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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes='default<O2>' -S | FileCheck %s
target datalayout = "p:64:64:64"
declare {ptr, ptr, i32} @prototype_f(ptr, i1)
define {ptr, ptr, i32} @f(ptr %buffer, i32 %n, { i32 } %dummy) {
; CHECK-LABEL: @f(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: [[N_VAL_SPILL_ADDR:%.*]] = getelementptr inbounds nuw i8, ptr [[BUFFER:%.*]], i64 8
; CHECK-NEXT: store i32 [[N:%.*]], ptr [[N_VAL_SPILL_ADDR]], align 4
; CHECK-NEXT: [[TMP0:%.*]] = tail call ptr @allocate(i32 [[N]])
; CHECK-NEXT: store ptr [[TMP0]], ptr [[BUFFER]], align 8
; CHECK-NEXT: [[TMP1:%.*]] = insertvalue { ptr, ptr, i32 } { ptr @f.resume.0, ptr poison, i32 poison }, ptr [[TMP0]], 1
; CHECK-NEXT: [[TMP2:%.*]] = insertvalue { ptr, ptr, i32 } [[TMP1]], i32 [[N]], 2
; CHECK-NEXT: ret { ptr, ptr, i32 } [[TMP2]]
;
entry:
%id = call token @llvm.coro.id.retcon(i32 1024, i32 8, ptr %buffer, ptr @prototype_f, ptr @allocate, ptr @deallocate)
%hdl = call ptr @llvm.coro.begin(token %id, ptr null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %inc, %resume ]
%alloca = call token @llvm.coro.alloca.alloc.i32(i32 %n.val, i32 8)
%ptr = call ptr @llvm.coro.alloca.get(token %alloca)
%unwind = call i1 (...) @llvm.coro.suspend.retcon.i1(ptr %ptr, i32 %n.val)
call void @llvm.coro.alloca.free(token %alloca)
br i1 %unwind, label %cleanup, label %resume
resume:
%inc = add i32 %n.val, 1
br label %loop
cleanup:
call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
unreachable
}
declare {ptr, i32} @prototype_g(ptr, i1)
define {ptr, i32} @g(ptr %buffer, i32 %n) {
; CHECK-LABEL: @g(
; CHECK-NEXT: coro.return:
; CHECK-NEXT: store i32 [[N:%.*]], ptr [[BUFFER:%.*]], align 4
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: [[TMP1:%.*]] = alloca i8, i64 [[TMP0]], align 8
; CHECK-NEXT: tail call void @use(ptr nonnull [[TMP1]])
; CHECK-NEXT: [[TMP2:%.*]] = insertvalue { ptr, i32 } { ptr @g.resume.0, i32 poison }, i32 [[N]], 1
; CHECK-NEXT: ret { ptr, i32 } [[TMP2]]
;
entry:
%id = call token @llvm.coro.id.retcon(i32 1024, i32 8, ptr %buffer, ptr @prototype_g, ptr @allocate, ptr @deallocate)
%hdl = call ptr @llvm.coro.begin(token %id, ptr null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %inc, %resume ]
%alloca = call token @llvm.coro.alloca.alloc.i32(i32 %n.val, i32 8)
%ptr = call ptr @llvm.coro.alloca.get(token %alloca)
call void @use(ptr %ptr)
call void @llvm.coro.alloca.free(token %alloca)
%unwind = call i1 (...) @llvm.coro.suspend.retcon.i1(i32 %n.val)
br i1 %unwind, label %cleanup, label %resume
resume:
%inc = add i32 %n.val, 1
br label %loop
cleanup:
call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
unreachable
}
declare token @llvm.coro.id.retcon(i32, i32, ptr, ptr, ptr, ptr)
declare ptr @llvm.coro.begin(token, ptr)
declare i1 @llvm.coro.suspend.retcon.i1(...)
declare void @llvm.coro.suspend.retcon.isVoid(...)
declare i1 @llvm.coro.end(ptr, i1, token)
declare ptr @llvm.coro.prepare.retcon(ptr)
declare token @llvm.coro.alloca.alloc.i32(i32, i32)
declare ptr @llvm.coro.alloca.get(token)
declare void @llvm.coro.alloca.free(token)
declare noalias ptr @allocate(i32 %size)
declare void @deallocate(ptr %ptr)
declare void @print(i32)
declare void @use(ptr)
|
