| Vedant Kumar | 10c3102 | 2017-07-29 00:19:51 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s |
| 2 | // RUN: %clang_cc1 -triple arm64-none-linux-gnu -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s --check-prefix=NOT-UB |
| 3 | |
| 4 | // NOT-UB-NOT: __ubsan_handle_invalid_builtin |
| 5 | |
| 6 | // CHECK: define void @check_ctz |
| 7 | void check_ctz(int n) { |
| 8 | // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize |
| 9 | // CHECK-NEXT: br i1 [[NOT_ZERO]] |
| 10 | // |
| 11 | // Handler block: |
| 12 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 13 | // CHECK-NEXT: unreachable |
| 14 | // |
| 15 | // Continuation block: |
| 16 | // CHECK: call i32 @llvm.cttz.i32(i32 [[N]], i1 true) |
| 17 | __builtin_ctz(n); |
| 18 | |
| 19 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 20 | __builtin_ctzl(n); |
| 21 | |
| 22 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 23 | __builtin_ctzll(n); |
| 24 | } |
| 25 | |
| 26 | // CHECK: define void @check_clz |
| 27 | void check_clz(int n) { |
| 28 | // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize |
| 29 | // CHECK-NEXT: br i1 [[NOT_ZERO]] |
| 30 | // |
| 31 | // Handler block: |
| 32 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 33 | // CHECK-NEXT: unreachable |
| 34 | // |
| 35 | // Continuation block: |
| 36 | // CHECK: call i32 @llvm.ctlz.i32(i32 [[N]], i1 true) |
| 37 | __builtin_clz(n); |
| 38 | |
| 39 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 40 | __builtin_clzl(n); |
| 41 | |
| 42 | // CHECK: call void @__ubsan_handle_invalid_builtin |
| 43 | __builtin_clzll(n); |
| 44 | } |