| .bundle_align_mode 5 |
| |
| # We use these macros to test each pattern at every offset from |
| # bundle alignment, i.e. [0,31]. |
| |
| .macro offset_insn insn_name, offset |
| .p2align 5 |
| \insn_name\()_offset_\offset\(): |
| .if \offset |
| .space \offset, 0xf4 |
| .endif |
| \insn_name |
| .endm |
| |
| .macro test_offsets insn_name |
| offset_insn \insn_name, 0 |
| offset_insn \insn_name, 1 |
| offset_insn \insn_name, 2 |
| offset_insn \insn_name, 3 |
| offset_insn \insn_name, 4 |
| offset_insn \insn_name, 5 |
| offset_insn \insn_name, 6 |
| offset_insn \insn_name, 7 |
| offset_insn \insn_name, 8 |
| offset_insn \insn_name, 9 |
| offset_insn \insn_name, 10 |
| offset_insn \insn_name, 11 |
| offset_insn \insn_name, 12 |
| offset_insn \insn_name, 13 |
| offset_insn \insn_name, 14 |
| offset_insn \insn_name, 15 |
| offset_insn \insn_name, 16 |
| offset_insn \insn_name, 17 |
| offset_insn \insn_name, 18 |
| offset_insn \insn_name, 19 |
| offset_insn \insn_name, 20 |
| offset_insn \insn_name, 21 |
| offset_insn \insn_name, 22 |
| offset_insn \insn_name, 23 |
| offset_insn \insn_name, 24 |
| offset_insn \insn_name, 25 |
| offset_insn \insn_name, 26 |
| offset_insn \insn_name, 27 |
| offset_insn \insn_name, 28 |
| offset_insn \insn_name, 29 |
| offset_insn \insn_name, 30 |
| offset_insn \insn_name, 31 |
| .endm |
| |
| # These are vanilla (non-relaxed) instructions of each length. |
| .macro test_1 |
| clc |
| .endm |
| .macro test_2 |
| add %eax,%eax |
| .endm |
| .macro test_3 |
| and $3,%eax |
| .endm |
| .macro test_4 |
| lock andl $3,(%rax) |
| .endm |
| .macro test_5 |
| mov $0x11223344,%eax |
| .endm |
| .macro test_6 |
| movl %eax,0x11223344(%rsi) |
| .endm |
| .macro test_7 |
| movl $0x11223344,0x7f(%rsi) |
| .endm |
| .macro test_8 |
| lock addl $0x11223344,0x10(%rsi) |
| .endm |
| .macro test_9 |
| lock addl $0x11223344,%fs:0x10(%rsi) |
| .endm |
| .macro test_10 |
| movl $0x11223344,0x7ff(%rsi) |
| .endm |
| .macro test_11 |
| lock addl $0x11223344,0x7ff(%rsi) |
| .endm |
| .macro test_12 |
| lock addl $0x11223344,%fs:0x7ff(%rsi) |
| .endm |
| .macro test_13 |
| lock addl $0x11223344,%fs:0x7ff(%r11) |
| .endm |
| |
| test_offsets test_1 |
| test_offsets test_2 |
| test_offsets test_3 |
| test_offsets test_4 |
| test_offsets test_5 |
| test_offsets test_6 |
| test_offsets test_7 |
| test_offsets test_8 |
| test_offsets test_9 |
| test_offsets test_10 |
| test_offsets test_11 |
| test_offsets test_12 |
| test_offsets test_13 |
| |
| # The only relaxation cases are the jump instructions. |
| # For each of the three flavors of jump (unconditional, conditional, |
| # and conditional with prediction), we test a case that can be relaxed |
| # to its shortest form, and one that must use the long form. |
| .macro jmp_2 |
| jmp jmp_2_\@ |
| movl $0xdeadbeef,%eax |
| jmp_2_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| .macro jmp_5 |
| jmp jmp_5_\@ |
| .rept 128 |
| clc |
| .endr |
| jmp_5_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| |
| .macro cjmp_2 |
| jz cjmp_2_\@ |
| movl $0xdeadbeef,%eax |
| cjmp_2_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| .macro cjmp_6 |
| jz cjmp_6_\@ |
| .rept 128 |
| clc |
| .endr |
| cjmp_6_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| |
| .macro pjmp_3 |
| jz,pt pjmp_3_\@ |
| movl $0xdeadbeef,%eax |
| pjmp_3_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| .macro pjmp_7 |
| jz,pt pjmp_7_\@ |
| .rept 128 |
| clc |
| .endr |
| pjmp_7_\@\(): |
| movl $0xb00b,%eax |
| .endm |
| |
| test_offsets jmp_2 |
| test_offsets cjmp_2 |
| test_offsets pjmp_3 |
| test_offsets jmp_5 |
| test_offsets cjmp_6 |
| test_offsets pjmp_7 |
| |
| .p2align 5 |
| hlt |
