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| author | Dan Gohman <gohman@apple.com> | 2009-08-25 17:49:57 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-08-25 17:49:57 +0000 |
| commit | 5bba145cbd5935b442e6a197eda3477f5d1372a5 (patch) | |
| tree | 68e1c2e4e47a149972cbbf61fa95d52ca8f70ee8 /lib | |
| parent | 1c17fd9fbdcfebe29c7ea59c2c7675e420aa49f5 (diff) | |
| download | external_llvm-5bba145cbd5935b442e6a197eda3477f5d1372a5.zip external_llvm-5bba145cbd5935b442e6a197eda3477f5d1372a5.tar.gz external_llvm-5bba145cbd5935b442e6a197eda3477f5d1372a5.tar.bz2 | |
Teach ScalarEvolution about GlobalAliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80014 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index ca2cdca..33d8a18 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -63,6 +63,7 @@ #include "llvm/Constants.h" #include "llvm/DerivedTypes.h" #include "llvm/GlobalVariable.h" +#include "llvm/GlobalAlias.h" #include "llvm/Instructions.h" #include "llvm/LLVMContext.h" #include "llvm/Operator.h" @@ -2906,6 +2907,8 @@ const SCEV *ScalarEvolution::createSCEV(Value *V) { return getIntegerSCEV(0, V->getType()); else if (isa<UndefValue>(V)) return getIntegerSCEV(0, V->getType()); + else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V)) + return GA->mayBeOverridden() ? getUnknown(V) : getSCEV(GA->getAliasee()); else return getUnknown(V); |