17 lines · c
1// RUN: %clang_cc1 -triple arm64-apple-macosx14.0.0 -O0 -debug-info-kind=standalone -dwarf-version=5 \2// RUN: -fsanitize=pointer-overflow -fsanitize-trap=pointer-overflow -emit-llvm %s -o - | FileCheck %s3 4#include <stddef.h>5#include <stdint.h>6 7int *pointer_overflow(void) {8 int buf[4];9 volatile size_t n = (SIZE_MAX / sizeof(int)) - 1;10 return buf + n;11}12 13// CHECK-LABEL: @pointer_overflow14// CHECK: call void @llvm.ubsantrap(i8 19) {{.*}}!dbg [[LOC:![0-9]+]]15// CHECK: [[LOC]] = !DILocation(line: 0, scope: [[MSG:![0-9]+]], {{.+}})16// CHECK: [[MSG]] = distinct !DISubprogram(name: "__clang_trap_msg$Undefined Behavior Sanitizer$Pointer arithmetic overflowed bounds"17