llvm-project/llvm/test/Transforms/GVN
Serguei Katkov 722339e405 [GVN PRE] Patch the source for Phi node in PRE
We must patch all existing incoming values of Phi node,
otherwise it is possible that we can see poison
where program does not expect to see it.

This is the similar what GVN does.

The added test test/Transforms/GVN/PRE/pre-jt-add.ll shows an
example of wrong optimization done by jump threading due to
GVN PRE did not patch existing incoming value.

Reviewers: mkazantsev, wmi, dberlin, davide
Reviewed By: dberlin
Subscribers: efriedma, llvm-commits
Differential Revision: https://reviews.llvm.org/D39637

llvm-svn: 317768
2017-11-09 06:02:18 +00:00
..
PRE [GVN PRE] Patch the source for Phi node in PRE 2017-11-09 06:02:18 +00:00
2007-07-25-DominatedLoop.ll
2007-07-25-InfiniteLoop.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2007-07-25-Loop.ll
2007-07-25-NestedLoop.ll
2007-07-25-SinglePredecessor.ll
2007-07-26-InterlockingLoops.ll
2007-07-26-NonRedundant.ll
2007-07-26-PhiErasure.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2007-07-30-PredIDom.ll
2007-07-31-NoDomInherit.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2007-07-31-RedundantPhi.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2008-02-12-UndefLoad.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2008-02-13-NewPHI.ll
2008-07-02-Unreachable.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2008-12-09-SelfRemove.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
2008-12-12-RLE-Crash.ll
2008-12-14-rle-reanalyze.ll
2008-12-15-CacheVisited.ll
2009-01-21-SortInvalidation.ll
2009-01-22-SortInvalidation.ll
2009-03-10-PREOnVoid.ll
2009-07-13-MemDepSortFail.ll
2009-11-12-MemDepMallocBitCast.ll
2010-03-31-RedundantPHIs.ll
2010-05-08-OneBit.ll
2010-11-13-Simplify.ll
2011-04-27-phioperands.ll
2011-07-07-MatchIntrinsicExtract.ll
2011-09-07-TypeIdFor.ll
2012-05-22-PreCrash.ll
2016-08-30-MaskedScatterGather.ll Support arbitrary address space pointers in masked gather/scatter intrinsics. 2017-05-03 12:28:54 +00:00
MemdepMiscompile.ll
assume-equal.ll [Devirtualization] MemDep returns non-local !invariant.group dependencies 2017-01-12 11:33:58 +00:00
basic-undef-test.ll
basic.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
big-endian.ll Do not widen load for different variable in GVN. 2016-09-09 18:42:35 +00:00
bitcast-of-call.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
br-identical.ll
calloc-load-removal.ll
calls-nonlocal.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
calls-readonly.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
commute.ll
cond_br.ll
cond_br2.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
condprop.ll
crash-no-aa.ll
crash.ll
dbg-redundant-load.ll When GVN removes a redundant load, it should not modify the debug location of the dominating load. 2016-12-07 12:31:36 +00:00
debugloc.ll Do not propagate DebugLoc across basic blocks 2017-01-31 20:57:13 +00:00
edge.ll
fence.ll [AliasAnalysis] Fences do not modify constant memory location 2017-01-20 00:21:33 +00:00
flags.ll
fold-const-expr.ll Fix some DOS-style line endings that I suspect snuck in from one of the 2016-12-23 02:02:26 +00:00
fpmath.ll
funclet.ll
int_sideeffect.ll Add an @llvm.sideeffect intrinsic 2017-11-08 21:59:51 +00:00
invariant.group.ll Handle invariant.group.barrier in BasicAA 2017-04-24 19:37:17 +00:00
invariant.start.ll [AliasAnalysis] Treat invariant.start as read-memory 2016-08-09 17:18:05 +00:00
lifetime-simple.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
load-constant-mem.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
load-from-unreachable-predecessor.ll
malloc-load-removal.ll
no_speculative_loads_with_asan.ll Do not widen load for different variable in GVN. 2016-09-09 18:42:35 +00:00
noalias.ll
non-integral-pointers.ll [GVN] Don't coerce non-integral pointers to integers or vice versa 2017-04-19 18:21:09 +00:00
non-local-offset.ll
nonescaping-malloc.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
null-aliases-nothing.ll
opt-remarks.ll This patch fixes https://bugs.llvm.org/show_bug.cgi?id=32352 2017-09-15 20:10:09 +00:00
phi-translate-partial-alias.ll
pr10820.ll
pr12979.ll
pr14166.ll [InstSimplify] Cast folding can be made more generic 2016-07-26 17:58:05 +00:00
pr17732.ll
pr17852.ll
pr24397.ll
pr24426.ll
pr25440.ll Do not widen load for different variable in GVN. 2016-09-09 18:42:35 +00:00
pr28562.ll [IR] andIRFlags and copyIRFlags needs to handle GEP 2016-07-15 05:02:31 +00:00
pr32314.ll [BasicAA] Add test case that goes with r305481. 2017-06-15 17:27:56 +00:00
pr34908.ll [GVN] Don't replace constants with constants. 2017-10-11 04:21:51 +00:00
pre-compare.ll
pre-new-inst.ll
propagate-ir-flags.ll Fixed the lost FastMathFlags in GVN(Global Value Numbering). 2016-11-22 20:52:53 +00:00
range.ll
readattrs.ll
rle-must-alias.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
rle-no-phi-translate.ll
rle-nonlocal.ll
stale-loop-info.ll [GVN] When merging blocks update LoopInfo if it's available 2016-12-01 03:56:43 +00:00
tbaa.ll [Verifier] Add verification for TBAA metadata 2016-12-11 20:07:15 +00:00
unreachable_block_infinite_loop.ll
volatile-nonvolatile.ll