1; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s  -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=GFX9 -check-prefix=GCN %s
2; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=fiji < %s  -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=CIVI -check-prefix=GCN %s
3; RUN: opt -mtriple=amdgcn-amd-amdhsa -mcpu=hawaii < %s  -loop-vectorize -dce -instcombine -S | FileCheck -check-prefix=CIVI -check-prefix=GCN %s
4
5; GCN-LABEL: @vectorize_v2f16_loop(
6; GFX9: vector.body:
7; GFX9: phi <2 x half>
8; GFX9: load <2 x half>
9; GFX9: fadd fast <2 x half>
10
11; GFX9: middle.block:
12; GFX9: fadd fast <2 x half>
13
14; VI: phi half
15; VI: phi load half
16; VI: fadd fast half
17define half @vectorize_v2f16_loop(half addrspace(1)* noalias %s) {
18entry:
19  br label %for.body
20
21for.body:
22  %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]
23  %q.04 = phi half [ 0.0, %entry ], [ %add, %for.body ]
24  %arrayidx = getelementptr inbounds half, half addrspace(1)* %s, i64 %indvars.iv
25  %0 = load half, half addrspace(1)* %arrayidx, align 2
26  %add = fadd fast half %q.04, %0
27  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
28  %exitcond = icmp eq i64 %indvars.iv.next, 256
29  br i1 %exitcond, label %for.end, label %for.body
30
31for.end:
32  %add.lcssa = phi half [ %add, %for.body ]
33  ret half %add.lcssa
34}
35