| // RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -fno-exceptions -O0 %s | FileCheck %s -check-prefixes=CHECK,CHECK-O0 --implicit-check-not=llvm.lifetime |
| // RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -fno-exceptions -O0 \ |
| // RUN: -fsanitize=address -fsanitize-address-use-after-scope %s | \ |
| // RUN: FileCheck %s -check-prefixes=CHECK,CHECK-ASAN-USE-AFTER-SCOPE |
| |
| extern int bar(char *A, int n); |
| |
| struct X { X(); ~X(); int *p; }; |
| struct Y { Y(); int *p; }; |
| |
| extern "C" void a(), b(), c(), d(); |
| |
| // CHECK-LABEL: @_Z3foo |
| void foo(int n) { |
| // CHECK: call void @a() |
| a(); |
| |
| // CHECK: call void @b() |
| // CHECK-ASAN-USE-AFTER-SCOPE: store i1 false |
| // CHECK-ASAN-USE-AFTER-SCOPE: store i1 false |
| // CHECK: br i1 |
| // |
| // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start |
| // CHECK-ASAN-USE-AFTER-SCOPE: store i1 true |
| // CHECK: call void @_ZN1XC |
| // CHECK: br label |
| // |
| // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start |
| // CHECK-ASAN-USE-AFTER-SCOPE: store i1 true |
| // CHECK: call void @_ZN1YC |
| // CHECK: br label |
| // |
| // CHECK: call void @c() |
| // CHECK-ASAN-USE-AFTER-SCOPE: br i1 |
| // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end |
| // CHECK-ASAN-USE-AFTER-SCOPE: br i1 |
| // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end |
| b(), (n ? X().p : Y().p), c(); |
| |
| // CHECK: call void @d() |
| d(); |
| } |