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Dorit Nuzman d57d73daed [LV] fold-tail predication should be respected even with assume_safety 
assume_safety implies that loads under "if's" can be safely executed
speculatively (unguarded, unmasked). However this assumption holds only for the
original user "if's", not those introduced by the compiler, such as the
fold-tail "if" that guards us from loading beyond the original loop trip-count.
Currently the combination of fold-tail and assume-safety pragmas results in
ignoring the fold-tail predicate that guards the loads, generating unmasked
loads. This patch fixes this behavior.

Differential Revision: https://reviews.llvm.org/D66106

Reviewers: Ayal, hsaito, fhahn
llvm-svn: 368973
 		2019-08-15 07:12:14 +00:00
..
AggressiveInstCombine Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
Coroutines [coroutine] Fixes "cannot move instruction since its users are not dominated by CoroBegin" problem. 2019-08-15 00:48:51 +00:00
Hello Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
IPO [Attributor] Try to fix "missing field 'RetInsts' initializer" warning 2019-08-14 22:32:29 +00:00
InstCombine [InstCombine] Refactor getFlippedStrictnessPredicateAndConstant() out of canonicalizeCmpWithConstant(), NFCI 2019-08-14 09:57:20 +00:00
Instrumentation hwasan: Instrument globals. 2019-08-06 22:07:29 +00:00
ObjCARC [ObjC][ARC] Delete ObjC runtime calls on global variables annotated 2019-06-14 22:06:32 +00:00
Scalar [SCEV] Rename getMaxBackedgeTakenCount to getConstantMaxBackedgeTakenCount [NFC] 2019-08-14 21:58:13 +00:00
Utils [SLC] Dereferenceable annonation - handle valid null pointers 2019-08-14 17:15:20 +00:00
Vectorize [LV] fold-tail predication should be respected even with assume_safety 2019-08-15 07:12:14 +00:00
CMakeLists.txt Another try to commit 323321 (aggressive instruction combine). 2018-01-25 12:06:32 +00:00
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00