Anna Thomas aaa1cad9b5 [AliasAnalysis] Fences do not modify constant memory location ... Summary: Fence instructions are currently marked as `ModRef` for all memory locations. We can improve this for constant memory locations (such as constant globals), since fence instructions cannot modify these locations. This helps us to forward constant loads across fences (added test case in GVN). There were no changes in behaviour for similar test cases in early-cse and licm. Reviewers: dberlin, sanjoy, reames Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D28914 llvm-svn: 292546		2017-01-20 00:21:33 +00:00
..
PRE	[DWARF] Null out the debug locs of load instructions that have been moved by GVN	2017-01-04 23:58:26 +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	IntrArgMemOnly is only defined (and current AA machinery only sanely supports) pointer arguments, and these intrinsics have vector of pointer arguments. Remove ArgMemOnly until we either have the machinery, define a new attribute, or something similar	2016-08-30 19:58:48 +00:00
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_br2.ll
cond_br.ll
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
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
invariant.group.ll	[Devirtualization] MemDep returns non-local !invariant.group dependencies	2017-01-12 11:33:58 +00:00
invariant.start.ll	[AliasAnalysis] Treat invariant.start as read-memory	2016-08-09 17:18:05 +00:00
lifetime-simple.ll
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
MemdepMiscompile.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-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	[GVN, OptDiag] Print the interesting instructions involved in missed load-elimination	2016-12-01 17:34:50 +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
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