test/MC/X86/AlignedBundling/relax-in-bundle-group.s

   1 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mcpu=pentiumpro %s -o - \
   2 # RUN:   | llvm-objdump -disassemble - | FileCheck %s
   3 # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mcpu=pentiumpro -mc-relax-all %s -o - \
   4 # RUN:   | llvm-objdump -disassemble - | FileCheck %s
   5
   6 # Test that instructions inside bundle-locked groups are relaxed even if their
   7 # fixup is short enough not to warrant relaxation on its own.
   8
   9   .text
  10 foo:
  11   .bundle_align_mode 4
  12   pushq   %rbp
  13
  14   movl    %edi, %ebx
  15   callq   bar
  16   movl    %eax, %r14d
  17   imull   $17, %ebx, %ebp
  18   movl    %ebx, %edi
  19   callq   bar
  20   cmpl    %r14d, %ebp
  21   .bundle_lock
  22
  23   jle     .L_ELSE
  24 # This group would've started at 0x18 and is too long, so a chunky NOP padding
  25 # is inserted to push it to 0x20.
  26 # CHECK: 18: {{[a-f0-9 ]+}} nopl
  27
  28 # The long encoding for JLE should be used here even though its target is close
  29 # CHECK-NEXT: 20: 0f 8e
  30
  31   addl    %ebp, %eax
  32
  33   jmp     .L_RET
  34 # Same for the JMP
  35 # CHECK: 28: e9
  36
  37   .bundle_unlock
  38
  39 .L_ELSE:
  40   imull   %ebx, %eax
  41 .L_RET:
  42
  43   popq    %rbx
  44