clang/test/CodeGen/X86/x86-builtins.c

   1 // RUN: %clang_cc1 -x c -ffreestanding %s -triple=x86_64-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
   2 // RUN: %clang_cc1 -x c -ffreestanding %s -triple=i386-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
   3 // RUN: %clang_cc1 -x c++ -std=c++11 -ffreestanding %s -triple=x86_64-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
   4 // RUN: %clang_cc1 -x c++ -std=c++11 -ffreestanding %s -triple=i386-unknown-unknown -emit-llvm -o - -Wall -Werror | FileCheck %s
   5
   6 #include <x86intrin.h>
   7
   8 unsigned int test_castf32_u32 (float __A){
   9   // CHECK-LABEL: test_castf32_u32
  10   // CHECK: %{{.*}} = load i32, ptr %{{.*}}, align 4
  11   return _castf32_u32(__A);
  12 }
  13
  14 unsigned long long test_castf64_u64 (double __A){
  15   // CHECK-LABEL: test_castf64_u64
  16   // CHECK: %{{.*}} = load i64, ptr %{{.*}}, align 8
  17   return _castf64_u64(__A);
  18 }
  19
  20 float test_castu32_f32 (unsigned int __A){
  21   // CHECK-LABEL: test_castu32_f32
  22   // CHECK: %{{.*}} = load float, ptr %{{.*}}, align 4
  23   return _castu32_f32(__A);
  24 }
  25
  26 double test_castu64_f64 (unsigned long long __A){
  27   // CHECK-LABEL: test_castu64_f64
  28   // CHECK: %{{.*}} = load double, ptr %{{.*}}, align 8
  29   return _castu64_f64(__A);
  30 }
  31
  32 // Test constexpr handling.
  33 #if defined(__cplusplus) && (__cplusplus >= 201103L)
  34 char cast_f32_u32_0[_castf32_u32(-0.0f) == 0x80000000 ? 1 : -1];
  35 char cast_u32_f32_0[_castu32_f32(0x3F800000) == +1.0f ? 1 : -1];
  36
  37 char castf64_u64_0[_castf64_u64(-0.0) == 0x8000000000000000 ? 1 : -1];
  38 char castu64_f64_0[_castu64_f64(0xBFF0000000000000ULL) == -1.0 ? 1 : -1];
  39 #endif