clang/test/CodeGen/bounds-checking-fam.cpp

   1 // REQUIRES: x86-registered-target
   2 // RUN: %clang_cc1 -emit-llvm -triple x86_64 -fsanitize=array-bounds %s -o - | FileCheck %s --check-prefixes=CHECK,CHECK-STRICT-0
   3 //
   4 // Disable checks on FAM even though the class doesn't have standard layout.
   5
   6 struct C {
   7   int head;
   8 };
   9
  10 struct S : C {
  11   int tail[1];
  12 };
  13
  14 // CHECK-LABEL: define {{.*}} @_Z8test_oneP1Si(
  15 int test_one(S *p, int i) {
  16   // CHECK-STRICT-0-NOT: @__ubsan
  17   return p->tail[i] + (p->tail)[i];
  18 }