1a6eaebd1c326c406a986659c21f04f8e51b09d7 - platform_external_llvm

commit	1a6eaebd1c326c406a986659c21f04f8e51b09d7	[log] [tgz]
author	Sanjoy Das <sanjoy@playingwithpointers.com>	Tue Jun 19 04:09:44 2018 +0000
committer	Sanjoy Das <sanjoy@playingwithpointers.com>	Tue Jun 19 04:09:44 2018 +0000
tree	a4fe11084bd6f602fab21d481938ff77db1f5a5d
parent	fe7e53ea94c1eb9e43c926fc9d674d5c5a8260fa [diff]

Revert "[SCEV] Add nuw/nsw to mul ops in StrengthenNoWrapFlags"

This reverts r334428.  It incorrectly marks some multiplications as nuw.  Tim
Shen is working on a proper fix.

Original commit message:

[SCEV] Add nuw/nsw to mul ops in StrengthenNoWrapFlags where safe.

Summary:
Previously we would add them for adds, but not multiplies.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@335016 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/ScalarEvolution.cpp[diff]
test/Analysis/Delinearization/a.ll[diff]
test/Analysis/Delinearization/iv_times_constant_in_subscript.ll[diff]
test/Analysis/IVUsers/quadradic-exit-value.ll[diff]
test/Analysis/LoopAccessAnalysis/number-of-memchecks.ll[diff]
test/Analysis/LoopAccessAnalysis/wrapping-pointer-versioning.ll[diff]
test/Analysis/ScalarEvolution/different-loops-recs.ll[diff]
test/Analysis/ScalarEvolution/mul-nuw.ll[Deleted - diff]
test/Analysis/ScalarEvolution/nsw-offset-assume.ll[diff]
test/Analysis/ScalarEvolution/nsw-offset.ll[diff]
test/Analysis/ScalarEvolution/nsw.ll[diff]
test/Analysis/ScalarEvolution/sext-mul.ll[diff]
test/Analysis/ScalarEvolution/sext-zero.ll[diff]
test/Analysis/ScalarEvolution/trip-count-pow2.ll[diff]
test/Analysis/ScalarEvolution/zext-mul.ll[diff]
test/Transforms/IndVarSimplify/2011-09-10-widen-nsw.ll[diff]

16 files changed

tree: a4fe11084bd6f602fab21d481938ff77db1f5a5d