1 ; RUN: opt -loop-unroll -simplifycfg -sroa %s -S -o - | FileCheck %s 2 3 target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-v16:16:16-v24:32:32-v32:32:32-v48:64:64-v64:64:64-v96:128:128-v128:128:128-v192:256:256-v256:256:256-v512:512:512-v1024:1024:1024-v2048:2048:2048-n32:64" 4 target triple = "r600--" 5 6 ; This test contains a simple loop that initializes an array declared in 7 ; private memory. We want to make sure these kinds of loops are always 8 ; unrolled, because private memory is slow. 9 10 ; CHECK-LABEL: @test 11 ; CHECK-NOT: alloca 12 ; CHECK: store i32 5, i32 addrspace(1)* %out 13 define void @test(i32 addrspace(1)* %out) { 14 entry: 15 %0 = alloca [32 x i32] 16 br label %loop.header 17 18 loop.header: 19 %counter = phi i32 [0, %entry], [%inc, %loop.inc] 20 br label %loop.body 21 22 loop.body: 23 %ptr = getelementptr [32 x i32]* %0, i32 0, i32 %counter 24 store i32 %counter, i32* %ptr 25 br label %loop.inc 26 27 loop.inc: 28 %inc = add i32 %counter, 1 29 %1 = icmp sge i32 %counter, 32 30 br i1 %1, label %exit, label %loop.header 31 32 exit: 33 %2 = getelementptr [32 x i32]* %0, i32 0, i32 5 34 %3 = load i32* %2 35 store i32 %3, i32 addrspace(1)* %out 36 ret void 37 } 38
