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Jingyue Wu ed0d841f59 [DependenceAnalysis] Extend unifySubscriptType for handling coupled subscript groups. 
Summary:
In continuation to an earlier commit to DependenceAnalysis.cpp by jingyue (r222100), the type for all subscripts in a coupled group need to be the same since constraints from one subscript may be propagated to another during testing. During testing, new SCEVs may be created and the operands for these need to be the same.
This patch extends unifySubscriptType() to work on lists of subscript pairs, ensuring a common extended type for all of them.

Test Plan:
Added a test case to NonCanonicalizedSubscript.ll which causes dependence analysis to crash without this fix.

All regression tests pass.

Reviewers: spop, sebpop, jingyue

Reviewed By: jingyue

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D9698

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238573 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-29 16:58:08 +00:00
..
AssumptionCache [PM] Actually add the new pass manager support for the assumption cache. 2015-01-22 21:53:09 +00:00
BasicAA Revert r236894 "[BasicAA] Fix zext & sext handling" 2015-05-22 01:27:37 +00:00
BlockFrequencyInfo [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
BranchProbabilityInfo Fix information loss in branch probability computation. 2015-05-07 17:22:06 +00:00
CallGraph [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
CFLAliasAnalysis [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
CostModel [X86][SSE] Avoid scalarization of v2i64 vector shifts (REAPPLIED) 2015-03-18 22:18:51 +00:00
Delinearization Fix a type mismatch assert in SCEV division 2015-04-22 15:06:40 +00:00
DependenceAnalysis [DependenceAnalysis] Extend unifySubscriptType for handling coupled subscript groups. 2015-05-29 16:58:08 +00:00
DivergenceAnalysis/NVPTX Divergence analysis for GPU programs 2015-04-10 05:03:50 +00:00
Dominators [opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction 2015-02-27 19:29:02 +00:00
GlobalsModRef [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
LazyCallGraph [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
Lint Make llvm.eh.begincatch use an outparam 2015-03-03 17:41:09 +00:00
LoopAccessAnalysis [LoopAccesses] If shouldRetryWithRuntimeCheck, reset InterestingDependences 2015-05-18 15:37:03 +00:00
LoopInfo [PM] Port LoopInfo to the new pass manager, adding both a LoopAnalysis 2015-01-20 10:58:50 +00:00
MemoryDependenceAnalysis [opaque pointer type] Add textual IR support for explicit type parameter to load instruction 2015-02-27 21:17:42 +00:00
PostDominators
RegionInfo
ScalarEvolution [opaque pointer type] Add textual IR support for explicit type parameter to the call instruction 2015-04-16 23:24:18 +00:00
ScopedNoAliasAA [Testsuite] Renumber metadata in ScopedNoAliasAA test to match CHECK lines 2015-05-11 09:10:14 +00:00
TypeBasedAliasAnalysis [opaque pointer type] Add textual IR support for explicit type parameter to gep operator 2015-03-13 18:20:45 +00:00
ValueTracking Fix memory-dereferenceable.ll test 2015-05-21 12:51:38 +00:00