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
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -indvars -S | FileCheck %s
define void @test1() nounwind {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ]
; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double
; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0
; CHECK-NEXT: [[DOTINT]] = add nuw nsw i32 [[IV_INT]], 1
; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 [[DOTINT]], 10000
; CHECK-NEXT: br i1 [[TMP1]], label [[BB]], label [[RETURN:%.*]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
br label %bb
bb: ; preds = %bb, %entry
%iv = phi double [ 0.000000e+00, %entry ], [ %1, %bb ]
%0 = tail call i32 @foo(double %iv) nounwind
%1 = fadd double %iv, 1.000000e+00
%2 = fcmp olt double %1, 1.000000e+04
br i1 %2, label %bb, label %return
return: ; preds = %bb
ret void
}
declare i32 @foo(double)
define void @test2() nounwind {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ -10, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ]
; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double
; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0
; CHECK-NEXT: [[DOTINT]] = add nsw i32 [[IV_INT]], 2
; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[DOTINT]], -1
; CHECK-NEXT: br i1 [[TMP1]], label [[BB]], label [[RETURN:%.*]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
br label %bb
bb: ; preds = %bb, %entry
%iv = phi double [ -10.000000e+00, %entry ], [ %1, %bb ]
%0 = tail call i32 @foo(double %iv) nounwind
%1 = fadd double %iv, 2.000000e+00
%2 = fcmp olt double %1, -1.000000e+00
br i1 %2, label %bb, label %return
return: ; preds = %bb
ret void
}
define void @test3() nounwind {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[IV:%.*]] = phi double [ 0.000000e+00, [[ENTRY:%.*]] ], [ [[TMP1:%.*]], [[BB]] ]
; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[IV]]) #0
; CHECK-NEXT: [[TMP1]] = fadd double [[IV]], 1.000000e+00
; CHECK-NEXT: br i1 false, label [[BB]], label [[RETURN:%.*]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
br label %bb
bb: ; preds = %bb, %entry
%iv = phi double [ 0.000000e+00, %entry ], [ %1, %bb ]
%0 = tail call i32 @foo(double %iv) nounwind
%1 = fadd double %iv, 1.000000e+00
%2 = fcmp olt double %1, -1.000000e+00
br i1 %2, label %bb, label %return
return:
ret void
}
define void @test4() nounwind {
; CHECK-LABEL: @test4(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[BB:%.*]]
; CHECK: bb:
; CHECK-NEXT: [[IV_INT:%.*]] = phi i32 [ 40, [[ENTRY:%.*]] ], [ [[DOTINT:%.*]], [[BB]] ]
; CHECK-NEXT: [[INDVAR_CONV:%.*]] = sitofp i32 [[IV_INT]] to double
; CHECK-NEXT: [[TMP0:%.*]] = tail call i32 @foo(double [[INDVAR_CONV]]) #0
; CHECK-NEXT: [[DOTINT]] = add nsw i32 [[IV_INT]], -1
; CHECK-NEXT: br i1 false, label [[BB]], label [[RETURN:%.*]]
; CHECK: return:
; CHECK-NEXT: ret void
;
entry:
br label %bb
bb: ; preds = %bb, %entry
%iv = phi double [ 40.000000e+00, %entry ], [ %1, %bb ]
%0 = tail call i32 @foo(double %iv) nounwind
%1 = fadd double %iv, -1.000000e+00
%2 = fcmp olt double %1, 1.000000e+00
br i1 %2, label %bb, label %return
return:
ret void
}
; PR6761
define void @test5() nounwind {
; <label>:0
; CHECK-LABEL: @test5(
; CHECK-NEXT: br label [[TMP1:%.*]]
; CHECK: 1:
; CHECK-NEXT: [[DOTINT:%.*]] = phi i32 [ 9, [[TMP0:%.*]] ], [ [[DOTINT1:%.*]], [[TMP1]] ]
; CHECK-NEXT: [[TMP2:%.*]] = tail call i32 @foo(double 0.000000e+00)
; CHECK-NEXT: [[DOTINT1]] = add nsw i32 [[DOTINT]], -1
; CHECK-NEXT: [[TMP3:%.*]] = icmp slt i32 [[DOTINT1]], 0
; CHECK-NEXT: br i1 [[TMP3]], label [[EXIT:%.*]], label [[TMP1]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
br label %1
; <label>:1
%2 = phi double [ 9.000000e+00, %0 ], [ %4, %1 ]
%3 = tail call i32 @foo(double 0.0)
%4 = fadd double %2, -1.000000e+00
%5 = fcmp ult double %4, 0.000000e+00
br i1 %5, label %exit, label %1
exit:
ret void
}
|
