| ; RUN: llc -march=amdgcn -mcpu=gfx600 -verify-machineinstrs < %s | FileCheck %s | |
| ; RUN: llc -march=amdgcn -mcpu=gfx700 -verify-machineinstrs < %s | FileCheck %s | |
| ; On gfx6 and gfx7, this test shows a bug in SelectionDAG where scalarizing the | |
| ; extension of a vector of f16 generates an illegal node that errors later. | |
| ; CHECK-LABEL: {{^}}main: | |
| ; CHECK: v_cvt_f32_f16 | |
| define amdgpu_gs void @main(i32 inreg %arg) local_unnamed_addr #0 { | |
| .entry: | |
| %tmp = load volatile float, float addrspace(1)* undef | |
| %tmp1 = bitcast float %tmp to i32 | |
| %im0.i = lshr i32 %tmp1, 16 | |
| %tmp2 = insertelement <2 x i32> undef, i32 %im0.i, i32 1 | |
| %tmp3 = trunc <2 x i32> %tmp2 to <2 x i16> | |
| %tmp4 = bitcast <2 x i16> %tmp3 to <2 x half> | |
| %tmp5 = fpext <2 x half> %tmp4 to <2 x float> | |
| %bc = bitcast <2 x float> %tmp5 to <2 x i32> | |
| %tmp6 = extractelement <2 x i32> %bc, i32 1 | |
| store volatile i32 %tmp6, i32 addrspace(1)* undef | |
| ret void | |
| } | |
| attributes #0 = { nounwind } | |