| ; RUN: llc < %s | FileCheck %s |
| |
| target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64" |
| target triple = "thumbv5e-none-linux-gnueabi" |
| |
| ; Function Attrs: norecurse nounwind optsize |
| define void @f(i32,i32,i32,i32,ptr %x4p, ptr %x5p, ptr %x6p) { |
| if.end: |
| br label %while.body |
| |
| while.body: |
| %ll.0100 = phi i64 [ 0, %if.end ], [ %shr32, %while.body ] |
| %add = add nuw nsw i64 %ll.0100, 0 |
| %add3 = add nuw nsw i64 %add, 0 |
| %shr = lshr i64 %add3, 32 |
| %conv7 = zext i32 %0 to i64 |
| %conv9 = zext i32 %1 to i64 |
| %add10 = add nuw nsw i64 %conv9, %conv7 |
| %add11 = add nuw nsw i64 %add10, %shr |
| %shr14 = lshr i64 %add11, 32 |
| %conv16 = zext i32 %2 to i64 |
| %conv18 = zext i32 %3 to i64 |
| %add19 = add nuw nsw i64 %conv18, %conv16 |
| %add20 = add nuw nsw i64 %add19, %shr14 |
| %conv21 = trunc i64 %add20 to i32 |
| store i32 %conv21, ptr %x6p, align 4 |
| %shr23 = lshr i64 %add20, 32 |
| %x4 = load i32, ptr %x4p, align 4 |
| %conv25 = zext i32 %x4 to i64 |
| %x5 = load i32, ptr %x5p, align 4 |
| %conv27 = zext i32 %x5 to i64 |
| %add28 = add nuw nsw i64 %conv27, %conv25 |
| %add29 = add nuw nsw i64 %add28, %shr23 |
| %shr32 = lshr i64 %add29, 32 |
| br label %while.body |
| } |
| ; CHECK: adds r3, r0, r1 |
| ; CHECK: push {r5} |
| ; CHECK: pop {r1} |
| ; CHECK: adcs r1, r5 |
| ; CHECK: ldr r0, [sp, #12] @ 4-byte Reload |
| ; CHECK: ldr r2, [sp, #8] @ 4-byte Reload |
| ; CHECK: adds r2, r0, r2 |
| ; CHECK: push {r5} |
| ; CHECK: pop {r4} |
| ; CHECK: adcs r4, r5 |
| ; CHECK: adds r0, r2, r5 |
| ; CHECK: push {r3} |
| ; CHECK: pop {r0} |
| ; CHECK: adcs r0, r4 |
| ; CHECK: ldr r6, [sp, #4] @ 4-byte Reload |
| ; CHECK: str r0, [r6] |
| ; CHECK: ldr r0, [r7] |
| ; CHECK: ldr r6, [sp] @ 4-byte Reload |
| ; CHECK: ldr r6, [r6] |
| ; CHECK: adds r0, r6, r0 |