diff options
| -rw-r--r-- | clang/lib/Sema/SemaChecking.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp index f76ab083586..c1781c269d9 100644 --- a/clang/lib/Sema/SemaChecking.cpp +++ b/clang/lib/Sema/SemaChecking.cpp @@ -6199,6 +6199,13 @@ void Sema::CheckMemaccessArguments(const CallExpr *Call, const Expr *SizeOfArg = getSizeOfExprArg(LenExpr); llvm::FoldingSetNodeID SizeOfArgID; + // Although widely used, 'bzero' is not a standard function. Be more strict + // with the argument types before allowing diagnostics and only allow the + // form bzero(ptr, sizeof(...)). + QualType FirstArgTy = Call->getArg(0)->IgnoreParenImpCasts()->getType(); + if (BId == Builtin::BIbzero && !FirstArgTy->getAs<PointerType>()) + return; + for (unsigned ArgIdx = 0; ArgIdx != LastArg; ++ArgIdx) { const Expr *Dest = Call->getArg(ArgIdx)->IgnoreParenImpCasts(); SourceRange ArgRange = Call->getArg(ArgIdx)->getSourceRange(); |
