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