| ; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s |
| ; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s |
| |
| @lds = external addrspace(3) global [64 x float] |
| |
| ; CHECK-LABEL: {{^}}main: |
| ; CHECK-NOT: v_readlane_b32 m0 |
| define void @main(<16 x i8> addrspace(2)* inreg, <16 x i8> addrspace(2)* inreg, <32 x i8> addrspace(2)* inreg, i32 inreg) "ShaderType"="0" { |
| main_body: |
| %4 = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) |
| %cmp = fcmp ueq float 0.0, %4 |
| br i1 %cmp, label %if, label %else |
| |
| if: |
| %lds_ptr = getelementptr [64 x float], [64 x float] addrspace(3)* @lds, i32 0, i32 0 |
| %lds_data = load float, float addrspace(3)* %lds_ptr |
| br label %endif |
| |
| else: |
| %interp = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) |
| br label %endif |
| |
| endif: |
| %export = phi float [%lds_data, %if], [%interp, %else] |
| %5 = call i32 @llvm.SI.packf16(float %export, float %export) |
| %6 = bitcast i32 %5 to float |
| call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %6, float %6, float %6, float %6) |
| ret void |
| } |
| |
| declare float @llvm.SI.fs.constant(i32, i32, i32) readnone |
| |
| declare i32 @llvm.SI.packf16(float, float) readnone |
| |
| declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float) |
