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 4 5 declare i32 @llvm.x86.rdpkru() 6 declare void @llvm.x86.wrpkru(i32) 7 8 define void @test_x86_wrpkru(i32 %src) { 9 ; X86-LABEL: test_x86_wrpkru: 10 ; X86: ## %bb.0: 11 ; X86-NEXT: movl {{[0-9]+}}(%esp), %eax ## encoding: [0x8b,0x44,0x24,0x04] 12 ; X86-NEXT: xorl %ecx, %ecx ## encoding: [0x31,0xc9] 13 ; X86-NEXT: xorl %edx, %edx ## encoding: [0x31,0xd2] 14 ; X86-NEXT: wrpkru ## encoding: [0x0f,0x01,0xef] 15 ; X86-NEXT: retl ## encoding: [0xc3] 16 ; 17 ; X64-LABEL: test_x86_wrpkru: 18 ; X64: ## %bb.0: 19 ; X64-NEXT: xorl %ecx, %ecx ## encoding: [0x31,0xc9] 20 ; X64-NEXT: xorl %edx, %edx ## encoding: [0x31,0xd2] 21 ; X64-NEXT: movl %edi, %eax ## encoding: [0x89,0xf8] 22 ; X64-NEXT: wrpkru ## encoding: [0x0f,0x01,0xef] 23 ; X64-NEXT: retq ## encoding: [0xc3] 24 call void @llvm.x86.wrpkru(i32 %src) 25 ret void 26 } 27 28 define i32 @test_x86_rdpkru() { 29 ; CHECK-LABEL: test_x86_rdpkru: 30 ; CHECK: ## %bb.0: 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() 35 ret i32 %res 36 } 37
