clang/test/CodeGen/builtin-allow-runtime-check.cpp

   1 // NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --version 4
   2 // RUN: %clang_cc1 -cc1 -triple x86_64-pc-linux-gnu -emit-llvm -o - %s | FileCheck %s
   3
   4 static_assert(__has_builtin(__builtin_allow_runtime_check), "");
   5
   6 // CHECK-LABEL: define dso_local noundef zeroext i1 @_Z4testv(
   7 // CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
   8 // CHECK-NEXT:  entry:
   9 // CHECK-NEXT:    [[TMP0:%.*]] = call i1 @llvm.allow.runtime.check(metadata !"mycheck")
  10 // CHECK-NEXT:    ret i1 [[TMP0]]
  11 //
  12 bool test() {
  13   return __builtin_allow_runtime_check("mycheck");
  14 }
  15
  16 // CHECK-LABEL: define dso_local noundef zeroext i1 @_Z10test_twicev(
  17 // CHECK-SAME: ) #[[ATTR0]] {
  18 // CHECK-NEXT:  entry:
  19 // CHECK-NEXT:    [[TMP0:%.*]] = call i1 @llvm.allow.runtime.check(metadata !"mycheck")
  20 // CHECK-NEXT:    [[CONV:%.*]] = zext i1 [[TMP0]] to i32
  21 // CHECK-NEXT:    [[TMP1:%.*]] = call i1 @llvm.allow.runtime.check(metadata !"mycheck")
  22 // CHECK-NEXT:    [[CONV1:%.*]] = zext i1 [[TMP1]] to i32
  23 // CHECK-NEXT:    [[OR:%.*]] = or i32 [[CONV]], [[CONV1]]
  24 // CHECK-NEXT:    [[TOBOOL:%.*]] = icmp ne i32 [[OR]], 0
  25 // CHECK-NEXT:    ret i1 [[TOBOOL]]
  26 //
  27 bool test_twice() {
  28   return __builtin_allow_runtime_check("mycheck") | __builtin_allow_runtime_check("mycheck");
  29 }