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
|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=instcombine -S | FileCheck %s
define i8 @shl_add_nuw(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @shl_add_nuw(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 63
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = shl nuw i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, 63
%cnt = and i8 %cnt_in, 2
%r = shl i8 %amt, %cnt
ret i8 %r
}
define i8 @shl_add_nuw_fail(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @shl_add_nuw_fail(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 63
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 3
; CHECK-NEXT: [[R:%.*]] = shl i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, 63
%cnt = and i8 %cnt_in, 3
%r = shl i8 %amt, %cnt
ret i8 %r
}
define i8 @shl_add_nuw_and_nsw(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @shl_add_nuw_and_nsw(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], 31
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = shl nuw nsw i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, 31
%cnt = and i8 %cnt_in, 2
%r = shl i8 %amt, %cnt
ret i8 %r
}
define i8 @shl_add_nsw(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @shl_add_nsw(
; CHECK-NEXT: [[AMT:%.*]] = or i8 [[AMT_IN:%.*]], -32
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = shl nsw i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = or i8 %amt_in, 224
%cnt = and i8 %cnt_in, 2
%r = shl i8 %amt, %cnt
ret i8 %r
}
define i8 @shl_add_nsw_fail(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @shl_add_nsw_fail(
; CHECK-NEXT: [[AMT:%.*]] = or i8 [[AMT_IN:%.*]], -64
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = shl i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = or i8 %amt_in, 192
%cnt = and i8 %cnt_in, 2
%r = shl i8 %amt, %cnt
ret i8 %r
}
define i8 @lshr_add_exact(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @lshr_add_exact(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -4
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = lshr exact i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, -4
%cnt = and i8 %cnt_in, 2
%r = lshr i8 %amt, %cnt
ret i8 %r
}
define i8 @lshr_add_exact_fail(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @lshr_add_exact_fail(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -7
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = lshr i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, -7
%cnt = and i8 %cnt_in, 2
%r = lshr i8 %amt, %cnt
ret i8 %r
}
define i8 @ashr_add_exact(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @ashr_add_exact(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -14
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 1
; CHECK-NEXT: [[R:%.*]] = ashr exact i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, -14
%cnt = and i8 %cnt_in, 1
%r = ashr i8 %amt, %cnt
ret i8 %r
}
define i8 @ashr_add_exact_fail(i8 %amt_in, i8 %cnt_in) {
; CHECK-LABEL: @ashr_add_exact_fail(
; CHECK-NEXT: [[AMT:%.*]] = and i8 [[AMT_IN:%.*]], -14
; CHECK-NEXT: [[CNT:%.*]] = and i8 [[CNT_IN:%.*]], 2
; CHECK-NEXT: [[R:%.*]] = ashr i8 [[AMT]], [[CNT]]
; CHECK-NEXT: ret i8 [[R]]
;
%amt = and i8 %amt_in, -14
%cnt = and i8 %cnt_in, 2
%r = ashr i8 %amt, %cnt
ret i8 %r
}
|
