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
|
# REQUIRES: x86
# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t.obj
# RUN: lld-link -lldmap:%t.map -out:%t.exe -opt:ref -entry:main %t.obj -verbose 2>&1 | FileCheck %s
# RUN: FileCheck %s --check-prefix=MAP --input-file=%t.map
# CHECK: Discarded unused1
# CHECK-NEXT: Discarded unused2
# CHECK-NOT: Discarded
# MAP: In Symbol
# MAP: gc-dwarf.s.tmp.obj:(.text)
# MAP: {{ main$}}
# MAP: gc-dwarf.s.tmp.obj:(.text)
# MAP: {{ used$}}
.def @feat.00; .scl 3; .type 0; .endef
.globl @feat.00
.set @feat.00, 0
.def main; .scl 2; .type 32; .endef
.section .text,"xr",one_only,main
.globl main
main:
callq used
xorl %eax, %eax
retq
.def used; .scl 2; .type 32; .endef
.section .text,"xr",one_only,used
.globl used
used:
retq
.def unused1; .scl 2; .type 32; .endef
.section .text,"xr",one_only,unused1
.globl unused1
unused1:
retq
.def unused2; .scl 2; .type 32; .endef
.section .text,"xr",one_only,unused2
.globl unused2
unused2:
retq
# This isn't valid DWARF, but LLD doesn't care. Make up some data that
# references the functions above.
.section .debug_info,"r"
.long main@IMGREL
.long unused1@IMGREL
.long unused2@IMGREL
# Similarly, .eh_frame unwind info should not keep functions alive. Again, this
# is not valid unwind info, but it doesn't matter for testing purposes.
.section .eh_frame,"r"
.long main@IMGREL
.long unused1@IMGREL
.long unused2@IMGREL
|
