1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes='unify-loop-exits' -S | FileCheck %s
define fastcc void @undef_phi(i64 %i5247, i1 %i4530, i1 %i4936.not) {
; CHECK-LABEL: define fastcc void @undef_phi(
; CHECK-SAME: i64 [[I5247:%.*]], i1 [[I4530:%.*]], i1 [[I4936_NOT:%.*]]) {
; CHECK-NEXT: [[BB:.*:]]
; CHECK-NEXT: br label %[[MBB3932:.*]]
; CHECK: [[MBB3932]]:
; CHECK-NEXT: br label %[[MBB4454:.*]]
; CHECK: [[MBB4321:.*]]:
; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[I5247]] to i32
; CHECK-NEXT: [[I5290:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT: br i1 [[I5290]], label %[[MBB3932]], label %[[LOOP_EXIT_GUARD:.*]]
; CHECK: [[MBB4454]]:
; CHECK-NEXT: br i1 [[I4530]], label %[[MBB4535:.*]], label %[[LOOP_EXIT_GUARD1:.*]]
; CHECK: [[MBB4531:.*]]:
; CHECK-NEXT: ret void
; CHECK: [[MBB4535]]:
; CHECK-NEXT: br i1 [[I4936_NOT]], label %[[LOOP_EXIT_GUARD1]], label %[[MBB4454]]
; CHECK: [[MBB5291:.*]]:
; CHECK-NEXT: [[I5293:%.*]] = insertvalue [2 x i32] zeroinitializer, i32 [[DOTMOVED:%.*]], 1
; CHECK-NEXT: store volatile [2 x i32] [[I5293]], ptr addrspace(5) null, align 4
; CHECK-NEXT: ret void
; CHECK: [[LOOP_EXIT_GUARD]]:
; CHECK-NEXT: [[DOTMOVED]] = phi i32 [ [[TMP0]], %[[MBB4321]] ], [ poison, %[[LOOP_EXIT_GUARD1]] ]
; CHECK-NEXT: [[GUARD_MBB4531:%.*]] = phi i1 [ false, %[[MBB4321]] ], [ [[GUARD_MBB4531_MOVED:%.*]], %[[LOOP_EXIT_GUARD1]] ]
; CHECK-NEXT: br i1 [[GUARD_MBB4531]], label %[[MBB4531]], label %[[MBB5291]]
; CHECK: [[LOOP_EXIT_GUARD1]]:
; CHECK-NEXT: [[GUARD_MBB4531_MOVED]] = phi i1 [ true, %[[MBB4454]] ], [ poison, %[[MBB4535]] ]
; CHECK-NEXT: [[GUARD_LOOP_EXIT_GUARD:%.*]] = phi i1 [ true, %[[MBB4454]] ], [ false, %[[MBB4535]] ]
; CHECK-NEXT: br i1 [[GUARD_LOOP_EXIT_GUARD]], label %[[LOOP_EXIT_GUARD]], label %[[MBB4321]]
;
mbb:
br label %mbb3932
mbb3932: ; preds = %mbb4321, %mbb
br label %mbb4454
mbb4321: ; preds = %mbb4535
%0 = trunc i64 %i5247 to i32
%i5290 = icmp eq i32 %0, 0
br i1 %i5290, label %mbb3932, label %mbb5291
mbb4454: ; preds = %mbb4535, %mbb3932
br i1 %i4530, label %mbb4535, label %mbb4531
mbb4531: ; preds = %mbb4454
ret void
mbb4535: ; preds = %mbb4454
br i1 %i4936.not, label %mbb4321, label %mbb4454
mbb5291: ; preds = %mbb4321
%i5293 = insertvalue [2 x i32] zeroinitializer, i32 %0, 1
store volatile [2 x i32] %i5293, ptr addrspace(5) null, align 4
ret void
}
define fastcc void @undef_phi_callbr(i64 %i5247, i1 %i4530, i1 %i4936.not) {
; CHECK-LABEL: define fastcc void @undef_phi_callbr(
; CHECK-SAME: i64 [[I5247:%.*]], i1 [[I4530:%.*]], i1 [[I4936_NOT:%.*]]) {
; CHECK-NEXT: [[MBB:.*:]]
; CHECK-NEXT: callbr void asm "", ""()
; CHECK-NEXT: to label %[[MBB3932:.*]] []
; CHECK: [[MBB3932]]:
; CHECK-NEXT: callbr void asm "", ""()
; CHECK-NEXT: to label %[[MBB4454:.*]] []
; CHECK: [[MBB4321:.*]]:
; CHECK-NEXT: [[TMP0:%.*]] = trunc i64 [[I5247]] to i32
; CHECK-NEXT: [[I5290:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT: callbr void asm "", "r,!i"(i1 [[I5290]])
; CHECK-NEXT: to label %[[MBB3932]] [label %mbb4321.target.mbb5291]
; CHECK: [[MBB4454]]:
; CHECK-NEXT: callbr void asm "", "r,!i"(i1 [[I4530]])
; CHECK-NEXT: to label %[[MBB4535:.*]] [label %mbb4454.target.mbb4454.target.mbb4531]
; CHECK: [[MBB4531:.*]]:
; CHECK-NEXT: ret void
; CHECK: [[MBB4535]]:
; CHECK-NEXT: callbr void asm "", "r,!i"(i1 [[I4936_NOT]])
; CHECK-NEXT: to label %[[MBB4535_TARGET_MBB4321:.*]] [label %mbb4454]
; CHECK: [[MBB5291:.*]]:
; CHECK-NEXT: [[I5293:%.*]] = insertvalue [2 x i32] zeroinitializer, i32 [[DOTMOVED:%.*]], 1
; CHECK-NEXT: store volatile [2 x i32] [[I5293]], ptr addrspace(5) null, align 4
; CHECK-NEXT: ret void
; CHECK: [[MBB4454_TARGET_MBB4531:.*]]:
; CHECK-NEXT: br label %[[LOOP_EXIT_GUARD:.*]]
; CHECK: [[MBB4321_TARGET_MBB5291:.*]]:
; CHECK-NEXT: br label %[[LOOP_EXIT_GUARD]]
; CHECK: [[LOOP_EXIT_GUARD]]:
; CHECK-NEXT: [[DOTMOVED]] = phi i32 [ poison, %[[MBB4454_TARGET_MBB4531]] ], [ [[TMP0]], %[[MBB4321_TARGET_MBB5291]] ]
; CHECK-NEXT: [[GUARD_MBB4531:%.*]] = phi i1 [ true, %[[MBB4454_TARGET_MBB4531]] ], [ false, %[[MBB4321_TARGET_MBB5291]] ]
; CHECK-NEXT: br i1 [[GUARD_MBB4531]], label %[[MBB4531]], label %[[MBB5291]]
; CHECK: [[MBB4454_TARGET_MBB4454_TARGET_MBB4531:.*]]:
; CHECK-NEXT: br label %[[LOOP_EXIT_GUARD1:.*]]
; CHECK: [[MBB4535_TARGET_MBB4321]]:
; CHECK-NEXT: br label %[[LOOP_EXIT_GUARD1]]
; CHECK: [[LOOP_EXIT_GUARD1]]:
; CHECK-NEXT: [[GUARD_MBB4454_TARGET_MBB4531:%.*]] = phi i1 [ true, %[[MBB4454_TARGET_MBB4454_TARGET_MBB4531]] ], [ false, %[[MBB4535_TARGET_MBB4321]] ]
; CHECK-NEXT: br i1 [[GUARD_MBB4454_TARGET_MBB4531]], label %[[MBB4454_TARGET_MBB4531]], label %[[MBB4321]]
;
mbb:
callbr void asm "", ""() to label %mbb3932 []
mbb3932: ; preds = %mbb4321, %mbb
callbr void asm "", ""() to label %mbb4454 []
mbb4321: ; preds = %mbb4535
%0 = trunc i64 %i5247 to i32
%i5290 = icmp eq i32 %0, 0
callbr void asm "", "r,!i"(i1 %i5290) to label %mbb3932 [label %mbb5291]
mbb4454: ; preds = %mbb4535, %mbb3932
callbr void asm "", "r,!i"(i1 %i4530) to label %mbb4535 [label %mbb4531]
mbb4531: ; preds = %mbb4454
ret void
mbb4535: ; preds = %mbb4454
callbr void asm "", "r,!i"(i1 %i4936.not) to label %mbb4321 [label %mbb4454]
mbb5291: ; preds = %mbb4321
%i5293 = insertvalue [2 x i32] zeroinitializer, i32 %0, 1
store volatile [2 x i32] %i5293, ptr addrspace(5) null, align 4
ret void
}
|
