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

   1 // RUN: %clang_cc1 -ffreestanding -triple x86_64-unknown-unknown -emit-llvm -o - %s | FileCheck %s
   2
   3
   4 #include <x86intrin.h>
   5
   6 unsigned long long test_rdpmc(int a) {
   7   return _rdpmc(a);
   8 // CHECK: @test_rdpmc
   9 // CHECK: call i64 @llvm.x86.rdpmc
  10 }
  11
  12 int test_rdtsc(void) {
  13   return _rdtsc();
  14 // CHECK: @test_rdtsc
  15 // CHECK: call i64 @llvm.x86.rdtsc
  16 }
  17
  18 unsigned long long test_rdtscp(unsigned int *a) {
  19 // CHECK: @test_rdtscp
  20 // CHECK: [[RDTSCP:%.*]] = call { i64, i32 } @llvm.x86.rdtscp
  21 // CHECK: [[TSC_AUX:%.*]] = extractvalue { i64, i32 } [[RDTSCP]], 1
  22 // CHECK: store i32 [[TSC_AUX]], ptr %{{.*}}
  23 // CHECK: [[TSC:%.*]] = extractvalue { i64, i32 } [[RDTSCP]], 0
  24   return __rdtscp(a);
  25 }