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| author | Igor Laevsky <igmyrj@gmail.com> | 2015-10-28 17:54:48 +0000 |
|---|---|---|
| committer | Igor Laevsky <igmyrj@gmail.com> | 2015-10-28 17:54:48 +0000 |
| commit | 559d1700216ec7843ceec8c15aa2c32288162bc3 (patch) | |
| tree | e52196da31d3799ce599c2a923f1af505bea3019 /llvm/lib/Analysis/BasicAliasAnalysis.cpp | |
| parent | ddaa1c7eb13f6c8177b880c46cd2ea28bb5917be (diff) | |
| download | llvm-559d1700216ec7843ceec8c15aa2c32288162bc3.zip llvm-559d1700216ec7843ceec8c15aa2c32288162bc3.tar.gz llvm-559d1700216ec7843ceec8c15aa2c32288162bc3.tar.bz2 | |
[AliasAnalysis] Take into account readnone attribute for the function arguments
Differential Revision: http://reviews.llvm.org/D13992
llvm-svn: 251535
Diffstat (limited to 'llvm/lib/Analysis/BasicAliasAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/BasicAliasAnalysis.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp index 26578b8..1f7e82d 100644 --- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp +++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp @@ -619,6 +619,9 @@ ModRefInfo BasicAAResult::getArgModRefInfo(ImmutableCallSite CS, if (CS.paramHasAttr(ArgIdx + 1, Attribute::ReadOnly)) return MRI_Ref; + if (CS.paramHasAttr(ArgIdx + 1, Attribute::ReadNone)) + return MRI_NoModRef; + return AAResultBase::getArgModRefInfo(CS, ArgIdx); } |