1; RUN: opt -mtriple=amdgcn-- -loop-unroll -simplifycfg -sroa %s -S -o - | FileCheck %s
2; RUN: opt -mtriple=r600-- -loop-unroll -simplifycfg -sroa %s -S -o - | FileCheck %s
3
4
5; This test contains a simple loop that initializes an array declared in
6; private memory.  We want to make sure these kinds of loops are always
7; unrolled, because private memory is slow.
8
9; CHECK-LABEL: @test
10; CHECK-NOT: alloca
11; CHECK: store i32 5, i32 addrspace(1)* %out
12define void @test(i32 addrspace(1)* %out) {
13entry:
14  %0 = alloca [32 x i32]
15  br label %loop.header
16
17loop.header:
18  %counter = phi i32 [0, %entry], [%inc, %loop.inc]
19  br label %loop.body
20
21loop.body:
22  %ptr = getelementptr [32 x i32], [32 x i32]* %0, i32 0, i32 %counter
23  store i32 %counter, i32* %ptr
24  br label %loop.inc
25
26loop.inc:
27  %inc = add i32 %counter, 1
28  %1 = icmp sge i32 %counter, 32
29  br i1 %1, label  %exit, label %loop.header
30
31exit:
32  %2 = getelementptr [32 x i32], [32 x i32]* %0, i32 0, i32 5
33  %3 = load i32, i32* %2
34  store i32 %3, i32 addrspace(1)* %out
35  ret void
36}
37