git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177250
91177308-0d34-0410-b5e6-
96231b3b80d8
bool AddressSanitizer::runOnFunction(Function &F) {
if (BL->isIn(F)) return false;
if (&F == AsanCtorFunction) return false;
bool AddressSanitizer::runOnFunction(Function &F) {
if (BL->isIn(F)) return false;
if (&F == AsanCtorFunction) return false;
+ if (F.getLinkage() == GlobalValue::AvailableExternallyLinkage) return false;
DEBUG(dbgs() << "ASAN instrumenting:\n" << F << "\n");
initializeCallbacks(*F.getParent());
DEBUG(dbgs() << "ASAN instrumenting:\n" << F << "\n");
initializeCallbacks(*F.getParent());
; CHECK: __asan_report_store_n{{.*}}, i64 10)
; CHECK: __asan_report_store_n{{.*}}, i64 10)
; CHECK: ret void
; CHECK: __asan_report_store_n{{.*}}, i64 10)
; CHECK: __asan_report_store_n{{.*}}, i64 10)
; CHECK: ret void
+
+; asan should not instrument functions with available_externally linkage.
+define available_externally i32 @f_available_externally(i32* %a) sanitize_address {
+entry:
+ %tmp1 = load i32* %a
+ ret i32 %tmp1
+}
+; CHECK: @f_available_externally
+; CHECK-NOT: __asan_report
+; CHECK: ret i32
+
+