1; RUN: llc < %s -mtriple=thumbv7-apple-darwin -arm-atomic-cfg-tidy=0 -mcpu=cortex-a8 -relocation-model=pic -frame-pointer=all | FileCheck %s
2; rdar://7352504
3; Make sure we use "str r9, [sp, #+28]" instead of "sub.w r4, r7, #256" followed by "str r9, [r4, #-32]".
4
5%0 = type { i16, i8, i8 }
6%1 = type { [2 x i32], [2 x i32] }
7%2 = type { %union.rec* }
8%struct.FILE_POS = type { i8, i8, i16, i32 }
9%struct.GAP = type { i8, i8, i16 }
10%struct.LIST = type { %union.rec*, %union.rec* }
11%struct.STYLE = type { %union.anon, %union.anon, i16, i16, i32 }
12%struct.head_type = type { [2 x %struct.LIST], %union.FIRST_UNION, %union.SECOND_UNION, %union.THIRD_UNION, %union.FOURTH_UNION, %union.rec*, %2, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, %union.rec*, i32 }
13%union.FIRST_UNION = type { %struct.FILE_POS }
14%union.FOURTH_UNION = type { %struct.STYLE }
15%union.SECOND_UNION = type { %0 }
16%union.THIRD_UNION = type { %1 }
17%union.anon = type { %struct.GAP }
18%union.rec = type { %struct.head_type }
19
20@zz_hold = external global %union.rec*            ; <%union.rec**> [#uses=2]
21@zz_res = external global %union.rec*             ; <%union.rec**> [#uses=1]
22
23define %union.rec* @Manifest(%union.rec* %x, %union.rec* %env, %struct.STYLE* %style, %union.rec** %bthr, %union.rec** %fthr, %union.rec** %target, %union.rec** %crs, i32 %ok, i32 %need_expand, %union.rec** %enclose, i32 %fcr) nounwind {
24entry:
25; CHECK:       ldr{{(.w)?}}	{{(r[0-9]+)|(lr)}}, [r7, #28]
26  %xgaps.i = alloca [32 x %union.rec*], align 4   ; <[32 x %union.rec*]*> [#uses=0]
27  %ycomp.i = alloca [32 x %union.rec*], align 4   ; <[32 x %union.rec*]*> [#uses=0]
28  br label %bb20
29
30bb20:                                             ; preds = %entry
31  switch i32 undef, label %bb1287 [
32    i32 110, label %bb119
33    i32 120, label %bb119
34    i32 210, label %bb420
35    i32 230, label %bb420
36    i32 450, label %bb438
37    i32 460, label %bb438
38    i32 550, label %bb533
39    i32 560, label %bb569
40    i32 640, label %bb745
41    i32 780, label %bb1098
42  ]
43
44bb119:                                            ; preds = %bb20, %bb20
45  unreachable
46
47bb420:                                            ; preds = %bb20, %bb20
48; CHECK: bb420
49; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
50; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
51; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
52; CHECK: str{{(.w)?}} r{{[0-9]+}}, [sp
53  store volatile %union.rec* null, %union.rec** @zz_hold, align 4
54  store %union.rec* null, %union.rec** @zz_res, align 4
55  store volatile %union.rec* %x, %union.rec** @zz_hold, align 4
56  %0 = call  %union.rec* @Manifest(%union.rec* undef, %union.rec* %env, %struct.STYLE* %style, %union.rec** %bthr, %union.rec** %fthr, %union.rec** %target, %union.rec** %crs, i32 %ok, i32 %need_expand, %union.rec** %enclose, i32 %fcr) nounwind ; <%union.rec*> [#uses=0]
57  unreachable
58
59bb438:                                            ; preds = %bb20, %bb20
60  unreachable
61
62bb533:                                            ; preds = %bb20
63  ret %union.rec* %x
64
65bb569:                                            ; preds = %bb20
66  unreachable
67
68bb745:                                            ; preds = %bb20
69  unreachable
70
71bb1098:                                           ; preds = %bb20
72  unreachable
73
74bb1287:                                           ; preds = %bb20
75  unreachable
76}
77