR27284] Reverse the ownership between DICompileUnit and DISubprogram. 2016-04-15 15:57:41 +00:00
load3.ll
load_combine_aa.ll
load-bitcast32.ll Re-apply r238452, the bug was in clang and was fixed in r260567. 2016-02-11 22:30:41 +00:00
load-bitcast64.ll Re-apply r238452, the bug was in clang and was fixed in r260567. 2016-02-11 22:30:41 +00:00
load-cmp.ll [InstCombine] regenerate checks 2016-05-02 15:21:41 +00:00
load-combine-metadata-2.ll
load-combine-metadata-3.ll
load-combine-metadata-4.ll
load-combine-metadata.ll [Verifier] Add verification for TBAA metadata 2016-12-11 20:07:15 +00:00
load-select.ll
load.ll InstCombine: Don't combine loads/stores from swifterror to a new type 2016-09-10 18:14:57 +00:00
loadstore-alignment.ll Fix known zero bits for addrspacecast. 2016-11-21 15:42:31 +00:00
loadstore-metadata.ll [Verifier] Add verification for TBAA metadata 2016-12-11 20:07:15 +00:00
log-pow-nofastmath.ll
log-pow.ll Don't remove side effecting instructions due to ConstantFoldInstruction 2016-07-22 04:54:44 +00:00
logical-select.ll [InstCombine] canonicalize vector select with constant vector condition to shuffle 2016-09-16 22:16:18 +00:00
lshr-phi.ll
malloc-free-delete.ll
masked_intrinsics.ll [InstCombine] Masked loads with undef masks can fold to normal loads 2016-07-14 06:58:42 +00:00
max-of-nots.ll [InstCombine] fix profitability equation for max-of-nots transform 2016-11-09 00:13:11 +00:00
maxnum.ll
mem-gep-zidx.ll Fix a typo in rL265762 2016-04-17 04:30:43 +00:00
mem-par-metadata-memcpy.ll [InstCombine] Preserve llvm.mem.parallel_loop_access metadata when replacing 2016-09-04 07:49:39 +00:00
memchr.ll [InstCombine] regenerate checks 2016-05-02 15:25:49 +00:00
memcmp-1.ll
memcmp-2.ll
memcpy_chk-1.ll
memcpy_chk-2.ll
memcpy-1.ll
memcpy-2.ll
memcpy-from-global.ll
memcpy-to-load.ll
memcpy.ll
memmove_chk-1.ll
memmove_chk-2.ll
memmove-1.ll
memmove-2.ll
memmove.ll
memset2.ll
memset_chk-1.ll Re-apply r238452, the bug was in clang and was fixed in r260567. 2016-02-11 22:30:41 +00:00
memset_chk-2.ll
memset-1.ll
memset-2.ll
memset.ll
merge-icmp.ll
min-positive.ll [InstCombine] allow (icmp sgt smin(PosA, B), 0) fold for vectors 2016-09-15 16:23:20 +00:00
minmax-fold.ll [InstCombine] canonicalize min/max constant to select's false value 2016-11-21 22:04:14 +00:00
minmax-fp.ll [InstCombine] auto-generate checks 2016-10-25 00:41:00 +00:00
minnum.ll
misc-2002.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
mul-masked-bits.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
mul.ll
multi-size-address-space-pointer.ll
multi-use-or.ll
narrow-switch.ll remove stale FIXME note from test; NFC 2016-12-12 16:20:21 +00:00
narrow.ll [InstCombine] allow more narrowing transforms for logic ops 2016-11-30 20:48:54 +00:00
neon-intrinsics.ll
no_cgscc_assert.ll
no-negzero.ll
non-integral-pointers.ll [InstCombine] Don't coerce non-integral pointers to integers 2016-08-06 02:58:48 +00:00
nonnull-attribute.ll
not-fcmp.ll
not.ll
nothrow.ll
nsw.ll
obfuscated_splat.ll
objsize-64.ll
objsize-address-space.ll
objsize-noverify.ll
objsize.ll
odr-linkage.ll
onehot_merge.ll
opaque.ll [InstCombine] Fix assertion when bitcast is converted to gep 2016-05-23 19:23:17 +00:00
or-fcmp.ll [InstCombine] Simplify and correct folding fcmps with the same children 2016-06-29 20:10:17 +00:00
or-to-xor.ll update tests to use FileCheck 2016-06-25 17:39:10 +00:00
or-xor.ll [InstCombine] add tests to show pattern matching failures due to commutation 2016-09-09 16:35:20 +00:00
or.ll [InstCombine] add tests to show pattern matching failures due to commutation 2016-09-09 16:35:20 +00:00
osx-names.ll
overflow-mul.ll
overflow.ll
OverlappingInsertvalues.ll
phi-load-metadata-2.ll
phi-load-metadata-3.ll
phi-load-metadata.ll
phi-merge-gep.ll
phi-preserve-ir-flags.ll [InstCombine] Preserve fast math flags when combining PHIs 2016-04-22 11:21:36 +00:00
phi-select-constexpr.ll
phi.ll Revert "[ValueTracking] Teach computeKnownBits for PHI nodes to compute sign bit for a recurrence with a NSW addition." 2016-06-29 04:57:00 +00:00
pow-1.ll [SLC] Emit an intrinsic instead of a libcall for pow. 2016-08-07 20:27:03 +00:00
pow-2.ll
pow-3.ll
pow-4.ll
pow-exp-nofastmath.ll
pow-exp.ll
pow-sqrt.ll [SimplifyLibCalls] Restore the old behaviour, emit a libcall. 2016-08-10 06:33:32 +00:00
pr2645-0.ll
pr2645-1.ll
pr2996.ll
pr12251.ll
pr12338.ll
pr17827.ll [InstCombine] use m_APInt to allow icmp ult X, C folds for splat constant vectors 2016-09-09 21:59:37 +00:00
pr19420.ll
pr20079.ll
pr20678.ll [ConstantFolding, ValueTracking] Fold constants involving bitcasts of ConstantVector 2016-05-04 06:13:33 +00:00
pr21199.ll
pr21210.ll [InstCombine] Sharpended test case in pr21210.ll 2016-04-27 17:19:54 +00:00
pr21651.ll [InstCombine] shrink switch conditions better (PR24766) 2016-06-30 14:51:21 +00:00
pr21891.ll
pr23751.ll
pr23809.ll
pr24354.ll
pr24605.ll
pr25342.ll [InstCombine] Resubmit the combine of A->B->A BitCast and fix for pr27996 2016-10-25 20:43:42 +00:00
pr25745.ll
pr26992.ll [InstCombine] Don't insert instructions before a catch switch 2016-03-19 04:39:52 +00:00
pr26993.ll [SimplifyLibCalls] Only consider sinpi/cospi functions within the same function 2016-03-19 04:53:02 +00:00
pr27236.ll [InstCombine] canonicalize min/max constant to select's false value 2016-11-21 22:04:14 +00:00
pr27332.ll [InstCombine] Don't transform compares of calls to functions named fabs{f,l,} 2016-04-15 17:21:03 +00:00
pr27703.ll [InstCombine] Resubmit the combine of A->B->A BitCast and fix for pr27996 2016-10-25 20:43:42 +00:00
pr27996.ll [InstCombine] Resubmit the combine of A->B->A BitCast and fix for pr27996 2016-10-25 20:43:42 +00:00
pr28143.ll [TargetLibraryInfo] Teach isValidProtoForLibFunc about tan 2016-06-15 16:47:23 +00:00
pr30929.ll [LibcallsShrinkWrap] This pass doesn't preserve the CFG. 2016-11-08 19:18:20 +00:00
PR30597.ll [InstCombine] Transform !range metadata to !nonnull when combining loads 2016-10-11 01:00:45 +00:00
preserve-sminmax.ll
prevent-cmp-merge.ll [InstCombine] Don't aggressively replace xor with icmp 2016-02-12 18:12:38 +00:00
printf-1.ll Optimize a printf with a double procent to putchar. 2016-05-09 14:36:16 +00:00
printf-2.ll [SimplifyLibCalls] Transform printf("%s", "a") -> putchar('a'). 2016-03-28 15:54:01 +00:00
printf-3.ll
ptr-int-cast.ll
puts-1.ll
range-check.ll
README.txt
rem.ll [InstCombine] use m_APInt to allow icmp eq (srem X, C1), C2 folds for splat constant vectors 2016-08-03 19:48:40 +00:00
round.ll
sdiv-1.ll
sdiv-2.ll
select_meta.ll [InstCombine] don't drop metadata in FoldOpIntoSelect() 2016-11-26 15:23:20 +00:00
select-2.ll
select-bitext.ll [InstCombine] add tests to show likely unwanted select widening; NFC 2016-11-18 23:22:00 +00:00
select-cmp-br.ll
select-cmp-cttz-ctlz.ll
select-crash-noverify.ll
select-crash.ll
select-extractelement.ll
select-implied.ll [ValueTracking] Improve isImpliedCondition for matching LHS and Imm RHSs. 2016-05-05 15:39:18 +00:00
select-load-call.ll
select-select.ll
select-with-bitwise-ops.ll [InstCombine] auto-generate checks for select+bitwise logic tests; NFC 2016-11-30 17:07:21 +00:00
select.ll [InstCombine] auto-generate checks for select+bitwise logic tests; NFC 2016-11-30 17:07:21 +00:00
set.ll fix checks 2016-06-05 17:54:56 +00:00
setcc-strength-reduce.ll
sext.ll [InstCombine] canonicalize min/max constant to select's false value 2016-11-21 22:04:14 +00:00
shift-add.ll [InstCombine] Folding of shifts by the sum of positive values 2016-11-01 15:40:30 +00:00
shift-shift.ll [InstCombine] consolidate tests for related bugs 2016-04-11 17:58:37 +00:00
shift-sra.ll
shift.ll [InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors 2016-09-12 16:25:41 +00:00
shufflemask-undef.ll
shufflevec-constant.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
sign-test-and-or.ll minimize tests and auto-generate checks 2016-07-20 17:58:20 +00:00
signed-comparison.ll [InstCombine] allow vector constants for cast+icmp fold 2016-06-04 22:04:05 +00:00
signext.ll auto-generate checks 2016-07-16 16:27:58 +00:00
simplify-demanded-bits-pointer.ll
simplify-libcalls.ll [TLI] isdigit / isascii / toascii param type should match return type (PR30484) 2016-09-23 18:44:09 +00:00
sincospi.ll
sink_instruction.ll [InstCombine] Allow sinking from unique predecessor with multiple edges 2016-08-22 18:21:56 +00:00
sink-into-catchswitch.ll [InstCombine] Don't sink an instr after a catchswitch 2016-04-01 17:28:17 +00:00
sitofp.ll
smax-icmp.ll [InstCombine] add tests for smax+icmp; NFC 2016-12-08 23:16:06 +00:00
smin-icmp.ll [InstCombine] add tests for smin+icmp; NFC 2016-12-07 18:56:55 +00:00
sprintf-1.ll Revert "[SimplifyLibCalls] sprintf doesn't copy null bytes" 2016-04-26 21:04:47 +00:00
sqrt-nofast.ll
sqrt.ll
srem1.ll
srem-simplify-bug.ll
srem.ll
stack-overalign.ll
stacksaverestore.ll [InstCombine] Be more conservative about removing stackrestore 2016-02-27 00:53:54 +00:00
statepoint.ll
store.ll
stpcpy_chk-1.ll
stpcpy_chk-2.ll
stpcpy-1.ll
stpcpy-2.ll
strcat-1.ll
strcat-2.ll
strcat-3.ll
strchr-1.ll
strchr-2.ll
strcmp-1.ll
strcmp-2.ll
strcpy_chk-1.ll
strcpy_chk-2.ll
strcpy_chk-64.ll
strcpy-1.ll
strcpy-2.ll
strcspn-1.ll
strcspn-2.ll
strlen-1.ll Simplify strlen to a subtraction for certain cases. 2016-04-13 14:31:06 +00:00
strlen-2.ll
strncat-1.ll
strncat-2.ll
strncat-3.ll
strncmp-1.ll
strncmp-2.ll
strncpy_chk-1.ll
strncpy_chk-2.ll
strncpy-1.ll
strncpy-2.ll
strpbrk-1.ll
strpbrk-2.ll
strrchr-1.ll
strrchr-2.ll
strspn-1.ll
strstr-1.ll
strstr-2.ll
strto-1.ll
struct-assign-tbaa.ll
sub-xor.ll [InstCombine] use m_APInt to allow sub with constant folds for splat vectors 2016-10-14 16:31:54 +00:00
sub.ll [InstCombine] use m_APInt to allow sub with constant folds for splat vectors 2016-10-14 16:31:54 +00:00
switch-constant-expr.ll [InstCombine] Fix constexpr issue in select combining 2016-10-12 10:20:15 +00:00
switch-truncate-crash.ll
tan-nofastmath.ll
tan.ll
tbaa-store-to-load.ll [Verifier] Add verification for TBAA metadata 2016-12-11 20:07:15 +00:00
toascii-1.ll
token.ll
trunc.ll [InstCombine] allow vector types for constant folding / computeKnownBits (PR24942) 2016-09-16 21:20:36 +00:00
type_pun.ll
udiv_select_to_select_shift.ll [InstCombine] update test to use FileCheck; NFC 2016-11-11 23:12:46 +00:00
udiv-simplify.ll [InstCombine] Teach the udiv folding logic how to handle constant expressions. 2016-09-26 12:07:23 +00:00
udivrem-change-width.ll
umax-icmp.ll [InstCombine] add tests for umax+icmp; NFC 2016-12-08 23:36:57 +00:00
umin-icmp.ll [InstCombine] add tests for umin+icmp; NFC 2016-12-08 23:44:58 +00:00
unordered-fcmp-select.ll
unpack-fca.ll [InstCombine] Don't unpack arrays that are too large (part 2). 2016-10-07 21:53:09 +00:00
urem-simplify-bug.ll
urem.ll [InstCombine] sub X, sext(bool Y) -> add X, zext(bool Y) 2016-10-14 15:24:31 +00:00
vararg.ll [InstCombine] Remove trivially empty va_start/va_end and va_copy/va_end ranges. 2016-05-10 09:24:49 +00:00
vec_demanded_elts.ll [InstCombine] Fixed bug introduced in r282237 2016-09-26 13:18:59 +00:00
vec_extract_2elts.ll
vec_extract_elt.ll
vec_extract_var_elt.ll
vec_insertelt.ll
vec_narrow.ll
vec_phi_extract.ll [InstCombine] scalarizePHI should not assume the code it sees has been CSE'd 2016-06-06 23:38:33 +00:00
vec_sext.ll [InstCombine] use m_APInt to allow icmp X, C folds for splat constant vectors 2016-09-12 16:25:41 +00:00
vec_shuffle.ll [InstCombine] regenerate checks; NFC 2016-11-09 22:21:58 +00:00
vector_gep1.ll
vector_gep2.ll
vector_insertelt_shuffle.ll [InstCombine] Fix for PR29124: reduce insertelements to shufflevector 2016-09-23 09:14:08 +00:00
vector-casts.ll clean up tests and auto-generate checks 2016-09-30 18:37:34 +00:00
vector-mul.ll
vector-srem.ll [InstCombine] Regenerate vector srem tests 2016-12-02 17:12:56 +00:00
vector-type.ll
vector-urem.ll [InstCombine] Add vector urem tests 2016-12-02 17:16:21 +00:00
volatile_store.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
vsx-unaligned.ll
weak-symbols.ll
win-math.ll
x86-avx2.ll [InstCombine][SSE] Added support to VPERMD/VPERMPS to shuffle combine to accept UNDEF elements. 2016-05-01 20:43:02 +00:00
x86-avx512.ll [X86][InstCombine] Handle demanded elements for operand of AVX-512 scalar floating point to integer conversion intrinsics. 2016-12-14 07:46:12 +00:00
x86-crc32-demanded.ll
x86-f16c.ll [InstCombine][X86] Regenerate SSE combine tests as part of setup for D17490 2016-04-19 12:56:46 +00:00
x86-fma.ll [X86][InstCombine] Add support for scalar FMA intrinsics to SimplifyDemandedVectorElts. 2016-12-11 08:54:52 +00:00
x86-insertps.ll [InstCombine] Fix for PR29124: reduce insertelements to shufflevector 2016-09-23 09:14:08 +00:00
x86-masked-memops.ll [InstCombine][X86] Regenerate masked memory op combine tests 2016-09-08 16:32:37 +00:00
x86-movmsk.ll [InstCombine][SSE] Add MOVMSK constant folding (PR27982) 2016-06-07 08:18:35 +00:00
x86-pshufb.ll [X86][InstCombine] Teach InstCombineCalls to turn pshufb intrinsic into a shufflevector if the indices are constant. 2016-12-11 00:23:50 +00:00
x86-sse2.ll [X86] Remove the scalar intrinsics for fadd/fsub/fdiv/fmul 2016-11-16 05:24:10 +00:00
x86-sse4a.ll [ConstantFold] Improve the bitcast folding logic for constant vectors. 2016-09-13 14:50:47 +00:00
x86-sse41.ll [InstCombine][SSE] Demanded vector elements for scalar intrinsics (Part 2 of 2) 2016-04-24 18:23:14 +00:00
x86-sse.ll [X86] Remove the scalar intrinsics for fadd/fsub/fdiv/fmul 2016-11-16 05:24:10 +00:00
x86-vector-shifts.ll [InstCombine][AVX-512] Teach InstCombineCalls how to handle the intrinsics for variable shift with 16-bit elements. 2016-11-18 06:04:33 +00:00
x86-vperm2.ll [InstCombine][X86] Regenerate vperm2f128/vperm2i128 combine tests 2016-09-08 16:30:46 +00:00
x86-vpermil.ll [AVX-512][InstCombine] Add 512-bit vpermilvar intrinsics to InstCombineCalls to match 128 and 256-bit. 2016-12-11 01:59:36 +00:00
x86-xop.ll [X86][InstCombine] Fix SimplifyDemandedVectorElts to handle frcz scalar intrinsics correctly. 2016-12-13 07:45:45 +00:00
xor2.ll [InstCombine] add tests to show pattern matching failures due to commutation 2016-09-09 16:35:20 +00:00
xor-undef.ll
xor.ll [InstCombine] use m_APInt to allow icmp (binop X, Y), C folds with constant splat vectors 2016-08-03 18:59:03 +00:00
zero-point-zero-add.ll [InstCombine] We folded an fcmp to an i1 instead of a vector of i1 2016-04-13 06:55:52 +00:00
zeroext-and-reduce.ll [InstCombine] LogicOpc (zext X), C --> zext (LogicOpc X, C) (PR28476) 2016-07-21 00:24:18 +00:00
zext-bool-add-sub.ll add more tests for PR30273 2016-09-12 22:28:29 +00:00
zext-fold.ll [InstCombine] regenerate checks 2016-04-05 17:24:54 +00:00
zext-or-icmp.ll [InstCombine] Refactor optimization of zext(or(icmp, icmp)) to enable more aggressive cast-folding 2016-08-03 19:30:35 +00:00
zext.ll [InstCombine] consolidate zext tests and auto-generate checks; NFC 2016-10-26 14:08:49 +00:00

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.