File: pause.ll

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llvm-toolchain-9 1%3A9.0.1-16
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -disable-peephole -mtriple=i386-apple-darwin -mattr=-sse -show-mc-encoding | FileCheck %s
; RUN: llc < %s -disable-peephole -mtriple=i386-apple-darwin -mattr=-avx,+sse2 -show-mc-encoding | FileCheck %s
; RUN: llc < %s -disable-peephole -mtriple=i386-apple-darwin -mattr=+avx2 -show-mc-encoding | FileCheck %s
; RUN: llc < %s -disable-peephole -mtriple=i386-apple-darwin -mcpu=skx -show-mc-encoding | FileCheck %s

define void @test_x86_sse2_pause() {
; CHECK-LABEL: test_x86_sse2_pause:
; CHECK:       ## %bb.0:
; CHECK-NEXT:    pause ## encoding: [0xf3,0x90]
; CHECK-NEXT:    retl ## encoding: [0xc3]
  tail call void @llvm.x86.sse2.pause()
  ret void
}
declare void @llvm.x86.sse2.pause() nounwind