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 12 define void @test(i32 addrspace(1)* %out) { 13 entry: 14 %0 = alloca [32 x i32] 15 br label %loop.header 16 17 loop.header: 18 %counter = phi i32 [0, %entry], [%inc, %loop.inc] 19 br label %loop.body 20 21 loop.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 26 loop.inc: 27 %inc = add i32 %counter, 1 28 %1 = icmp sge i32 %counter, 32 29 br i1 %1, label %exit, label %loop.header 30 31 exit: 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
