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