lld/test/COFF/icf-xdata.s

   1 # REQUIRES: x86
   2 # RUN: llvm-mc %s -triple x86_64-windows-msvc -filetype=obj -o %t.obj
   3 # RUN: lld-link %t.obj -dll -noentry -out:%t.dll -merge:.xdata=.xdata 2>&1 \
   4 # RUN:     | FileCheck %s --check-prefix=WARN
   5 # RUN: llvm-readobj --sections %t.dll | FileCheck %s --check-prefix=XDATA
   6 # RUN: lld-link %t.obj -dll -noentry -out:%t.dll
   7 # RUN: llvm-readobj --sections %t.dll | FileCheck %s --check-prefix=RDATA
   8
   9 # There shouldn't be much xdata, because all three .pdata entries (12 bytes
  10 # each) should use the same .xdata unwind info.
  11 # XDATA:         Name: .rdata
  12 # XDATA-NEXT:    VirtualSize: 0x6F
  13 # XDATA:         Name: .pdata
  14 # XDATA-NEXT:    VirtualSize: 0x24
  15 # XDATA:         Name: .xdata
  16 # XDATA-NEXT:    VirtualSize: 0x8
  17 #
  18 # WARN: warning: .xdata=.rdata: already merged into .xdata
  19 #
  20 # RDATA:         Name: .rdata
  21 # RDATA-NEXT:    VirtualSize: 0x78
  22 # RDATA:         Name: .pdata
  23 # RDATA-NEXT:    VirtualSize: 0x24
  24
  25         .text
  26 callee:
  27         ret
  28
  29         .def     xdata1;
  30         .scl    2;
  31         .type   32;
  32         .endef
  33         .section        .text,"xr",one_only,xdata1
  34         .globl  xdata1                  # -- Begin function xdata1
  35         .p2align        4, 0x90
  36 xdata1:                                 # @xdata1
  37 .seh_proc xdata1
  38 # BB#0:                                 # %entry
  39         subq    $40, %rsp
  40         .seh_stackalloc 40
  41         .seh_endprologue
  42         callq   callee
  43         nop
  44         addq    $40, %rsp
  45         jmp     callee                  # TAILCALL
  46         .seh_handlerdata
  47         .section        .text,"xr",one_only,xdata1
  48         .seh_endproc
  49                                         # -- End function
  50         .def     xdata2;
  51         .scl    2;
  52         .type   32;
  53         .endef
  54         .section        .text,"xr",one_only,xdata2
  55         .globl  xdata2                  # -- Begin function xdata2
  56         .p2align        4, 0x90
  57 xdata2:                                 # @xdata2
  58 .seh_proc xdata2
  59 # BB#0:                                 # %entry
  60         subq    $40, %rsp
  61         .seh_stackalloc 40
  62         .seh_endprologue
  63         callq   callee
  64         callq   callee
  65         nop
  66         addq    $40, %rsp
  67         jmp     callee                  # TAILCALL
  68         .seh_handlerdata
  69         .section        .text,"xr",one_only,xdata2
  70         .seh_endproc
  71                                         # -- End function
  72         .def     xdata3;
  73         .scl    2;
  74         .type   32;
  75         .endef
  76         .section        .text,"xr",one_only,xdata3
  77         .globl  xdata3                  # -- Begin function xdata3
  78         .p2align        4, 0x90
  79 xdata3:                                 # @xdata3
  80 .seh_proc xdata3
  81 # BB#0:                                 # %entry
  82         subq    $40, %rsp
  83         .seh_stackalloc 40
  84         .seh_endprologue
  85         callq   callee
  86         callq   callee
  87         callq   callee
  88         nop
  89         addq    $40, %rsp
  90         jmp     callee                  # TAILCALL
  91         .seh_handlerdata
  92         .section        .text,"xr",one_only,xdata3
  93         .seh_endproc
  94                                         # -- End function
  95         .section        .drectve,"yn"
  96         .ascii  " -export:xdata1"
  97         .ascii  " -export:xdata2"
  98         .ascii  " -export:xdata3"
  99