1 ; RUN: llc < %s -march=amdgcn -mcpu=SI -verify-machineinstrs | FileCheck %s 2 ; RUN: llc < %s -march=amdgcn -mcpu=tonga -verify-machineinstrs | FileCheck %s 3 4 @lds = external addrspace(3) global [64 x float] 5 6 ; CHECK-LABEL: {{^}}main: 7 ; CHECK-NOT: v_readlane_b32 m0 8 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" { 9 main_body: 10 %4 = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) 11 %cmp = fcmp ueq float 0.0, %4 12 br i1 %cmp, label %if, label %else 13 14 if: 15 %lds_ptr = getelementptr [64 x float], [64 x float] addrspace(3)* @lds, i32 0, i32 0 16 %lds_data = load float, float addrspace(3)* %lds_ptr 17 br label %endif 18 19 else: 20 %interp = call float @llvm.SI.fs.constant(i32 0, i32 0, i32 %3) 21 br label %endif 22 23 endif: 24 %export = phi float [%lds_data, %if], [%interp, %else] 25 %5 = call i32 @llvm.SI.packf16(float %export, float %export) 26 %6 = bitcast i32 %5 to float 27 call void @llvm.SI.export(i32 15, i32 1, i32 1, i32 0, i32 1, float %6, float %6, float %6, float %6) 28 ret void 29 } 30 31 declare float @llvm.SI.fs.constant(i32, i32, i32) readnone 32 33 declare i32 @llvm.SI.packf16(float, float) readnone 34 35 declare void @llvm.SI.export(i32, i32, i32, i32, i32, float, float, float, float) 36
