| Vedant Kumar | 129edab | 2017-03-09 16:06:27 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -std=c++11 -triple x86_64-apple-darwin10 -emit-llvm -o - %s -fsanitize=bool,enum | FileCheck %s |
| 2 | |
| 3 | enum E { |
| 4 | a = 1, |
| 5 | b = 2, |
| 6 | c = 3 |
| 7 | }; |
| 8 | |
| 9 | struct S { |
| 10 | E e1 : 10; |
| 11 | }; |
| 12 | |
| 13 | // CHECK-LABEL: define i32 @_Z4loadP1S |
| 14 | E load(S *s) { |
| 15 | // CHECK: [[LOAD:%.*]] = load i16, i16* {{.*}} |
| 16 | // CHECK: [[CLEAR:%.*]] = and i16 [[LOAD]], 1023 |
| 17 | // CHECK: [[CAST:%.*]] = zext i16 [[CLEAR]] to i32 |
| 18 | // CHECK: icmp ule i32 [[CAST]], 3, !nosanitize |
| 19 | // CHECK: call void @__ubsan_handle_load_invalid_value |
| 20 | return s->e1; |
| 21 | } |
| 22 | |
| 23 | struct Bool { |
| 24 | bool b1 : 1; |
| 25 | bool b2 : 7; |
| 26 | bool b3 : 16; |
| 27 | }; |
| 28 | |
| 29 | // CHECK-LABEL: define zeroext i1 @_Z13load_cpp_boolP4Bool |
| 30 | bool load_cpp_bool(Bool *b) { |
| 31 | // CHECK-NOT: call void @__ubsan_handle_load_invalid_value |
| 32 | // CHECK-NOT: !nosanitize |
| 33 | return b->b1 || b->b2 || b->b3; |
| 34 | } |