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Serguei Katkov b988898013 [GVN LoadPRE] Extend the scope of optimization by using context to prove safety of speculation 
Use context to prove that load can be safely executed at a point where load is being hoisted.

Postpone the decision about safety of speculative load execution till the moment we know
where we hoist load and check safety at that context.

Reviewers: nikic, fhahn, mkazantsev, lebedev.ri, efriedma, reames
Reviewed By: reames, mkazantsev
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D88725
 		2020-10-06 09:25:16 +07:00
..
PRE [Instruction] Add dropLocation and updateLocationAfterHoist helpers 2020-09-24 15:00:04 -07:00
2007-07-25-DominatedLoop.ll
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2007-07-25-InfiniteLoop.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
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 [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2007-07-26-NonRedundant.ll
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2007-07-26-PhiErasure.ll
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2007-07-30-PredIDom.ll
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2007-07-31-NoDomInherit.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2007-07-31-RedundantPhi.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2008-02-12-UndefLoad.ll
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2008-02-13-NewPHI.ll
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2008-07-02-Unreachable.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2008-12-09-SelfRemove.ll
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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 [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2010-05-08-OneBit.ll
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2010-11-13-Simplify.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2011-04-27-phioperands.ll
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2011-07-07-MatchIntrinsicExtract.ll
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2011-09-07-TypeIdFor.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
2012-05-22-PreCrash.ll
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2016-08-30-MaskedScatterGather.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
MemdepMiscompile.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
addrspacecast.ll
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assume-equal.ll
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assume.ll [GVN] Use that assume(!X) implies X==false (PR47496) 2020-09-17 21:34:44 +02:00
basic-undef-test.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
basic.ll
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big-endian.ll
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bitcast-of-call.ll
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br-identical.ll
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callbr-loadpre-critedge.ll
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callbr-scalarpre-critedge.ll
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calloc-load-removal.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
calls-nonlocal.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
calls-readonly.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
commute.ll [IR][GVN] add/allow commutative intrinsics with >2 args 2020-09-03 10:14:53 -04:00
cond_br.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
cond_br2.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
condprop.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
constexpr-vector-constainsundef-crash.ll [ValueTracking] Check for ConstantExpr before using recursive helpers. 2020-07-24 17:37:09 +01:00
crash-no-aa.ll [BasicAA] Rename -disable-basicaa to -disable-basic-aa to be consistent with the canonical name "basic-aa" 2020-06-26 20:55:44 -07:00
crash.ll
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critical-edge-split-indbr-pred-in-loop.ll [BreakCritEdges] Add option to opt-out of perserving loop-simplify. 2020-06-12 11:47:13 +01:00
dbg-redundant-load.ll
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debugloc.ll
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edge.ll
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equality-assume.ll
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fence.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
flags.ll
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fold-const-expr.ll
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fpmath.ll
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freeze.ll
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funclet.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
int_sideeffect.ll
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invariant.group.ll StoreInst should store Align, not MaybeAlign 2020-05-15 12:26:58 -07:00
invariant.start.ll
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lifetime-simple.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
load-constant-mem.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
load-from-unreachable-predecessor.ll
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loadpre-context.ll [GVN LoadPRE] Extend the scope of optimization by using context to prove safety of speculation 2020-10-06 09:25:16 +07:00
loadpre-missed-opportunity.ll [GVN] Rewrite IsValueFullyAvailableInBlock(): no recursion, less false-negatives 2020-07-28 10:19:28 +03:00
malloc-load-removal.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
masked-load-store-vn-crash.ll [GVN] Account for masked loads/stores depending on load/store instructions 2020-09-10 10:57:33 -05:00
masked-load-store.ll Handle masked loads and stores in MemoryLocation/Dependence 2020-09-08 19:08:44 -05:00
no-mem-dep-info.ll
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no_speculative_loads_with_asan.ll
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noalias.ll Rename scoped-noalias -> scoped-noalias-aa 2020-07-24 12:14:27 -07:00
non-integral-pointers.ll [gvn] Handle a corner case w/vectors of non-integral pointers 2020-10-01 19:20:21 -07:00
non-local-offset.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
nonescaping-malloc.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
null-aliases-nothing.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
opt-remarks.ll
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phi-translate-partial-alias.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
pr10820.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
pr12979.ll
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pr14166.ll [BasicAA] Rename -disable-basicaa to -disable-basic-aa to be consistent with the canonical name "basic-aa" 2020-06-26 20:55:44 -07:00
pr17732.ll
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pr17852.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
pr24397.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
pr24426.ll
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pr25440.ll
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pr28562.ll
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pr28879.ll
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pr32314.ll
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pr34908.ll
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pr36063.ll
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pr42605.ll
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pr46054-md-nonlocaldefcache-cleanup.ll [MemDep] Also remove load instructions from NonLocalDesCache. 2020-06-17 09:36:53 +01:00
pre-compare.ll
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pre-new-inst.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
preserve-analysis.ll [NewPM] Pin tests with -debug-pass to legacy PM 2020-09-22 17:54:25 -07:00
preserve-memoryssa.ll [GVN] Preserve MemorySSA if it is available. 2020-09-03 12:28:13 +01:00
propagate-ir-flags.ll
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range.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
readattrs.ll
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rle-must-alias.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
rle-no-phi-translate.ll
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rle-nonlocal.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
stale-loop-info.ll
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tbaa.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00
unreachable-predecessor.ll
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unreachable_block_infinite_loop.ll
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volatile-nonvolatile.ll
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vscale.ll [NewPM][BasicAA] basicaa -> basic-aa in Transforms/{New,}GVN 2020-06-26 20:28:18 -07:00