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
|
;; Test behavior of -optimize-hot-cold-new and related options.
;; Check that we don't get hot/cold new calls without enabling it explicitly.
; RUN: opt < %s -passes=instcombine -S | FileCheck %s --implicit-check-not=hot_cold_t
;; First check with the default cold and hot hint values (255 = -2).
; RUN: opt < %s -passes=instcombine -optimize-hot-cold-new -S | FileCheck %s --check-prefix=HOTCOLD -DCOLD=1 -DHOT=-2
;; Next check with the non-default cold and hot hint values (200 =-56).
; RUN: opt < %s -passes=instcombine -optimize-hot-cold-new -cold-new-hint-value=5 -hot-new-hint-value=200 -S | FileCheck %s --check-prefix=HOTCOLD -DCOLD=5 -DHOT=-56
;; Make sure that values not in 0..255 are flagged with an error
; RUN: not opt < %s -passes=instcombine -optimize-hot-cold-new -cold-new-hint-value=256 -S 2>&1 | FileCheck %s --check-prefix=ERROR
; RUN: not opt < %s -passes=instcombine -optimize-hot-cold-new -hot-new-hint-value=5000 -S 2>&1 | FileCheck %s --check-prefix=ERROR
; ERROR: value must be in the range [0, 255]!
;; Check that operator new(unsigned long) converted to
;; operator new(unsigned long, __hot_cold_t) with a hot or cold attribute.
; HOTCOLD-LABEL: @new()
define void @new() {
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_Znwm12__hot_cold_t(i64 10, i8 [[COLD]])
%call = call ptr @_Znwm(i64 10) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_Znwm(i64 10)
%call1 = call ptr @_Znwm(i64 10) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_Znwm12__hot_cold_t(i64 10, i8 [[HOT]])
%call2 = call ptr @_Znwm(i64 10) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new(unsigned long, std::align_val_t) converted to
;; operator new(unsigned long, std::align_val_t, __hot_cold_t) with a hot or
;; cold attribute.
; HOTCOLD-LABEL: @new_align()
define void @new_align() {
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnwmSt11align_val_t12__hot_cold_t(i64 10, i64 8, i8 [[COLD]])
%call = call ptr @_ZnwmSt11align_val_t(i64 10, i64 8) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnwmSt11align_val_t(i64 10, i64 8)
%call1 = call ptr @_ZnwmSt11align_val_t(i64 10, i64 8) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnwmSt11align_val_t12__hot_cold_t(i64 10, i64 8, i8 [[HOT]])
%call2 = call ptr @_ZnwmSt11align_val_t(i64 10, i64 8) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new(unsigned long, const std::nothrow_t&) converted to
;; operator new(unsigned long, const std::nothrow_t&, __hot_cold_t) with a hot or
;; cold attribute.
; HOTCOLD-LABEL: @new_nothrow()
define void @new_nothrow() {
%nt = alloca i8
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnwmRKSt9nothrow_t12__hot_cold_t(i64 10, ptr nonnull %nt, i8 [[COLD]])
%call = call ptr @_ZnwmRKSt9nothrow_t(i64 10, ptr %nt) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnwmRKSt9nothrow_t(i64 10, ptr nonnull %nt)
%call1 = call ptr @_ZnwmRKSt9nothrow_t(i64 10, ptr %nt) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnwmRKSt9nothrow_t12__hot_cold_t(i64 10, ptr nonnull %nt, i8 [[HOT]])
%call2 = call ptr @_ZnwmRKSt9nothrow_t(i64 10, ptr %nt) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new(unsigned long, std::align_val_t, const std::nothrow_t&)
;; converted to
;; operator new(unsigned long, std::align_val_t, const std::nothrow_t&, __hot_cold_t)
;; with a hot or cold attribute.
; HOTCOLD-LABEL: @new_align_nothrow()
define void @new_align_nothrow() {
%nt = alloca i8
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnwmSt11align_val_tRKSt9nothrow_t12__hot_cold_t(i64 10, i64 8, ptr nonnull %nt, i8 [[COLD]])
%call = call ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr nonnull %nt)
%call1 = call ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnwmSt11align_val_tRKSt9nothrow_t12__hot_cold_t(i64 10, i64 8, ptr nonnull %nt, i8 [[HOT]])
%call2 = call ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new[](unsigned long) converted to
;; operator new[](unsigned long, __hot_cold_t) with a hot or cold attribute.
; HOTCOLD-LABEL: @array_new()
define void @array_new() {
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_Znam12__hot_cold_t(i64 10, i8 [[COLD]])
%call = call ptr @_Znam(i64 10) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_Znam(i64 10)
%call1 = call ptr @_Znam(i64 10) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_Znam12__hot_cold_t(i64 10, i8 [[HOT]])
%call2 = call ptr @_Znam(i64 10) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new[](unsigned long, std::align_val_t) converted to
;; operator new[](unsigned long, std::align_val_t, __hot_cold_t) with a hot or
;; cold attribute.
; HOTCOLD-LABEL: @array_new_align()
define void @array_new_align() {
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnamSt11align_val_t12__hot_cold_t(i64 10, i64 8, i8 [[COLD]])
%call = call ptr @_ZnamSt11align_val_t(i64 10, i64 8) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnamSt11align_val_t(i64 10, i64 8)
%call1 = call ptr @_ZnamSt11align_val_t(i64 10, i64 8) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnamSt11align_val_t12__hot_cold_t(i64 10, i64 8, i8 [[HOT]])
%call2 = call ptr @_ZnamSt11align_val_t(i64 10, i64 8) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new[](unsigned long, const std::nothrow_t&) converted to
;; operator new[](unsigned long, const std::nothrow_t&, __hot_cold_t) with a hot or
;; cold attribute.
; HOTCOLD-LABEL: @array_new_nothrow()
define void @array_new_nothrow() {
%nt = alloca i8
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnamRKSt9nothrow_t12__hot_cold_t(i64 10, ptr nonnull %nt, i8 [[COLD]])
%call = call ptr @_ZnamRKSt9nothrow_t(i64 10, ptr %nt) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnamRKSt9nothrow_t(i64 10, ptr nonnull %nt)
%call1 = call ptr @_ZnamRKSt9nothrow_t(i64 10, ptr %nt) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnamRKSt9nothrow_t12__hot_cold_t(i64 10, ptr nonnull %nt, i8 [[HOT]])
%call2 = call ptr @_ZnamRKSt9nothrow_t(i64 10, ptr %nt) #2
call void @dummy(ptr %call2)
ret void
}
;; Check that operator new[](unsigned long, std::align_val_t, const std::nothrow_t&)
;; converted to
;; operator new[](unsigned long, std::align_val_t, const std::nothrow_t&, __hot_cold_t)
;; with a hot or cold attribute.
; HOTCOLD-LABEL: @array_new_align_nothrow()
define void @array_new_align_nothrow() {
%nt = alloca i8
;; Attribute cold converted to __hot_cold_t cold value.
; HOTCOLD: @_ZnamSt11align_val_tRKSt9nothrow_t12__hot_cold_t(i64 10, i64 8, ptr nonnull %nt, i8 [[COLD]])
%call = call ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #0
call void @dummy(ptr %call)
;; Attribute notcold has no effect.
; HOTCOLD: @_ZnamSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr nonnull %nt)
%call1 = call ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #1
call void @dummy(ptr %call1)
;; Attribute hot converted to __hot_cold_t hot value.
; HOTCOLD: @_ZnamSt11align_val_tRKSt9nothrow_t12__hot_cold_t(i64 10, i64 8, ptr nonnull %nt, i8 [[HOT]])
%call2 = call ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64 10, i64 8, ptr %nt) #2
call void @dummy(ptr %call2)
ret void
}
;; So that instcombine doesn't optimize out the call.
declare void @dummy(ptr)
declare ptr @_Znwm(i64)
declare ptr @_ZnwmSt11align_val_t(i64, i64)
declare ptr @_ZnwmRKSt9nothrow_t(i64, ptr)
declare ptr @_ZnwmSt11align_val_tRKSt9nothrow_t(i64, i64, ptr)
declare ptr @_Znam(i64)
declare ptr @_ZnamSt11align_val_t(i64, i64)
declare ptr @_ZnamRKSt9nothrow_t(i64, ptr)
declare ptr @_ZnamSt11align_val_tRKSt9nothrow_t(i64, i64, ptr)
attributes #0 = { builtin allocsize(0) "memprof"="cold" }
attributes #1 = { builtin allocsize(0) "memprof"="notcold" }
attributes #2 = { builtin allocsize(0) "memprof"="hot" }
|
