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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -enable-coroutines -passes='default<O2>' -aa-pipeline=default -S | FileCheck %s
define i8* @f(i8* %buffer, i32 %n) {
; CHECK-LABEL: @f(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: [[TMP0:%.*]] = tail call i8* @allocate(i32 12)
; CHECK-NEXT: [[TMP1:%.*]] = bitcast i8* [[BUFFER:%.*]] to i8**
; CHECK-NEXT: store i8* [[TMP0]], i8** [[TMP1]], align 8
; CHECK-NEXT: [[N_SPILL_ADDR:%.*]] = bitcast i8* [[TMP0]] to i32*
; CHECK-NEXT: store i32 [[N:%.*]], i32* [[N_SPILL_ADDR]], align 4
; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i32, i1)* @f.resume.0 to i8*)
;
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast (i8* (i8*, i32, i1)* @prototype to i8*), i8* bitcast (i8* (i32)* @allocate to i8*), i8* bitcast (void (i8*)* @deallocate to i8*))
%hdl = call i8* @llvm.coro.begin(token %id, i8* null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %sum, %resume ]
%values = call { i32, i1 } (...) @llvm.coro.suspend.retcon.sl_i32i1s()
%finished = extractvalue { i32, i1 } %values, 1
br i1 %finished, label %cleanup, label %resume
resume:
%input = extractvalue { i32, i1 } %values, 0
%sum = add i32 %n.val, %input
br label %loop
cleanup:
call void @print(i32 %n.val)
call i1 @llvm.coro.end(i8* %hdl, i1 0)
unreachable
}
define i32 @main() {
; CHECK-LABEL: @main(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = alloca i8*, align 8
; CHECK-NEXT: [[DOTSUB:%.*]] = bitcast i8** [[TMP0]] to i8*
; CHECK-NEXT: [[TMP1:%.*]] = tail call i8* @allocate(i32 12)
; CHECK-NEXT: store i8* [[TMP1]], i8** [[TMP0]], align 8
; CHECK-NEXT: [[N_SPILL_ADDR_I:%.*]] = bitcast i8* [[TMP1]] to i32*
; CHECK-NEXT: store i32 1, i32* [[N_SPILL_ADDR_I]], align 4
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META0:![0-9]+]])
; CHECK-NEXT: [[TMP2:%.*]] = bitcast i8** [[TMP0]] to %f.Frame**
; CHECK-NEXT: [[FRAMEPTR_I:%.*]] = load %f.Frame*, %f.Frame** [[TMP2]], align 8, !alias.scope !0
; CHECK-NEXT: [[N_RELOAD_ADDR9_I:%.*]] = getelementptr inbounds [[F_FRAME:%.*]], %f.Frame* [[FRAMEPTR_I]], i64 0, i32 0
; CHECK-NEXT: [[N_RELOAD10_I:%.*]] = load i32, i32* [[N_RELOAD_ADDR9_I]], align 4, !noalias !0
; CHECK-NEXT: [[N_VAL3_SPILL_ADDR_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I]], i64 0, i32 1
; CHECK-NEXT: store i32 [[N_RELOAD10_I]], i32* [[N_VAL3_SPILL_ADDR_I]], align 4, !noalias !0
; CHECK-NEXT: [[INPUT_SPILL_ADDR_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I]], i64 0, i32 2
; CHECK-NEXT: store i32 2, i32* [[INPUT_SPILL_ADDR_I]], align 4, !noalias !0
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META3:![0-9]+]])
; CHECK-NEXT: [[FRAMEPTR_I1:%.*]] = load %f.Frame*, %f.Frame** [[TMP2]], align 8, !alias.scope !3
; CHECK-NEXT: [[INPUT_RELOAD_ADDR_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I1]], i64 0, i32 2
; CHECK-NEXT: [[INPUT_RELOAD_I:%.*]] = load i32, i32* [[INPUT_RELOAD_ADDR_I]], align 4, !noalias !3
; CHECK-NEXT: [[N_VAL3_RELOAD_ADDR_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I1]], i64 0, i32 1
; CHECK-NEXT: [[N_VAL3_RELOAD_I:%.*]] = load i32, i32* [[N_VAL3_RELOAD_ADDR_I]], align 4, !noalias !3
; CHECK-NEXT: [[SUM8_I:%.*]] = add i32 [[N_VAL3_RELOAD_I]], [[INPUT_RELOAD_I]]
; CHECK-NEXT: store i32 [[SUM8_I]], i32* [[N_VAL3_RELOAD_ADDR_I]], align 4, !noalias !3
; CHECK-NEXT: store i32 4, i32* [[INPUT_RELOAD_ADDR_I]], align 4, !noalias !3
; CHECK-NEXT: call void @llvm.experimental.noalias.scope.decl(metadata [[META6:![0-9]+]])
; CHECK-NEXT: [[FRAMEPTR_I4:%.*]] = load %f.Frame*, %f.Frame** [[TMP2]], align 8, !alias.scope !6
; CHECK-NEXT: [[INPUT_RELOAD_ADDR13_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I4]], i64 0, i32 2
; CHECK-NEXT: [[INPUT_RELOAD14_I:%.*]] = load i32, i32* [[INPUT_RELOAD_ADDR13_I]], align 4, !noalias !6
; CHECK-NEXT: [[N_VAL3_RELOAD_ADDR11_I:%.*]] = getelementptr inbounds [[F_FRAME]], %f.Frame* [[FRAMEPTR_I4]], i64 0, i32 1
; CHECK-NEXT: [[N_VAL3_RELOAD12_I:%.*]] = load i32, i32* [[N_VAL3_RELOAD_ADDR11_I]], align 4, !noalias !6
; CHECK-NEXT: [[SUM7_I:%.*]] = add i32 [[N_VAL3_RELOAD12_I]], [[INPUT_RELOAD14_I]]
; CHECK-NEXT: call void @print(i32 [[SUM7_I]]), !noalias !6
; CHECK-NEXT: [[TMP3:%.*]] = bitcast %f.Frame* [[FRAMEPTR_I4]] to i8*
; CHECK-NEXT: call void @deallocate(i8* [[TMP3]]), !noalias !6
; CHECK-NEXT: ret i32 0
;
entry:
%0 = alloca [8 x i8], align 4
%buffer = bitcast [8 x i8]* %0 to i8*
%prepare = call i8* @llvm.coro.prepare.retcon(i8* bitcast (i8* (i8*, i32)* @f to i8*))
%f = bitcast i8* %prepare to i8* (i8*, i32)*
%cont0 = call i8* %f(i8* %buffer, i32 1)
%cont0.cast = bitcast i8* %cont0 to i8* (i8*, i32, i1)*
%cont1 = call i8* %cont0.cast(i8* %buffer, i32 2, i1 zeroext false)
%cont1.cast = bitcast i8* %cont1 to i8* (i8*, i32, i1)*
%cont2 = call i8* %cont1.cast(i8* %buffer, i32 4, i1 zeroext false)
%cont2.cast = bitcast i8* %cont2 to i8* (i8*, i32, i1)*
call i8* %cont2.cast(i8* %buffer, i32 100, i1 zeroext true)
ret i32 0
}
; Unfortunately, we don't seem to fully optimize this right now due
; to some sort of phase-ordering thing.
declare token @llvm.coro.id.retcon(i32, i32, i8*, i8*, i8*, i8*)
declare i8* @llvm.coro.begin(token, i8*)
declare { i32, i1 } @llvm.coro.suspend.retcon.sl_i32i1s(...)
declare i1 @llvm.coro.end(i8*, i1)
declare i8* @llvm.coro.prepare.retcon(i8*)
declare i8* @prototype(i8*, i32, i1 zeroext)
declare noalias i8* @allocate(i32 %size)
declare void @deallocate(i8* %ptr)
declare void @print(i32)
|
