| # RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - \ |
| # RUN: | llvm-objdump -disassemble -no-show-raw-insn - | FileCheck %s |
| |
| # Test simple NOP insertion for single instructions. |
| |
| .text |
| foo: |
| # Will be bundle-aligning to 16 byte boundaries |
| .bundle_align_mode 4 |
| pushq %rbp |
| pushq %r14 |
| pushq %rbx |
| |
| movl %edi, %ebx |
| callq bar |
| movl %eax, %r14d |
| |
| imull $17, %ebx, %ebp |
| # This imull is 3 bytes long and should have started at 0xe, so two bytes |
| # of nop padding are inserted instead and it starts at 0x10 |
| # CHECK: nop |
| # CHECK-NEXT: 10: imull |
| |
| movl %ebx, %edi |
| callq bar |
| cmpl %r14d, %ebp |
| jle .L_ELSE |
| # Due to the padding that's inserted before the addl, the jump target |
| # becomes farther by one byte. |
| # CHECK: jle 5 |
| |
| addl %ebp, %eax |
| # CHECK: nop |
| # CHECK-NEXT: 20: addl |
| |
| jmp .L_RET |
| .L_ELSE: |
| imull %ebx, %eax |
| .L_RET: |
| ret |
| |
| # Just sanity checking that data fills don't drive bundling crazy |
| .data |
| .byte 40 |
| .byte 98 |
| |
| |
