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
142
143
144
145
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
; Show that we do not extract similar regions that would involve the splitting
; of phi nodes on exit.
define void @function1(ptr %a, ptr %b) {
entry:
%0 = alloca i32, align 4
%c = load i32, ptr %0, align 4
br label %test1
test1:
%e = load i32, ptr %0, align 4
br i1 true, label %first, label %test
test:
%d = load i32, ptr %0, align 4
br i1 true, label %first, label %next
first:
%1 = phi i32 [ %c, %test ], [ %e, %test1 ]
ret void
next:
%2 = add i32 %d, 1
%3 = add i32 %e, 1
ret void
}
define void @function2(ptr %a, ptr %b) {
entry:
%0 = alloca i32, align 4
%c = load i32, ptr %0, align 4
br label %test1
test1:
%e = load i32, ptr %0, align 4
br i1 true, label %first, label %test
test:
%d = load i32, ptr %0, align 4
br i1 true, label %first, label %next
first:
ret void
next:
%1 = add i32 %d, 1
%2 = add i32 %e, 1
ret void
}
; CHECK-LABEL: @function1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[DOTCE_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[D_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[E_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[E_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[D_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[DOTCE_LOC]])
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(ptr [[TMP0]], ptr [[E_LOC]], ptr [[D_LOC]], ptr [[DOTCE_LOC]], i32 0)
; CHECK-NEXT: [[E_RELOAD:%.*]] = load i32, ptr [[E_LOC]], align 4
; CHECK-NEXT: [[D_RELOAD:%.*]] = load i32, ptr [[D_LOC]], align 4
; CHECK-NEXT: [[DOTCE_RELOAD:%.*]] = load i32, ptr [[DOTCE_LOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[E_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[D_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[DOTCE_LOC]])
; CHECK-NEXT: br i1 [[TMP1]], label [[FIRST:%.*]], label [[NEXT:%.*]]
; CHECK: first:
; CHECK-NEXT: [[TMP2:%.*]] = phi i32 [ [[DOTCE_RELOAD]], [[ENTRY:%.*]] ]
; CHECK-NEXT: ret void
; CHECK: next:
; CHECK-NEXT: call void @outlined_ir_func_1(i32 [[D_RELOAD]], i32 [[E_RELOAD]])
; CHECK-NEXT: ret void
;
;
; CHECK-LABEL: @function2(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[D_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[E_LOC:%.*]] = alloca i32, align 4
; CHECK-NEXT: [[TMP0:%.*]] = alloca i32, align 4
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[E_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.start.p0(i64 -1, ptr [[D_LOC]])
; CHECK-NEXT: [[TMP1:%.*]] = call i1 @outlined_ir_func_0(ptr [[TMP0]], ptr [[E_LOC]], ptr [[D_LOC]], ptr null, i32 1)
; CHECK-NEXT: [[E_RELOAD:%.*]] = load i32, ptr [[E_LOC]], align 4
; CHECK-NEXT: [[D_RELOAD:%.*]] = load i32, ptr [[D_LOC]], align 4
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[E_LOC]])
; CHECK-NEXT: call void @llvm.lifetime.end.p0(i64 -1, ptr [[D_LOC]])
; CHECK-NEXT: br i1 [[TMP1]], label [[FIRST:%.*]], label [[NEXT:%.*]]
; CHECK: first:
; CHECK-NEXT: ret void
; CHECK: next:
; CHECK-NEXT: call void @outlined_ir_func_1(i32 [[D_RELOAD]], i32 [[E_RELOAD]])
; CHECK-NEXT: ret void
;
;
; CHECK-LABEL: define internal i1 @outlined_ir_func_0(
; CHECK-NEXT: newFuncRoot:
; CHECK-NEXT: br label [[ENTRY_TO_OUTLINE:%.*]]
; CHECK: entry_to_outline:
; CHECK-NEXT: [[C:%.*]] = load i32, ptr [[TMP0:%.*]], align 4
; CHECK-NEXT: br label [[TEST1:%.*]]
; CHECK: test1:
; CHECK-NEXT: [[E:%.*]] = load i32, ptr [[TMP0]], align 4
; CHECK-NEXT: br i1 true, label [[FIRST_SPLIT:%.*]], label [[TEST:%.*]]
; CHECK: test:
; CHECK-NEXT: [[D:%.*]] = load i32, ptr [[TMP0]], align 4
; CHECK-NEXT: br i1 true, label [[FIRST_SPLIT]], label [[NEXT_EXITSTUB:%.*]]
; CHECK: first.split:
; CHECK-NEXT: [[DOTCE:%.*]] = phi i32 [ [[C]], [[TEST]] ], [ [[E]], [[TEST1]] ]
; CHECK-NEXT: br label [[FIRST_EXITSTUB:%.*]]
; CHECK: first.exitStub:
; CHECK-NEXT: switch i32 [[TMP4:%.*]], label [[FINAL_BLOCK_1:%.*]] [
; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_1:%.*]]
; CHECK-NEXT: i32 1, label [[OUTPUT_BLOCK_1_1:%.*]]
; CHECK-NEXT: ]
; CHECK: next.exitStub:
; CHECK-NEXT: switch i32 [[TMP4]], label [[FINAL_BLOCK_0:%.*]] [
; CHECK-NEXT: i32 0, label [[OUTPUT_BLOCK_0_0:%.*]]
; CHECK-NEXT: i32 1, label [[OUTPUT_BLOCK_1_0:%.*]]
; CHECK-NEXT: ]
; CHECK: output_block_0_0:
; CHECK-NEXT: store i32 [[E]], ptr [[TMP1:%.*]], align 4
; CHECK-NEXT: store i32 [[D]], ptr [[TMP2:%.*]], align 4
; CHECK-NEXT: br label [[FINAL_BLOCK_0]]
; CHECK: output_block_0_1:
; CHECK-NEXT: store i32 [[E]], ptr [[TMP1]], align 4
; CHECK-NEXT: store i32 [[DOTCE]], ptr [[TMP3:%.*]], align 4
; CHECK-NEXT: br label [[FINAL_BLOCK_1]]
; CHECK: output_block_1_0:
; CHECK-NEXT: store i32 [[E]], ptr [[TMP1]], align 4
; CHECK-NEXT: store i32 [[D]], ptr [[TMP2]], align 4
; CHECK-NEXT: br label [[FINAL_BLOCK_0]]
; CHECK: output_block_1_1:
; CHECK-NEXT: store i32 [[E]], ptr [[TMP1]], align 4
; CHECK-NEXT: br label [[FINAL_BLOCK_1]]
; CHECK: final_block_0:
; CHECK-NEXT: ret i1 false
; CHECK: final_block_1:
; CHECK-NEXT: ret i1 true
;
;
; CHECK-LABEL: @outlined_ir_func_1(
; CHECK-NEXT: newFuncRoot:
; CHECK-NEXT: br label [[NEXT_TO_OUTLINE:%.*]]
; CHECK: next_to_outline:
; CHECK-NEXT: [[TMP2:%.*]] = add i32 [[TMP0:%.*]], 1
; CHECK-NEXT: [[TMP3:%.*]] = add i32 [[TMP1:%.*]], 1
; CHECK-NEXT: br label [[NEXT_AFTER_OUTLINE_EXITSTUB:%.*]]
; CHECK: next_after_outline.exitStub:
; CHECK-NEXT: ret void
;
|
