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; RUN: opt -mtriple=amdgcn-- -loop-unroll -simplifycfg -sroa %s -S -o - | FileCheck %s
; RUN: opt -mtriple=r600-- -loop-unroll -simplifycfg -sroa %s -S -o - | FileCheck %s
; This test contains a simple loop that initializes an array declared in
; private memory. We want to make sure these kinds of loops are always
; unrolled, because private memory is slow.
; CHECK-LABEL: @test
; CHECK-NOT: alloca
; CHECK: store i32 5, i32 addrspace(1)* %out
define void @test(i32 addrspace(1)* %out) {
entry:
%0 = alloca [32 x i32]
br label %loop.header
loop.header:
%counter = phi i32 [0, %entry], [%inc, %loop.inc]
br label %loop.body
loop.body:
%ptr = getelementptr [32 x i32], [32 x i32]* %0, i32 0, i32 %counter
store i32 %counter, i32* %ptr
br label %loop.inc
loop.inc:
%inc = add i32 %counter, 1
%1 = icmp sge i32 %counter, 32
br i1 %1, label %exit, label %loop.header
exit:
%2 = getelementptr [32 x i32], [32 x i32]* %0, i32 0, i32 5
%3 = load i32, i32* %2
store i32 %3, i32 addrspace(1)* %out
ret void
}
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