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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
; RUN: opt -passes=ipsccp --funcspec-min-function-size=1 -S < %s | FileCheck %s
define i32 @caller() {
; CHECK-LABEL: define i32 @caller() {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee.specialized.1(i32 1)
; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee.specialized.2(i32 0)
; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 undef, 0
; CHECK-NEXT: br i1 [[COND]], label %[[COMMON_RET:.*]], label %[[IF_THEN:.*]]
; CHECK: [[COMMON_RET]]:
; CHECK-NEXT: ret i32 0
; CHECK: [[IF_THEN]]:
; CHECK-NEXT: ret i32 0
;
entry:
%call1 = call i32 @callee(i32 1)
%call2 = call i32 @callee(i32 0)
%cond = icmp eq i32 %call2, 0
br i1 %cond, label %common.ret, label %if.then
common.ret: ; preds = %entry
ret i32 0
if.then: ; preds = %entry
%unreachable_call = call i32 @callee(i32 2)
ret i32 %unreachable_call
}
define internal i32 @callee(i32 %arg) {
entry:
br label %loop
loop: ; preds = %ai, %entry
%add = or i32 0, 0
%cond = icmp eq i32 %arg, 1
br i1 %cond, label %exit, label %loop
exit: ; preds = %ai
ret i32 0
}
declare void @other_user(ptr)
define i32 @caller2() {
; CHECK-LABEL: define i32 @caller2() {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: call void @other_user(ptr @callee2)
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee2.specialized.3(i32 1)
; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee2.specialized.4(i32 0)
; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 undef, 0
; CHECK-NEXT: br i1 [[COND]], label %[[COMMON_RET:.*]], label %[[IF_THEN:.*]]
; CHECK: [[COMMON_RET]]:
; CHECK-NEXT: ret i32 0
; CHECK: [[IF_THEN]]:
; CHECK-NEXT: [[UNREACHABLE_CALL:%.*]] = call i32 @callee2.specialized.7(i32 2)
; CHECK-NEXT: ret i32 undef
;
entry:
call void @other_user(ptr @callee2)
%call1 = call i32 @callee2(i32 1)
%call2 = call i32 @callee2(i32 0)
%cond = icmp eq i32 %call2, 0
br i1 %cond, label %common.ret, label %if.then
common.ret: ; preds = %entry
ret i32 0
if.then: ; preds = %entry
%unreachable_call = call i32 @callee2(i32 2)
ret i32 %unreachable_call
}
define internal i32 @callee2(i32 %arg) {
; CHECK-LABEL: define internal i32 @callee2(
; CHECK-SAME: i32 [[ARG:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: br label %[[LOOP:.*]]
; CHECK: [[LOOP]]:
; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 [[ARG]], 1
; CHECK-NEXT: br i1 [[COND]], label %[[EXIT:.*]], label %[[LOOP]]
; CHECK: [[EXIT]]:
; CHECK-NEXT: ret i32 0
;
entry:
br label %loop
loop: ; preds = %ai, %entry
%add = or i32 0, 0
%cond = icmp eq i32 %arg, 1
br i1 %cond, label %exit, label %loop
exit: ; preds = %ai
ret i32 0
}
define i32 @caller3(i32 %arg) {
; CHECK-LABEL: define range(i32 2, 1) i32 @caller3(
; CHECK-SAME: i32 [[ARG:%.*]]) {
; CHECK-NEXT: [[ENTRY:.*:]]
; CHECK-NEXT: [[CALL1:%.*]] = call i32 @callee3.specialized.5(i32 0)
; CHECK-NEXT: [[CALL2:%.*]] = call i32 @callee3.specialized.6(i32 1)
; CHECK-NEXT: [[COND:%.*]] = icmp eq i32 undef, 0
; CHECK-NEXT: br i1 [[COND]], label %[[COMMON_RET:.*]], label %[[IF_THEN:.*]]
; CHECK: [[COMMON_RET]]:
; CHECK-NEXT: ret i32 0
; CHECK: [[IF_THEN]]:
; CHECK-NEXT: ret i32 poison
;
entry:
%call1 = call i32 @callee3(i32 0)
%call2 = call i32 @callee3(i32 1)
%cond = icmp eq i32 %call2, 0
br i1 %cond, label %common.ret, label %if.then
common.ret: ; preds = %entry
ret i32 0
if.then: ; preds = %entry
%unreachable_call = call i32 @callee3(i32 %arg)
ret i32 %unreachable_call
}
define internal i32 @callee3(i32 %arg) {
entry:
br label %loop
loop: ; preds = %ai, %entry
%add = or i32 0, 0
%cond = icmp ne i32 %arg, 1
br i1 %cond, label %exit, label %loop
exit: ; preds = %ai
ret i32 %arg
}
|
