bolt/test/X86/internal-call-instrument.s

   1 # This reproduces a bug with instrumentation crashes on internal call
   2
   3 # REQUIRES: x86_64-linux,bolt-runtime,target=x86_64{{.*}}
   4
   5 # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown %s -o %t.o
   6 # Delete our BB symbols so BOLT doesn't mark them as entry points
   7 # RUN: llvm-strip --strip-unneeded %t.o
   8 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
   9
  10 # RUN: llvm-bolt --instrument %t.exe --relocs -o %t.out
  11
  12   .text
  13   .globl _start
  14   .type _start, %function
  15   .p2align  4
  16 _start:
  17   call main
  18   ret
  19   .size _start, .-_start
  20
  21   .globl  main
  22   .type main, %function
  23   .p2align  4
  24 main:
  25   push   %rbp
  26   mov    %rsp,%rbp
  27   push   %r12
  28   push   %rbx
  29   sub    $0x120,%rsp
  30   mov    $0x3,%rbx
  31   movq   rel(%rip), %rdi
  32 .J1:
  33   cmp    $0x0,%rbx
  34   je     .J2
  35   callq  .J3
  36   nopl   (%rax,%rax,1)
  37   movabs $0xdeadbeef,%rax
  38   retq
  39 .J2:
  40   add    $0x120,%rsp
  41   pop    %rbx
  42   pop    %r12
  43   jmp    .J4
  44 .J3:
  45   pop    %rax
  46   add    $0x4,%rax
  47   dec    %rbx
  48   jmp    .J1
  49 .J4:
  50   pop    %rbp
  51   retq
  52 end:
  53   .size main, .-main
  54
  55   .globl  _fini
  56   .type _fini, %function
  57   .p2align  4
  58 _fini:
  59   hlt
  60   .size _fini, .-_fini
  61
  62   .data
  63 rel: .quad end