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
|
; RUN: llc < %s -mcpu=generic -mtriple=i686-- -mattr=+cmov,cx16 -verify-machineinstrs | FileCheck %s
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128"
define void @func(i32 %argc, ptr %argv) nounwind {
entry:
%argc.addr = alloca i32 ; <ptr> [#uses=1]
%argv.addr = alloca ptr ; <ptr> [#uses=1]
%val1 = alloca i32 ; <ptr> [#uses=2]
%val2 = alloca i32 ; <ptr> [#uses=15]
%andt = alloca i32 ; <ptr> [#uses=2]
%ort = alloca i32 ; <ptr> [#uses=2]
%xort = alloca i32 ; <ptr> [#uses=2]
%old = alloca i32 ; <ptr> [#uses=18]
%temp = alloca i32 ; <ptr> [#uses=2]
%temp64 = alloca i64
store i32 %argc, ptr %argc.addr
store ptr %argv, ptr %argv.addr
store i32 0, ptr %val1
store i32 31, ptr %val2
store i32 3855, ptr %andt
store i32 3855, ptr %ort
store i32 3855, ptr %xort
store i32 4, ptr %temp
%tmp = load i32, ptr %temp
; CHECK: lock
; CHECK: xaddl
%0 = atomicrmw add ptr %val1, i32 %tmp monotonic
store i32 %0, ptr %old
; CHECK: lock
; CHECK: xaddl
%1 = atomicrmw sub ptr %val2, i32 30 monotonic
store i32 %1, ptr %old
; CHECK: lock
; CHECK: xaddl
%2 = atomicrmw add ptr %val2, i32 1 monotonic
store i32 %2, ptr %old
; CHECK: lock
; CHECK: xaddl
%3 = atomicrmw sub ptr %val2, i32 1 monotonic
store i32 %3, ptr %old
; CHECK: andl
; CHECK: lock
; CHECK: cmpxchgl
%4 = atomicrmw and ptr %andt, i32 4080 monotonic
store i32 %4, ptr %old
; CHECK: orl
; CHECK: lock
; CHECK: cmpxchgl
%5 = atomicrmw or ptr %ort, i32 4080 monotonic
store i32 %5, ptr %old
; CHECK: xorl
; CHECK: lock
; CHECK: cmpxchgl
%6 = atomicrmw xor ptr %xort, i32 4080 monotonic
store i32 %6, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%7 = atomicrmw min ptr %val2, i32 16 monotonic
store i32 %7, ptr %old
%neg = sub i32 0, 1 ; <i32> [#uses=1]
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%8 = atomicrmw min ptr %val2, i32 %neg monotonic
store i32 %8, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%9 = atomicrmw max ptr %val2, i32 1 monotonic
store i32 %9, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%10 = atomicrmw max ptr %val2, i32 0 monotonic
store i32 %10, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%11 = atomicrmw umax ptr %val2, i32 65535 monotonic
store i32 %11, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%12 = atomicrmw umax ptr %val2, i32 10 monotonic
store i32 %12, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%13 = atomicrmw umin ptr %val2, i32 1 monotonic
store i32 %13, ptr %old
; CHECK: cmov
; CHECK: lock
; CHECK: cmpxchgl
%14 = atomicrmw umin ptr %val2, i32 10 monotonic
store i32 %14, ptr %old
; CHECK: xchgl %{{.*}}, {{.*}}(%esp)
%15 = atomicrmw xchg ptr %val2, i32 1976 monotonic
store i32 %15, ptr %old
%neg1 = sub i32 0, 10 ; <i32> [#uses=1]
; CHECK: lock
; CHECK: cmpxchgl
%pair16 = cmpxchg ptr %val2, i32 %neg1, i32 1 monotonic monotonic
%16 = extractvalue { i32, i1 } %pair16, 0
store i32 %16, ptr %old
; CHECK: lock
; CHECK: cmpxchgl
%pair17 = cmpxchg ptr %val2, i32 1976, i32 1 monotonic monotonic
%17 = extractvalue { i32, i1 } %pair17, 0
store i32 %17, ptr %old
; CHECK: movl [[R17atomic:.*]], %eax
; CHECK: movl %eax, %[[R17mask:[a-z]*]]
; CHECK: notl %[[R17mask]]
; CHECK: orl $-1402, %[[R17mask]]
; CHECK: lock
; CHECK: cmpxchgl %[[R17mask]], [[R17atomic]]
; CHECK: jne
; CHECK: movl %eax,
%18 = atomicrmw nand ptr %val2, i32 1401 monotonic
store i32 %18, ptr %old
; CHECK: notl
; CHECK: notl
; CHECK: orl $252645135
; CHECK: orl $252645135
; CHECK: lock
; CHECK: cmpxchg8b
%19 = atomicrmw nand ptr %temp64, i64 17361641481138401520 monotonic
store i64 %19, ptr %temp64
ret void
}
define void @test2(ptr addrspace(256) nocapture %P) nounwind {
entry:
; CHECK: lock
; CHECK: cmpxchgl %{{.*}}, %gs:(%{{.*}})
%pair0 = cmpxchg ptr addrspace(256) %P, i32 0, i32 1 monotonic monotonic
%0 = extractvalue { i32, i1 } %pair0, 0
ret void
}
|
