1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
; RUN: llc -mtriple=amdgcn -mcpu=gfx600 -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx700 -verify-machineinstrs < %s | FileCheck %s
; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -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, ptr addrspace(1) poison
%tmp1 = bitcast float %tmp to i32
%im0.i = lshr i32 %tmp1, 16
%tmp2 = insertelement <2 x i32> poison, 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, ptr addrspace(1) poison
ret void
}
attributes #0 = { nounwind }
|
