| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=pointer-overflow | FileCheck %s |
| |
| // CHECK-LABEL: define void @variable_len_array_arith |
| void variable_len_array_arith(int n, int k) { |
| int vla[n]; |
| int (*p)[n] = &vla; |
| |
| // CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[INC:%.*]] |
| // CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[INC]]), !nosanitize |
| // CHECK-NOT: select |
| // CHECK: call void @__ubsan_handle_pointer_overflow{{.*}} |
| ++p; |
| |
| // CHECK: getelementptr inbounds i32, i32* {{.*}}, i64 [[IDXPROM:%.*]] |
| // CHECK: @llvm.smul.with.overflow.i64(i64 4, i64 [[IDXPROM]]), !nosanitize |
| // CHECK: select |
| // CHECK: call void @__ubsan_handle_pointer_overflow{{.*}} |
| p + k; |
| } |
| |
| // CHECK-LABEL: define void @objc_id |
| void objc_id(id *p) { |
| // CHECK: add i64 {{.*}}, 8, !nosanitize |
| // CHECK-NOT: select |
| // CHECK: @__ubsan_handle_pointer_overflow{{.*}} |
| p++; |
| } |
