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
|
; RUN: llc < %s -march=ppc64 | FileCheck %s
; RUN: llc < %s -march=ppc64 -mcpu=pwr7 | FileCheck %s
; RUN: llc < %s -march=ppc64 -mcpu=pwr8 | FileCheck %s -check-prefix=CHECK-P8U
define i64 @exchange_and_add(i64* %mem, i64 %val) nounwind {
; CHECK-LABEL: exchange_and_add:
; CHECK: ldarx
%tmp = atomicrmw add i64* %mem, i64 %val monotonic
; CHECK: stdcx.
ret i64 %tmp
}
define i8 @exchange_and_add8(i8* %mem, i8 %val) nounwind {
; CHECK-LABEL: exchange_and_add8:
; CHECK-P8U: lbarx
%tmp = atomicrmw add i8* %mem, i8 %val monotonic
; CHECK-P8U: stbcx.
ret i8 %tmp
}
define i16 @exchange_and_add16(i16* %mem, i16 %val) nounwind {
; CHECK-LABEL: exchange_and_add16:
; CHECK-P8U: lharx
%tmp = atomicrmw add i16* %mem, i16 %val monotonic
; CHECK-P8U: sthcx.
ret i16 %tmp
}
define i64 @exchange_and_cmp(i64* %mem) nounwind {
; CHECK-LABEL: exchange_and_cmp:
; CHECK: ldarx
%tmppair = cmpxchg i64* %mem, i64 0, i64 1 monotonic monotonic
%tmp = extractvalue { i64, i1 } %tmppair, 0
; CHECK: stdcx.
; CHECK: stdcx.
ret i64 %tmp
}
define i8 @exchange_and_cmp8(i8* %mem) nounwind {
; CHECK-LABEL: exchange_and_cmp8:
; CHECK-P8U: lbarx
%tmppair = cmpxchg i8* %mem, i8 0, i8 1 monotonic monotonic
%tmp = extractvalue { i8, i1 } %tmppair, 0
; CHECK-P8U: stbcx.
; CHECK-P8U: stbcx.
ret i8 %tmp
}
define i16 @exchange_and_cmp16(i16* %mem) nounwind {
; CHECK-LABEL: exchange_and_cmp16:
; CHECK-P8U: lharx
%tmppair = cmpxchg i16* %mem, i16 0, i16 1 monotonic monotonic
%tmp = extractvalue { i16, i1 } %tmppair, 0
; CHECK-P8U: sthcx.
; CHECK-P8U: sthcx.
ret i16 %tmp
}
define i64 @exchange(i64* %mem, i64 %val) nounwind {
; CHECK-LABEL: exchange:
; CHECK: ldarx
%tmp = atomicrmw xchg i64* %mem, i64 1 monotonic
; CHECK: stdcx.
ret i64 %tmp
}
define i8 @exchange8(i8* %mem, i8 %val) nounwind {
; CHECK-LABEL: exchange8:
; CHECK-P8U: lbarx
%tmp = atomicrmw xchg i8* %mem, i8 1 monotonic
; CHECK-P8U: stbcx.
ret i8 %tmp
}
define i16 @exchange16(i16* %mem, i16 %val) nounwind {
; CHECK-LABEL: exchange16:
; CHECK-P8U: lharx
%tmp = atomicrmw xchg i16* %mem, i16 1 monotonic
; CHECK-P8U: sthcx.
ret i16 %tmp
}
define void @atomic_store(i64* %mem, i64 %val) nounwind {
entry:
; CHECK: @atomic_store
store atomic i64 %val, i64* %mem release, align 64
; CHECK: sync 1
; CHECK-NOT: stdcx
; CHECK: std
ret void
}
define i64 @atomic_load(i64* %mem) nounwind {
entry:
; CHECK: @atomic_load
%tmp = load atomic i64, i64* %mem acquire, align 64
; CHECK-NOT: ldarx
; CHECK: ld
; CHECK: sync 1
ret i64 %tmp
}
|
