1; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m3 -o - | FileCheck %s 2; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m4 -o - | FileCheck %s 3; RUN: llc -mtriple=thumbv8m-none-eabi %s -mcpu=cortex-m33 -o - | FileCheck %s 4 5define void @test_loop_alignment(ptr %in, ptr %out) optsize { 6; CHECK-LABEL: test_loop_alignment: 7; CHECK: mov{{.*}}, #0 8; CHECK: .p2align 2 9 10entry: 11 br label %loop 12 13loop: 14 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] 15 %in.addr = getelementptr inbounds i32, ptr %in, i32 %i 16 %lhs = load i32, ptr %in.addr, align 4 17 %res = mul nsw i32 %lhs, 5 18 %out.addr = getelementptr inbounds i32, ptr %out, i32 %i 19 store i32 %res, ptr %out.addr, align 4 20 %i.next = add i32 %i, 1 21 %done = icmp eq i32 %i.next, 1024 22 br i1 %done, label %end, label %loop 23 24end: 25 ret void 26} 27 28define void @test_loop_alignment_minsize(ptr %in, ptr %out) minsize { 29; CHECK-LABEL: test_loop_alignment_minsize: 30; CHECK: movs {{r[0-9]+}}, #0 31; CHECK-NOT: .p2align 32 33entry: 34 br label %loop 35 36loop: 37 %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] 38 %in.addr = getelementptr inbounds i32, ptr %in, i32 %i 39 %lhs = load i32, ptr %in.addr, align 4 40 %res = mul nsw i32 %lhs, 5 41 %out.addr = getelementptr inbounds i32, ptr %out, i32 %i 42 store i32 %res, ptr %out.addr, align 4 43 %i.next = add i32 %i, 1 44 %done = icmp eq i32 %i.next, 1024 45 br i1 %done, label %end, label %loop 46 47end: 48 ret void 49} 50