File: relax-in-bundle-group.s

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llvm-toolchain-13 1%3A13.0.1-11
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# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mcpu=pentiumpro %s -o - \
# RUN:   | llvm-objdump -d - | FileCheck %s
# RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu -mcpu=pentiumpro -mc-relax-all %s -o - \
# RUN:   | llvm-objdump -d - | FileCheck %s

# Test that instructions inside bundle-locked groups are relaxed even if their
# fixup is short enough not to warrant relaxation on its own.

  .text
foo:
  .bundle_align_mode 4
  pushq   %rbp

  movl    %edi, %ebx
  callq   bar
  movl    %eax, %r14d
  imull   $17, %ebx, %ebp
  movl    %ebx, %edi
  callq   bar
  cmpl    %r14d, %ebp
  .bundle_lock

  jle     .L_ELSE
# This group would've started at 0x18 and is too long, so a chunky NOP padding
# is inserted to push it to 0x20.
# CHECK: 18: {{[a-f0-9 ]+}} nopl

# The long encoding for JLE should be used here even though its target is close
# CHECK-NEXT: 20: 0f 8e

  addl    %ebp, %eax

  jmp     .L_RET
# Same for the JMP
# CHECK: 28: e9

  .bundle_unlock

.L_ELSE:
  imull   %ebx, %eax
.L_RET:

  popq    %rbx