llvm-6502/test/Transforms/InstCombine
Dan Gohman fd3daa74c2 Generalize the zext(trunc(t) & C) instcombine to work even with
C is not a low-bits mask, and add a similar instcombine for
zext((trunc(t) & C) ^ C).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73705 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18 16:30:21 +00:00
..
2002-03-11-InstCombineHang.ll
2002-05-14-SubFailure.ll
2002-05-14-TouchDeletedInst.ll
2002-08-02-CastTest.ll
2002-09-17-GetElementPtrCrash.ll
2002-12-05-MissedConstProp.ll
2003-05-26-CastMiscompile.ll
2003-05-27-ConstExprCrash.ll
2003-06-05-BranchInvertInfLoop.ll
2003-06-22-ConstantExprCrash.ll
2003-07-21-ExternalConstant.ll
2003-08-12-AllocaNonNull.ll
2003-09-09-VolatileLoadElim.ll
2003-10-23-InstcombineNullFail.ll
2003-10-29-CallSiteResolve.ll
2003-11-03-VarargsCallBug.ll
2003-11-13-ConstExprCastCall.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-InstCombineCrash.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
2006-02-07-SextZextCrash.ll
2006-02-13-DemandedMiscompile.ll
2006-02-28-Crash.ll
2006-03-30-ExtractElement.ll
2006-04-01-InfLoop.ll
2006-04-28-ShiftShiftLongLong.ll
2006-05-04-DemandedBitCrash.ll
2006-05-06-Infloop.ll
2006-06-28-infloop.ll
2006-09-11-EmptyStructCrash.ll
2006-09-15-CastToBool.ll
2006-10-19-SignedToUnsignedCastAndConst-2.ll
2006-10-19-SignedToUnsignedCastAndConst.ll
2006-10-20-mask.ll
2006-10-26-VectorReassoc.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
2006-11-03-Memmove64.ll
2006-11-10-ashr-miscompile.ll
2006-11-27-XorBug.ll
2006-12-01-BadFPVectorXform.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
2006-12-05-fp-to-int-ext.ll
2006-12-08-ICmp-Combining.ll
2006-12-08-Phi-ICmp-Op-Fold.ll
2006-12-08-Select-ICmp.ll
2006-12-10-ICmp-GEP-GEP.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
2007-01-27-AndICmp.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
2007-03-25-BadShiftMask.ll
2007-03-25-DoubleShift.ll
2007-03-26-BadShiftMask.ll
2007-03-27-PR1280.ll
2007-03-31-InfiniteLoop.ll
2007-04-04-BadFoldBitcastIntoMalloc.ll
2007-04-08-SingleEltVectorCrash.ll
2007-05-04-Crash.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
2007-09-05-EqualGEP.ll
2007-09-10-AliasConstFold.ll
2007-09-11-Trampoline.ll
2007-09-17-AliasConstFold2.ll
2007-10-10-EliminateMemCpy.ll
2007-10-12-Crash.ll
2007-10-28-EmptyField.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
2008-01-06-CastCrash.ll
2008-01-06-VoidCast.ll
2008-01-13-AndCmpCmp.ll
2008-01-13-NoBitCastAttributes.ll
2008-01-14-DoubleNest.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
2008-02-04-GEPIdxBug.ll
2008-02-13-MulURem.ll
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
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 Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
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
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
2009-02-20-InstCombine-SROA.ll
2009-02-21-LoadCST.ll
2009-02-25-CrashZeroSizeArray.ll
2009-03-02-VarLengthArrayGEP.ll
2009-03-18-vector-ashr-crash.ll
2009-03-20-AShrOverShift.ll
2009-03-24-InfLoop.ll
2009-04-06-GEP-Index-Crash.ll
2009-04-07-MulPromoteToI96.ll Instcombine should not promote whole computation trees to "strange" 2009-04-08 05:41:03 +00:00
2009-05-23-FCmpToICmp.ll Fix bug in FoldFCmp_IntToFP_Cst. If inttofp is a uintofp, use unsigned instead of signed integer constant. 2009-05-22 23:10:53 +00:00
2009-06-11-StoreAddrSpace.ll fix testcase to properly check for the patch in r73195. 2009-06-15 05:46:02 +00:00
2009-06-16-SRemDemandedBits.ll Correct an accidental duplication of the test (patch doesn't handle 2009-06-17 03:05:00 +00:00
add2.ll
add-shrink.ll
add-sitofp.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
add.ll
addnegneg.ll
adjust-for-sminmax.ll
align-2d-gep.ll
align-addr.ll
align-inc.ll
alloca.ll
and2.ll
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.ll
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
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
apint-xor1.ll
apint-xor2.ll
apint-zext1.ll
apint-zext2.ll
ashr-nop.ll
binop-cast.ll
bit-tracking.ll
bitcast-gep.ll
bitcast-vector-fold.ll
bitcount.ll
bittest.ll
bswap-fold.ll
bswap.ll
call2.ll
call-cast-target.ll
call-intrinsics.ll
call.ll
canonicalize_branch.ll
cast2.ll
cast_ld_addr_space.ll
cast_ptr.ll
cast-and-cast.ll
cast-cast-to-and.ll
cast-load-gep.ll
cast-malloc.ll
cast-mul-select.ll
cast-propagate.ll
cast-set.ll
cast-sext-zext.ll
cast-store-gep.ll
cast.ll
constant-fold-ptr-casts.ll Revert 71165. It did more than just revert 71158 and it introduced 2009-05-07 19:46:24 +00:00
CPP_min_max.ll
dce-iterate.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
deadcode.ll
dg.exp
div-cmp-overflow.ll
div.ll
enforce-known-alignment.ll
extractvalue.ll
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll
fpextend.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
fsub-fsub.ll Don't do (x - (y - z)) --> (x + (z - y)) on floating-point types, because 2009-06-12 19:23:25 +00:00
GEPIdxCanon.ll
getelementptr_cast.ll
getelementptr_const.ll
getelementptr_index.ll
getelementptr_promote.ll
getelementptr-setcc.ll
getelementptr-seteq.ll
getelementptr.ll
hoist_instr.ll
icmp.ll
IntPtrCast.ll
JavaCompare.ll
known_align.ll
load2.ll
load3.ll
load.ll
loadstore-alignment.ll
logical-select.ll
lshr-phi.ll Teach ValueTracking a new way to analyze PHI nodes, and and teach 2009-05-21 02:28:33 +00:00
malloc2.ll
malloc3.ll
malloc-free-delete.ll
malloc.ll
memcpy-to-load.ll
memmove.ll
memset.ll
mul-masked-bits.ll
mul.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
multi-use-or.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
narrow.ll
not-fcmp.ll
not.ll
nothrow.ll calls in nothrow functions can be marked nothrow even if the callee 2009-05-13 17:39:14 +00:00
odr-linkage.ll Add a new "available_externally" linkage type. This is intended 2009-04-13 05:44:34 +00:00
or2.ll
or-fcmp.ll
or-to-xor.ll
or.ll
phi-merge.ll
phi.ll
pr2645-0.ll
pr2645-1.ll
pr2996.ll
preserve-sminmax.ll
ptr-int-cast.ll
README.txt
rem.ll
sdiv-1.ll
sdiv-2.ll
select-2.ll
select-load-call.ll Testcase for r73506 2009-06-16 17:23:25 +00:00
select.ll
set.ll
setcc-cast-cast.ll
setcc-strength-reduce.ll
sext-misc.ll
shift-simplify.ll
shift-sra.ll
shift-trunc-shift.ll
shift.ll
shl-icmp.ll
shl-trunc.ll
shufflemask-undef.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
shufflevec-constant.ll
signed-comparison.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
signext.ll
sink_instruction.ll
sitofp.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
srem1.ll
srem-simplify-bug.ll
srem.ll
stack-overalign.ll
stacksaverestore.ll
store-merge.ll
store.ll
sub.ll
trunc-mask-ext.ll Generalize the zext(trunc(t) & C) instcombine to work even with 2009-06-18 16:30:21 +00:00
udiv_select_to_select_shift.ll
udiv-simplify-bug-0.ll
udiv-simplify-bug-1.ll
urem-simplify-bug.ll
urem.ll
vec_demanded_elts-2.ll
vec_demanded_elts-3.ll PR4340: Run SimplifyDemandedVectorElts on insertelement instructions; 2009-06-06 20:08:03 +00:00
vec_demanded_elts.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
vec_extract_elt.ll
vec_insert_to_shuffle.ll
vec_insertelt.ll
vec_narrow.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
vec_shuffle2.ll
vec_shuffle.ll
vector-casts-0.ll Generalize a few more instcombines to be vector/scalar-independent. 2009-06-16 19:55:29 +00:00
vector-casts-1.ll Generalize a few more instcombines to be vector/scalar-independent. 2009-06-16 19:55:29 +00:00
vector-srem.ll
volatile_store.ll
xor2.ll
xor-demorgans.ll
xor-undef.ll
xor.ll
zero-point-zero-add.ll Split the Add, Sub, and Mul instruction opcodes into separate 2009-06-04 22:49:04 +00:00
zeroext-and-reduce.ll
zext-fold.ll
zext-or-icmp.ll
zext.ll

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.