projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| fa94de6b RM |
1 | .syntax unified |
| 2 | .bundle_align_mode 4 | |
| 3 | ||
| 4 | # We use these macros to test each pattern at every offset from | |
| 5 | # bundle alignment, i.e. [0,16) by 2 or 4. | |
| 6 | ||
| 7 | .macro offset_insn insn_name, offset, size | |
| 8 | .p2align 4 | |
| 9 | \insn_name\()_offset_\offset\(): | |
| 10 | .rept \offset / \size | |
| 11 | bkpt | |
| 12 | .endr | |
| 13 | \insn_name | |
| 14 | .endm | |
| 15 | ||
| 16 | .macro test_offsets_arm insn_name | |
| 17 | .arm | |
| 18 | offset_insn \insn_name, 0, 4 | |
| 19 | offset_insn \insn_name, 4, 4 | |
| 20 | offset_insn \insn_name, 8, 4 | |
| 21 | offset_insn \insn_name, 12, 4 | |
| 22 | .endm | |
| 23 | ||
| 24 | .macro test_offsets_thumb insn_name | |
| 25 | .thumb | |
| 26 | offset_insn \insn_name, 0, 2 | |
| 27 | offset_insn \insn_name, 2, 2 | |
| 28 | offset_insn \insn_name, 4, 2 | |
| 29 | offset_insn \insn_name, 6, 2 | |
| 30 | offset_insn \insn_name, 8, 2 | |
| 31 | offset_insn \insn_name, 10, 2 | |
| 32 | offset_insn \insn_name, 12, 2 | |
| 33 | offset_insn \insn_name, 14, 2 | |
| 34 | .endm | |
| 35 | ||
| 36 | .macro test_arm | |
| 37 | add r0, r1 | |
| 38 | .endm | |
| 39 | ||
| 40 | .macro test_thumb_2 | |
| 41 | adds r0, r1 | |
| 42 | .endm | |
| 43 | .macro test_thumb_4 | |
| 44 | adds r8, r9 | |
| 45 | .endm | |
| 46 | ||
| 47 | test_offsets_arm test_arm | |
| 48 | test_offsets_thumb test_thumb_2 | |
| 49 | test_offsets_thumb test_thumb_4 | |
| 50 | ||
| 51 | # There are many relaxation cases for Thumb instructions. | |
| 52 | # But we use as representative the simple branch cases. | |
| 53 | ||
| 54 | .macro test_thumb_b_2 | |
| 55 | b 0f | |
| 56 | bkpt 1 | |
| 57 | 0: bkpt 2 | |
| 58 | .endm | |
| 59 | .macro test_thumb_b_4 | |
| 60 | b far_target | |
| 61 | .endm | |
| 62 | ||
| 63 | test_offsets_thumb test_thumb_b_2 | |
| 64 | test_offsets_thumb test_thumb_b_4 | |
| 65 | ||
| 66 | # This is to set up a branch target surely too far for a short branch. | |
| 67 | pad_for_far_target: | |
| 68 | .rept 1025 | |
| 69 | bkpt 1 | |
| 70 | .endr | |
| 71 | far_target: | |
| 72 | bkpt 2 | |
| 73 | .p2align 4 | |
| 74 | bkpt |