| ; RUN: llc -march=amdgcn -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| ; RUN: llc -march=amdgcn -mcpu=tonga -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s |
| |
| declare double @llvm.AMDGPU.rcp.f64(double) nounwind readnone |
| declare double @llvm.sqrt.f64(double) nounwind readnone |
| |
| ; FUNC-LABEL: {{^}}rcp_f64: |
| ; SI: v_rcp_f64_e32 |
| define void @rcp_f64(double addrspace(1)* %out, double %src) nounwind { |
| %rcp = call double @llvm.AMDGPU.rcp.f64(double %src) nounwind readnone |
| store double %rcp, double addrspace(1)* %out, align 8 |
| ret void |
| } |
| |
| ; FUNC-LABEL: {{^}}rcp_pat_f64: |
| ; SI: v_rcp_f64_e32 |
| define void @rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind { |
| %rcp = fdiv double 1.0, %src |
| store double %rcp, double addrspace(1)* %out, align 8 |
| ret void |
| } |
| |
| ; FUNC-LABEL: {{^}}rsq_rcp_pat_f64: |
| ; SI-UNSAFE: v_rsq_f64_e32 |
| ; SI-SAFE-NOT: v_rsq_f64_e32 |
| ; SI-SAFE: v_sqrt_f64 |
| ; SI-SAFE: v_rcp_f64 |
| define void @rsq_rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind { |
| %sqrt = call double @llvm.sqrt.f64(double %src) nounwind readnone |
| %rcp = call double @llvm.AMDGPU.rcp.f64(double %sqrt) nounwind readnone |
| store double %rcp, double addrspace(1)* %out, align 8 |
| ret void |
| } |