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
|
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -O0 -mtriple=mipsel-unknown-linux-gnu -mcpu=mips32r2 -target-abi=o32 < %s -filetype=asm -o - \
; RUN: | FileCheck -check-prefixes=O32 %s
; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n32 < %s -filetype=asm -o - \
; RUN: | FileCheck -check-prefixes=N32 %s
; RUN: llc -O0 -mtriple=mips64el-unknown-linux-gnu -mcpu=mips64r2 -target-abi=n64 < %s -filetype=asm -o - \
; RUN: | FileCheck -check-prefixes=N64 %s
@sym = external global ptr
define void @foo(i32 %new, i32 %old) {
; O32-LABEL: foo:
; O32: # %bb.0: # %entry
; O32-NEXT: lui $1, %hi(sym)
; O32-NEXT: lw $3, %lo(sym)($1)
; O32-NEXT: sync
; O32-NEXT: $BB0_1: # %entry
; O32-NEXT: # =>This Inner Loop Header: Depth=1
; O32-NEXT: ll $1, 0($3)
; O32-NEXT: bne $1, $4, $BB0_3
; O32-NEXT: nop
; O32-NEXT: # %bb.2: # %entry
; O32-NEXT: # in Loop: Header=BB0_1 Depth=1
; O32-NEXT: move $2, $5
; O32-NEXT: sc $2, 0($3)
; O32-NEXT: beqz $2, $BB0_1
; O32-NEXT: nop
; O32-NEXT: $BB0_3: # %entry
; O32-NEXT: sync
; O32-NEXT: jr $ra
; O32-NEXT: nop
;
; N32-LABEL: foo:
; N32: # %bb.0: # %entry
; N32-NEXT: move $1, $5
; N32-NEXT: sll $5, $1, 0
; N32-NEXT: move $1, $4
; N32-NEXT: sll $4, $1, 0
; N32-NEXT: lui $1, %hi(sym)
; N32-NEXT: lw $3, %lo(sym)($1)
; N32-NEXT: sync
; N32-NEXT: .LBB0_1: # %entry
; N32-NEXT: # =>This Inner Loop Header: Depth=1
; N32-NEXT: ll $1, 0($3)
; N32-NEXT: bne $1, $4, .LBB0_3
; N32-NEXT: nop
; N32-NEXT: # %bb.2: # %entry
; N32-NEXT: # in Loop: Header=BB0_1 Depth=1
; N32-NEXT: move $2, $5
; N32-NEXT: sc $2, 0($3)
; N32-NEXT: beqz $2, .LBB0_1
; N32-NEXT: nop
; N32-NEXT: .LBB0_3: # %entry
; N32-NEXT: sync
; N32-NEXT: jr $ra
; N32-NEXT: nop
;
; N64-LABEL: foo:
; N64: # %bb.0: # %entry
; N64-NEXT: move $1, $5
; N64-NEXT: sll $5, $1, 0
; N64-NEXT: move $1, $4
; N64-NEXT: sll $4, $1, 0
; N64-NEXT: lui $1, %highest(sym)
; N64-NEXT: daddiu $1, $1, %higher(sym)
; N64-NEXT: dsll $1, $1, 16
; N64-NEXT: daddiu $1, $1, %hi(sym)
; N64-NEXT: dsll $1, $1, 16
; N64-NEXT: ld $3, %lo(sym)($1)
; N64-NEXT: sync
; N64-NEXT: .LBB0_1: # %entry
; N64-NEXT: # =>This Inner Loop Header: Depth=1
; N64-NEXT: ll $1, 0($3)
; N64-NEXT: bne $1, $4, .LBB0_3
; N64-NEXT: nop
; N64-NEXT: # %bb.2: # %entry
; N64-NEXT: # in Loop: Header=BB0_1 Depth=1
; N64-NEXT: move $2, $5
; N64-NEXT: sc $2, 0($3)
; N64-NEXT: beqz $2, .LBB0_1
; N64-NEXT: nop
; N64-NEXT: .LBB0_3: # %entry
; N64-NEXT: sync
; N64-NEXT: jr $ra
; N64-NEXT: nop
entry:
%0 = load ptr, ptr @sym
cmpxchg ptr %0, i32 %new, i32 %old seq_cst seq_cst
ret void
}
|
