File: lifetime-sanitizer.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 995,808 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (27 lines) | stat: -rw-r--r-- 1,035 bytes parent folder | download | duplicates (8) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
 
// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 %s | FileCheck %s -check-prefix=CHECK-O0
// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 \
// RUN:     -fsanitize=address -fsanitize-address-use-after-scope %s | \
// RUN:     FileCheck %s -check-prefix=LIFETIME
// RUN: %clang -target x86_64-linux-gnu -S -emit-llvm -o - -O0 \
// RUN:     -fsanitize=memory %s | \
// RUN:     FileCheck %s -check-prefix=LIFETIME
// RUN: %clang -target aarch64-linux-gnu -S -emit-llvm -o - -O0 \
// RUN:     -fsanitize=hwaddress %s | \
// RUN:     FileCheck %s -check-prefix=LIFETIME

extern int bar(char *A, int n);

// CHECK-O0-NOT: @llvm.lifetime.start
int foo(int n) {
  if (n) {
    // LIFETIME: @llvm.lifetime.start.p0i8(i64 10, i8* {{.*}})
    char A[10];
    return bar(A, 1);
    // LIFETIME: @llvm.lifetime.end.p0i8(i64 10, i8* {{.*}})
  } else {
    // LIFETIME: @llvm.lifetime.start.p0i8(i64 20, i8* {{.*}})
    char A[20];
    return bar(A, 2);
    // LIFETIME: @llvm.lifetime.end.p0i8(i64 20, i8* {{.*}})
  }
}