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
|
; RUN: rm -rf %t && split-file %s %t
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/no-ref.ll | FileCheck %s --check-prefixes=NOREF
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/no-ref.ll -o %t/no-ref.o
; RUN: llvm-objdump %t/no-ref.o -r | FileCheck %s --check-prefix=NOREF-OBJ
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/no-vnds.ll | FileCheck %s --check-prefixes=NOVNDS
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/no-vnds.ll -o %t/no-vnds.o
; RUN: llvm-objdump %t/no-vnds.o -r | FileCheck %s --check-prefix=NOVNDS-OBJ
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/with-vnds.ll | FileCheck %s --check-prefixes=WITHVNDS
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/with-vnds.ll -o %t/with-vnds.o
; RUN: llvm-objdump %t/with-vnds.o -tr | FileCheck %s --check-prefix=WITHVNDS-OBJ
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/zero-size-cnts-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-CNTS
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-cnts-section.ll -o %t/zero-size-cnts-section.o
; RUN: llvm-objdump %t/zero-size-cnts-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-CNTS-OBJ
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/zero-size-other-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-OTHER
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc64-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false < %t/zero-size-other-section.ll | FileCheck %s --check-prefixes=ZERO-SIZE-OTHER
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-other-section.ll -o %t/zero-size-other-section.o
; RUN: llvm-objdump %t/zero-size-other-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-OTHER-OBJ
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mattr=-altivec -mtriple powerpc64-ibm-aix-xcoff \
; RUN: -xcoff-traceback-table=false --filetype=obj < %t/zero-size-other-section.ll -o %t/zero-size-other-section.o
; RUN: llvm-objdump %t/zero-size-other-section.o -tr | FileCheck %s --check-prefix=ZERO-SIZE-OTHER-OBJ
;--- no-ref.ll
; The absence of a __llvm_prf_cnts section should stop generating the .refs.
;
target datalayout = "E-m:a-p:32:32-i64:64-n32"
target triple = "powerpc-ibm-aix7.2.0.0"
@__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8
@__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1
@llvm.used = appending global [2 x ptr]
[ptr @__profd_main,
ptr @__llvm_prf_nm], section "llvm.metadata"
define i32 @main() #0 {
entry:
ret i32 1
}
; NOREF-NOT: .ref __llvm_prf_data
; NOREF-NOT: .ref __llvm_prf_names
; NOREF-NOT: .ref __llvm_prf_vnds
; NOREF-OBJ-NOT: R_REF __llvm_prf_data
; NOREF-OBJ-NOT: R_REF __llvm_prf_names
; NOREF-OBJ-NOT: R_REF __llvm_prf_vnds
;--- no-vnds.ll
; This is the most common case. When -fprofile-generate is used and there exists executable code, we generate the __llvm_prf_cnts, __llvm_prf_data, and __llvm_prf_names sections.
;
target datalayout = "E-m:a-p:32:32-i64:64-n32"
target triple = "powerpc-ibm-aix7.2.0.0"
@__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
@__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8
@__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1
@llvm.used = appending global [3 x ptr]
[ptr @__profc_main,
ptr @__profd_main,
ptr @__llvm_prf_nm], section "llvm.metadata"
define i32 @main() #0 {
entry:
ret i32 1
}
; There will be two __llvm_prf_cnts .csects, one to represent the actual csect
; that holds @__profc_main, and one generated to hold the .ref directives. In
; XCOFF, a csect can be defined in pieces, so this is is legal assembly.
;
; NOVNDS: .csect __llvm_prf_cnts[RW],3
; NOVNDS: .csect __llvm_prf_cnts[RW],3
; NOVNDS-NEXT: .ref __llvm_prf_data[RW]
; NOVNDS-NEXT: .ref __llvm_prf_names[RO]
; NOVNDS-NOT: .ref __llvm_prf_vnds
; NOVNDS-OBJ: 00000000 R_REF __llvm_prf_data
; NOVNDS-OBJ: 00000000 R_REF __llvm_prf_names
; NOVNDS-OBJ-NOT: R_REF __llvm_prf_vnds
;--- with-vnds.ll
; When value profiling is needed, the PGO instrumentation generates variables in the __llvm_prf_vnds section, so we generate a .ref for them too.
;
@__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
@__profd_main = private global i64 zeroinitializer, section "__llvm_prf_data", align 8
@__llvm_prf_nm = private constant [6 x i8] c"\04\00main", section "__llvm_prf_names", align 1
@__llvm_prf_vnodes = private global [10 x { i64, i64, ptr }] zeroinitializer, section "__llvm_prf_vnds"
@llvm.used = appending global [4 x ptr]
[ptr @__profc_main,
ptr @__profd_main,
ptr @__llvm_prf_nm,
ptr @__llvm_prf_vnodes], section "llvm.metadata"
define i32 @main() #0 {
entry:
ret i32 1
}
; WITHVNDS: .csect __llvm_prf_cnts[RW],3
; WITHVNDS: .csect __llvm_prf_cnts[RW],3
; WITHVNDS-NEXT: .ref __llvm_prf_data[RW]
; WITHVNDS-NEXT: .ref __llvm_prf_names[RO]
; WITHVNDS-NEXT: .ref __llvm_prf_vnds[RW]
; WITHVNDS-OBJ: SYMBOL TABLE:
; WITHVNDS-OBJ-NEXT: 00000000 df *DEBUG* 00000000 .file
; WITHVNDS-OBJ-NEXT: 00000000 l .text 00000008
; WITHVNDS-OBJ-NEXT: 00000000 g F .text (csect: ) 00000000 .main
; WITHVNDS-OBJ-NEXT: 00000008 l .text 00000006 __llvm_prf_names
; WITHVNDS-OBJ-NEXT: 00000010 l O .data 00000008 __llvm_prf_cnts
; WITHVNDS-OBJ-NEXT: 00000018 l O .data 00000008 __llvm_prf_data
; WITHVNDS-OBJ-NEXT: 00000020 l O .data 000000f0 __llvm_prf_vnds
; WITHVNDS-OBJ-NEXT: 00000110 g O .data 0000000c main
; WITHVNDS-OBJ-NEXT: 0000011c l .data 00000000 TOC
; WITHVNDS-OBJ: RELOCATION RECORDS FOR [.data]:
; WITHVNDS-OBJ-NEXT: OFFSET TYPE VALUE
; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_data
; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_names
; WITHVNDS-OBJ-NEXT: 00000000 R_REF __llvm_prf_vnds
; WITHVNDS-OBJ-NEXT: 00000100 R_POS .main
; WITHVNDS-OBJ-NEXT: 00000104 R_POS TOC
;--- zero-size-cnts-section.ll
; If __llvm_prf_cnts is of zero size, do not generate the .ref directive.
; The size of the other sections does not matter.
@dummy_cnts = private global [0 x i32] zeroinitializer, section "__llvm_prf_cnts", align 4
@dummy_data = private global [1 x i64] zeroinitializer, section "__llvm_prf_data", align 8
@dummy_name = private constant [0 x i32] zeroinitializer, section "__llvm_prf_names", align 4
@llvm.used = appending global [3 x ptr]
[ptr @dummy_cnts,
ptr @dummy_data,
ptr @dummy_name], section "llvm.metadata"
define i32 @main() #0 {
entry:
ret i32 1
}
; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_data[RW]
; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_names[RO]
; ZERO-SIZE-CNTS-NOT: .ref __llvm_prf_vnds
; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_data
; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_names
; ZERO-SIZE-CNTS-OBJ-NOT: R_REF __llvm_prf_vnds
;--- zero-size-other-section.ll
; If __llvm_prf_cnts is of non-zero size, generate the .ref directive even if other sections
; are zero-sized;
@__profc_main = private global [1 x i64] zeroinitializer, section "__llvm_prf_cnts", align 8
@__profd_main = private global [0 x i64] zeroinitializer, section "__llvm_prf_data", align 8
@__llvm_prf_nm = private constant [0 x i8] zeroinitializer, section "__llvm_prf_names", align 1
@__llvm_prf_vnodes = private global [0 x { i64, i64, ptr }] zeroinitializer, section "__llvm_prf_vnds"
@llvm.used = appending global [4 x ptr]
[ptr @__profc_main,
ptr @__profd_main,
ptr @__llvm_prf_nm,
ptr @__llvm_prf_vnodes], section "llvm.metadata"
define i32 @main() #0 {
entry:
ret i32 1
}
; ZERO-SIZE-OTHER: .csect __llvm_prf_cnts[RW],3
; ZERO-SIZE-OTHER: .csect __llvm_prf_cnts[RW],3
; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_data[RW]
; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_names[RO]
; ZERO-SIZE-OTHER-NEXT: .ref __llvm_prf_vnds[RW]
; ZERO-SIZE-OTHER-OBJ: R_REF __llvm_prf_data
; ZERO-SIZE-OTHER-OBJ-NEXT: R_REF __llvm_prf_names
; ZERO-SIZE-OTHER-OBJ-NEXT: R_REF __llvm_prf_vnds
|
