llvm-6502/test/Transforms/InstCombine
Dan Gohman 704b6980b8 Constant-fold ptrtoint+add+inttoptr to gep when the pointer is an
array and the add is within range. This helps simplify expressions
expanded by ScalarEvolutionExpander.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71158 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-07 14:24:56 +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
2006-11-03-Memmove64.ll
2006-11-10-ashr-miscompile.ll
2006-11-27-XorBug.ll
2006-12-01-BadFPVectorXform.ll
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 Reinstate this optimization, but without the miscompile. Thanks to Bill for 2008-08-06 04:54:03 +00:00
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 Reinstate this optimization to fold icmp of xor when possible. Don't try to 2009-01-31 21:30:05 +00:00
2008-09-02-VectorCrash.ll Don't crash when trying to constant fold a vector with some elements that can't 2008-09-03 05:54:33 +00:00
2008-09-29-FoldingOr.ll Fix misoptimization of: xor i1 (icmp eq (X, C1), icmp s[lg]t (X, C2)) 2008-09-30 06:08:34 +00:00
2008-10-11-DivCompareFold.ll Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changes 2008-10-11 22:55:00 +00:00
2008-10-23-ConstFoldWithoutMask.ll Don't try to create a mask when we don't need one. Fixes a crash. 2008-10-24 06:14:27 +00:00
2008-11-01-SRemDemandedBits.ll Fix demanded bits analysis with srem by negative number. Based on a patch 2008-11-02 02:41:50 +00:00
2008-11-08-FCmp.ll If the LHS of the FCMP is coming from a UIToFP instruction, then we don't want 2008-11-09 04:26:50 +00:00
2008-11-20-DivMulRem.ll Optimize (x/y)*y into x-(x%y) in general. Div and rem are about the same, and 2008-11-21 07:33:58 +00:00
2008-11-27-IDivVector.ll Add a couple of missed optimizations on integer vectors. Multiply and divide 2008-11-27 20:21:08 +00:00
2008-11-27-MultiplyIntVec.ll Add a couple of missed optimizations on integer vectors. Multiply and divide 2008-11-27 20:21:08 +00:00
2008-11-27-UDivNegative.ll Chris prefers icmp/select over udiv! 2008-11-27 22:41:10 +00:00
2008-12-17-SRemNegConstVec.ll Make all the vector elements positive in an srem of constant vector. 2008-12-18 06:31:11 +00:00
2009-01-05-i128-crash.ll make m_ConstantInt(int64_t) safely match ConstantInt's that are larger than i64. 2009-01-05 23:45:50 +00:00
2009-01-08-AlignAlloca.ll Make instcombine ensure that all allocas are explicitly aligned at at 2009-01-13 20:18:38 +00:00
2009-01-16-PointerAddrSpace.ll Fix PR3335 by not turning a store to one address space into a store to another. 2009-01-16 20:12:52 +00:00
2009-01-19-fmod-constant-float-specials.ll Do not use host floating point types when emitting 2009-01-21 20:32:55 +00:00
2009-01-19-fmod-constant-float.ll Calls to fmod, it turns out, are constant-folded by 2009-01-20 21:58:13 +00:00
2009-01-24-EmptyStruct.ll testcase for PR3381. 2009-01-24 17:16:04 +00:00
2009-01-31-InfIterate.ll reduce testcase. 2009-02-02 06:55:45 +00:00
2009-01-31-Pressure.ll Reinstate this optimization to fold icmp of xor when possible. Don't try to 2009-01-31 21:30:05 +00:00
2009-02-04-FPBitcast.ll Allow the inverse transform x86_fp80 -> i80 (also 2009-02-04 11:17:06 +00:00
2009-02-20-InstCombine-SROA.ll rename a function to indicate that it checks for profitability as well 2009-02-21 00:46:50 +00:00
2009-02-21-LoadCST.ll Don't sign extend the char when expanding char -> int during 2009-02-21 20:50:42 +00:00
2009-02-25-CrashZeroSizeArray.ll Fix PR3667 2009-02-25 18:20:01 +00:00
2009-03-02-VarLengthArrayGEP.ll Fix PR3694: add an instcombine micro-optimization that helps 2009-03-02 09:18:21 +00:00
2009-03-18-vector-ashr-crash.ll Fix PR3826 - InstComb assert with vector shift, by not calling ComputeNumSignBits on a vector. 2009-03-18 16:32:19 +00:00
2009-03-20-AShrOverShift.ll Fix instcombine to not introduce undefined shifts when merging two 2009-03-20 22:41:15 +00:00
2009-03-24-InfLoop.ll Fix PR3874 by restoring a condition I removed, but making it more 2009-03-25 00:28:58 +00:00
2009-04-06-GEP-Index-Crash.ll fix rdar://6762290, a crash compiling cxx filt with clang. 2009-04-07 05:03:34 +00:00
2009-04-07-MulPromoteToI96.ll Instcombine should not promote whole computation trees to "strange" 2009-04-08 05:41:03 +00:00
add2.ll
add-shrink.ll
add-sitofp.ll
add.ll
addnegneg.ll
adjust-for-sminmax.ll Improve instcombine's handling of integer min and max in two ways: 2008-09-16 18:46:06 +00:00
align-2d-gep.ll
align-addr.ll
align-inc.ll Change these tests to use regular loads instead of llvm.x86.sse2.loadu.dq. 2009-02-16 00:44:23 +00:00
alloca.ll
and2.ll
and-compare.ll
and-fcmp.ll - Somehow I forgot about one / une. 2008-10-14 18:13:38 +00:00
and-not-or.ll simplify these patterns using m_Specific. No need to grep for 2008-12-01 05:16:26 +00:00
and-or-and.ll
and-or-not.ll
and-or.ll Implement ((A|B)&1)|(B&-2) -> (A&1) | B transformation. This also takes care of 2008-12-01 01:07:11 +00:00
and-xor-merge.ll
and.ll
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 Instcombine was illegally transforming -X/C into X/-C when either X or C 2008-11-30 03:42:12 +00:00
apint-xor1.ll
apint-xor2.ll
apint-zext1.ll
apint-zext2.ll
ashr-nop.ll Fix a ValueTracking rule: RHS means operand 1, not 0. Add a simple 2009-02-24 02:00:40 +00:00
binop-cast.ll
bit-tracking.ll
bitcast-gep.ll Fix part 3/2 of PR3290, making instcombine zap (gep(bitcast)) when possible. 2009-01-09 05:44:56 +00:00
bitcast-vector-fold.ll
bitcount.ll
bittest.ll
bswap-fold.ll
bswap.ll rewrite bswap matching to be more general, allowing arbitrary 2008-10-05 02:13:19 +00:00
call2.ll
call-cast-target.ll
call-intrinsics.ll
call.ll
canonicalize_branch.ll
cast2.ll
cast_ld_addr_space.ll Instrcombine should not change load(cast p) to cast(load p) if the cast 2009-02-07 22:19:29 +00:00
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 Fix PR3452 (an infinite loop bootstrapping) by disabling the recent 2009-01-31 19:05:27 +00:00
cast-store-gep.ll Make InstCombineStoreToCast handle aggregates more aggressively, 2009-01-24 01:00:13 +00:00
cast.ll Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type. 2009-01-16 02:11:43 +00:00
constant-fold-ptr-casts.ll Constant-fold ptrtoint+add+inttoptr to gep when the pointer is an 2009-05-07 14:24:56 +00:00
CPP_min_max.ll
dce-iterate.ll make sure to set Changed=true when instcombine hacks on the code, 2009-01-31 07:04:22 +00:00
deadcode.ll
dg.exp
div-cmp-overflow.ll Fix an icmp+sdiv optimization to check for and handle an overflow 2008-09-10 23:30:57 +00:00
div.ll
enforce-known-alignment.ll Change the argument type in this test to something less convoluted, 2009-02-18 04:25:04 +00:00
extractvalue.ll
fold-vector-zero.ll
fp-ret-bitcast.ll
fpcast.ll
fpextend.ll
GEPIdxCanon.ll Remove GCSE and LoadVN from the testsuite. 2008-08-16 00:00:54 +00:00
getelementptr_cast.ll
getelementptr_const.ll Remove GCSE and LoadVN from the testsuite. 2008-08-16 00:00:54 +00:00
getelementptr_index.ll
getelementptr_promote.ll On 64-bit targets, change 32-bit getelementptr indices to be 64-bit 2008-09-11 23:06:38 +00:00
getelementptr-setcc.ll
getelementptr-seteq.ll
getelementptr.ll
hoist_instr.ll
icmp.ll Implement rdar://6480391, extending of equality icmp's to avoid a truncation. 2009-01-09 07:47:06 +00:00
IntPtrCast.ll
JavaCompare.ll
known_align.ll
load2.ll
load3.ll Teach instcombine's visitLoad to scan back several instructions 2008-10-15 23:19:35 +00:00
load.ll Teach instcombine's visitLoad to scan back several instructions 2008-10-15 23:19:35 +00:00
loadstore-alignment.ll Make instcombine ensure that all allocas are explicitly aligned at at 2009-01-13 20:18:38 +00:00
logical-select.ll Handle the case where there is no "not". It is possible it got 2008-11-16 04:25:26 +00:00
malloc2.ll
malloc3.ll
malloc-free-delete.ll
malloc.ll
memcpy-to-load.ll
memmove.ll
memset.ll
mul-masked-bits.ll
mul.ll Implement support for simplifying vector comparisons by 0.0 and 1.0 like we 2008-08-11 22:06:05 +00:00
multi-use-or.ll now that all the pieces are in place, teach instcombine's 2009-01-31 08:40:03 +00:00
narrow.ll
not-fcmp.ll
not.ll
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 Combine (fcmp cc0 x, y) | (fcmp cc1 x, y) into a single fcmp when possible. 2008-10-14 18:44:08 +00:00
or-to-xor.ll Use m_Specific() instead of double matching. 2008-12-01 08:09:47 +00:00
or.ll
phi-merge.ll
phi.ll Teach inst combine to merge GEPs through PHIs. This is really 2008-12-01 02:34:36 +00:00
pr2645-0.ll Fix a vectorshuffle instcombine bug introduced by r55995. 2008-09-11 22:47:57 +00:00
pr2645-1.ll Fix a vectorshuffle instcombine bug introduced by r55995. 2008-09-11 22:47:57 +00:00
pr2996.ll Fix this recently moved code to use the correct type. CI is now a 2008-11-02 00:17:33 +00:00
preserve-sminmax.ll Improve instcombine's handling of integer min and max in two ways: 2008-09-16 18:46:06 +00:00
ptr-int-cast.ll canonicalize inttoptr and ptrtoint instructions which cast pointers 2009-03-24 18:35:40 +00:00
README.txt
rem.ll
sdiv-1.ll Strengthen check for div inst-combining. 2008-11-30 04:33:53 +00:00
sdiv-2.ll getSExtValue() doesn't work for ConstantInts with bitwidth > 64 bits. Use all 2008-11-30 12:38:24 +00:00
select-2.ll Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1. 2009-03-31 20:42:45 +00:00
select.ll
set.ll
setcc-cast-cast.ll
setcc-strength-reduce.ll
sext-misc.ll optimize a common idiom generated by clang for bitfield access, PR2638. 2008-08-06 07:35:52 +00:00
shift-simplify.ll
shift-sra.ll
shift-trunc-shift.ll
shift.ll two changes: 2009-03-24 18:15:30 +00:00
shl-icmp.ll
shl-trunc.ll
shufflemask-undef.ll Fix a shufflevector instcombine that was emitting invalid masks indices 2008-08-06 18:17:32 +00:00
shufflevec-constant.ll Add suppport for ConstantExprs of shufflevectors whose result type is not equal to the 2009-02-12 21:28:33 +00:00
signed-comparison.ll Add several more icmp simplifications. Transform signed comparisons 2009-04-25 17:12:48 +00:00
signext.ll
sink_instruction.ll
sitofp.ll Zap sitofp/fptoui pairs. In all cases when the sign difference 2008-08-06 05:13:06 +00:00
srem1.ll Fix a bogus srem rule - a negative value srem'd by a power-of-2 2008-08-13 23:12:35 +00:00
srem-simplify-bug.ll
srem.ll
stack-overalign.ll Add a testcase for the problem fixed in r65289. 2009-02-24 02:17:42 +00:00
stacksaverestore.ll
store-merge.ll
store.ll
sub.ll Instcombine was illegally transforming -X/C into X/-C when either X or C 2008-11-30 03:42:12 +00:00
udiv_select_to_select_shift.ll
udiv-simplify-bug-0.ll
udiv-simplify-bug-1.ll Chris prefers icmp/select over udiv! 2008-11-27 22:41:10 +00:00
urem-simplify-bug.ll
urem.ll
vec_demanded_elts-2.ll APInt'fy SimplifyDemandedVectorElts so it can analyze vectors with more than 64 elements. 2009-02-03 10:05:09 +00:00
vec_demanded_elts.ll
vec_extract_elt.ll
vec_insert_to_shuffle.ll
vec_insertelt.ll
vec_narrow.ll
vec_shuffle2.ll Fixed optimization of combining two shuffles where the first shuffle inputs 2009-01-26 04:39:00 +00:00
vec_shuffle.ll
vector-srem.ll
volatile_store.ll
xor2.ll
xor-demorgans.ll XFAIL this test. The xform was removed. 2009-01-04 06:32:28 +00:00
xor-undef.ll
xor.ll
zero-point-zero-add.ll
zeroext-and-reduce.ll
zext-fold.ll
zext-or-icmp.ll
zext.ll commit a tweaked version of Daniel's patch for PR3599. We now 2009-02-17 20:47:23 +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.