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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121727 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-12-13 22:53:18 +00:00
parent 6b8719fd7d
commit c1f1efdd1a
1 changed files with 3 additions and 4 deletions
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7
lib/Analysis/Lint.cpp
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@ -226,10 +226,9 @@ void Lint::visitCallSite(CallSite CS) {
"Undefined behavior: Call argument type mismatches "
"callee parameter type", &I);
// Check that noalias arguments don't alias other arguments. The
// AliasAnalysis API isn't expressive enough for what we really want
// to do. Known partial overlap is not distinguished from the case
// where nothing is known.
// Check that noalias arguments don't alias other arguments. This is
// not fully precise because we don't know the sizes of the dereferenced
// memory regions.
if (Formal->hasNoAliasAttr() && Actual->getType()->isPointerTy())
for (CallSite::arg_iterator BI = CS.arg_begin(); BI != AE; ++BI)
if (AI != BI && (*BI)->getType()->isPointerTy()) {