1 ; RUN: llc -march=amdgcn -verify-machineinstrs < %s | FileCheck -check-prefix=GCN %s
2 ; RUN: not llc -march=amdgcn -mcpu=fiji -verify-machineinstrs < %s 2>&1 | FileCheck -check-prefix=ERROR %s
4 ; ERROR: error: <unknown>:0:0: in function rcp_legacy_f32 void (float addrspace(1)*, float): intrinsic not supported on subtarget
6 declare float @llvm.amdgcn.rcp.legacy(float) #0
8 ; GCN-LABEL: {{^}}rcp_legacy_f32:
9 ; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, {{s[0-9]+}}
10 define amdgpu_kernel void @rcp_legacy_f32(float addrspace(1)* %out, float %src) #1 {
11 %rcp = call float @llvm.amdgcn.rcp.legacy(float %src) #0
12 store float %rcp, float addrspace(1)* %out, align 4
16 ; TODO: Really these should be constant folded
17 ; GCN-LABEL: {{^}}rcp_legacy_f32_constant_4.0
18 ; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, 4.0
19 define amdgpu_kernel void @rcp_legacy_f32_constant_4.0(float addrspace(1)* %out) #1 {
20 %rcp = call float @llvm.amdgcn.rcp.legacy(float 4.0) #0
21 store float %rcp, float addrspace(1)* %out, align 4
25 ; GCN-LABEL: {{^}}rcp_legacy_f32_constant_100.0
26 ; GCN: v_rcp_legacy_f32_e32 {{v[0-9]+}}, 0x42c80000
27 define amdgpu_kernel void @rcp_legacy_f32_constant_100.0(float addrspace(1)* %out) #1 {
28 %rcp = call float @llvm.amdgcn.rcp.legacy(float 100.0) #0
29 store float %rcp, float addrspace(1)* %out, align 4
33 ; GCN-LABEL: {{^}}rcp_legacy_undef_f32:
34 ; GCN-NOT: v_rcp_legacy_f32
35 define amdgpu_kernel void @rcp_legacy_undef_f32(float addrspace(1)* %out) #1 {
36 %rcp = call float @llvm.amdgcn.rcp.legacy(float undef)
37 store float %rcp, float addrspace(1)* %out, align 4
41 attributes #0 = { nounwind readnone }
42 attributes #1 = { nounwind }