| ; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m3 -o - | FileCheck %s |
| ; RUN: llc -mtriple=thumbv7m-none-eabi %s -mcpu=cortex-m4 -o - | FileCheck %s |
| ; RUN: llc -mtriple=thumbv8m-none-eabi %s -mcpu=cortex-m33 -o - | FileCheck %s |
| |
| define void @test_loop_alignment(ptr %in, ptr %out) optsize { |
| ; CHECK-LABEL: test_loop_alignment: |
| ; CHECK: mov{{.*}}, #0 |
| ; CHECK: .p2align 2 |
| |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] |
| %in.addr = getelementptr inbounds i32, ptr %in, i32 %i |
| %lhs = load i32, ptr %in.addr, align 4 |
| %res = mul nsw i32 %lhs, 5 |
| %out.addr = getelementptr inbounds i32, ptr %out, i32 %i |
| store i32 %res, ptr %out.addr, align 4 |
| %i.next = add i32 %i, 1 |
| %done = icmp eq i32 %i.next, 1024 |
| br i1 %done, label %end, label %loop |
| |
| end: |
| ret void |
| } |
| |
| define void @test_loop_alignment_minsize(ptr %in, ptr %out) minsize { |
| ; CHECK-LABEL: test_loop_alignment_minsize: |
| ; CHECK: movs {{r[0-9]+}}, #0 |
| ; CHECK-NOT: .p2align |
| |
| entry: |
| br label %loop |
| |
| loop: |
| %i = phi i32 [ 0, %entry ], [ %i.next, %loop ] |
| %in.addr = getelementptr inbounds i32, ptr %in, i32 %i |
| %lhs = load i32, ptr %in.addr, align 4 |
| %res = mul nsw i32 %lhs, 5 |
| %out.addr = getelementptr inbounds i32, ptr %out, i32 %i |
| store i32 %res, ptr %out.addr, align 4 |
| %i.next = add i32 %i, 1 |
| %done = icmp eq i32 %i.next, 1024 |
| br i1 %done, label %end, label %loop |
| |
| end: |
| ret void |
| } |