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 ; RUN: llc -march=amdgcn -mcpu=gfx1100 -verify-machineinstrs < %s | FileCheck %s
5 ; On gfx6 and gfx7, this test shows a bug in SelectionDAG where scalarizing the
6 ; extension of a vector of f16 generates an illegal node that errors later.
8 ; CHECK-LABEL: {{^}}main:
11 define amdgpu_gs void @main(i32 inreg %arg) local_unnamed_addr #0 {
13 %tmp = load volatile float, ptr addrspace(1) undef
14 %tmp1 = bitcast float %tmp to i32
15 %im0.i = lshr i32 %tmp1, 16
16 %tmp2 = insertelement <2 x i32> undef, i32 %im0.i, i32 1
17 %tmp3 = trunc <2 x i32> %tmp2 to <2 x i16>
18 %tmp4 = bitcast <2 x i16> %tmp3 to <2 x half>
19 %tmp5 = fpext <2 x half> %tmp4 to <2 x float>
20 %bc = bitcast <2 x float> %tmp5 to <2 x i32>
21 %tmp6 = extractelement <2 x i32> %bc, i32 1
22 store volatile i32 %tmp6, ptr addrspace(1) undef
26 attributes #0 = { nounwind }