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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-27 03:08:44 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-10-27 03:08:44 +0000 |
| commit | 2e1890e18bf84f2cb62d9e39525d7117bc79446b (patch) | |
| tree | 64a9270ef3a3d6e59d97a98090bcab7a7ce106a6 /llvm/lib/Analysis/BasicAliasAnalysis.cpp | |
| parent | 6a8658ad61c5b06d19c30bfdcedf3d63902cec73 (diff) | |
| download | llvm-2e1890e18bf84f2cb62d9e39525d7117bc79446b.zip llvm-2e1890e18bf84f2cb62d9e39525d7117bc79446b.tar.gz llvm-2e1890e18bf84f2cb62d9e39525d7117bc79446b.tar.bz2 | |
Revert r193251 : Use address-taken to disambiguate global variable and indirect memops.
llvm-svn: 193489
Diffstat (limited to 'llvm/lib/Analysis/BasicAliasAnalysis.cpp')
| -rw-r--r-- | llvm/lib/Analysis/BasicAliasAnalysis.cpp | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp index 4e423a7..bf92969 100644 --- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp +++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp @@ -1238,17 +1238,6 @@ BasicAliasAnalysis::aliasCheck(const Value *V1, uint64_t V1Size, return NoAlias; if (isEscapeSource(O2) && isNonEscapingLocalObject(O1)) return NoAlias; - - // If one object is a global variable without address taken, the other one - // is a different object, they will not alias because the global variable - // in question cannot be indirectly accessed. - if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(O1)) - if (!GV->AddressMaybeTaken()) - return NoAlias; - - if (const GlobalVariable *GV = dyn_cast<GlobalVariable>(O2)) - if (!GV->AddressMaybeTaken()) - return NoAlias; } // If the size of one access is larger than the entire object on the other |