| ; RUN: llc -mtriple=amdgcn-amd-amdhsa < %s | FileCheck -check-prefix=GCN %s |
| |
| ; GCN-LABEL: {{^}}select_undef_lhs: |
| ; GCN: s_waitcnt |
| ; GCN-NOT: v_cmp |
| ; GCN-NOT: v_cndmask |
| ; GCN-NEXT: s_setpc_b64 |
| define float @select_undef_lhs(float %val, i1 %cond) { |
| %undef = call float @llvm.amdgcn.rcp.f32(float undef) |
| %sel = select i1 %cond, float %undef, float %val |
| ret float %sel |
| } |
| |
| ; GCN-LABEL: {{^}}select_undef_rhs: |
| ; GCN: s_waitcnt |
| ; GCN-NOT: v_cmp |
| ; GCN-NOT: v_cndmask |
| ; GCN-NEXT: s_setpc_b64 |
| define float @select_undef_rhs(float %val, i1 %cond) { |
| %undef = call float @llvm.amdgcn.rcp.f32(float undef) |
| %sel = select i1 %cond, float %val, float %undef |
| ret float %sel |
| } |
| |
| ; GCN-LABEL: {{^}}select_undef_n1: |
| ; GCN: v_mov_b32_e32 [[RES:v[0-9]+]], 1.0 |
| ; GCN: store_dword {{[^,]+}}, [[RES]] |
| define void @select_undef_n1(float addrspace(1)* %a, i32 %c) { |
| %cc = icmp eq i32 %c, 0 |
| %sel = select i1 %cc, float 1.000000e+00, float undef |
| store float %sel, float addrspace(1)* %a |
| ret void |
| } |
| |
| ; GCN-LABEL: {{^}}select_undef_n2: |
| ; GCN: v_mov_b32_e32 [[RES:v[0-9]+]], 1.0 |
| ; GCN: store_dword {{[^,]+}}, [[RES]] |
| define void @select_undef_n2(float addrspace(1)* %a, i32 %c) { |
| %cc = icmp eq i32 %c, 0 |
| %sel = select i1 %cc, float undef, float 1.000000e+00 |
| store float %sel, float addrspace(1)* %a |
| ret void |
| } |
| |
| declare float @llvm.amdgcn.rcp.f32(float) |