clang/test/CodeGen/memtag-attr.cpp

   1 // Make sure the sanitize_memtag attribute is emitted when using MemTag sanitizer.
   2 // Make sure __attribute__((no_sanitize("memtag")) disables instrumentation.
   3
   4 // RUN: %clang_cc1 -triple aarch64-unknown-linux -disable-O0-optnone \
   5 // RUN:   -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-NO %s
   6
   7 // RUN: %clang_cc1 -triple aarch64-unknown-linux -fsanitize=memtag-stack \
   8 // RUN:   -disable-O0-optnone -emit-llvm -o - %s | \
   9 // RUN:   FileCheck -check-prefix=CHECK-MEMTAG %s
  10
  11 // RUN: %clang --target=aarch64-unknown-linux -march=armv8a+memtag \
  12 // RUN:   -fsanitize=memtag -disable-O0-optnone -S -emit-llvm -o - %s | \
  13 // RUN:   FileCheck -check-prefix=CHECK-MEMTAG %s
  14
  15 extern "C" int HasSanitizeMemTag() { return 1; }
  16 // CHECK-NO: Function Attrs
  17 // CHECK-NO-NOT: sanitize_memtag
  18 // CHECK-NO-NEXT: define {{.*}} @HasSanitizeMemTag(
  19 // CHECK-MEMTAG: Function Attrs: {{.*}} sanitize_memtag
  20 // CHECK-MEMTAG-NEXT: define {{.*}} @HasSanitizeMemTag(
  21
  22 extern "C" __attribute__((no_sanitize("memtag"))) int NoSanitizeQuoteAddress() {
  23   return 0;
  24 }
  25 // CHECK-NO: Function Attrs
  26 // CHECK-NO-NOT: sanitize_memtag
  27 // CHECK-NO-NEXT: define {{.*}} @NoSanitizeQuoteAddress(
  28 // CHECK-MEMTAG: Function Attrs
  29 // CHECK-MEMTAG-NOT: sanitize_memtag
  30 // CHECK-MEMTAG-NEXT: define {{.*}} @NoSanitizeQuoteAddress(