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
| ; REQUIRES: asserts
; RUN: opt < %s -S -debug -loop-vectorize -mcpu=slm 2>&1 | FileCheck %s --check-prefix=SLM
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define i8 @mul_i8(i8* %dataA, i8* %dataB, i32 %N) {
entry:
%cmp12 = icmp eq i32 %N, 0
br i1 %cmp12, label %for.cond.cleanup, label %for.body.preheader
for.body.preheader: ; preds = %entry
%wide.trip.count = zext i32 %N to i64
br label %for.body
for.cond.cleanup.loopexit: ; preds = %for.body
%phitmp = trunc i32 %add4 to i8
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
%acc.0.lcssa = phi i8 [ 0, %entry ], [ %phitmp, %for.cond.cleanup.loopexit ]
ret i8 %acc.0.lcssa
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
%acc.013 = phi i32 [ %add4, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i8, i8* %dataA, i64 %indvars.iv
%0 = load i8, i8* %arrayidx, align 1
%conv = sext i8 %0 to i32
%arrayidx2 = getelementptr inbounds i8, i8* %dataB, i64 %indvars.iv
%1 = load i8, i8* %arrayidx2, align 1
%conv3 = sext i8 %1 to i32
; sources of the mul is sext\sext from i8
; use pmullw\sext seq.
; SLM: cost of 3 for VF 4 {{.*}} mul nsw i32
%mul = mul nsw i32 %conv3, %conv
; sources of the mul is zext\sext from i8
; use pmulhw\pmullw\pshuf
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%conv4 = zext i8 %1 to i32
%mul2 = mul nsw i32 %conv4, %conv
%sum0 = add i32 %mul, %mul2
; sources of the mul is zext\zext from i8
; use pmullw\zext
; SLM: cost of 3 for VF 4 {{.*}} mul nsw i32
%conv5 = zext i8 %0 to i32
%mul3 = mul nsw i32 %conv5, %conv4
%sum1 = add i32 %sum0, %mul3
; sources of the mul is sext\-120
; use pmullw\sext
; SLM: cost of 3 for VF 4 {{.*}} mul nsw i32
%mul4 = mul nsw i32 -120, %conv3
%sum2 = add i32 %sum1, %mul4
; sources of the mul is sext\250
; use pmulhw\pmullw\pshuf
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%mul5 = mul nsw i32 250, %conv3
%sum3 = add i32 %sum2, %mul5
; sources of the mul is zext\-120
; use pmulhw\pmullw\pshuf
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%mul6 = mul nsw i32 -120, %conv4
%sum4 = add i32 %sum3, %mul6
; sources of the mul is zext\250
; use pmullw\zext
; SLM: cost of 3 for VF 4 {{.*}} mul nsw i32
%mul7 = mul nsw i32 250, %conv4
%sum5 = add i32 %sum4, %mul7
%add = add i32 %acc.013, 5
%add4 = add i32 %add, %sum5
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body
}
define i16 @mul_i16(i16* %dataA, i16* %dataB, i32 %N) {
entry:
%cmp12 = icmp eq i32 %N, 0
br i1 %cmp12, label %for.cond.cleanup, label %for.body.preheader
for.body.preheader: ; preds = %entry
%wide.trip.count = zext i32 %N to i64
br label %for.body
for.cond.cleanup.loopexit: ; preds = %for.body
%phitmp = trunc i32 %add4 to i16
br label %for.cond.cleanup
for.cond.cleanup: ; preds = %for.cond.cleanup.loopexit, %entry
%acc.0.lcssa = phi i16 [ 0, %entry ], [ %phitmp, %for.cond.cleanup.loopexit ]
ret i16 %acc.0.lcssa
for.body: ; preds = %for.body.preheader, %for.body
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ 0, %for.body.preheader ]
%acc.013 = phi i32 [ %add4, %for.body ], [ 0, %for.body.preheader ]
%arrayidx = getelementptr inbounds i16, i16* %dataA, i64 %indvars.iv
%0 = load i16, i16* %arrayidx, align 1
%conv = sext i16 %0 to i32
%arrayidx2 = getelementptr inbounds i16, i16* %dataB, i64 %indvars.iv
%1 = load i16, i16* %arrayidx2, align 1
%conv3 = sext i16 %1 to i32
; sources of the mul is sext\sext from i16
; use pmulhw\pmullw\pshuf seq.
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%mul = mul nsw i32 %conv3, %conv
; sources of the mul is zext\sext from i16
; use pmulld
; SLM: cost of 11 for VF 4 {{.*}} mul nsw i32
%conv4 = zext i16 %1 to i32
%mul2 = mul nsw i32 %conv4, %conv
%sum0 = add i32 %mul, %mul2
; sources of the mul is zext\zext from i16
; use pmulhw\pmullw\zext
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%conv5 = zext i16 %0 to i32
%mul3 = mul nsw i32 %conv5, %conv4
%sum1 = add i32 %sum0, %mul3
; sources of the mul is sext\-32000
; use pmulhw\pmullw\sext
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%mul4 = mul nsw i32 -32000, %conv3
%sum2 = add i32 %sum1, %mul4
; sources of the mul is sext\64000
; use pmulld
; SLM: cost of 11 for VF 4 {{.*}} mul nsw i32
%mul5 = mul nsw i32 64000, %conv3
%sum3 = add i32 %sum2, %mul5
; sources of the mul is zext\-32000
; use pmulld
; SLM: cost of 11 for VF 4 {{.*}} mul nsw i32
%mul6 = mul nsw i32 -32000, %conv4
%sum4 = add i32 %sum3, %mul6
; sources of the mul is zext\64000
; use pmulhw\pmullw\zext
; SLM: cost of 5 for VF 4 {{.*}} mul nsw i32
%mul7 = mul nsw i32 250, %conv4
%sum5 = add i32 %sum4, %mul7
%add = add i32 %acc.013, 5
%add4 = add i32 %add, %sum5
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.cond.cleanup.loopexit, label %for.body
}
|