| .syntax unified |
| .bundle_align_mode 4 |
| |
| # We use these macros to test each pattern at every offset from |
| # bundle alignment, i.e. [0,16) by 2 or 4. |
| |
| .macro offset_insn insn_name, offset, size |
| .p2align 4 |
| \insn_name\()_offset_\offset\(): |
| .rept \offset / \size |
| bkpt |
| .endr |
| \insn_name |
| .endm |
| |
| .macro test_offsets_arm insn_name |
| .arm |
| offset_insn \insn_name, 0, 4 |
| offset_insn \insn_name, 4, 4 |
| offset_insn \insn_name, 8, 4 |
| offset_insn \insn_name, 12, 4 |
| .endm |
| |
| .macro test_offsets_thumb insn_name |
| .thumb |
| offset_insn \insn_name, 0, 2 |
| offset_insn \insn_name, 2, 2 |
| offset_insn \insn_name, 4, 2 |
| offset_insn \insn_name, 6, 2 |
| offset_insn \insn_name, 8, 2 |
| offset_insn \insn_name, 10, 2 |
| offset_insn \insn_name, 12, 2 |
| offset_insn \insn_name, 14, 2 |
| .endm |
| |
| .macro test_arm |
| add r0, r1 |
| .endm |
| |
| .macro test_thumb_2 |
| adds r0, r1 |
| .endm |
| .macro test_thumb_4 |
| adds r8, r9 |
| .endm |
| |
| test_offsets_arm test_arm |
| test_offsets_thumb test_thumb_2 |
| test_offsets_thumb test_thumb_4 |
| |
| # There are many relaxation cases for Thumb instructions. |
| # But we use as representative the simple branch cases. |
| |
| .macro test_thumb_b_2 |
| b 0f |
| bkpt 1 |
| 0: bkpt 2 |
| .endm |
| .macro test_thumb_b_4 |
| b far_target |
| .endm |
| |
| test_offsets_thumb test_thumb_b_2 |
| test_offsets_thumb test_thumb_b_4 |
| |
| # This is to set up a branch target surely too far for a short branch. |
| pad_for_far_target: |
| .rept 1025 |
| bkpt 1 |
| .endr |
| far_target: |
| bkpt 2 |
| .p2align 4 |
| bkpt |
