1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s -mtriple=i686-apple-darwin -mcpu=knl --show-mc-encoding -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK,X86
3 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=knl --show-mc-encoding -verify-machineinstrs | FileCheck %s --check-prefixes=CHECK,X64
5 declare i32 @llvm.x86.rdpkru()
6 declare void @llvm.x86.wrpkru(i32)
8 define void @test_x86_wrpkru(i32 %src) {
9 ; X86-LABEL: test_x86_wrpkru:
11 ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ## encoding: [0x8b,0x44,0x24,0x04]
12 ; X86-NEXT: xorl %edx, %edx ## encoding: [0x31,0xd2]
13 ; X86-NEXT: xorl %ecx, %ecx ## encoding: [0x31,0xc9]
14 ; X86-NEXT: wrpkru ## encoding: [0x0f,0x01,0xef]
15 ; X86-NEXT: retl ## encoding: [0xc3]
17 ; X64-LABEL: test_x86_wrpkru:
19 ; X64-NEXT: movl %edi, %eax ## encoding: [0x89,0xf8]
20 ; X64-NEXT: xorl %edx, %edx ## encoding: [0x31,0xd2]
21 ; X64-NEXT: xorl %ecx, %ecx ## encoding: [0x31,0xc9]
22 ; X64-NEXT: wrpkru ## encoding: [0x0f,0x01,0xef]
23 ; X64-NEXT: retq ## encoding: [0xc3]
24 call void @llvm.x86.wrpkru(i32 %src)
28 define i32 @test_x86_rdpkru() {
29 ; CHECK-LABEL: test_x86_rdpkru:
31 ; CHECK-NEXT: xorl %ecx, %ecx ## encoding: [0x31,0xc9]
32 ; CHECK-NEXT: rdpkru ## encoding: [0x0f,0x01,0xee]
33 ; CHECK-NEXT: ret{{[l|q]}} ## encoding: [0xc3]
34 %res = call i32 @llvm.x86.rdpkru()