llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-10-07 05:55:44 +00:00

History

Chris Lattner 7a6aa1a391 Enhance a bunch of transformations in instcombine to start generating exact/nsw/nuw shifts and have instcombine infer them when it can prove that the relevant properties are true for a given shift without them. Also, a variety of refactoring to use the new patternmatch logic thrown in for good luck. I believe that this takes care of a bunch of related code quality issues attached to PR8862. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125267 91177308-0d34-0410-b5e6-96231b3b80d8		2011-02-10 05:36:31 +00:00
..
2002-03-11-InstCombineHang.ll
2002-05-14-SubFailure.ll
2002-08-02-CastTest.ll
2002-12-05-MissedConstProp.ll
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	remove a use of llvm-dis	2010-11-30 02:04:15 +00:00
2003-09-09-VolatileLoadElim.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-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	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
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
2006-11-03-Memmove64.ll
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
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	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
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
2007-09-10-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-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
2008-02-13-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
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	My auto-simplifier noticed that ((X/Y)*Y)/Y occurs several times in SPEC	2011-01-28 16:51:11 +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
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
2009-03-18-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
2010-11-01-lshr-mask.ll	Have SimplifyBinOp dispatch Xor, Add and Sub to the corresponding methods	2010-12-20 14:47:04 +00:00
2010-11-21-SizeZeroTypeGEP.ll	If a GEP index simply advances by multiples of a type of zero size,	2010-11-22 16:32:50 +00:00
2010-11-23-Distributed.ll	Add a generic expansion transform: A op (B op' C) -> (A op B) op' (A op C)	2010-12-22 13:36:08 +00:00
add2.ll
add3.ll
add-shrink.ll
add-sitofp.ll
add.ll	Recognize and simplify	2011-01-30 22:01:13 +00:00
addnegneg.ll
adjust-for-sminmax.ll
align-2d-gep.ll
align-addr.ll
align-external.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-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
badmalloc.ll
binop-cast.ll
bit-checks.ll
bit-tracking.ll
bitcast-sext-vector.ll
bitcast-store.ll
bitcast-vec-canon.ll
bitcast-vector-fold.ll
bitcast.ll
bitcount.ll
bittest.ll
bswap-fold.ll
bswap.ll
call2.ll
call-cast-target.ll
call-intrinsics.ll
call.ll
canonicalize_branch.ll
cast_ptr.ll
cast-mul-select.ll
cast-set.ll
cast.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
compare-signs.ll
constant-fold-compare.ll
constant-fold-gep.ll	implement constant folding support for an exotic constant expr:	2011-01-06 06:19:46 +00:00
CPP_min_max.ll
crash.ll	fix PR9013, an infinite loop in instcombine.	2011-01-21 05:29:50 +00:00
dce-iterate.ll
deadcode.ll
dg.exp
div.ll
enforce-known-alignment.ll
exact.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
extractvalue.ll	Transform (extractvalue (load P), ...) to (load (gep P, 0, ...)) if the load has no other uses, shrinking the load.	2010-11-29 21:56:20 +00:00
fcmp-select.ll
fcmp-special.ll
fold-bin-operand.ll
fold-calls.ll
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll
fpextend.ll
fsub.ll
gepgep.ll
getelementptr.ll
hoist_instr.ll
icmp.ll	merge two tests.	2011-02-09 17:06:41 +00:00
idioms.ll
IntPtrCast.ll
intrinsics.ll	X86 supports i8/i16 overflow ops (except i8 multiplies), we should	2010-12-19 20:03:11 +00:00
invariant.ll
JavaCompare.ll
known_align.ll
load3.ll
load-cmp.ll
load-select.ll
load.ll
loadstore-alignment.ll
logical-select.ll
lshr-phi.ll
malloc2.ll
malloc3.ll
malloc-free-delete.ll
malloc.ll
memcpy-to-load.ll
memcpy.ll
memmove.ll
memset2.ll	Test case for r122215 when InstCombine optimizes memset	2010-12-20 01:06:23 +00:00
memset_chk.ll
memset.ll
mul-masked-bits.ll
mul.ll
multi-use-or.ll
narrow.ll
neon-intrinsics.ll
no-negzero.ll
not-fcmp.ll
not.ll
nothrow.ll
nsw.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
objsize.ll	Revert 122959, it needs more thought. Add it back to README.txt with additional notes.	2011-01-07 20:42:20 +00:00
odr-linkage.ll
or-fcmp.ll	Just because we have determined that an (fcmp \| fcmp) is true for A < B,	2011-01-21 19:39:42 +00:00
or-to-xor.ll
or.ll	Teach InstCombine to merge (icmp ult (X + CA), C1) \| (icmp eq X, C2) into (icmp ult (X + CA), C1 + 1) if C2 + CA == C1.	2010-12-20 16:18:51 +00:00
overflow.ll	recognize an unsigned add with overflow idiom into uadd.	2010-12-19 19:37:52 +00:00
phi-merge-gep.ll
phi.ll	enhance FoldOpIntoPhi in instcombine to try harder when a phi has	2011-01-16 05:28:59 +00:00
pr2645-0.ll
pr2645-1.ll
pr2996.ll
pr8547.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
preserve-sminmax.ll
ptr-int-cast.ll
README.txt
rem.ll	InstCombine: Add a missing irem identity (X % X -> 0).	2010-11-17 19:11:46 +00:00
sdiv-1.ll
sdiv-2.ll
sdiv-shift.ll
select-2.ll
select-crash.ll
select-load-call.ll
select.ll	Clean up the tests a little, make sure we match an instruction in the right	2011-01-28 05:13:17 +00:00
set.ll
setcc-strength-reduce.ll
sext.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
shift-sra.ll
shift.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
shufflemask-undef.ll
shufflevec-constant.ll
signed-comparison.ll
signext.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
simplify-demanded-bits-pointer.ll
sink_instruction.ll
sitofp.ll
sqrt.ll
srem1.ll
srem-simplify-bug.ll
srem.ll
stack-overalign.ll
stacksaverestore.ll
store.ll
strcpy_chk.ll
sub.ll	more cleanups, notably bitcast isn't used for "signed to unsigned type	2011-02-10 05:17:27 +00:00
trunc.ll	Enhance a bunch of transformations in instcombine to start generating	2011-02-10 05:36:31 +00:00
udiv_select_to_select_shift.ll
udiv-simplify-bug-0.ll
udiv-simplify-bug-1.ll
udivrem-change-width.ll
urem-simplify-bug.ll
urem.ll
vec_demanded_elts.ll	Teach instcombine about the rest of the SSE and SSE2 conversion	2011-01-10 07:19:37 +00:00
vec_extract_elt.ll
vec_insertelt.ll
vec_narrow.ll
vec_sext.ll	Add vector versions of some existing scalar transforms to aid codegen in matching psign & pblend operations to the IR produced by clang/gcc for their C idioms.	2010-12-17 23:12:19 +00:00
vec_shuffle.ll	Change instcombine's getShuffleMask to represent undef with negative values.	2010-10-29 22:03:05 +00:00
vector-casts.ll
vector-srem.ll
volatile_store.ll
xor2.ll
xor-undef.ll
xor.ll
zero-point-zero-add.ll
zeroext-and-reduce.ll
zext-bool-add-sub.ll
zext-fold.ll
zext-or-icmp.ll
zext.ll

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.