1 ; RUN: llc -march=r600 -mcpu=SI -verify-machineinstrs < %s | FileCheck -check-prefix=SI -check-prefix=FUNC %s
3 declare double @llvm.AMDGPU.rcp.f64(double) nounwind readnone
4 declare double @llvm.sqrt.f64(double) nounwind readnone
8 define void @rcp_f64(double addrspace(1)* %out, double %src) nounwind {
9 %rcp = call double @llvm.AMDGPU.rcp.f64(double %src) nounwind readnone
10 store double %rcp, double addrspace(1)* %out, align 8
14 ; FUNC-LABEL: @rcp_pat_f64
16 define void @rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind {
17 %rcp = fdiv double 1.0, %src
18 store double %rcp, double addrspace(1)* %out, align 8
22 ; FUNC-LABEL: @rsq_rcp_pat_f64
23 ; SI-UNSAFE: V_RSQ_F64_e32
24 ; SI-SAFE-NOT: V_RSQ_F64_e32
25 define void @rsq_rcp_pat_f64(double addrspace(1)* %out, double %src) nounwind {
26 %sqrt = call double @llvm.sqrt.f64(double %src) nounwind readnone
27 %rcp = call double @llvm.AMDGPU.rcp.f64(double %sqrt) nounwind readnone
28 store double %rcp, double addrspace(1)* %out, align 8