diff options
| author | Duncan Sands <baldrick@free.fr> | 2007-12-05 21:03:28 +0000 |
|---|---|---|
| committer | Duncan Sands <baldrick@free.fr> | 2007-12-05 21:03:28 +0000 |
| commit | 5d84afdc836fa28d840449108206e850617a2a15 (patch) | |
| tree | 37ff8418f9a648c6360cb6800f1269c3ed311e1c /lib/Analysis/AliasAnalysis.cpp | |
| parent | 8c24e74b02bea8681eac497075e6c27ef15aa2ea (diff) | |
Commit 44487 broke bootstrap of llvm-gcc-4.2. It is
not yet clear why, but in the meantime work around the
problem by making less use of readnone/readonly info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44626 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/AliasAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/AliasAnalysis.cpp | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/lib/Analysis/AliasAnalysis.cpp b/lib/Analysis/AliasAnalysis.cpp index 12ea937fa9..fe3f41a9ce 100644 --- a/lib/Analysis/AliasAnalysis.cpp +++ b/lib/Analysis/AliasAnalysis.cpp @@ -116,13 +116,17 @@ AliasAnalysis::getModRefInfo(StoreInst *S, Value *P, unsigned Size) { AliasAnalysis::ModRefBehavior AliasAnalysis::getModRefBehavior(CallSite CS, std::vector<PointerAccessInfo> *Info) { - if (CS.doesNotAccessMemory()) + if (CS.doesNotAccessMemory() && + // FIXME: workaround gcc bootstrap breakage + CS.getCalledFunction() && CS.getCalledFunction()->isDeclaration()) // Can't do better than this. return DoesNotAccessMemory; ModRefBehavior MRB = UnknownModRefBehavior; if (Function *F = CS.getCalledFunction()) MRB = getModRefBehavior(F, CS, Info); - if (MRB != DoesNotAccessMemory && CS.onlyReadsMemory()) + if (MRB != DoesNotAccessMemory && CS.onlyReadsMemory() && + // FIXME: workaround gcc bootstrap breakage + CS.getCalledFunction() && CS.getCalledFunction()->isDeclaration()) return OnlyReadsMemory; return MRB; } @@ -130,11 +134,15 @@ AliasAnalysis::getModRefBehavior(CallSite CS, AliasAnalysis::ModRefBehavior AliasAnalysis::getModRefBehavior(Function *F, std::vector<PointerAccessInfo> *Info) { - if (F->doesNotAccessMemory()) + if (F->doesNotAccessMemory() && + // FIXME: workaround gcc bootstrap breakage + F->isDeclaration()) // Can't do better than this. return DoesNotAccessMemory; ModRefBehavior MRB = getModRefBehavior(F, CallSite(), Info); - if (MRB != DoesNotAccessMemory && F->onlyReadsMemory()) + if (MRB != DoesNotAccessMemory && F->onlyReadsMemory() && + // FIXME: workaround gcc bootstrap breakage + F->isDeclaration()) return OnlyReadsMemory; return MRB; } |