1; RUN: llc -march=amdgcn -mcpu=gfx600 -verify-machineinstrs < %s | FileCheck %s
2; RUN: llc -march=amdgcn -mcpu=gfx700 -verify-machineinstrs < %s | FileCheck %s
3
4; On gfx6 and gfx7, this test shows a bug in SelectionDAG where scalarizing the
5; extension of a vector of f16 generates an illegal node that errors later.
6
7; CHECK-LABEL: {{^}}main:
8; CHECK: v_cvt_f32_f16
9
10define amdgpu_gs void @main(i32 inreg %arg) local_unnamed_addr #0 {
11.entry:
12  %tmp = load volatile float, float addrspace(1)* undef
13  %tmp1 = bitcast float %tmp to i32
14  %im0.i = lshr i32 %tmp1, 16
15  %tmp2 = insertelement <2 x i32> undef, i32 %im0.i, i32 1
16  %tmp3 = trunc <2 x i32> %tmp2 to <2 x i16>
17  %tmp4 = bitcast <2 x i16> %tmp3 to <2 x half>
18  %tmp5 = fpext <2 x half> %tmp4 to <2 x float>
19  %bc = bitcast <2 x float> %tmp5 to <2 x i32>
20  %tmp6 = extractelement <2 x i32> %bc, i32 1
21  store volatile i32 %tmp6, i32 addrspace(1)* undef
22  ret void
23}
24
25attributes #0 = { nounwind }
26
27