| // RUN: %clang_cc1 -triple x86_64-apple-darwin10 -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s |
| // RUN: %clang_cc1 -triple arm64-none-linux-gnu -w -emit-llvm -o - %s -fsanitize=builtin | FileCheck %s --check-prefix=NOT-UB |
| |
| // NOT-UB-NOT: __ubsan_handle_invalid_builtin |
| |
| // CHECK: define void @check_ctz |
| void check_ctz(int n) { |
| // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize |
| // CHECK-NEXT: br i1 [[NOT_ZERO]] |
| // |
| // Handler block: |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| // CHECK-NEXT: unreachable |
| // |
| // Continuation block: |
| // CHECK: call i32 @llvm.cttz.i32(i32 [[N]], i1 true) |
| __builtin_ctz(n); |
| |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| __builtin_ctzl(n); |
| |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| __builtin_ctzll(n); |
| } |
| |
| // CHECK: define void @check_clz |
| void check_clz(int n) { |
| // CHECK: [[NOT_ZERO:%.*]] = icmp ne i32 [[N:%.*]], 0, !nosanitize |
| // CHECK-NEXT: br i1 [[NOT_ZERO]] |
| // |
| // Handler block: |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| // CHECK-NEXT: unreachable |
| // |
| // Continuation block: |
| // CHECK: call i32 @llvm.ctlz.i32(i32 [[N]], i1 true) |
| __builtin_clz(n); |
| |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| __builtin_clzl(n); |
| |
| // CHECK: call void @__ubsan_handle_invalid_builtin |
| __builtin_clzll(n); |
| } |
