summaryrefslogtreecommitdiffstats
path: root/test/CodeGen/X86/stackmap.ll
blob: ed9558302848f9a50577ced727e88570f70d5180 (plain)
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
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
; RUN: llc < %s -mtriple=x86_64-apple-darwin -disable-fp-elim | FileCheck %s
;
; Note: Print verbose stackmaps using -debug-only=stackmaps.

; CHECK-LABEL:  .section  __LLVM_STACKMAPS,__llvm_stackmaps
; CHECK-NEXT:  __LLVM_StackMaps:
; CHECK-NEXT:   .long   0
; Num LargeConstants
; CHECK-NEXT:   .long   1
; CHECK-NEXT:   .quad   4294967296
; Num Callsites
; CHECK-NEXT:   .long   11

; Constant arguments
;
; CHECK-NEXT:   .long   1
; CHECK-NEXT:   .long   L{{.*}}-_constantargs
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .short  4
; SmallConstant
; CHECK-NEXT:   .byte   4
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .long   65535
; SmallConstant
; CHECK-NEXT:   .byte   4
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .long   65536
; SmallConstant
; CHECK-NEXT:   .byte   4
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .long   -1
; LargeConstant at index 0
; CHECK-NEXT:   .byte   5
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .long   0

define void @constantargs() {
entry:
  %0 = inttoptr i64 12345 to i8*
  tail call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 1, i32 15, i8* %0, i32 0, i64 65535, i64 65536, i64 4294967295, i64 4294967296)
  ret void
}

; Inline OSR Exit
;
; CHECK-NEXT:   .long   3
; CHECK-NEXT:   .long   L{{.*}}-_osrinline
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .short  2
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long  0
define void @osrinline(i64 %a, i64 %b) {
entry:
  ; Runtime void->void call.
  call void inttoptr (i64 -559038737 to void ()*)()
  ; Followed by inline OSR patchpoint with 12-byte shadow and 2 live vars.
  call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 3, i32 12, i64 %a, i64 %b)
  ret void
}

; Cold OSR Exit
;
; 2 live variables in register.
;
; CHECK-NEXT:   .long  4
; CHECK-NEXT:   .long   L{{.*}}-_osrcold
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .short  2
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long  0
define void @osrcold(i64 %a, i64 %b) {
entry:
  %test = icmp slt i64 %a, %b
  br i1 %test, label %ret, label %cold
cold:
  ; OSR patchpoint with 12-byte nop-slide and 2 live vars.
  %thunk = inttoptr i64 -559038737 to i8*
  call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 4, i32 15, i8* %thunk, i32 0, i64 %a, i64 %b)
  unreachable
ret:
  ret void
}

; Property Read
; CHECK-NEXT:  .long  5
; CHECK-NEXT:   .long   L{{.*}}-_propertyRead
; CHECK-NEXT:  .short  0
; CHECK-NEXT:  .short  0
;
; FIXME: There are currently no stackmap entries. After moving to
; AnyRegCC, we will have entries for the object and return value.
define i64 @propertyRead(i64* %obj) {
entry:
  %resolveRead = inttoptr i64 -559038737 to i8*
  %result = call i64 (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.i64(i32 5, i32 15, i8* %resolveRead, i32 1, i64* %obj)
  %add = add i64 %result, 3
  ret i64 %add
}

; Property Write
; CHECK-NEXT:  .long  6
; CHECK-NEXT:   .long   L{{.*}}-_propertyWrite
; CHECK-NEXT:  .short  0
; CHECK-NEXT:  .short  0
;
; FIXME: There are currently no stackmap entries. After moving to
; AnyRegCC, we will have entries for the object and return value.
define void @propertyWrite(i64 %dummy1, i64* %obj, i64 %dummy2, i64 %a) {
entry:
  %resolveWrite = inttoptr i64 -559038737 to i8*
  call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 6, i32 15, i8* %resolveWrite, i32 2, i64* %obj, i64 %a)
  ret void
}

; Void JS Call
;
; 2 live variables in registers.
;
; CHECK-NEXT:   .long  7
; CHECK-NEXT:   .long   L{{.*}}-_jsVoidCall
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .short  2
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
define void @jsVoidCall(i64 %dummy1, i64* %obj, i64 %arg, i64 %l1, i64 %l2) {
entry:
  %resolveCall = inttoptr i64 -559038737 to i8*
  call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 7, i32 15, i8* %resolveCall, i32 2, i64* %obj, i64 %arg, i64 %l1, i64 %l2)
  ret void
}

; i64 JS Call
;
; 2 live variables in registers.
;
; CHECK:        .long  8
; CHECK-NEXT:   .long   L{{.*}}-_jsIntCall
; CHECK-NEXT:   .short  0
; CHECK-NEXT:   .short  2
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
; CHECK-NEXT:   .byte   1
; CHECK-NEXT:   .byte   8
; CHECK-NEXT:   .short  {{[0-9]+}}
; CHECK-NEXT:   .long   0
define i64 @jsIntCall(i64 %dummy1, i64* %obj, i64 %arg, i64 %l1, i64 %l2) {
entry:
  %resolveCall = inttoptr i64 -559038737 to i8*
  %result = call i64 (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.i64(i32 8, i32 15, i8* %resolveCall, i32 2, i64* %obj, i64 %arg, i64 %l1, i64 %l2)
  %add = add i64 %result, 3
  ret i64 %add
}

; Spilled stack map values.
;
; Verify 17 stack map entries.
;
; CHECK:      .long 11
; CHECK-NEXT: .long L{{.*}}-_spilledValue
; CHECK-NEXT: .short 0
; CHECK-NEXT: .short 17
;
; Check that at least one is a spilled entry from RBP.
; Location: Indirect RBP + ...
; CHECK:      .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
define void @spilledValue(i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16) {
entry:
  call void (i32, i32, i8*, i32, ...)* @llvm.experimental.patchpoint.void(i32 11, i32 15, i8* null, i32 5, i64 %arg0, i64 %arg1, i64 %arg2, i64 %arg3, i64 %arg4, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16)
  ret void
}

; Spilled stack map values.
;
; Verify 17 stack map entries.
;
; CHECK:       .long 12
; CHECK-LABEL: .long L{{.*}}-_spilledStackMapValue
; CHECK-NEXT:  .short 0
; CHECK-NEXT:  .short 17
;
; Check that at least one is a spilled entry from RBP.
; Location: Indirect RBP + ...
; CHECK:      .byte 3
; CHECK-NEXT: .byte 8
; CHECK-NEXT: .short 6
define webkit_jscc void @spilledStackMapValue(i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16) {
entry:
  call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 12, i32 15, i64 %l0, i64 %l1, i64 %l2, i64 %l3, i64 %l4, i64 %l5, i64 %l6, i64 %l7, i64 %l8, i64 %l9, i64 %l10, i64 %l11, i64 %l12, i64 %l13, i64 %l14, i64 %l15, i64 %l16)
  ret void
}

; Spill a subregister stackmap operand.
;
; CHECK:       .long 13
; CHECK-LABEL: .long L{{.*}}-_spillSubReg
; CHECK-NEXT:  .short 0
; 4 locations
; CHECK-NEXT:  .short 1
;
; Check that the subregister operand is a 4-byte spill.
; Location: Indirect, 4-byte, RBP + ...
; CHECK:      .byte 3
; CHECK-NEXT: .byte 4
; CHECK-NEXT: .short 6
define void @spillSubReg(i64 %arg) #0 {
bb:
  br i1 undef, label %bb1, label %bb2

bb1:
  unreachable

bb2:
  %tmp = load i64* inttoptr (i64 140685446136880 to i64*)
  br i1 undef, label %bb16, label %bb17

bb16:
  unreachable

bb17:
  %tmp32 = trunc i64 %tmp to i32
  br i1 undef, label %bb60, label %bb61

bb60:
  tail call void asm sideeffect "nop", "~{ax},~{bx},~{cx},~{dx},~{bp},~{si},~{di},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind
  tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 13, i32 5, i32 %tmp32)
  unreachable

bb61:
  unreachable
}

; Map a single byte subregister. There is no DWARF register number, so
; we expect the register to be encoded with the proper size and spill offset. We don't know which
;
; CHECK:       .long 14
; CHECK-LABEL: .long L{{.*}}-_subRegOffset
; CHECK-NEXT:  .short 0
; 2 locations
; CHECK-NEXT:  .short 2
;
; Check that the subregister operands are 1-byte spills.
; Location 0: Register, 4-byte, AL
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .short 0
; CHECK-NEXT: .long 0
;
; Location 1: Register, 4-byte, BL
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .byte 1
; CHECK-NEXT: .short 3
; CHECK-NEXT: .long 0
define void @subRegOffset(i16 %arg) {
  %v = mul i16 %arg, 5
  %a0 = trunc i16 %v to i8
  tail call void asm sideeffect "nop", "~{bx}"() nounwind
  %arghi = lshr i16 %v, 8
  %a1 = trunc i16 %arghi to i8
  tail call void asm sideeffect "nop", "~{cx},~{dx},~{bp},~{si},~{di},~{r8},~{r9},~{r10},~{r11},~{r12},~{r13},~{r14},~{r15}"() nounwind
  tail call void (i32, i32, ...)* @llvm.experimental.stackmap(i32 14, i32 5, i8 %a0, i8 %a1)
  ret void
}

declare void @llvm.experimental.stackmap(i32, i32, ...)
declare void @llvm.experimental.patchpoint.void(i32, i32, i8*, i32, ...)
declare i64 @llvm.experimental.patchpoint.i64(i32, i32, i8*, i32, ...)