llvm-6502/test/Analysis
Andrew Trick e74c2e86cb Fix SCEV forgetMemoizedResults should search and destroy backedge exprs.
Fixes PR15570: SEGV: SCEV back-edge info invalid after dead code removal.

Indvars creates a SCEV expression for the loop's back edge taken
count, then determines that the comparison is always true and
removes it.

When loop-unroll asks for the expression, it contains a NULL
SCEVUnknkown (as a CallbackVH).

forgetMemoizedResults should invalidate the loop back edges expression.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177986 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-26 03:14:53 +00:00
..
BasicAA Memory Dependence Analysis (not mem-dep test) take advantage of "invariant.load" metadata. 2013-03-06 17:48:48 +00:00
BlockFrequencyInfo
BranchProbabilityInfo
CallGraph
CostModel Correct cost model for vector shift on AVX2 2013-03-20 22:01:10 +00:00
DependenceAnalysis
Dominators Tests: rewrite 'opt ... %s' to 'opt ... < %s' so that opt does not emit a ModuleID 2012-12-30 02:33:22 +00:00
GlobalsModRef
LoopInfo
PostDominators
Profiling Disable profiling tests for Hexagon since it doesn't support JIT. 2013-03-25 21:15:11 +00:00
RegionInfo Revert the test moves from 176733. Use "REQUIRES: asserts" instead. 2013-03-12 16:27:52 +00:00
ScalarEvolution Fix SCEV forgetMemoizedResults should search and destroy backedge exprs. 2013-03-26 03:14:53 +00:00
TypeBasedAliasAnalysis Support in AAEvaluator to print alias queries of loads/stores with TBAA tags. 2013-03-22 22:34:41 +00:00