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
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -passes="default<O1>" -mtriple aarch64 -mcpu=cortex-a55 | FileCheck %s -check-prefix=CHECK-A55
; RUN: opt < %s -S -passes="default<O1>" -mtriple aarch64 | FileCheck %s -check-prefix=CHECK-GENERIC
; Testing that, while runtime unrolling is performed on in-order cores (such as the cortex-a55), it is not performed when -mcpu is not specified
define void @runtime_unroll_generic(i32 %arg_0, ptr %arg_1, ptr %arg_2, ptr %arg_3) {
; CHECK-A55-LABEL: @runtime_unroll_generic(
; CHECK-A55-NEXT: entry:
; CHECK-A55-NEXT: [[CMP52_NOT:%.*]] = icmp eq i32 [[ARG_0:%.*]], 0
; CHECK-A55-NEXT: br i1 [[CMP52_NOT]], label [[FOR_END:%.*]], label [[FOR_BODY6_PREHEADER:%.*]]
; CHECK-A55: for.body6.preheader:
; CHECK-A55-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[ARG_0]] to i64
; CHECK-A55-NEXT: [[XTRAITER:%.*]] = and i64 [[WIDE_TRIP_COUNT]], 3
; CHECK-A55-NEXT: [[TMP0:%.*]] = icmp ult i32 [[ARG_0]], 4
; CHECK-A55-NEXT: br i1 [[TMP0]], label [[FOR_END_LOOPEXIT_UNR_LCSSA:%.*]], label [[FOR_BODY6_PREHEADER_NEW:%.*]]
; CHECK-A55: for.body6.preheader.new:
; CHECK-A55-NEXT: [[UNROLL_ITER:%.*]] = and i64 [[WIDE_TRIP_COUNT]], 4294967292
; CHECK-A55-NEXT: br label [[FOR_BODY6:%.*]]
; CHECK-A55: for.body6:
; CHECK-A55-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY6_PREHEADER_NEW]] ], [ [[INDVARS_IV_NEXT_3:%.*]], [[FOR_BODY6]] ]
; CHECK-A55-NEXT: [[NITER:%.*]] = phi i64 [ 0, [[FOR_BODY6_PREHEADER_NEW]] ], [ [[NITER_NEXT_3:%.*]], [[FOR_BODY6]] ]
; CHECK-A55-NEXT: [[ARRAYIDX10:%.*]] = getelementptr inbounds i16, ptr [[ARG_2:%.*]], i64 [[INDVARS_IV]]
; CHECK-A55-NEXT: [[TMP1:%.*]] = load i16, ptr [[ARRAYIDX10]], align 2
; CHECK-A55-NEXT: [[CONV:%.*]] = sext i16 [[TMP1]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14:%.*]] = getelementptr inbounds i16, ptr [[ARG_3:%.*]], i64 [[INDVARS_IV]]
; CHECK-A55-NEXT: [[TMP2:%.*]] = load i16, ptr [[ARRAYIDX14]], align 2
; CHECK-A55-NEXT: [[CONV15:%.*]] = sext i16 [[TMP2]] to i32
; CHECK-A55-NEXT: [[MUL16:%.*]] = mul nsw i32 [[CONV15]], [[CONV]]
; CHECK-A55-NEXT: [[ARRAYIDX20:%.*]] = getelementptr inbounds i32, ptr [[ARG_1:%.*]], i64 [[INDVARS_IV]]
; CHECK-A55-NEXT: [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX20]], align 4
; CHECK-A55-NEXT: [[ADD21:%.*]] = add nsw i32 [[MUL16]], [[TMP3]]
; CHECK-A55-NEXT: store i32 [[ADD21]], ptr [[ARRAYIDX20]], align 4
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT:%.*]] = or disjoint i64 [[INDVARS_IV]], 1
; CHECK-A55-NEXT: [[ARRAYIDX10_1:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_NEXT]]
; CHECK-A55-NEXT: [[TMP4:%.*]] = load i16, ptr [[ARRAYIDX10_1]], align 2
; CHECK-A55-NEXT: [[CONV_1:%.*]] = sext i16 [[TMP4]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_1:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_NEXT]]
; CHECK-A55-NEXT: [[TMP5:%.*]] = load i16, ptr [[ARRAYIDX14_1]], align 2
; CHECK-A55-NEXT: [[CONV15_1:%.*]] = sext i16 [[TMP5]] to i32
; CHECK-A55-NEXT: [[MUL16_1:%.*]] = mul nsw i32 [[CONV15_1]], [[CONV_1]]
; CHECK-A55-NEXT: [[ARRAYIDX20_1:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_NEXT]]
; CHECK-A55-NEXT: [[TMP6:%.*]] = load i32, ptr [[ARRAYIDX20_1]], align 4
; CHECK-A55-NEXT: [[ADD21_1:%.*]] = add nsw i32 [[MUL16_1]], [[TMP6]]
; CHECK-A55-NEXT: store i32 [[ADD21_1]], ptr [[ARRAYIDX20_1]], align 4
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT_1:%.*]] = or disjoint i64 [[INDVARS_IV]], 2
; CHECK-A55-NEXT: [[ARRAYIDX10_2:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_NEXT_1]]
; CHECK-A55-NEXT: [[TMP7:%.*]] = load i16, ptr [[ARRAYIDX10_2]], align 2
; CHECK-A55-NEXT: [[CONV_2:%.*]] = sext i16 [[TMP7]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_2:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_NEXT_1]]
; CHECK-A55-NEXT: [[TMP8:%.*]] = load i16, ptr [[ARRAYIDX14_2]], align 2
; CHECK-A55-NEXT: [[CONV15_2:%.*]] = sext i16 [[TMP8]] to i32
; CHECK-A55-NEXT: [[MUL16_2:%.*]] = mul nsw i32 [[CONV15_2]], [[CONV_2]]
; CHECK-A55-NEXT: [[ARRAYIDX20_2:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_NEXT_1]]
; CHECK-A55-NEXT: [[TMP9:%.*]] = load i32, ptr [[ARRAYIDX20_2]], align 4
; CHECK-A55-NEXT: [[ADD21_2:%.*]] = add nsw i32 [[MUL16_2]], [[TMP9]]
; CHECK-A55-NEXT: store i32 [[ADD21_2]], ptr [[ARRAYIDX20_2]], align 4
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT_2:%.*]] = or disjoint i64 [[INDVARS_IV]], 3
; CHECK-A55-NEXT: [[ARRAYIDX10_3:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_NEXT_2]]
; CHECK-A55-NEXT: [[TMP10:%.*]] = load i16, ptr [[ARRAYIDX10_3]], align 2
; CHECK-A55-NEXT: [[CONV_3:%.*]] = sext i16 [[TMP10]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_3:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_NEXT_2]]
; CHECK-A55-NEXT: [[TMP11:%.*]] = load i16, ptr [[ARRAYIDX14_3]], align 2
; CHECK-A55-NEXT: [[CONV15_3:%.*]] = sext i16 [[TMP11]] to i32
; CHECK-A55-NEXT: [[MUL16_3:%.*]] = mul nsw i32 [[CONV15_3]], [[CONV_3]]
; CHECK-A55-NEXT: [[ARRAYIDX20_3:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_NEXT_2]]
; CHECK-A55-NEXT: [[TMP12:%.*]] = load i32, ptr [[ARRAYIDX20_3]], align 4
; CHECK-A55-NEXT: [[ADD21_3:%.*]] = add nsw i32 [[MUL16_3]], [[TMP12]]
; CHECK-A55-NEXT: store i32 [[ADD21_3]], ptr [[ARRAYIDX20_3]], align 4
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT_3]] = add nuw nsw i64 [[INDVARS_IV]], 4
; CHECK-A55-NEXT: [[NITER_NEXT_3]] = add i64 [[NITER]], 4
; CHECK-A55-NEXT: [[NITER_NCMP_3:%.*]] = icmp eq i64 [[NITER_NEXT_3]], [[UNROLL_ITER]]
; CHECK-A55-NEXT: br i1 [[NITER_NCMP_3]], label [[FOR_END_LOOPEXIT_UNR_LCSSA]], label [[FOR_BODY6]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-A55: for.end.loopexit.unr-lcssa:
; CHECK-A55-NEXT: [[INDVARS_IV_UNR:%.*]] = phi i64 [ 0, [[FOR_BODY6_PREHEADER]] ], [ [[INDVARS_IV_NEXT_3]], [[FOR_BODY6]] ]
; CHECK-A55-NEXT: [[LCMP_MOD_NOT:%.*]] = icmp eq i64 [[XTRAITER]], 0
; CHECK-A55-NEXT: br i1 [[LCMP_MOD_NOT]], label [[FOR_END]], label [[FOR_BODY6_EPIL:%.*]]
; CHECK-A55: for.body6.epil:
; CHECK-A55-NEXT: [[ARRAYIDX10_EPIL:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_UNR]]
; CHECK-A55-NEXT: [[TMP13:%.*]] = load i16, ptr [[ARRAYIDX10_EPIL]], align 2
; CHECK-A55-NEXT: [[CONV_EPIL:%.*]] = sext i16 [[TMP13]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_EPIL:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_UNR]]
; CHECK-A55-NEXT: [[TMP14:%.*]] = load i16, ptr [[ARRAYIDX14_EPIL]], align 2
; CHECK-A55-NEXT: [[CONV15_EPIL:%.*]] = sext i16 [[TMP14]] to i32
; CHECK-A55-NEXT: [[MUL16_EPIL:%.*]] = mul nsw i32 [[CONV15_EPIL]], [[CONV_EPIL]]
; CHECK-A55-NEXT: [[ARRAYIDX20_EPIL:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_UNR]]
; CHECK-A55-NEXT: [[TMP15:%.*]] = load i32, ptr [[ARRAYIDX20_EPIL]], align 4
; CHECK-A55-NEXT: [[ADD21_EPIL:%.*]] = add nsw i32 [[MUL16_EPIL]], [[TMP15]]
; CHECK-A55-NEXT: store i32 [[ADD21_EPIL]], ptr [[ARRAYIDX20_EPIL]], align 4
; CHECK-A55-NEXT: [[EPIL_ITER_CMP_NOT:%.*]] = icmp eq i64 [[XTRAITER]], 1
; CHECK-A55-NEXT: br i1 [[EPIL_ITER_CMP_NOT]], label [[FOR_END]], label [[FOR_BODY6_EPIL_1:%.*]]
; CHECK-A55: for.body6.epil.1:
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT_EPIL:%.*]] = add nuw nsw i64 [[INDVARS_IV_UNR]], 1
; CHECK-A55-NEXT: [[ARRAYIDX10_EPIL_1:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_NEXT_EPIL]]
; CHECK-A55-NEXT: [[TMP16:%.*]] = load i16, ptr [[ARRAYIDX10_EPIL_1]], align 2
; CHECK-A55-NEXT: [[CONV_EPIL_1:%.*]] = sext i16 [[TMP16]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_EPIL_1:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_NEXT_EPIL]]
; CHECK-A55-NEXT: [[TMP17:%.*]] = load i16, ptr [[ARRAYIDX14_EPIL_1]], align 2
; CHECK-A55-NEXT: [[CONV15_EPIL_1:%.*]] = sext i16 [[TMP17]] to i32
; CHECK-A55-NEXT: [[MUL16_EPIL_1:%.*]] = mul nsw i32 [[CONV15_EPIL_1]], [[CONV_EPIL_1]]
; CHECK-A55-NEXT: [[ARRAYIDX20_EPIL_1:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_NEXT_EPIL]]
; CHECK-A55-NEXT: [[TMP18:%.*]] = load i32, ptr [[ARRAYIDX20_EPIL_1]], align 4
; CHECK-A55-NEXT: [[ADD21_EPIL_1:%.*]] = add nsw i32 [[MUL16_EPIL_1]], [[TMP18]]
; CHECK-A55-NEXT: store i32 [[ADD21_EPIL_1]], ptr [[ARRAYIDX20_EPIL_1]], align 4
; CHECK-A55-NEXT: [[EPIL_ITER_CMP_1_NOT:%.*]] = icmp eq i64 [[XTRAITER]], 2
; CHECK-A55-NEXT: br i1 [[EPIL_ITER_CMP_1_NOT]], label [[FOR_END]], label [[FOR_BODY6_EPIL_2:%.*]]
; CHECK-A55: for.body6.epil.2:
; CHECK-A55-NEXT: [[INDVARS_IV_NEXT_EPIL_1:%.*]] = add nuw nsw i64 [[INDVARS_IV_UNR]], 2
; CHECK-A55-NEXT: [[ARRAYIDX10_EPIL_2:%.*]] = getelementptr inbounds i16, ptr [[ARG_2]], i64 [[INDVARS_IV_NEXT_EPIL_1]]
; CHECK-A55-NEXT: [[TMP19:%.*]] = load i16, ptr [[ARRAYIDX10_EPIL_2]], align 2
; CHECK-A55-NEXT: [[CONV_EPIL_2:%.*]] = sext i16 [[TMP19]] to i32
; CHECK-A55-NEXT: [[ARRAYIDX14_EPIL_2:%.*]] = getelementptr inbounds i16, ptr [[ARG_3]], i64 [[INDVARS_IV_NEXT_EPIL_1]]
; CHECK-A55-NEXT: [[TMP20:%.*]] = load i16, ptr [[ARRAYIDX14_EPIL_2]], align 2
; CHECK-A55-NEXT: [[CONV15_EPIL_2:%.*]] = sext i16 [[TMP20]] to i32
; CHECK-A55-NEXT: [[MUL16_EPIL_2:%.*]] = mul nsw i32 [[CONV15_EPIL_2]], [[CONV_EPIL_2]]
; CHECK-A55-NEXT: [[ARRAYIDX20_EPIL_2:%.*]] = getelementptr inbounds i32, ptr [[ARG_1]], i64 [[INDVARS_IV_NEXT_EPIL_1]]
; CHECK-A55-NEXT: [[TMP21:%.*]] = load i32, ptr [[ARRAYIDX20_EPIL_2]], align 4
; CHECK-A55-NEXT: [[ADD21_EPIL_2:%.*]] = add nsw i32 [[MUL16_EPIL_2]], [[TMP21]]
; CHECK-A55-NEXT: store i32 [[ADD21_EPIL_2]], ptr [[ARRAYIDX20_EPIL_2]], align 4
; CHECK-A55-NEXT: br label [[FOR_END]]
; CHECK-A55: for.end:
; CHECK-A55-NEXT: ret void
;
; CHECK-GENERIC-LABEL: @runtime_unroll_generic(
; CHECK-GENERIC-NEXT: entry:
; CHECK-GENERIC-NEXT: [[CMP52_NOT:%.*]] = icmp eq i32 [[ARG_0:%.*]], 0
; CHECK-GENERIC-NEXT: br i1 [[CMP52_NOT]], label [[FOR_END:%.*]], label [[FOR_BODY6_PREHEADER:%.*]]
; CHECK-GENERIC: for.body6.preheader:
; CHECK-GENERIC-NEXT: [[WIDE_TRIP_COUNT:%.*]] = zext i32 [[ARG_0]] to i64
; CHECK-GENERIC-NEXT: br label [[FOR_BODY6:%.*]]
; CHECK-GENERIC: for.body6:
; CHECK-GENERIC-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[FOR_BODY6_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY6]] ]
; CHECK-GENERIC-NEXT: [[ARRAYIDX10:%.*]] = getelementptr inbounds i16, ptr [[ARG_2:%.*]], i64 [[INDVARS_IV]]
; CHECK-GENERIC-NEXT: [[TMP0:%.*]] = load i16, ptr [[ARRAYIDX10]], align 2
; CHECK-GENERIC-NEXT: [[CONV:%.*]] = sext i16 [[TMP0]] to i32
; CHECK-GENERIC-NEXT: [[ARRAYIDX14:%.*]] = getelementptr inbounds i16, ptr [[ARG_3:%.*]], i64 [[INDVARS_IV]]
; CHECK-GENERIC-NEXT: [[TMP1:%.*]] = load i16, ptr [[ARRAYIDX14]], align 2
; CHECK-GENERIC-NEXT: [[CONV15:%.*]] = sext i16 [[TMP1]] to i32
; CHECK-GENERIC-NEXT: [[MUL16:%.*]] = mul nsw i32 [[CONV15]], [[CONV]]
; CHECK-GENERIC-NEXT: [[ARRAYIDX20:%.*]] = getelementptr inbounds i32, ptr [[ARG_1:%.*]], i64 [[INDVARS_IV]]
; CHECK-GENERIC-NEXT: [[TMP2:%.*]] = load i32, ptr [[ARRAYIDX20]], align 4
; CHECK-GENERIC-NEXT: [[ADD21:%.*]] = add nsw i32 [[MUL16]], [[TMP2]]
; CHECK-GENERIC-NEXT: store i32 [[ADD21]], ptr [[ARRAYIDX20]], align 4
; CHECK-GENERIC-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-GENERIC-NEXT: [[EXITCOND_NOT:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], [[WIDE_TRIP_COUNT]]
; CHECK-GENERIC-NEXT: br i1 [[EXITCOND_NOT]], label [[FOR_END]], label [[FOR_BODY6]], !llvm.loop [[LOOP0:![0-9]+]]
; CHECK-GENERIC: for.end:
; CHECK-GENERIC-NEXT: ret void
;
entry:
%arg_0.addr = alloca i32, align 4
%arg_1.addr = alloca ptr, align 8
%arg_2.addr = alloca ptr, align 8
%arg_3.addr = alloca ptr, align 8
%k = alloca i32, align 4
store i32 %arg_0, ptr %arg_0.addr, align 4
store ptr %arg_1, ptr %arg_1.addr, align 8
store ptr %arg_2, ptr %arg_2.addr, align 8
store ptr %arg_3, ptr %arg_3.addr, align 8
br label %for.cond
for.cond: ; preds = %entry
br label %for.body
for.body: ; preds = %for.cond
br label %for.cond1
for.cond1: ; preds = %for.body
br label %for.body3
for.body3: ; preds = %for.cond1
store i32 0, ptr %k, align 4
br label %for.cond4
for.cond4: ; preds = %for.inc, %for.body3
%0 = load i32, ptr %k, align 4
%1 = load i32, ptr %arg_0.addr, align 4
%cmp5 = icmp ult i32 %0, %1
br i1 %cmp5, label %for.body6, label %for.end
for.body6: ; preds = %for.cond4
%2 = load ptr, ptr %arg_2.addr, align 8
%idx.ext = zext i32 %0 to i64
%arrayidx10 = getelementptr inbounds i16, ptr %2, i64 %idx.ext
%3 = load i16, ptr %arrayidx10, align 2
%conv = sext i16 %3 to i32
%4 = load ptr, ptr %arg_3.addr, align 8
%arrayidx14 = getelementptr inbounds i16, ptr %4, i64 %idx.ext
%5 = load i16, ptr %arrayidx14, align 2
%conv15 = sext i16 %5 to i32
%mul16 = mul nsw i32 %conv, %conv15
%6 = load ptr, ptr %arg_1.addr, align 8
%arrayidx20 = getelementptr inbounds i32, ptr %6, i64 %idx.ext
%7 = load i32, ptr %arrayidx20, align 4
%add21 = add nsw i32 %7, %mul16
store i32 %add21, ptr %arrayidx20, align 4
br label %for.inc
for.inc: ; preds = %for.body6
%8 = load i32, ptr %k, align 4
%inc = add i32 %8, 1
store i32 %inc, ptr %k, align 4
br label %for.cond4, !llvm.loop !0
for.end: ; preds = %for.cond4
ret void
}
!0 = distinct !{!0, !1}
!1 = !{!"llvm.loop.mustprogress"}
|
