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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -aa-pipeline=basic-aa -passes='loop-distribute' -enable-loop-distribute -S %s | FileCheck %s
; Testcases inspired by PR50296, PR50288.
define void @phi_load_store_distribute(i1 %c, i16* %A, i16* %B, i16* %C) {
; CHECK-LABEL: @phi_load_store_distribute(
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[IV:%.*]] = phi i16 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[IF_END:%.*]] ]
; CHECK-NEXT: [[LV:%.*]] = load i16, i16* [[A:%.*]], align 1
; CHECK-NEXT: store i16 [[LV]], i16* [[A]], align 1
; CHECK-NEXT: br i1 [[C:%.*]], label [[IF_THEN:%.*]], label [[IF_END]]
; CHECK: if.then:
; CHECK-NEXT: [[LV2:%.*]] = load i16, i16* [[A]], align 1
; CHECK-NEXT: br label [[IF_END]]
; CHECK: if.end:
; CHECK-NEXT: [[C_SINK:%.*]] = phi i16* [ [[B:%.*]], [[IF_THEN]] ], [ [[C:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT: [[LV3:%.*]] = load i16, i16* [[C_SINK]], align 2
; CHECK-NEXT: [[ADD:%.*]] = add i16 [[LV3]], 10
; CHECK-NEXT: store i16 [[ADD]], i16* [[C_SINK]], align 1
; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i16 [[IV]], 1
; CHECK-NEXT: [[TOBOOL_NOT:%.*]] = icmp eq i16 [[IV_NEXT]], 1000
; CHECK-NEXT: br i1 [[TOBOOL_NOT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %if.end, %entry
%iv = phi i16 [ 0, %entry ], [ %iv.next, %if.end ]
%lv = load i16, i16* %A, align 1
store i16 %lv, i16* %A, align 1
br i1 %c, label %if.then, label %if.end
if.then: ; preds = %for.body
%lv2 = load i16, i16* %A, align 1
br label %if.end
if.end: ; preds = %if.then, %for.body
%c.sink = phi i16* [ %B, %if.then ], [ %C, %for.body ]
%lv3 = load i16, i16* %c.sink
%add = add i16 %lv3, 10
store i16 %add, i16* %c.sink, align 1
%iv.next = add nuw nsw i16 %iv, 1
%tobool.not = icmp eq i16 %iv.next, 1000
br i1 %tobool.not, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %if.end
ret void
}
define void @phi_load_distribute(i1 %c, i16* %A, i16* %B, i16* %C) {
; CHECK-LABEL: @phi_load_distribute(
; CHECK-NEXT: entry:
; CHECK: for.end.loopexit:
; CHECK-NEXT: ret void
;
entry:
br label %for.body
for.body: ; preds = %if.end, %entry
%iv = phi i16 [ 0, %entry ], [ %iv.next, %if.end ]
%lv = load i16, i16* %A, align 1
store i16 %lv, i16* %A, align 1
br i1 %c, label %if.then, label %if.end
if.then: ; preds = %for.body
%lv2 = load i16, i16* %A, align 1
br label %if.end
if.end: ; preds = %if.then, %for.body
%c.sink = phi i16* [ %B, %if.then ], [ %C, %for.body ]
%lv3 = load i16, i16* %c.sink
%iv.next = add nuw nsw i16 %iv, 1
%tobool.not = icmp eq i16 %iv.next, 1000
br i1 %tobool.not, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %if.end
ret void
}
|
