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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
|
# RUN: llc -march=mips64 -target-abi n64 -start-before=finalize-isel \
# RUN: -stop-after=finalize-isel -relocation-model=static -o /dev/null %s
# A simple test to show that we can parse the target specific flags: highest,
# higher, hi, lo, tprel-lo, tprel-hi, gpoff-hi, gpoff-lo, gottprel.
--- |
@v = global i32 0, align 4
@k = thread_local global i32 0, align 4
@j = external thread_local global i32, align 4
@__tls_guard = internal thread_local global i1 false, align 1
declare i32 @_Z1gi(i32 signext)
declare extern_weak void @_ZTH1j()
define i32 @_Z2k1i(i32 signext %asd) {
entry:
%call = tail call i32 @_Z1gi(i32 signext %asd)
%add = add nsw i32 %call, %asd
%0 = load i32, i32* @v, align 4
%add1 = add nsw i32 %add, %0
%.b.i.i = load i1, i1* @__tls_guard, align 1
br i1 %.b.i.i, label %entry._ZTW1k.exit_crit_edge, label %init.i.i
entry._ZTW1k.exit_crit_edge:
%.pre = load i32, i32* @k, align 4
br label %_ZTW1k.exit
init.i.i:
store i1 true, i1* @__tls_guard, align 1
%call.i.i.i = tail call i32 @_Z1gi(i32 signext 3)
store i32 %call.i.i.i, i32* @k, align 4
br label %_ZTW1k.exit
_ZTW1k.exit:
%1 = phi i32 [ %.pre, %entry._ZTW1k.exit_crit_edge ], [ %call.i.i.i, %init.i.i ]
%add2 = add nsw i32 %add1, %1
br i1 icmp ne (void ()* @_ZTH1j, void ()* null), label %2, label %_ZTW1j.exit
; <label>:2:
tail call void @_ZTH1j()
br label %_ZTW1j.exit
_ZTW1j.exit:
%3 = load i32, i32* @j, align 4
%add3 = add nsw i32 %add2, %3
ret i32 %add3
}
...
---
name: _Z2k1i
alignment: 8
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
tracksRegLiveness: true
registers:
- { id: 0, class: gpr32, preferred-register: '' }
- { id: 1, class: gpr32, preferred-register: '' }
- { id: 2, class: gpr32, preferred-register: '' }
- { id: 3, class: gpr32, preferred-register: '' }
- { id: 4, class: gpr32, preferred-register: '' }
- { id: 5, class: gpr64, preferred-register: '' }
- { id: 6, class: gpr32, preferred-register: '' }
- { id: 7, class: gpr32, preferred-register: '' }
- { id: 8, class: gpr32, preferred-register: '' }
- { id: 9, class: gpr64, preferred-register: '' }
- { id: 10, class: gpr64, preferred-register: '' }
- { id: 11, class: gpr64, preferred-register: '' }
- { id: 12, class: gpr64, preferred-register: '' }
- { id: 13, class: gpr64, preferred-register: '' }
- { id: 14, class: gpr32, preferred-register: '' }
- { id: 15, class: gpr64, preferred-register: '' }
- { id: 16, class: gpr64, preferred-register: '' }
- { id: 17, class: gpr64, preferred-register: '' }
- { id: 18, class: gpr64, preferred-register: '' }
- { id: 19, class: gpr64, preferred-register: '' }
- { id: 20, class: gpr32, preferred-register: '' }
- { id: 21, class: gpr64, preferred-register: '' }
- { id: 22, class: gpr64, preferred-register: '' }
- { id: 23, class: gpr64, preferred-register: '' }
- { id: 24, class: gpr64, preferred-register: '' }
- { id: 25, class: gpr64, preferred-register: '' }
- { id: 26, class: gpr32, preferred-register: '' }
- { id: 27, class: gpr64, preferred-register: '' }
- { id: 28, class: gpr64, preferred-register: '' }
- { id: 29, class: gpr64, preferred-register: '' }
- { id: 30, class: gpr64, preferred-register: '' }
- { id: 31, class: gpr32, preferred-register: '' }
- { id: 32, class: gpr64, preferred-register: '' }
- { id: 33, class: gpr64, preferred-register: '' }
- { id: 34, class: gpr64, preferred-register: '' }
- { id: 35, class: gpr64, preferred-register: '' }
- { id: 36, class: gpr64, preferred-register: '' }
- { id: 37, class: gpr64, preferred-register: '' }
- { id: 38, class: gpr64, preferred-register: '' }
- { id: 39, class: gpr64, preferred-register: '' }
- { id: 40, class: gpr64, preferred-register: '' }
- { id: 41, class: gpr64, preferred-register: '' }
- { id: 42, class: gpr64, preferred-register: '' }
- { id: 43, class: gpr64, preferred-register: '' }
- { id: 44, class: gpr64, preferred-register: '' }
- { id: 45, class: gpr64, preferred-register: '' }
- { id: 46, class: gpr64, preferred-register: '' }
- { id: 47, class: gpr64, preferred-register: '' }
- { id: 48, class: gpr32, preferred-register: '' }
- { id: 49, class: gpr32, preferred-register: '' }
- { id: 50, class: gpr64, preferred-register: '' }
- { id: 51, class: gpr64, preferred-register: '' }
liveins:
- { reg: '$a0_64', virtual-reg: '%5' }
- { reg: '$t9_64', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 1
adjustsStack: false
hasCalls: true
stackProtector: ''
maxCallFrameSize: 4294967295
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
savePoint: ''
restorePoint: ''
fixedStack:
stack:
constants:
body: |
bb.0.entry:
successors: %bb.1.entry._ZTW1k.exit_crit_edge(0x7fe00000), %bb.2.init.i.i(0x00200000)
liveins: $a0_64, $t9_64
%50 = LUi64 target-flags(mips-gpoff-hi) @_Z2k1i
%51 = DADDu %50, $t9_64
%43 = DADDiu %51, target-flags(mips-gpoff-lo) @_Z2k1i
%5 = COPY $a0_64
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
%6 = COPY %5.sub_32
$a0_64 = COPY %5
JAL @_Z1gi, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
%7 = COPY $v0
%8 = ADDu %7, killed %6
%9 = LUi64 target-flags(mips-highest) @v
%10 = DADDiu killed %9, target-flags(mips-higher) @v
%11 = DSLL killed %10, 16
%12 = DADDiu killed %11, target-flags(mips-abs-hi) @v
%13 = DSLL killed %12, 16
%14 = LW killed %13, target-flags(mips-abs-lo) @v :: (dereferenceable load 4 from @v)
%0 = ADDu killed %8, killed %14
%15 = LUi64 target-flags(mips-tprel-hi) @__tls_guard
%16 = DADDiu killed %15, target-flags(mips-tprel-lo) @__tls_guard
%17 = RDHWR64 $hwr29, 0
$v1_64 = COPY %17
%18 = COPY $v1_64
%19 = DADDu %18, killed %16
%20 = LBu killed %19, 0 :: (dereferenceable load 1 from @__tls_guard)
BEQ killed %20, $zero, %bb.2.init.i.i, implicit-def dead $at
J %bb.1.entry._ZTW1k.exit_crit_edge, implicit-def dead $at
bb.1.entry._ZTW1k.exit_crit_edge:
successors: %bb.3._ZTW1k.exit(0x80000000)
%32 = LUi64 target-flags(mips-tprel-hi) @k
%33 = DADDiu killed %32, target-flags(mips-tprel-lo) @k
%34 = RDHWR64 $hwr29, 0
$v1_64 = COPY %34
%35 = COPY $v1_64
%36 = DADDu %35, killed %33
%1 = LW killed %36, 0 :: (dereferenceable load 4 from @k)
J %bb.3._ZTW1k.exit, implicit-def dead $at
bb.2.init.i.i:
successors: %bb.3._ZTW1k.exit(0x80000000)
%21 = LUi64 target-flags(mips-tprel-hi) @__tls_guard
%22 = DADDiu killed %21, target-flags(mips-tprel-lo) @__tls_guard
%23 = RDHWR64 $hwr29, 0
$v1_64 = COPY %23
%24 = COPY $v1_64
%25 = DADDu %24, killed %22
%26 = ADDiu $zero, 1
SB killed %26, killed %25, 0 :: (store 1 into @__tls_guard)
%27 = LUi64 target-flags(mips-tprel-hi) @k
%28 = DADDiu killed %27, target-flags(mips-tprel-lo) @k
%29 = DADDu %24, killed %28
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
%30 = DADDiu $zero_64, 3
$a0_64 = COPY %30
JAL @_Z1gi, csr_n64, implicit-def dead $ra, implicit $a0_64, implicit-def $sp, implicit-def $v0
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
%31 = COPY $v0
SW %31, killed %29, 0 :: (store 4 into @k)
%2 = COPY %31
bb.3._ZTW1k.exit:
successors: %bb.4(0x40000000), %bb.5._ZTW1j.exit(0x40000000)
%3 = PHI %2, %bb.2.init.i.i, %1, %bb.1.entry._ZTW1k.exit_crit_edge
%4 = ADDu %0, %3
%37 = LUi64 target-flags(mips-highest) @_ZTH1j
%38 = DADDiu killed %37, target-flags(mips-higher) @_ZTH1j
%39 = DSLL killed %38, 16
%40 = DADDiu killed %39, target-flags(mips-abs-hi) @_ZTH1j
%41 = DSLL killed %40, 16
%42 = DADDiu killed %41, target-flags(mips-abs-lo) @_ZTH1j
BEQ64 killed %42, $zero_64, %bb.5._ZTW1j.exit, implicit-def dead $at
J %bb.4, implicit-def dead $at
bb.4 (%ir-block.2):
successors: %bb.5._ZTW1j.exit(0x80000000)
ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp
JAL @_ZTH1j, csr_n64, implicit-def dead $ra, implicit-def $sp
ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp
bb.5._ZTW1j.exit:
%44 = RDHWR64 $hwr29, 0
$v1_64 = COPY %44
%45 = LD %43, target-flags(mips-gottprel) @j :: (load 8)
%46 = COPY $v1_64
%47 = DADDu %46, killed %45
%48 = LW killed %47, 0 :: (dereferenceable load 4 from @j)
%49 = ADDu %4, killed %48
$v0 = COPY %49
RetRA implicit $v0
...
|
