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; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=SI-UNSAFE -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s
; XUN: llc -march=r600 -mcpu=SI -mattr=+fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE-SPDENORM -check-prefix=SI -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG-SAFE -check-prefix=FUNC %s
; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s
declare float @llvm.AMDGPU.rcp.f32(float) nounwind readnone
declare double @llvm.AMDGPU.rcp.f64(double) nounwind readnone
declare float @llvm.sqrt.f32(float) nounwind readnone
; FUNC-LABEL: @rcp_f32
; SI: V_RCP_F32_e32
; EG: RECIP_IEEE
define void @rcp_f32(float addrspace(1)* %out, float %src) nounwind {
%rcp = call float @llvm.AMDGPU.rcp.f32(float %src) nounwind readnone
store float %rcp, float addrspace(1)* %out, align 4
ret void
}
; FIXME: Evergreen only ever does unsafe fp math.
; FUNC-LABEL: @rcp_pat_f32
; SI-SAFE: V_RCP_F32_e32
; XSI-SAFE-SPDENORM-NOT: V_RCP_F32_e32
; EG: RECIP_IEEE
define void @rcp_pat_f32(float addrspace(1)* %out, float %src) nounwind {
%rcp = fdiv float 1.0, %src
store float %rcp, float addrspace(1)* %out, align 4
ret void
}
; FUNC-LABEL: @rsq_rcp_pat_f32
; SI-UNSAFE: V_RSQ_F32_e32
; SI-SAFE: V_SQRT_F32_e32
; SI-SAFE: V_RCP_F32_e32
; EG: RECIPSQRT_IEEE
define void @rsq_rcp_pat_f32(float addrspace(1)* %out, float %src) nounwind {
%sqrt = call float @llvm.sqrt.f32(float %src) nounwind readnone
%rcp = call float @llvm.AMDGPU.rcp.f32(float %sqrt) nounwind readnone
store float %rcp, float addrspace(1)* %out, align 4
ret void
}
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