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Piotr Padlewski 610c966a4e Handle invariant.group.barrier in BasicAA 
Summary:
llvm.invariant.group.barrier returns pointer that mustalias
pointer it takes. It can't be marked with `returned` attribute,
because it would be remove easily. The other reason is that
only Alias Analysis can know about this, because if any other
pass would know it, then the result would be replaced with it's
argument, which would be invalid.

We can think about returned pointer as something that mustalias, but
it doesn't have to be bitwise the same as the argument.

Reviewers: dberlin, chandlerc, hfinkel, sanjoy

Subscribers: reames, nlewycky, rsmith, anna, amharc

Differential Revision: https://reviews.llvm.org/D31585

llvm-svn: 301227
 		2017-04-24 19:37:17 +00:00
..
PRE opt: Rename -default-data-layout flag to -data-layout and make it always override the layout. 2017-02-17 17:36:52 +00:00
2007-07-25-DominatedLoop.ll
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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
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2007-07-25-NestedLoop.ll
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2007-07-25-SinglePredecessor.ll
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2007-07-26-InterlockingLoops.ll
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2007-07-26-NonRedundant.ll
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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
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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
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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
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2008-12-14-rle-reanalyze.ll
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2008-12-15-CacheVisited.ll
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2009-01-21-SortInvalidation.ll
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2009-01-22-SortInvalidation.ll
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2009-03-10-PREOnVoid.ll
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2009-07-13-MemDepSortFail.ll
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2009-11-12-MemDepMallocBitCast.ll
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2010-03-31-RedundantPHIs.ll
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2010-05-08-OneBit.ll
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2010-11-13-Simplify.ll
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2011-04-27-phioperands.ll
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2011-07-07-MatchIntrinsicExtract.ll
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2011-09-07-TypeIdFor.ll
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2012-05-22-PreCrash.ll
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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
MemdepMiscompile.ll
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assume-equal.ll [Devirtualization] MemDep returns non-local !invariant.group dependencies 2017-01-12 11:33:58 +00:00
basic-undef-test.ll
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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
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calloc-load-removal.ll
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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
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cond_br.ll
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cond_br2.ll Add address space mangling to lifetime intrinsics 2017-04-10 20:18:21 +00:00
condprop.ll
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crash-no-aa.ll
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crash.ll
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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
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fence.ll [AliasAnalysis] Fences do not modify constant memory location 2017-01-20 00:21:33 +00:00
flags.ll [GVN] Respect fast-math-flags on fcmps 2016-04-22 06:37:51 +00:00
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
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funclet.ll
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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
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malloc-load-removal.ll
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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
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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
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nonescaping-malloc.ll [GVN] Use FileCheck instead of grep for tests. 2016-07-17 23:21:26 +00:00
null-aliases-nothing.ll
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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
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pr10820.ll
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pr12979.ll
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pr14166.ll [InstSimplify] Cast folding can be made more generic 2016-07-26 17:58:05 +00:00
pr17732.ll
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pr17852.ll
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pr24397.ll
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pr24426.ll
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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
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pre-new-inst.ll
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propagate-ir-flags.ll Fixed the lost FastMathFlags in GVN(Global Value Numbering). 2016-11-22 20:52:53 +00:00
range.ll
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readattrs.ll
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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
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rle-nonlocal.ll
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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
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volatile-nonvolatile.ll
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