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comparison test/CodeGen/X86/coalesce-implicitdef.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children afa8332a0e37
comparison
equal deleted inserted replaced
-1:000000000000 0:95c75e76d11b
1 ; RUN: llc < %s -verify-coalescing
2 ; PR14732
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4 target triple = "x86_64-apple-macosx10"
5
6 @c = common global i32 0, align 4
7 @b = common global i32 0, align 4
8 @a = common global i32 0, align 4
9 @d = common global i32 0, align 4
10
11 ; This function creates an IMPLICIT_DEF with a long live range, even after
12 ; ProcessImplicitDefs.
13 ;
14 ; The coalescer should be able to deal with all kinds of IMPLICIT_DEF live
15 ; ranges, even if they are not common.
16
17 define void @f() nounwind uwtable ssp {
18 entry:
19 %i = alloca i32, align 4
20 br label %for.cond
21
22 for.cond: ; preds = %for.inc34, %entry
23 %i.0.load44 = phi i32 [ %inc35, %for.inc34 ], [ undef, %entry ]
24 %pi.0 = phi i32* [ %pi.4, %for.inc34 ], [ undef, %entry ]
25 %tobool = icmp eq i32 %i.0.load44, 0
26 br i1 %tobool, label %for.end36, label %for.body
27
28 for.body: ; preds = %for.cond
29 store i32 0, i32* @c, align 4
30 br label %for.body2
31
32 for.body2: ; preds = %for.body, %for.inc
33 %i.0.load45 = phi i32 [ %i.0.load44, %for.body ], [ 0, %for.inc ]
34 %tobool3 = icmp eq i32 %i.0.load45, 0
35 br i1 %tobool3, label %if.then10, label %if.then
36
37 if.then: ; preds = %for.body2
38 store i32 0, i32* %i, align 4
39 br label %for.body6
40
41 for.body6: ; preds = %if.then, %for.body6
42 store i32 0, i32* %i, align 4
43 br i1 true, label %for.body6, label %for.inc
44
45 if.then10: ; preds = %for.body2
46 store i32 1, i32* @b, align 4
47 ret void
48
49 for.inc: ; preds = %for.body6
50 br i1 undef, label %for.body2, label %if.end30
51
52 while.condthread-pre-split: ; preds = %label.loopexit, %while.condthread-pre-split.lr.ph.lr.ph, %for.inc27.backedge
53 %0 = phi i32 [ %inc28, %for.inc27.backedge ], [ %inc285863, %while.condthread-pre-split.lr.ph.lr.ph ], [ %inc2858, %label.loopexit ]
54 %inc2060 = phi i32 [ %inc20, %for.inc27.backedge ], [ %a.promoted.pre, %while.condthread-pre-split.lr.ph.lr.ph ], [ %inc20, %label.loopexit ]
55 br label %while.cond
56
57 while.cond: ; preds = %while.condthread-pre-split, %while.cond
58 %p2.1.in = phi i32* [ %pi.3.ph, %while.cond ], [ %i, %while.condthread-pre-split ]
59 %p2.1 = bitcast i32* %p2.1.in to i16*
60 br i1 %tobool19, label %while.end, label %while.cond
61
62 while.end: ; preds = %while.cond
63 %inc20 = add nsw i32 %inc2060, 1
64 %tobool21 = icmp eq i32 %inc2060, 0
65 br i1 %tobool21, label %for.inc27.backedge, label %if.then22
66
67 for.inc27.backedge: ; preds = %while.end, %if.then22
68 %inc28 = add nsw i32 %0, 1
69 store i32 %inc28, i32* @b, align 4
70 %tobool17 = icmp eq i32 %inc28, 0
71 br i1 %tobool17, label %for.inc27.if.end30.loopexit56_crit_edge, label %while.condthread-pre-split
72
73 if.then22: ; preds = %while.end
74 %1 = load i16* %p2.1, align 2
75 %tobool23 = icmp eq i16 %1, 0
76 br i1 %tobool23, label %for.inc27.backedge, label %label.loopexit
77
78 label.loopexit: ; preds = %if.then22
79 store i32 %inc20, i32* @a, align 4
80 %inc2858 = add nsw i32 %0, 1
81 store i32 %inc2858, i32* @b, align 4
82 %tobool1759 = icmp eq i32 %inc2858, 0
83 br i1 %tobool1759, label %if.end30, label %while.condthread-pre-split
84
85 for.inc27.if.end30.loopexit56_crit_edge: ; preds = %for.inc27.backedge
86 store i32 %inc20, i32* @a, align 4
87 br label %if.end30
88
89 if.end30: ; preds = %for.inc27.if.end30.loopexit56_crit_edge, %label.loopexit, %label.preheader, %for.inc
90 %i.0.load46 = phi i32 [ 0, %for.inc ], [ %i.0.load4669, %label.preheader ], [ %i.0.load4669, %label.loopexit ], [ %i.0.load4669, %for.inc27.if.end30.loopexit56_crit_edge ]
91 %pi.4 = phi i32* [ %i, %for.inc ], [ %pi.3.ph, %label.preheader ], [ %pi.3.ph, %label.loopexit ], [ %pi.3.ph, %for.inc27.if.end30.loopexit56_crit_edge ]
92 %2 = load i32* %pi.4, align 4
93 %tobool31 = icmp eq i32 %2, 0
94 br i1 %tobool31, label %for.inc34, label %label.preheader
95
96 for.inc34: ; preds = %if.end30
97 %inc35 = add nsw i32 %i.0.load46, 1
98 store i32 %inc35, i32* %i, align 4
99 br label %for.cond
100
101 for.end36: ; preds = %for.cond
102 store i32 1, i32* %i, align 4
103 %3 = load i32* @c, align 4
104 %tobool37 = icmp eq i32 %3, 0
105 br i1 %tobool37, label %label.preheader, label %land.rhs
106
107 land.rhs: ; preds = %for.end36
108 store i32 0, i32* @a, align 4
109 br label %label.preheader
110
111 label.preheader: ; preds = %for.end36, %if.end30, %land.rhs
112 %i.0.load4669 = phi i32 [ 1, %land.rhs ], [ %i.0.load46, %if.end30 ], [ 1, %for.end36 ]
113 %pi.3.ph = phi i32* [ %pi.0, %land.rhs ], [ %pi.4, %if.end30 ], [ %pi.0, %for.end36 ]
114 %4 = load i32* @b, align 4
115 %inc285863 = add nsw i32 %4, 1
116 store i32 %inc285863, i32* @b, align 4
117 %tobool175964 = icmp eq i32 %inc285863, 0
118 br i1 %tobool175964, label %if.end30, label %while.condthread-pre-split.lr.ph.lr.ph
119
120 while.condthread-pre-split.lr.ph.lr.ph: ; preds = %label.preheader
121 %.pr50 = load i32* @d, align 4
122 %tobool19 = icmp eq i32 %.pr50, 0
123 %a.promoted.pre = load i32* @a, align 4
124 br label %while.condthread-pre-split
125 }