Silviu Baranga 6e6031d4bf [SCEV][LAA] Re-commit r260085 and r260086, this time with a fix for the memory ... sanitizer issue. The PredicatedScalarEvolution's copy constructor wasn't copying the Generation value, and was leaving it un-initialized. Original commit message: [SCEV][LAA] Add no wrap SCEV predicates and use use them to improve strided pointer detection Summary: This change adds no wrap SCEV predicates with: - support for runtime checking - support for expression rewriting: (sext ({x,+,y}) -> {sext(x),+,sext(y)} (zext ({x,+,y}) -> {zext(x),+,sext(y)} Note that we are sign extending the increment of the SCEV, even for the zext case. This is needed to cover the fairly common case where y would be a (small) negative integer. In order to do this, this change adds two new flags: nusw and nssw that are applicable to AddRecExprs and permit the transformations above. We also change isStridedPtr in LAA to be able to make use of these predicates. With this feature we should now always be able to work around overflow issues in the dependence analysis. Reviewers: mzolotukhin, sanjoy, anemet Subscribers: mzolotukhin, sanjoy, llvm-commits, rengolin, jmolloy, hfinkel Differential Revision: http://reviews.llvm.org/D15412 llvm-svn: 260112		2016-02-08 17:02:45 +00:00
..
BBVectorize.cpp	Vectorize: Remove implicit ilist iterator conversions, NFC	2015-10-19 22:06:09 +00:00
CMakeLists.txt
LLVMBuild.txt
LoopVectorize.cpp	[SCEV][LAA] Re-commit r260085 and r260086, this time with a fix for the memory	2016-02-08 17:02:45 +00:00
SLPVectorizer.cpp	[SLP] Fix placement of debug statement (NFC)	2016-02-08 14:11:39 +00:00
Vectorize.cpp