| ; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs -enable-unsafe-fp-math < %s | FileCheck -check-prefix=SI-UNSAFE -check-prefix=SI %s |
| ; RUN: llc -march=r600 -mcpu=SI -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -check-prefix=SI-SAFE -check-prefix=SI %s |
| |
| declare float @llvm.sqrt.f32(float) nounwind readnone |
| declare double @llvm.sqrt.f64(double) nounwind readnone |
| |
| ; SI-LABEL: @rsq_f32 |
| ; SI: V_RSQ_F32_e32 |
| ; SI: S_ENDPGM |
| define void @rsq_f32(float addrspace(1)* noalias %out, float addrspace(1)* noalias %in) nounwind { |
| %val = load float addrspace(1)* %in, align 4 |
| %sqrt = call float @llvm.sqrt.f32(float %val) nounwind readnone |
| %div = fdiv float 1.0, %sqrt |
| store float %div, float addrspace(1)* %out, align 4 |
| ret void |
| } |
| |
| ; SI-LABEL: @rsq_f64 |
| ; SI-UNSAFE: V_RSQ_F64_e32 |
| ; SI-SAFE: V_SQRT_F64_e32 |
| ; SI: S_ENDPGM |
| define void @rsq_f64(double addrspace(1)* noalias %out, double addrspace(1)* noalias %in) nounwind { |
| %val = load double addrspace(1)* %in, align 4 |
| %sqrt = call double @llvm.sqrt.f64(double %val) nounwind readnone |
| %div = fdiv double 1.0, %sqrt |
| store double %div, double addrspace(1)* %out, align 4 |
| ret void |
| } |