File: llvm.AMDGPU.legacy.rsq.ll

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llvm-toolchain-3.8 1%3A3.8.1-24
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; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s

declare float @llvm.AMDGPU.legacy.rsq(float) nounwind readnone

; FUNC-LABEL: {{^}}rsq_legacy_f32:
; SI: v_rsq_legacy_f32_e32
; EG: RECIPSQRT_IEEE
define void @rsq_legacy_f32(float addrspace(1)* %out, float %src) nounwind {
  %rsq = call float @llvm.AMDGPU.legacy.rsq(float %src) nounwind readnone
  store float %rsq, float addrspace(1)* %out, align 4
  ret void
}