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
| ; REQUIRES: x86
; RUN: llvm-as -o %T/comdat-main.lto.obj %s
; RUN: llvm-as -o %T/comdat1.lto.obj %S/Inputs/lto-comdat1.ll
; RUN: llvm-as -o %T/comdat2.lto.obj %S/Inputs/lto-comdat2.ll
; RUN: rm -f %T/comdat.lto.lib
; RUN: llvm-ar cru %T/comdat.lto.lib %T/comdat1.lto.obj %T/comdat2.lto.obj
; RUN: llc -filetype=obj -o %T/comdat-main.obj %s
; RUN: llc -filetype=obj -o %T/comdat1.obj %S/Inputs/lto-comdat1.ll
; RUN: llc -filetype=obj -o %T/comdat2.obj %S/Inputs/lto-comdat2.ll
; RUN: rm -f %T/comdat.lib
; RUN: llvm-ar cru %T/comdat.lib %T/comdat1.obj %T/comdat2.obj
; Check that, when we use an LTO main with LTO objects, we optimize away all
; of f1, f2, and comdat.
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat1.lto.obj %T/comdat2.lto.obj
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-11 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-11 %s
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat.lto.lib
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-11 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-11 %s
; Check that, when we use a non-LTO main with LTO objects, we pick the comdat
; implementation in LTO, elide calls to it from inside LTO, and retain the
; call to comdat from main.
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.obj %T/comdat1.lto.obj %T/comdat2.lto.obj
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-01 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-01 %s
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.obj %T/comdat.lto.lib
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-01 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-01 %s
; Check that, when we use an LTO main with non-LTO objects, we pick the comdat
; implementation in LTO, elide the call to it from inside LTO, and keep the
; calls to comdat from the non-LTO objects.
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat1.obj %T/comdat2.obj
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-10 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-10 %s
; RUN: lld-link /out:%T/comdat-main.exe /entry:main /subsystem:console %T/comdat-main.lto.obj %T/comdat.lib
; RUN: llvm-readobj --file-headers %T/comdat-main.exe | FileCheck -check-prefix=HEADERS-10 %s
; RUN: llvm-objdump -d %T/comdat-main.exe | FileCheck -check-prefix=TEXT-10 %s
; HEADERS-11: AddressOfEntryPoint: 0x1000
; TEXT-11: Disassembly of section .text:
; TEXT-11-EMPTY:
; TEXT-11-NEXT: .text:
; TEXT-11-NEXT: xorl %eax, %eax
; TEXT-11-NEXT: retq
; HEADERS-01: AddressOfEntryPoint: 0x1000
; TEXT-01: Disassembly of section .text:
; TEXT-01-EMPTY:
; TEXT-01-NEXT: .text:
; TEXT-01-NEXT: subq $40, %rsp
; TEXT-01-NEXT: callq 23
; TEXT-01-NEXT: callq 18
; TEXT-01-NEXT: callq 13
; TEXT-01-NEXT: xorl %eax, %eax
; TEXT-01-NEXT: addq $40, %rsp
; TEXT-01: retq
; TEXT-01-NOT: callq
; TEXT-01: retq
; TEXT-01: int3
; TEXT-01: int3
; TEXT-01: int3
; TEXT-01-NOT: {{.}}
; HEADERS-10: AddressOfEntryPoint: 0x1020
; TEXT-10: Disassembly of section .text:
; TEXT-10-EMPTY:
; TEXT-10-NEXT: .text:
; TEXT-10-NEXT: subq $40, %rsp
; TEXT-10-NEXT: callq 55
; TEXT-10-NEXT: nop
; TEXT-10-NEXT: addq $40, %rsp
; TEXT-10-NEXT: retq
; TEXT-10-NEXT: int3
; TEXT-10-NEXT: subq $40, %rsp
; TEXT-10-NEXT: callq 39
; TEXT-10-NEXT: nop
; TEXT-10-NEXT: addq $40, %rsp
; TEXT-10-NEXT: retq
; TEXT-10-NEXT: int3
; TEXT-10-NEXT: subq $40, %rsp
; TEXT-10-NEXT: callq -41
; TEXT-10-NEXT: callq -30
; TEXT-10-NEXT: xorl %eax, %eax
; TEXT-10-NEXT: addq $40, %rsp
; TEXT-10-NEXT: retq
; TEXT-10-NOT: callq
; TEXT-10: retq
; TEXT-10-NOT: {{.}}
target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
$comdat = comdat any
define i32 @main() {
call void @f1()
call void @f2()
call void @comdat()
ret i32 0
}
define linkonce_odr void @comdat() comdat {
ret void
}
declare void @f1()
declare void @f2()
|