1# REQUIRES: x86 2 3# RUN: llvm-mc -triple=x86_64-windows-msvc %s -filetype=obj -o %t.obj 4# RUN: lld-link -lldmap:%t.map -out:%t.exe -opt:ref -entry:main %t.obj -verbose 2>&1 | FileCheck %s 5# RUN: FileCheck %s --check-prefix=MAP --input-file=%t.map 6 7# CHECK: Discarded unused1 8# CHECK-NEXT: Discarded unused2 9# CHECK-NOT: Discarded 10 11# MAP: In Symbol 12# MAP: gc-dwarf.s.tmp.obj:(.text) 13# MAP: {{ main$}} 14# MAP: gc-dwarf.s.tmp.obj:(.text) 15# MAP: {{ used$}} 16 17 .def @feat.00; .scl 3; .type 0; .endef 18 .globl @feat.00 19.set @feat.00, 0 20 21 .def main; .scl 2; .type 32; .endef 22 .section .text,"xr",one_only,main 23 .globl main 24main: 25 callq used 26 xorl %eax, %eax 27 retq 28 29 .def used; .scl 2; .type 32; .endef 30 .section .text,"xr",one_only,used 31 .globl used 32used: 33 retq 34 35 36 .def unused1; .scl 2; .type 32; .endef 37 .section .text,"xr",one_only,unused1 38 .globl unused1 39unused1: 40 retq 41 42 .def unused2; .scl 2; .type 32; .endef 43 .section .text,"xr",one_only,unused2 44 .globl unused2 45unused2: 46 retq 47 48# This isn't valid DWARF, but LLD doesn't care. Make up some data that 49# references the functions above. 50.section .debug_info,"r" 51.long main@IMGREL 52.long unused1@IMGREL 53.long unused2@IMGREL 54 55# Similarly, .eh_frame unwind info should not keep functions alive. Again, this 56# is not valid unwind info, but it doesn't matter for testing purposes. 57.section .eh_frame,"r" 58.long main@IMGREL 59.long unused1@IMGREL 60.long unused2@IMGREL 61