1; RUN: llc < %s | FileCheck %s
2
3target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
4target triple = "thumbv5e-none-linux-gnueabi"
5
6; Function Attrs: norecurse nounwind optsize
7define void @f(i32,i32,i32,i32,i32* %x4p, i32* %x5p, i32* %x6p) {
8if.end:
9  br label %while.body
10
11while.body:
12  %ll.0100 = phi i64 [ 0, %if.end ], [ %shr32, %while.body ]
13  %add = add nuw nsw i64 %ll.0100, 0
14  %add3 = add nuw nsw i64 %add, 0
15  %shr = lshr i64 %add3, 32
16  %conv7 = zext i32 %0 to i64
17  %conv9 = zext i32 %1 to i64
18  %add10 = add nuw nsw i64 %conv9, %conv7
19  %add11 = add nuw nsw i64 %add10, %shr
20  %shr14 = lshr i64 %add11, 32
21  %conv16 = zext i32 %2 to i64
22  %conv18 = zext i32 %3 to i64
23  %add19 = add nuw nsw i64 %conv18, %conv16
24  %add20 = add nuw nsw i64 %add19, %shr14
25  %conv21 = trunc i64 %add20 to i32
26  store i32 %conv21, i32* %x6p, align 4
27  %shr23 = lshr i64 %add20, 32
28  %x4 = load i32, i32* %x4p, align 4
29  %conv25 = zext i32 %x4 to i64
30  %x5 = load i32, i32* %x5p, align 4
31  %conv27 = zext i32 %x5 to i64
32  %add28 = add nuw nsw i64 %conv27, %conv25
33  %add29 = add nuw nsw i64 %add28, %shr23
34  %shr32 = lshr i64 %add29, 32
35  br label %while.body
36}
37; CHECK: adds	r3, r0, r1
38; CHECK: push	{r5}
39; CHECK: pop	{r1}
40; CHECK: adcs	r1, r5
41; CHECK: ldr	r0, [sp, #12]           @ 4-byte Reload
42; CHECK: ldr	r2, [sp, #8]            @ 4-byte Reload
43; CHECK: adds	r2, r0, r2
44; CHECK: push	{r5}
45; CHECK: pop	{r4}
46; CHECK: adcs	r4, r5
47; CHECK: adds	r0, r2, r5
48; CHECK: push	{r3}
49; CHECK: pop	{r0}
50; CHECK: adcs	r0, r4
51; CHECK: ldr	r6, [sp, #4]            @ 4-byte Reload
52; CHECK: str	r0, [r6]
53; CHECK: ldr	r0, [r7]
54; CHECK: ldr	r6, [sp]                @ 4-byte Reload
55; CHECK: ldr	r6, [r6]
56; CHECK: adds	r0, r6, r0
57