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llvm-project/llvm/test/Transforms/InstCombine
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Wojciech Matyjewicz 309e5a723b 1. "Upgrage" comments. 
2. Using zero-extended value of Scale and unsigned division is safe provided
   that Scale doesn't have the sign bit set.
   Previously these 2 instructions:
        %p = bitcast [100 x {i8,i8,i8}]* %x to i8*
        %q = getelementptr i8* %p, i32 -4
   were combined into:
        %q = getelementptr [100 x { i8, i8, i8 }]* %x, i32 0,
               i32 1431655764, i32 0
   what was incorrect.

llvm-svn: 44936
2007-12-12 15:21:32 +00:00
..
2002-03-11-InstCombineHang.ll
…
2002-05-14-SubFailure.ll
don't use 'not' when we can use a positive test
2007-03-28 01:43:43 +00:00
2002-05-14-TouchDeletedInst.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2002-08-02-CastTest.ll
For PR1319:
2007-04-14 20:13:02 +00:00
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
For PR1319:
2007-04-15 07:38:21 +00:00
2003-08-12-AllocaNonNull.ll
For PR1319:
2007-04-14 20:13:02 +00:00
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.llx
…
2004-08-10-BoolSetCC.ll
Changes to fix problems with "make check". Apparently you can redefine
2007-04-14 22:51:29 +00:00
2004-09-20-BadLoadCombine2.llx
For PR1319:
2007-04-14 20:13:02 +00:00
2004-09-20-BadLoadCombine.llx
For PR1319:
2007-04-14 20:13:02 +00:00
2004-09-28-BadShiftAndSetCC.llx
…
2004-11-22-Missed-and-fold.ll
…
2004-11-27-SetCCForCastLargerAndConstant.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2004-12-08-InstCombineCrash.ll
…
2004-12-08-RemInfiniteLoop.ll
…
2005-03-04-ShiftOverflow.ll
For PR1319:
2007-04-14 20:13:02 +00:00
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
For PR1319:
2007-04-14 20:13:02 +00:00
2005-07-07-DeadPHILoop.ll
…
2006-02-07-SextZextCrash.ll
…
2006-02-13-DemandedMiscompile.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-02-28-Crash.ll
…
2006-03-30-ExtractElement.ll
…
2006-04-01-InfLoop.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-04-28-ShiftShiftLongLong.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-05-04-DemandedBitCrash.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-05-06-Infloop.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-06-28-infloop.ll
…
2006-09-11-EmptyStructCrash.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-09-15-CastToBool.ll
…
2006-10-19-SignedToUnsignedCastAndConst-2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-10-19-SignedToUnsignedCastAndConst.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-10-20-mask.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-10-26-VectorReassoc.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
2006-11-03-Memmove64.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-11-10-ashr-miscompile.ll
…
2006-11-27-XorBug.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-12-01-BadFPVectorXform.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-12-05-fp-to-int-ext.ll
…
2006-12-08-ICmp-Combining.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-12-08-Phi-ICmp-Op-Fold.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2006-12-08-Select-ICmp.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-12-10-ICmp-GEP-GEP.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2006-12-15-Range-Test.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
2006-12-23-Select-Cmp-Cmp.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2007-01-13-ExtCompareMiscompile.ll
For PR761:
2007-01-26 08:25:06 +00:00
2007-01-14-FcmpSelf.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-01-18-VectorInfLoop.ll
For PR761:
2007-01-26 08:25:06 +00:00
2007-01-27-AndICmp.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-02-01-LoadSinkAlloca.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-02-07-PointerCast.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-02-23-PhiFoldInfLoop.ll
Remove use of implementation keyword.
2007-03-28 02:38:26 +00:00
2007-03-13-CompareMerge.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-03-19-BadTruncChangePR1261.ll
this xform is correct, not an xfail
2007-04-08 08:02:39 +00:00
2007-03-21-SignedRangeTest.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-03-25-BadShiftMask.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-03-25-DoubleShift.ll
Add a test case for PR1271 (necessary, but not sufficient).
2007-03-25 21:30:41 +00:00
2007-03-26-BadShiftMask.ll
For PR1319:
2007-04-15 07:38:21 +00:00
2007-03-27-PR1280.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-03-31-InfiniteLoop.ll
For PR1319:
2007-04-14 20:13:02 +00:00
2007-04-04-BadFoldBitcastIntoMalloc.ll
For PR1319:
2007-04-16 17:36:08 +00:00
2007-04-08-SingleEltVectorCrash.ll
new testcase for PR1304
2007-04-09 01:37:35 +00:00
2007-05-04-Crash.ll
new testacse for PR1384
2007-05-05 01:59:05 +00:00
2007-05-10-icmp-or.ll
new testcase that crashes instcombine
2007-05-11 05:55:38 +00:00
2007-05-14-Crash.ll
New testcase that crashes instcombine
2007-05-15 00:15:49 +00:00
2007-05-18-CastFoldBug.ll
new testcase
2007-05-19 06:50:37 +00:00
2007-06-06-AshrSignBit.ll
Add a test for PR1499.
2007-06-06 17:10:02 +00:00
2007-06-21-DivCompareMiscomp.ll
new testcase miscompiled by instcombine, reduced from perl
2007-06-21 18:09:25 +00:00
2007-08-02-InfiniteLoop.ll
Reduced testcase for PR1594
2007-08-02 17:11:24 +00:00
2007-09-05-EqualGEP.ll
When the two operands of an icmp are equal, there are five possible predicates
2007-09-06 01:10:22 +00:00
2007-09-10-AliasConstFold.ll
Fix a buggy constant folding transformation when handling aliases.
2007-09-10 23:42:42 +00:00
2007-09-11-Trampoline.ll
Test that a call to a trampoline is turned into a call to
2007-09-11 15:07:50 +00:00
2007-09-17-AliasConstFold2.ll
Testcase for PR1678.
2007-09-20 18:56:24 +00:00
2007-10-10-EliminateMemCpy.ll
This test now passes.
2007-10-19 17:11:01 +00:00
2007-10-12-Crash.ll
Fix a bug in my patch last night that broke InstCombine/2007-10-12-Crash.ll
2007-10-12 18:05:47 +00:00
2007-10-28-EmptyField.ll
Fix PR1749 and InstCombine/2007-10-28-EmptyField.ll by handling
2007-10-29 02:40:02 +00:00
2007-10-28-stacksave.ll
Model stacksave and stackrestore as both writing memory, since we
2007-10-29 05:47:52 +00:00
2007-10-31-RangeCrash.ll
Fix InstCombine/2007-10-31-RangeCrash.ll
2007-11-01 02:18:41 +00:00
2007-10-31-StringCrash.ll
Fix InstCombine/2007-10-31-StringCrash.ll by removing an obvious
2007-11-01 02:30:35 +00:00
2007-11-07-OpaqueAlignCrash.ll
Better check
2007-11-08 18:45:15 +00:00
2007-11-15-CompareMiscomp.ll
Fix PR1800 by correcting mistaken logic.
2007-11-16 06:04:17 +00:00
2007-11-22-IcmpCrash.ll
Fix PR1817.
2007-11-22 23:47:13 +00:00
2007-11-25-CompatibleAttributes.ll
Fix PR1816. If a bitcast of a function only exists because of a
2007-11-25 14:10:56 +00:00
2007-12-10-ConstFoldCompare.ll
Fix PR1850 by removing an unsafe transformation from VMCore/ConstantFold.cpp.
2007-12-10 22:53:04 +00:00
2007-12-12-GEPScale.ll
1. "Upgrage" comments.
2007-12-12 15:21:32 +00:00
add2.ll
For PR1319:
2007-04-16 17:36:08 +00:00
add.ll
For PR1319:
2007-04-16 17:36:08 +00:00
align-inc.ll
oops, forgot to commit this.
2007-08-12 16:55:14 +00:00
alloca.ll
For PR1319:
2007-04-14 20:13:02 +00:00
and2.ll
Implement a couple of foldings for ordered and unordered comparisons,
2007-10-24 05:38:08 +00:00
and-compare.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and-or-and.ll
For PR1319:
2007-04-15 07:38:21 +00:00
and-or-not.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and-xor-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
and.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-add1.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-add2.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-and1.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-and2.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-and-compare.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-and-or-and.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-and-xor-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-call-cast-target.ll
Remove use of implementation keyword.
2007-03-28 02:38:26 +00:00
apint-cast-and-cast.ll
Add test case for testing InstCombine with arbitrary precision integer
2007-03-23 20:48:34 +00:00
apint-cast-cast-to-and.ll
Add test case for testing InstCombine with arbitrary precision integer
2007-03-23 20:48:34 +00:00
apint-cast.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-div1.ll
bool -> i1 (found by llvm.exp)
2007-04-14 18:30:06 +00:00
apint-div2.ll
bool -> i1 (found by llvm.exp)
2007-04-14 18:30:06 +00:00
apint-elim-logicalops.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-mul1.ll
Remove use of implementation keyword.
2007-03-28 02:38:26 +00:00
apint-mul2.ll
Remove use of implementation keyword.
2007-03-28 02:38:26 +00:00
apint-not.ll
Fix testsuite hang.
2007-03-26 10:59:13 +00:00
apint-or1.ll
Remove use of implementation keyword.
2007-03-28 02:38:26 +00:00
apint-or2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-rem1.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-rem2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-select.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-shift-simplify.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
apint-shift.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-shl-trunc.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-sub.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-xor1.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-xor2.ll
For PR1319:
2007-04-15 07:38:21 +00:00
apint-zext1.ll
For PR1319:
2007-04-14 20:13:02 +00:00
apint-zext2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
binop-cast.ll
Fix a test test llvm.exp found.
2007-04-14 18:33:31 +00:00
bit-tracking.ll
For PR1319:
2007-04-14 20:13:02 +00:00
bitcast-gep.ll
new testcase
2007-04-28 00:54:45 +00:00
bitcast-vector-fold.ll
Implement constant folding if vector<->vector bitcasts where the number
2007-12-11 07:29:44 +00:00
bitcount.ll
This is the patch to provide clean intrinsic function overloading support in LLVM. It cleans up the intrinsic definitions and generally smooths the process for more complicated intrinsic writing. It will be used by the upcoming atomic intrinsics as well as vector and float intrinsics in the future.
2007-08-04 01:51:18 +00:00
bittest.ll
For PR1319:
2007-04-14 20:13:02 +00:00
bswap-fold.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
bswap.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
call2.ll
Test for transformConstExprCastCall fix.
2007-04-04 19:18:16 +00:00
call-cast-target.ll
For PR1319:
2007-04-14 20:13:02 +00:00
call-intrinsics.ll
…
call.ll
For PR1319:
2007-04-15 07:38:21 +00:00
canonicalize_branch.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast_ptr.ll
un-xfail this.
2007-05-05 22:41:13 +00:00
cast-and-cast.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast-cast-to-and.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast-load-gep.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast-malloc.ll
update to new t-d strings.
2007-02-15 00:54:16 +00:00
cast-propagate.ll
For PR1319:
2007-04-14 20:13:02 +00:00
cast-set.ll
…
cast.ll
For PR1319:
2007-04-15 07:38:21 +00:00
CPP_min_max.llx
For PR1319:
2007-04-15 07:38:21 +00:00
deadcode.ll
For PR1319:
2007-04-14 20:13:02 +00:00
dg.exp
Changes to fix problems with "make check". Apparently you can redefine
2007-04-14 22:51:29 +00:00
div.ll
For PR1319:
2007-04-15 07:38:21 +00:00
fold-vector-zero.ll
Add support for folding binary operators with vector zero operands.
2007-10-30 19:00:49 +00:00
fpcast.ll
This test needs to use egrep.
2007-04-14 20:02:51 +00:00
GEPIdxCanon.ll
For PR1319:
2007-04-14 20:13:02 +00:00
getelementptr_cast.ll
For PR1319:
2007-04-14 20:13:02 +00:00
getelementptr_const.ll
For PR1319:
2007-04-14 20:13:02 +00:00
getelementptr_index.ll
…
getelementptr-setcc.ll
For PR1319:
2007-04-15 07:38:21 +00:00
getelementptr.ll
For PR1319:
2007-04-15 07:38:21 +00:00
hoist_instr.ll
For PR1319:
2007-04-14 20:13:02 +00:00
icmp.ll
For PR1319:
2007-04-14 20:13:02 +00:00
IntPtrCast.ll
For PR761:
2007-01-26 08:25:06 +00:00
JavaCompare.ll
For PR1319:
2007-04-14 20:13:02 +00:00
known_align.ll
Fix a bug in GetKnownAlignment of packed structs.
2007-07-31 20:13:21 +00:00
load2.ll
Transform a load from an undef/zero global into an undef/global even if we
2007-08-11 18:48:48 +00:00
load.ll
Change all floating constants that are not exactly
2007-09-05 17:50:36 +00:00
loadstore-alignment.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
malloc2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
malloc3.ll
testcase for PR1728
2007-10-12 05:29:53 +00:00
malloc-free-delete.ll
For PR1319:
2007-04-14 20:13:02 +00:00
malloc.ll
new testcase, update old one.
2007-04-06 18:56:54 +00:00
memmove.ll
This test should have been updated with llvm 1.7!
2007-04-14 20:21:37 +00:00
mul.ll
rename function to avoid llvm-upgrade warning
2007-07-16 04:09:00 +00:00
narrow.ll
For PR1319:
2007-04-14 20:13:02 +00:00
not-fcmp.ll
It's safe to fold not of fcmp.
2007-08-06 20:04:16 +00:00
not.ll
…
or2.ll
Implement a couple of foldings for ordered and unordered comparisons,
2007-10-24 05:38:08 +00:00
or.ll
For PR1319:
2007-04-15 07:38:21 +00:00
phi-merge.ll
Implement PR1777 by detecting dependent phis that
2007-11-06 21:52:06 +00:00
phi.ll
For PR1319:
2007-04-15 07:38:21 +00:00
README.txt
…
rem.ll
For PR1319:
2007-04-15 07:38:21 +00:00
select.ll
Implement PR1822
2007-11-25 21:27:53 +00:00
set.ll
For PR1319:
2007-04-14 20:13:02 +00:00
setcc-cast-cast.ll
For PR1319:
2007-04-14 20:13:02 +00:00
setcc-strength-reduce.ll
For PR1319:
2007-04-14 20:13:02 +00:00
shift-simplify.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
shift-sra.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
shift.ll
For PR1319:
2007-04-14 20:13:02 +00:00
shl-trunc.ll
…
signext.ll
For PR1319:
2007-04-15 07:38:21 +00:00
sink_instruction.ll
For PR1319:
2007-04-14 20:13:02 +00:00
srem.ll
Instcombine x-((x/y)*y) into a remainder operator.
2007-09-17 17:31:57 +00:00
stacksaverestore.ll
update testcase
2007-10-29 17:06:35 +00:00
store-merge.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
store.ll
For PR1319:
2007-04-14 20:13:02 +00:00
sub.ll
For PR1319:
2007-04-14 20:13:02 +00:00
udiv_select_to_select_shift.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
urem.ll
Instcombine x-((x/y)*y) into a remainder operator.
2007-09-17 17:31:57 +00:00
vec_demanded_elts.ll
manually upgrade test. Add a new test2. I have no way to see if this works
2007-04-14 22:27:33 +00:00
vec_extract_elt.ll
new testcase
2007-04-14 23:00:51 +00:00
vec_insert_to_shuffle.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
vec_insertelt.ll
For PR1319:
2007-04-14 20:13:02 +00:00
vec_narrow.ll
For PR1319:
2007-04-14 20:13:02 +00:00
vec_shuffle.ll
For PR1319:
2007-04-15 07:38:21 +00:00
vector-srem.ll
Fix an abort in instcombine when folding creates a vector rem instruction.
2007-11-05 23:16:33 +00:00
volatile_store.ll
Don't zap back to back volatile load/stores
2007-09-07 05:33:03 +00:00
xor2.ll
For PR1319:
2007-04-14 20:13:02 +00:00
xor.ll
For PR1319:
2007-04-14 20:13:02 +00:00
zeroext-and-reduce.ll
For PR1319:
2007-04-14 20:13:02 +00:00
zext-fold.ll
Convert tests using "| wc -l | grep ..." to use the count script.
2007-08-15 13:36:28 +00:00
zext.ll
For PR1319:
2007-04-14 20:13:02 +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.