llvm-6502/test/Transforms/LICM
David Majnemer 3839fd16a1 Analysis: Make isSafeToSpeculativelyExecute fire less for divides
Divides and remainder operations do not behave like other operations
when they are given poison: they turn into undefined behavior.

It's really hard to know if the operands going into a div are or are not
poison.  Because of this, we should only choose to speculate if there
are constant operands which we can easily reason about.

This fixes PR21412.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221318 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-04 23:49:08 +00:00
..
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 Fix assertion in LICM doFinalization() 2014-09-24 16:48:31 +00:00
atomics.ll
basictest.ll
crash.ll
debug-value.ll Revert "Revert "DI: Fold constant arguments into a single MDString"" 2014-10-03 20:01:09 +00:00
extra-copies.ll
hoist-bitcast-load.ll
hoist-deref-load.ll
hoist-invariant-load.ll
hoisting.ll
lcssa-ssa-promoter.ll
no-preheader-test.ll
PR19798.ll
Preserve-LCSSA.ll
promote-order.ll
scalar_promote.ll
scalar-promote-memmodel.ll
sinking.ll
speculate.ll Analysis: Make isSafeToSpeculativelyExecute fire less for divides 2014-11-04 23:49:08 +00:00
volatile-alias.ll