clang/test/CodeGen/sanitize-metadata.c

   1 // RUN: %clang_cc1 -O -fexperimental-sanitize-metadata=atomics -triple x86_64-gnu-linux -x c -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,ATOMICS
   2 // RUN: %clang_cc1 -O -fexperimental-sanitize-metadata=atomics -triple aarch64-gnu-linux -x c -emit-llvm %s -o - | FileCheck %s --check-prefixes=CHECK,ATOMICS
   3
   4 // CHECK: @__start_sanmd_atomics2 = extern_weak hidden global ptr
   5 // CHECK: @__stop_sanmd_atomics2 = extern_weak hidden global ptr
   6 // CHECK: @__start_sanmd_covered2 = extern_weak hidden global ptr
   7 // CHECK: @__stop_sanmd_covered2 = extern_weak hidden global ptr
   8
   9 int x, y;
  10
  11 void empty() {
  12 // CHECK-NOT: define dso_local void @empty() {{.*}} !pcsections
  13 }
  14
  15 int atomics() {
  16 // ATOMICS-LABEL: define dso_local i32 @atomics()
  17 // ATOMICS-SAME:                                  !pcsections ![[ATOMICS_COVERED:[0-9]+]]
  18 // ATOMICS-NEXT:  entry:
  19 // ATOMICS-NEXT:    atomicrmw add {{.*}} !pcsections ![[ATOMIC_OP:[0-9]+]]
  20 // ATOMICS-NOT:     load {{.*}} !pcsections
  21   __atomic_fetch_add(&x, 1, __ATOMIC_RELAXED);
  22   return y;
  23 }
  24 // ATOMICS-LABEL: __sanitizer_metadata_atomics2.module_ctor
  25 // ATOMICS: call void @__sanitizer_metadata_atomics_add(i32 2, ptr @__start_sanmd_atomics2, ptr @__stop_sanmd_atomics2)
  26 // ATOMICS-LABEL: __sanitizer_metadata_atomics2.module_dtor
  27 // ATOMICS: call void @__sanitizer_metadata_atomics_del(i32 2, ptr @__start_sanmd_atomics2, ptr @__stop_sanmd_atomics2)
  28
  29 // CHECK-LABEL: __sanitizer_metadata_covered2.module_ctor
  30 // CHECK: call void @__sanitizer_metadata_covered_add(i32 2, ptr @__start_sanmd_covered2, ptr @__stop_sanmd_covered2)
  31 // CHECK-LABEL: __sanitizer_metadata_covered2.module_dtor
  32 // CHECK: call void @__sanitizer_metadata_covered_del(i32 2, ptr @__start_sanmd_covered2, ptr @__stop_sanmd_covered2)
  33
  34 // ATOMICS: ![[ATOMICS_COVERED]] = !{!"sanmd_covered2!C", ![[ATOMICS_COVERED_AUX:[0-9]+]]}
  35 // ATOMICS: ![[ATOMICS_COVERED_AUX]] = !{i64 1}
  36 // ATOMICS: ![[ATOMIC_OP]] = !{!"sanmd_atomics2!C"}