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
146
147
148
149
150
151
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -basic-aa -loop-idiom < %s -S | FileCheck %s
define void @copy_both_noalias(float* noalias nocapture %d, float* noalias nocapture readonly %s, i64 %sz) {
; CHECK-LABEL: @copy_both_noalias(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[D1:%.*]] = bitcast float* [[D:%.*]] to i8*
; CHECK-NEXT: [[S2:%.*]] = bitcast float* [[S:%.*]] to i8*
; CHECK-NEXT: [[EXITCOND_NOT1:%.*]] = icmp eq i64 [[SZ:%.*]], 0
; CHECK-NEXT: br i1 [[EXITCOND_NOT1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SZ]], 2
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[D1]], i8* align 4 [[S2]], i64 [[TMP0]], i1 false)
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[I_04:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[D_ADDR_03:%.*]] = phi float* [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[D]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[S_ADDR_02:%.*]] = phi float* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[S]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds float, float* [[S_ADDR_02]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[S_ADDR_02]], align 4
; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds float, float* [[D_ADDR_03]], i64 1
; CHECK-NEXT: [[INC]] = add i64 [[I_04]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[SZ]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: br label [[FOR_END]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
entry:
%exitcond.not1 = icmp eq i64 %sz, 0
br i1 %exitcond.not1, label %for.end, label %for.body.preheader
for.body.preheader: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%i.04 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%d.addr.03 = phi float* [ %incdec.ptr1, %for.body ], [ %d, %for.body.preheader ]
%s.addr.02 = phi float* [ %incdec.ptr, %for.body ], [ %s, %for.body.preheader ]
%incdec.ptr = getelementptr inbounds float, float* %s.addr.02, i64 1
%0 = load float, float* %s.addr.02, align 4
%incdec.ptr1 = getelementptr inbounds float, float* %d.addr.03, i64 1
store float %0, float* %d.addr.03, align 4
%inc = add i64 %i.04, 1
%exitcond.not = icmp eq i64 %inc, %sz
br i1 %exitcond.not, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
define void @copy_one_noalias(float* nocapture %d, float* noalias nocapture readonly %s, i64 %sz) {
; CHECK-LABEL: @copy_one_noalias(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[D1:%.*]] = bitcast float* [[D:%.*]] to i8*
; CHECK-NEXT: [[S2:%.*]] = bitcast float* [[S:%.*]] to i8*
; CHECK-NEXT: [[EXITCOND_NOT1:%.*]] = icmp eq i64 [[SZ:%.*]], 0
; CHECK-NEXT: br i1 [[EXITCOND_NOT1]], label [[FOR_END:%.*]], label [[FOR_BODY_PREHEADER:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = shl nuw i64 [[SZ]], 2
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 4 [[D1]], i8* align 4 [[S2]], i64 [[TMP0]], i1 false)
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.body:
; CHECK-NEXT: [[I_04:%.*]] = phi i64 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[D_ADDR_03:%.*]] = phi float* [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[D]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[S_ADDR_02:%.*]] = phi float* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[S]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds float, float* [[S_ADDR_02]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = load float, float* [[S_ADDR_02]], align 4
; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds float, float* [[D_ADDR_03]], i64 1
; CHECK-NEXT: [[INC]] = add i64 [[I_04]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INC]], [[SZ]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END_LOOPEXIT:%.*]], label [[FOR_BODY]]
; CHECK: for.end.loopexit:
; CHECK-NEXT: br label [[FOR_END]]
; CHECK: for.end:
; CHECK-NEXT: ret void
;
entry:
%exitcond.not1 = icmp eq i64 %sz, 0
br i1 %exitcond.not1, label %for.end, label %for.body.preheader
for.body.preheader: ; preds = %entry
br label %for.body
for.body: ; preds = %for.body.preheader, %for.body
%i.04 = phi i64 [ %inc, %for.body ], [ 0, %for.body.preheader ]
%d.addr.03 = phi float* [ %incdec.ptr1, %for.body ], [ %d, %for.body.preheader ]
%s.addr.02 = phi float* [ %incdec.ptr, %for.body ], [ %s, %for.body.preheader ]
%incdec.ptr = getelementptr inbounds float, float* %s.addr.02, i64 1
%0 = load float, float* %s.addr.02, align 4
%incdec.ptr1 = getelementptr inbounds float, float* %d.addr.03, i64 1
store float %0, float* %d.addr.03, align 4
%inc = add i64 %i.04, 1
%exitcond.not = icmp eq i64 %inc, %sz
br i1 %exitcond.not, label %for.end.loopexit, label %for.body
for.end.loopexit: ; preds = %for.body
br label %for.end
for.end: ; preds = %for.end.loopexit, %entry
ret void
}
; PR44378
define dso_local void @memcpy_loop(i8* noalias nocapture %p, i8* noalias nocapture readonly %q, i32 %n) {
; CHECK-LABEL: @memcpy_loop(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[CMP4:%.*]] = icmp sgt i32 [[N:%.*]], 0
; CHECK-NEXT: br i1 [[CMP4]], label [[FOR_BODY_PREHEADER:%.*]], label [[FOR_COND_CLEANUP:%.*]]
; CHECK: for.body.preheader:
; CHECK-NEXT: [[TMP0:%.*]] = zext i32 [[N]] to i64
; CHECK-NEXT: call void @llvm.memcpy.p0i8.p0i8.i64(i8* align 1 [[P:%.*]], i8* align 1 [[Q:%.*]], i64 [[TMP0]], i1 false)
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.cond.cleanup.loopexit:
; CHECK-NEXT: br label [[FOR_COND_CLEANUP]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: ret void
; CHECK: for.body:
; CHECK-NEXT: [[I_07:%.*]] = phi i32 [ [[INC:%.*]], [[FOR_BODY]] ], [ 0, [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[P_ADDR_06:%.*]] = phi i8* [ [[INCDEC_PTR1:%.*]], [[FOR_BODY]] ], [ [[P]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[Q_ADDR_05:%.*]] = phi i8* [ [[INCDEC_PTR:%.*]], [[FOR_BODY]] ], [ [[Q]], [[FOR_BODY_PREHEADER]] ]
; CHECK-NEXT: [[INCDEC_PTR]] = getelementptr inbounds i8, i8* [[Q_ADDR_05]], i64 1
; CHECK-NEXT: [[TMP1:%.*]] = load i8, i8* [[Q_ADDR_05]], align 1
; CHECK-NEXT: [[INCDEC_PTR1]] = getelementptr inbounds i8, i8* [[P_ADDR_06]], i64 1
; CHECK-NEXT: [[INC]] = add nuw nsw i32 [[I_07]], 1
; CHECK-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i32 [[INC]], [[N]]
; CHECK-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_COND_CLEANUP_LOOPEXIT:%.*]], label [[FOR_BODY]]
;
entry:
%cmp4 = icmp sgt i32 %n, 0
br i1 %cmp4, label %for.body, label %for.cond.cleanup
for.cond.cleanup:
ret void
for.body:
%i.07 = phi i32 [ %inc, %for.body ], [ 0, %entry ]
%p.addr.06 = phi i8* [ %incdec.ptr1, %for.body ], [ %p, %entry ]
%q.addr.05 = phi i8* [ %incdec.ptr, %for.body ], [ %q, %entry ]
%incdec.ptr = getelementptr inbounds i8, i8* %q.addr.05, i64 1
%0 = load i8, i8* %q.addr.05, align 1
%incdec.ptr1 = getelementptr inbounds i8, i8* %p.addr.06, i64 1
store i8 %0, i8* %p.addr.06, align 1
%inc = add nuw nsw i32 %i.07, 1
%exitcond.not = icmp eq i32 %inc, %n
br i1 %exitcond.not, label %for.cond.cleanup, label %for.body
}
|
