David Stenberg 05b6a53340 [MustExecute] Fix a debug invariant issue in isGuaranteedToExecute() ... Summary: Look past debug intrinsics when querying whether an instruction is the first instruction in the header block. The commit includes a reproducer for a case where LICM would not hoist an instruction, due to the presence of the intrinsic. A caveat with this commit is that the check will not work properly if the instruction at hand is a debug intrinsic. I assume that no one depends on isGuaranteedToExecute() to return true for debug intrinsics for these cases (and that this might be an indication of another debug invariant issue), so I thought that it was not worth adding that extra bit of complexity. Reviewers: reames, anna Reviewed By: anna Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D47197 llvm-svn: 333274		2018-05-25 13:02:59 +00:00
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2003-02-26-LoopExitNotDominated.ll	…
2003-02-27-NestedLoopExitBlocks.ll	…
2003-02-27-PreheaderExitNodeUpdate.ll	…
2003-02-27-PreheaderProblem.ll	…
2003-02-27-StoreSinkPHIs.ll	…
2003-02-28-PromoteDifferentType.ll	…
2003-05-02-LoadHoist.ll	…
2003-12-11-SinkingToPHI.ll	…
2004-09-14-AliasAnalysisInvalidate.ll	…
2004-11-17-UndefIndexCrash.ll	…
2006-09-12-DeadUserOfSunkInstr.ll	…
2007-05-22-VolatileSink.ll	…
2007-07-30-AliasSet.ll	…
2007-09-17-PromoteValue.ll	…
2007-09-24-PromoteNullValue.ll	…
2007-10-01-PromoteSafeValue.ll	…
2008-05-20-AliasSetVAArg.ll	…
2008-07-22-LoadGlobalConstant.ll	…
2009-12-10-LICM-Indbr-Crash.ll	…
2011-04-06-HoistMissedASTUpdate.ll	…
2011-04-06-PromoteResultOfPromotion.ll	…
2011-04-09-RAUW-AST.ll	…
2011-07-06-Alignment.ll	…
2014-09-10-doFinalizationAssert.ll	…
AliasSetMemSet.ll	…
PR19798.ll	…
PR21582.ll	…
PR24013.ll	…
Preserve-LCSSA.ll	…
alias-set-tracker-loss.ll	…
argmemonly-call.ll	…
assume.ll	…
atomics.ll	[LICM] Make store promotion work in the face of unordered atomics	2017-02-14 01:38:31 +00:00
basictest.ll	…
bisect-state.ll	…
constexpr.ll	…
crash.ll	…
debug-value.ll	Remove the obsolete offset parameter from @llvm.dbg.value	2017-07-28 20:21:02 +00:00
dropped-tbaa.ll	[AliasSetTracker] Don't drop AA MD so eagerly	2017-06-29 19:13:11 +00:00
extra-copies.ll	…
funclet.ll	…
hoist-bitcast-load.ll	…
hoist-debuginvariant.ll	[MustExecute] Fix a debug invariant issue in isGuaranteedToExecute()	2018-05-25 13:02:59 +00:00
hoist-deref-load.ll	…
hoist-fast-fdiv.ll	[LICM] Hoist fp division from the loops and replace by a reciprocal	2017-04-11 02:22:54 +00:00
hoist-invariant-load.ll	…
hoist-mustexec.ll	[LICM] Extend the MustExecute scope	2018-05-18 04:56:28 +00:00
hoist-nounwind.ll	…
hoist-round.ll	Mark @llvm.powi.* as safe to speculatively execute.	2017-01-25 09:32:30 +00:00
hoisting.ll	[LICM] Hoist loads that are dominated by invariant.start intrinsic, and are invariant in the loop.	2017-02-02 13:22:03 +00:00
int_sideeffect.ll	Add an @llvm.sideeffect intrinsic	2017-11-08 21:59:51 +00:00
lcssa-ssa-promoter.ll	…
loopsink.ll	Xfail the test added in r324445 until the underlying issue in LoopSink is fixed.	2018-02-07 06:11:50 +00:00
no-preheader-test.ll	…
opt-remarks-conditional-load.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
opt-remarks-intervening-store.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
opt-remarks.ll	[DebugInfo] Add DILabel metadata and intrinsic llvm.dbg.label.	2018-05-09 02:40:45 +00:00
pr23608.ll	…
pr26843.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
pr27262.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
pr32129.ll	Use a WeakVH for UnknownInstructions in AliasSetTracker	2017-03-11 01:15:48 +00:00
pr35342.ll	[LICM] Fix PR35342	2017-11-17 20:38:25 +00:00
pr37323.ll	[LICM] Preserve DT and LoopInfo specifically	2018-05-24 15:58:34 +00:00
preheader-safe.ll	[LICM] Compute a must execute property for the prefix of the header as we go	2018-05-04 21:35:00 +00:00
promote-order.ll	…
promote-tls.ll	…
scalar-promote-memmodel.ll	…
scalar-promote-unwind.ll	…
scalar-promote.ll	[LICM] Ignore exits provably not taken on first iteration when computing must execute	2018-03-15 21:04:28 +00:00
sink-foldable.ll	Re-commit : [LICM] Allow sinking when foldable in loop	2017-12-15 20:33:24 +00:00
sink.ll	…
sinking.ll	[LICM] Salvage DI from dying Instructions	2018-03-18 15:59:19 +00:00
speculate.ll	…
strlen.ll	Add argmononly attribute to strlen and wcslen, i.e. they only read memory (string) passed to them.	2017-06-18 03:10:26 +00:00
unrolled-deeply-nested.ll	Remove alignment argument from memcpy/memmove/memset in favour of alignment attributes (Step 1)	2018-01-19 17:13:12 +00:00
update-scev.ll	…
volatile-alias.ll	…