1 ; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=knl --show-mc-encoding -verify-machineinstrs | FileCheck %s 2 declare i32 @llvm.x86.rdpkru() 3 declare void @llvm.x86.wrpkru(i32) 4 5 define void @test_x86_wrpkru(i32 %src) { 6 ; CHECK-LABEL: test_x86_wrpkru: 7 ; CHECK: ## BB#0: 8 ; CHECK-NEXT: xorl %ecx, %ecx 9 ; CHECK-NEXT: xorl %edx, %edx 10 ; CHECK-NEXT: movl %edi, %eax 11 ; CHECK-NEXT: wrpkru 12 ; CHECK-NEXT: retq 13 call void @llvm.x86.wrpkru(i32 %src) 14 ret void 15 } 16 17 define i32 @test_x86_rdpkru() { 18 ; CHECK-LABEL: test_x86_rdpkru: 19 ; CHECK: ## BB#0: 20 ; CHECK-NEXT: xorl %ecx, %ecx 21 ; CHECK-NEXT: rdpkru 22 ; CHECK-NEXT: retq 23 %res = call i32 @llvm.x86.rdpkru() 24 ret i32 %res 25 } 26
