bolt/test/X86/split-all-lptrampoline.s

   1 # This test checks that trampolines are inserted in split fragments if
   2 # necessary. There are 4 LSDA ranges with a landing pad to three landing pads.
   3 # After splitting all blocks, there have to be 4 trampolines in the output.
   4
   5 # RUN: llvm-mc --filetype=obj --triple x86_64-unknown-unknown %s -o %t.o
   6 # RUN: %clangxx %cxxflags %t.o -o %t.exe -Wl,-q -pie
   7 # RUN: llvm-bolt %t.exe --split-functions --split-strategy=all --split-eh \
   8 # RUN:         -o %t.bolt --print-split --print-only=main 2>&1 | FileCheck %s
   9
  10 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  11 # CHECK: .LFT0
  12 # CHECK: Landing Pads: .LBB0
  13 # CHECK: .LBB0
  14 # CHECK-NEXT: Landing Pad
  15 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  16 # CHECK: .Ltmp0
  17 # CHECK: Landing Pads: .LBB1, .LBB2
  18 # CHECK: .LBB1
  19 # CHECK-NEXT: Landing Pad
  20 # CHECK: .LBB2
  21 # CHECK-NEXT: Landing Pad
  22 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  23 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  24 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  25 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  26 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  27 # CHECK: .Ltmp3
  28 # CHECK: Landing Pads: .LBB3
  29 # CHECK: .LBB3
  30 # CHECK-NEXT: Landing Pad
  31 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  32 # CHECK: -------   HOT-COLD SPLIT POINT   -------
  33
  34         .text
  35         .section        .rodata.str1.1,"aMS",@progbits,1
  36 .LC0:
  37         .string "E"
  38 .LC1:
  39         .string "C"
  40         .text
  41         .globl  main
  42         .type   main, @function
  43 main:
  44 .LFB1265:
  45         .cfi_startproc
  46         .cfi_personality 0x9b,DW.ref.__gxx_personality_v0
  47         .cfi_lsda 0x1b,.LLSDA1265
  48         pushq   %r12
  49         .cfi_def_cfa_offset 16
  50         .cfi_offset 12, -16
  51         pushq   %rbp
  52         .cfi_def_cfa_offset 24
  53         .cfi_offset 6, -24
  54         pushq   %rbx
  55         .cfi_def_cfa_offset 32
  56         .cfi_offset 3, -32
  57         testb   $3, %dil
  58         jne     .L13
  59         leaq    .LC1(%rip), %rdi
  60 .LEHB0:
  61         call    puts@PLT
  62         # Trampoline to .L9
  63 .LEHE0:
  64         jmp     .L11
  65 .L13:
  66         movl    $16, %edi
  67         call    __cxa_allocate_exception@PLT
  68         movq    %rax, %rbx
  69         leaq    .LC0(%rip), %rsi
  70         movq    %rax, %rdi
  71 .LEHB1:
  72         call    _ZNSt13runtime_errorC1EPKc@PLT
  73         # Trampoline to .L8
  74 .LEHE1:
  75         movq    _ZNSt13runtime_errorD1Ev@GOTPCREL(%rip), %rdx
  76         movq    _ZTISt13runtime_error@GOTPCREL(%rip), %rsi
  77         movq    %rbx, %rdi
  78 .LEHB2:
  79         call    __cxa_throw@PLT
  80         # Trampoline to .L9
  81 .LEHE2:
  82 .L9:
  83         movq    %rax, %rdi
  84         movq    %rdx, %rax
  85         jmp     .L4
  86 .L8:
  87         movq    %rax, %r12
  88         movq    %rdx, %rbp
  89         movq    %rbx, %rdi
  90         call    __cxa_free_exception@PLT
  91         movq    %r12, %rdi
  92         movq    %rbp, %rax
  93 .L4:
  94         cmpq    $1, %rax
  95         je      .L5
  96 .LEHB3:
  97         call    _Unwind_Resume@PLT
  98 .LEHE3:
  99 .L5:
 100         call    __cxa_begin_catch@PLT
 101         movq    %rax, %rdi
 102         movq    (%rax), %rax
 103         call    *16(%rax)
 104         movq    %rax, %rdi
 105 .LEHB4:
 106         call    puts@PLT
 107         # Trampoline to .L10
 108 .LEHE4:
 109         call    __cxa_end_catch@PLT
 110 .L11:
 111         movl    $0, %eax
 112         popq    %rbx
 113         .cfi_remember_state
 114         .cfi_def_cfa_offset 24
 115         popq    %rbp
 116         .cfi_def_cfa_offset 16
 117         popq    %r12
 118         .cfi_def_cfa_offset 8
 119         ret
 120 .L10:
 121         .cfi_restore_state
 122         movq    %rax, %rbx
 123         call    __cxa_end_catch@PLT
 124         movq    %rbx, %rdi
 125 .LEHB5:
 126         call    _Unwind_Resume@PLT
 127 .LEHE5:
 128         .cfi_endproc
 129         .globl  __gxx_personality_v0
 130         .section        .gcc_except_table,"a",@progbits
 131         .align 4
 132 .LLSDA1265:
 133         .byte   0xff
 134         .byte   0x9b
 135         .uleb128 .LLSDATT1265-.LLSDATTD1265
 136 .LLSDATTD1265:
 137         .byte   0x1
 138         .uleb128 .LLSDACSE1265-.LLSDACSB1265
 139 .LLSDACSB1265:
 140         .uleb128 .LEHB0-.LFB1265
 141         .uleb128 .LEHE0-.LEHB0
 142         .uleb128 .L9-.LFB1265
 143         .uleb128 0x1
 144         .uleb128 .LEHB1-.LFB1265
 145         .uleb128 .LEHE1-.LEHB1
 146         .uleb128 .L8-.LFB1265
 147         .uleb128 0x3
 148         .uleb128 .LEHB2-.LFB1265
 149         .uleb128 .LEHE2-.LEHB2
 150         .uleb128 .L9-.LFB1265
 151         .uleb128 0x1
 152         .uleb128 .LEHB3-.LFB1265
 153         .uleb128 .LEHE3-.LEHB3
 154         .uleb128 0
 155         .uleb128 0
 156         .uleb128 .LEHB4-.LFB1265
 157         .uleb128 .LEHE4-.LEHB4
 158         .uleb128 .L10-.LFB1265
 159         .uleb128 0
 160         .uleb128 .LEHB5-.LFB1265
 161         .uleb128 .LEHE5-.LEHB5
 162         .uleb128 0
 163         .uleb128 0
 164 .LLSDACSE1265:
 165         .byte   0x1
 166         .byte   0
 167         .byte   0
 168         .byte   0x7d
 169         .align 4
 170         .long   DW.ref._ZTISt13runtime_error-.
 171 .LLSDATT1265:
 172         .text
 173         .size   main, .-main
 174         .hidden DW.ref._ZTISt13runtime_error
 175         .weak   DW.ref._ZTISt13runtime_error
 176         .section        .data.rel.local.DW.ref._ZTISt13runtime_error,"awG",@progbits,DW.ref._ZTISt13runtime_error,comdat
 177         .align 8
 178         .type   DW.ref._ZTISt13runtime_error, @object
 179         .size   DW.ref._ZTISt13runtime_error, 8
 180 DW.ref._ZTISt13runtime_error:
 181         .quad   _ZTISt13runtime_error
 182         .hidden DW.ref.__gxx_personality_v0
 183         .weak   DW.ref.__gxx_personality_v0
 184         .section        .data.rel.local.DW.ref.__gxx_personality_v0,"awG",@progbits,DW.ref.__gxx_personality_v0,comdat
 185         .align 8
 186         .type   DW.ref.__gxx_personality_v0, @object
 187         .size   DW.ref.__gxx_personality_v0, 8
 188 DW.ref.__gxx_personality_v0:
 189         .quad   __gxx_personality_v0
 190         .ident  "GCC: (Compiler-Explorer-Build-gcc--binutils-2.38) 12.1.0"
 191         .section        .note.GNU-stack,"",@progbits