diff options
Diffstat (limited to 'lib/Analysis/BasicAliasAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/BasicAliasAnalysis.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp index 1b26dc421c..ef918507b7 100644 --- a/lib/Analysis/BasicAliasAnalysis.cpp +++ b/lib/Analysis/BasicAliasAnalysis.cpp @@ -319,7 +319,7 @@ BasicAliasAnalysis::getModRefInfo(CallSite CS, Value *P, unsigned Size) { // If the pointer is to a locally allocated object that does not escape, // then the call can not mod/ref the pointer unless the call takes the // argument without capturing it. - if (isNonEscapingLocalObject(Object)) { + if (isNonEscapingLocalObject(Object) && CS.getInstruction() != Object) { bool passedAsArg = false; // TODO: Eventually only check 'nocapture' arguments. for (CallSite::arg_iterator CI = CS.arg_begin(), CE = CS.arg_end(); @@ -414,10 +414,10 @@ BasicAliasAnalysis::alias(const Value *V1, unsigned V1Size, // non-escaping local object, then we know the object couldn't escape to a // point where the call could return it. if ((isa<CallInst>(O1) || isa<InvokeInst>(O1)) && - isNonEscapingLocalObject(O2)) + isNonEscapingLocalObject(O2) && O1 != O2) return NoAlias; if ((isa<CallInst>(O2) || isa<InvokeInst>(O2)) && - isNonEscapingLocalObject(O1)) + isNonEscapingLocalObject(O1) && O1 != O2) return NoAlias; // If we have two gep instructions with must-alias'ing base pointers, figure |