1 ; RUN: llc -march=amdgcn -mcpu=SI -mattr=-fp32-denormals -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=SI-UNSAFE -check-prefix=SI -check-prefix=FUNC %s 2 ; RUN: llc -march=amdgcn -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s 3 ; XUN: llc -march=amdgcn -mcpu=SI -mattr=+fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE-SPDENORM -check-prefix=SI -check-prefix=FUNC %s 4 ; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-fp32-denormals -enable-unsafe-fp-math -verify-machineinstrs < %s | FileCheck -check-prefix=SI-UNSAFE -check-prefix=SI -check-prefix=FUNC %s 5 ; RUN: llc -march=amdgcn -mcpu=tonga -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI -check-prefix=FUNC %s 6 ; XUN: llc -march=amdgcn -mcpu=tonga -mattr=+fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE-SPDENORM -check-prefix=SI -check-prefix=FUNC %s 7 8 ; RUN: llc -march=r600 -mcpu=cypress -verify-machineinstrs < %s | FileCheck -check-prefix=EG-SAFE -check-prefix=FUNC %s 9 ; RUN: llc -march=r600 -mcpu=cayman -verify-machineinstrs < %s | FileCheck -check-prefix=EG -check-prefix=FUNC %s 10 11 declare float @llvm.AMDGPU.rcp.f32(float) nounwind readnone 12 declare double @llvm.AMDGPU.rcp.f64(double) nounwind readnone 13 14 declare float @llvm.sqrt.f32(float) nounwind readnone 15 16 ; FUNC-LABEL: {{^}}rcp_f32: 17 ; SI: v_rcp_f32_e32 18 ; EG: RECIP_IEEE 19 define void @rcp_f32(float addrspace(1)* %out, float %src) nounwind { 20 %rcp = call float @llvm.AMDGPU.rcp.f32(float %src) nounwind readnone 21 store float %rcp, float addrspace(1)* %out, align 4 22 ret void 23 } 24 25 ; FIXME: Evergreen only ever does unsafe fp math. 26 ; FUNC-LABEL: {{^}}rcp_pat_f32: 27 28 ; SI-SAFE: v_rcp_f32_e32 29 ; XSI-SAFE-SPDENORM-NOT: v_rcp_f32_e32 30 31 ; EG: RECIP_IEEE 32 33 define void @rcp_pat_f32(float addrspace(1)* %out, float %src) nounwind { 34 %rcp = fdiv float 1.0, %src 35 store float %rcp, float addrspace(1)* %out, align 4 36 ret void 37 } 38 39 ; FUNC-LABEL: {{^}}rsq_rcp_pat_f32: 40 ; SI-UNSAFE: v_rsq_f32_e32 41 ; SI-SAFE: v_sqrt_f32_e32 42 ; SI-SAFE: v_rcp_f32_e32 43 44 ; EG: RECIPSQRT_IEEE 45 define void @rsq_rcp_pat_f32(float addrspace(1)* %out, float %src) nounwind { 46 %sqrt = call float @llvm.sqrt.f32(float %src) nounwind readnone 47 %rcp = call float @llvm.AMDGPU.rcp.f32(float %sqrt) nounwind readnone 48 store float %rcp, float addrspace(1)* %out, align 4 49 ret void 50 } 51
