xref: /aosp_15_r20/external/clang/test/CodeGen/lifetime-asan.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li // RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 %s | FileCheck %s -check-prefix=CHECK-O0
2*67e74705SXin Li // RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 \
3*67e74705SXin Li // RUN:     -fsanitize=address -fsanitize-address-use-after-scope %s | \
4*67e74705SXin Li // RUN:     FileCheck %s -check-prefix=CHECK-ASAN-USE-AFTER-SCOPE
5*67e74705SXin Li 
6*67e74705SXin Li extern int bar(char *A, int n);
7*67e74705SXin Li 
8*67e74705SXin Li // CHECK-O0-NOT: @llvm.lifetime.start
foo(int n)9*67e74705SXin Li int foo(int n) {
10*67e74705SXin Li   if (n) {
11*67e74705SXin Li     // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start(i64 10, i8* {{.*}})
12*67e74705SXin Li     char A[10];
13*67e74705SXin Li     return bar(A, 1);
14*67e74705SXin Li     // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end(i64 10, i8* {{.*}})
15*67e74705SXin Li   } else {
16*67e74705SXin Li     // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.start(i64 20, i8* {{.*}})
17*67e74705SXin Li     char A[20];
18*67e74705SXin Li     return bar(A, 2);
19*67e74705SXin Li     // CHECK-ASAN-USE-AFTER-SCOPE: @llvm.lifetime.end(i64 20, i8* {{.*}})
20*67e74705SXin Li   }
21*67e74705SXin Li }
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