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
|
;; Test comdat functions.
; RUN: opt < %s -mtriple=x86_64-linux -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=ELF
; RUN: opt < %s -mtriple=x86_64-windows -passes=pgo-instr-gen,instrprof -S | FileCheck %s --check-prefixes=COFF
$linkonceodr = comdat any
$weakodr = comdat any
$weak = comdat any
$linkonce = comdat any
;; profc/profd have hash suffixes. This definition doesn't have value profiling,
;; so definitions with the same name in other modules must have the same CFG and
;; cannot have value profiling, either. profd can be made private for ELF.
; ELF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
; ELF: @__profd_linkonceodr.[[#]] = private global {{.*}} comdat($__profc_linkonceodr.[[#]]), align 8
; COFF: @__profc_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
; COFF: @__profd_linkonceodr.[[#]] = linkonce_odr hidden global {{.*}} comdat, align 8
define linkonce_odr void @linkonceodr() comdat {
ret void
}
;; weakodr in a comdat is not renamed. There is no guarantee that definitions in
;; other modules don't have value profiling. profd should be conservatively
;; non-private to prevent a caller from referencing a non-prevailing profd,
;; causing a linker error.
; ELF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8
; ELF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat($__profc_weakodr), align 8
; COFF: @__profc_weakodr = weak_odr hidden global {{.*}} comdat, align 8
; COFF: @__profd_weakodr = weak_odr hidden global {{.*}} comdat, align 8
define weak_odr void @weakodr() comdat {
ret void
}
;; weak in a comdat is not renamed. There is no guarantee that definitions in
;; other modules don't have value profiling. profd should be conservatively
;; non-private to prevent a caller from referencing a non-prevailing profd,
;; causing a linker error.
; ELF: @__profc_weak = weak hidden global {{.*}} comdat, align 8
; ELF: @__profd_weak = weak hidden global {{.*}} comdat($__profc_weak), align 8
; COFF: @__profc_weak = weak hidden global {{.*}} comdat, align 8
; COFF: @__profd_weak = weak hidden global {{.*}} comdat, align 8
define weak void @weak() comdat {
ret void
}
;; profc/profd have hash suffixes. This definition doesn't have value profiling,
;; so definitions with the same name in other modules must have the same CFG and
;; cannot have value profiling, either. profd can be made private for ELF.
; ELF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
; ELF: @__profd_linkonce.[[#]] = private global {{.*}} comdat($__profc_linkonce.[[#]]), align 8
; COFF: @__profc_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
; COFF: @__profd_linkonce.[[#]] = linkonce hidden global {{.*}} comdat, align 8
define linkonce void @linkonce() comdat {
ret void
}
; Check that comdat aliases are hidden for all linkage types
; ELF: @linkonceodr.local = linkonce_odr hidden alias void (), ptr @linkonceodr
; ELF: @weakodr.local = weak_odr hidden alias void (), ptr @weakodr
; ELF: @weak.local = weak hidden alias void (), ptr @weak
; ELF: @linkonce.local = linkonce hidden alias void (), ptr @linkonce
|
