clang/test/CodeGen/rdpru-builtins.c

   1 // RUN: %clang_cc1 -ffreestanding %s -triple=i686-- -target-feature +rdpru -emit-llvm -o - -Wall -Werror | FileCheck %s
   2 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-- -target-feature +rdpru -emit-llvm -o - -Wall -Werror | FileCheck %s
   3 // RUN: %clang_cc1 -ffreestanding %s -triple=x86_64-- -target-cpu znver2 -emit-llvm -o - -Wall -Werror | FileCheck %s
   4
   5 #include <x86intrin.h>
   6
   7 // NOTE: This should correspond to the tests in llvm/test/CodeGen/X86/rdpru.ll
   8
   9 unsigned long long test_rdpru(int regid) {
  10   // CHECK-LABEL: test_rdpru
  11   // CHECK: [[RESULT:%.*]] = call i64 @llvm.x86.rdpru(i32 %{{.*}})
  12   // CHECK-NEXT: ret i64 [[RESULT]]
  13   return __rdpru(regid);
  14 }
  15
  16 unsigned long long test_mperf() {
  17   // CHECK-LABEL: test_mperf
  18   // CHECK: [[RESULT:%.*]] = call i64 @llvm.x86.rdpru(i32 0)
  19   // CHECK-NEXT: ret i64 [[RESULT]]
  20   return __mperf();
  21 }
  22
  23 unsigned long long test_aperf() {
  24   // CHECK-LABEL: test_aperf
  25   // CHECK: [[RESULT:%.*]] = call i64 @llvm.x86.rdpru(i32 1)
  26   // CHECK-NEXT: ret i64 [[RESULT]]
  27   return __aperf();
  28 }
  29
  30 void test_direct_calls_to_builtin_rdpru(int regid) {
  31   // CHECK: call i64 @llvm.x86.rdpru(i32 0)
  32   // CHECK: call i64 @llvm.x86.rdpru(i32 1)
  33   // CHECK: call i64 @llvm.x86.rdpru(i32 %{{.*}})
  34   (void) __builtin_ia32_rdpru(0);
  35   (void) __builtin_ia32_rdpru(1);
  36   (void) __builtin_ia32_rdpru(regid);
  37 }