bolt/test/X86/jmp-after-ret.s

   1 ## This test checks that the unreachable unconditional branch is removed
   2 ## if it is located after return instruction.
   3
   4 # REQUIRES: system-linux
   5
   6 # RUN: llvm-mc -filetype=obj -triple x86_64-unknown-unknown \
   7 # RUN:   %s -o %t.o
   8 # RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
   9 # RUN: llvm-bolt %t.exe -o %t.bolt | FileCheck %s
  10
  11 # CHECK: UCE removed 1 blocks
  12
  13     .text
  14     .globl main
  15     .type main, %function
  16     .size main, .Lend-main
  17 main:
  18     je 1f
  19     retq
  20     jmp main
  21 1:
  22     movl $0x2, %ebx
  23     retq
  24 .Lend: