lld/test/COFF/icf-pdata.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
   4 # RUN: llvm-readobj --sections --coff-exports %t.dll | FileCheck %s
   5
   6 # CHECK:         Name: .pdata
   7 # CHECK-NEXT:    VirtualSize: 0x18
   8 # CHECK:         Name: .xdata
   9 # CHECK-NEXT:    VirtualSize: 0x10
  10
  11 # CHECK:         Name: xdata1
  12 # CHECK-NEXT:    RVA: 0x1010
  13 # CHECK:         Name: xdata1a
  14 # CHECK-NEXT:    RVA: 0x1010
  15 # CHECK:         Name: xdata1b
  16 # CHECK-NEXT:    RVA: 0x1030
  17
  18         .text
  19 callee:
  20         ret
  21
  22         .def     xdata1;
  23         .scl    2;
  24         .type   32;
  25         .endef
  26         .section        .text,"xr",one_only,xdata1
  27         .globl  xdata1                  # -- Begin function xdata1
  28         .p2align        4, 0x90
  29 xdata1:                                 # @xdata1
  30 .seh_proc xdata1
  31 # BB#0:                                 # %entry
  32         subq    $40, %rsp
  33         .seh_stackalloc 40
  34         .seh_endprologue
  35         callq   callee
  36         nop
  37         addq    $40, %rsp
  38         jmp     callee                  # TAILCALL
  39         .seh_handlerdata
  40         .section        .text,"xr",one_only,xdata1
  41         .seh_endproc
  42                                         # -- End function
  43
  44 # xdata1a is identical to xdata1, so it should be ICFd, and so should its pdata.
  45 # It also has associative debug and CFG sections which should be ignored by ICF.
  46         .def     xdata1a;
  47         .scl    2;
  48         .type   32;
  49         .endef
  50         .section        .text,"xr",one_only,xdata1a
  51         .globl  xdata1a                  # -- Begin function xdata1a
  52         .p2align        4, 0x90
  53 xdata1a:                                 # @xdata1a
  54 .seh_proc xdata1a
  55 # BB#0:                                 # %entry
  56         subq    $40, %rsp
  57         .seh_stackalloc 40
  58         .seh_endprologue
  59         callq   callee
  60         nop
  61         addq    $40, %rsp
  62         jmp     callee                  # TAILCALL
  63         .seh_handlerdata
  64         .section        .text,"xr",one_only,xdata1a
  65         .seh_endproc
  66
  67         .section .debug$S,"r",associative,xdata1a
  68         .section .gfids$y,"r",associative,xdata1a
  69         .section .gljmp$y,"r",associative,xdata1a
  70
  71 # xdata1b's text is identical to xdata1, but its xdata specifies a different
  72 # stack size, so it cannot be ICFd with xdata1.
  73         .def     xdata1b;
  74         .scl    2;
  75         .type   32;
  76         .endef
  77         .section        .text,"xr",one_only,xdata1b
  78         .globl  xdata1b                  # -- Begin function xdata1b
  79         .p2align        4, 0x90
  80 xdata1b:                                 # @xdata1b
  81 .seh_proc xdata1b
  82 # BB#0:                                 # %entry
  83         subq    $40, %rsp
  84         .seh_stackalloc 48
  85         .seh_endprologue
  86         callq   callee
  87         nop
  88         addq    $40, %rsp
  89         jmp     callee                  # TAILCALL
  90         .seh_handlerdata
  91         .section        .text,"xr",one_only,xdata1b
  92         .seh_endproc
  93                                         # -- End function
  94
  95         .section        .drectve,"yn"
  96         .ascii  " -export:xdata1"
  97         .ascii  " -export:xdata1a"
  98         .ascii  " -export:xdata1b"