| Tom Stellard | bdd567d8 | 2014-11-14 20:43:26 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -march=r600 -mcpu=SI -verify-machineinstrs | FileCheck %s |
| 2 | |
| 3 | @lds = external addrspace(3) global [64 x float] |
| 4 | |
| 5 | ; CHECK-LABEL: {{^}}main: |
| 6 | ; CHECK-NOT: v_readlane_b32 m0 |
| 7 | 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" { |
| 8 | main_body: |
| 9 | %4 = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) |
| 10 | %cmp = fcmp ueq float 0.0, %4 |
| 11 | br i1 %cmp, label %if, label %else |
| 12 | |
| 13 | if: |
| 14 | %lds_ptr = getelementptr [64 x float] addrspace(3)* @lds, i32 0, i32 0 |
| 15 | %lds_data = load float addrspace(3)* %lds_ptr |
| 16 | br label %endif |
| 17 | |
| 18 | else: |
| 19 | %interp = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) |
| 20 | br label %endif |
| 21 | |
| 22 | endif: |
| 23 | %export = phi float [%lds_data, %if], [%interp, %else] |
| 24 | %5 = call i32 @llvm.SI.packf16(float %export, float %export) |
| 25 | %6 = bitcast i32 %5 to float |
| 26 | call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %6, float %6, float %6, float %6) |
| 27 | ret void |
| 28 | } |
| 29 | |
| 30 | declare float @llvm.SI.fs.constant(i32, i32, i32) readnone |
| 31 | |
| 32 | declare i32 @llvm.SI.packf16(float, float) readnone |
| 33 | |
| 34 | declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float) |