projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| fa94de6b RM |
1 | .bundle_align_mode 5 |
| 2 | ||
| 3 | # We use these macros to test each pattern at every offset from | |
| 4 | # bundle alignment, i.e. [0,31]. | |
| 5 | ||
| 6 | .macro offset_insn insn_name, offset | |
| 7 | .p2align 5 | |
| 8 | \insn_name\()_offset_\offset\(): | |
| 9 | .if \offset | |
| 10 | .space \offset, 0xf4 | |
| 11 | .endif | |
| 12 | \insn_name | |
| 13 | .endm | |
| 14 | ||
| 15 | .macro test_offsets insn_name | |
| 16 | offset_insn \insn_name, 0 | |
| 17 | offset_insn \insn_name, 1 | |
| 18 | offset_insn \insn_name, 2 | |
| 19 | offset_insn \insn_name, 3 | |
| 20 | offset_insn \insn_name, 4 | |
| 21 | offset_insn \insn_name, 5 | |
| 22 | offset_insn \insn_name, 6 | |
| 23 | offset_insn \insn_name, 7 | |
| 24 | offset_insn \insn_name, 8 | |
| 25 | offset_insn \insn_name, 9 | |
| 26 | offset_insn \insn_name, 10 | |
| 27 | offset_insn \insn_name, 11 | |
| 28 | offset_insn \insn_name, 12 | |
| 29 | offset_insn \insn_name, 13 | |
| 30 | offset_insn \insn_name, 14 | |
| 31 | offset_insn \insn_name, 15 | |
| 32 | offset_insn \insn_name, 16 | |
| 33 | offset_insn \insn_name, 17 | |
| 34 | offset_insn \insn_name, 18 | |
| 35 | offset_insn \insn_name, 19 | |
| 36 | offset_insn \insn_name, 20 | |
| 37 | offset_insn \insn_name, 21 | |
| 38 | offset_insn \insn_name, 22 | |
| 39 | offset_insn \insn_name, 23 | |
| 40 | offset_insn \insn_name, 24 | |
| 41 | offset_insn \insn_name, 25 | |
| 42 | offset_insn \insn_name, 26 | |
| 43 | offset_insn \insn_name, 27 | |
| 44 | offset_insn \insn_name, 28 | |
| 45 | offset_insn \insn_name, 29 | |
| 46 | offset_insn \insn_name, 30 | |
| 47 | offset_insn \insn_name, 31 | |
| 48 | .endm | |
| 49 | ||
| 50 | # These are vanilla (non-relaxed) instructions of each length. | |
| 51 | .macro test_1 | |
| 52 | inc %eax | |
| 53 | .endm | |
| 54 | .macro test_2 | |
| 55 | add %eax,%eax | |
| 56 | .endm | |
| 57 | .macro test_3 | |
| 58 | and $3,%eax | |
| 59 | .endm | |
| 60 | .macro test_4 | |
| 61 | lock and $3,(%eax) | |
| 62 | .endm | |
| 63 | .macro test_5 | |
| 64 | mov $0xaabbccdd,%eax | |
| 65 | .endm | |
| 66 | .macro test_6 | |
| 67 | movl %eax,0xaabbccdd(%esi) | |
| 68 | .endm | |
| 69 | .macro test_7 | |
| 70 | movl $0xaabbccdd,0x7f(%esi) | |
| 71 | .endm | |
| 72 | .macro test_8 | |
| 73 | lock addl $0xaabbccdd,0x10(%esi) | |
| 74 | .endm | |
| 75 | .macro test_9 | |
| 76 | lock addl $0xaabbccdd,%fs:0x10(%esi) | |
| 77 | .endm | |
| 78 | .macro test_10 | |
| 79 | movl $0xaabbccdd,0x7ff(%esi) | |
| 80 | .endm | |
| 81 | .macro test_11 | |
| 82 | lock addl $0xaabbccdd,0x7ff(%esi) | |
| 83 | .endm | |
| 84 | .macro test_12 | |
| 85 | lock addl $0xaabbccdd,%fs:0x7ff(%esi) | |
| 86 | .endm | |
| 87 | ||
| 88 | test_offsets test_1 | |
| 89 | test_offsets test_2 | |
| 90 | test_offsets test_3 | |
| 91 | test_offsets test_4 | |
| 92 | test_offsets test_5 | |
| 93 | test_offsets test_6 | |
| 94 | test_offsets test_7 | |
| 95 | test_offsets test_8 | |
| 96 | test_offsets test_9 | |
| 97 | test_offsets test_10 | |
| 98 | test_offsets test_11 | |
| 99 | test_offsets test_12 | |
| 100 | ||
| 101 | # The only relaxation cases are the jump instructions. | |
| 102 | # For each of the three flavors of jump (unconditional, conditional, | |
| 103 | # and conditional with prediction), we test a case that can be relaxed | |
| 104 | # to its shortest form, and one that must use the long form. | |
| 105 | .macro jmp_2 | |
| 106 | jmp jmp_2_\@ | |
| 107 | movl $0xdeadbeef,%eax | |
| 108 | jmp_2_\@\(): | |
| 109 | movl $0xb00b,%eax | |
| 110 | .endm | |
| 111 | .macro jmp_5 | |
| 112 | jmp jmp_5_\@ | |
| 113 | .rept 128 | |
| 114 | inc %eax | |
| 115 | .endr | |
| 116 | jmp_5_\@\(): | |
| 117 | movl $0xb00b,%eax | |
| 118 | .endm | |
| 119 | ||
| 120 | .macro cjmp_2 | |
| 121 | jz cjmp_2_\@ | |
| 122 | movl $0xdeadbeef,%eax | |
| 123 | cjmp_2_\@\(): | |
| 124 | movl $0xb00b,%eax | |
| 125 | .endm | |
| 126 | .macro cjmp_6 | |
| 127 | jz cjmp_6_\@ | |
| 128 | .rept 128 | |
| 129 | inc %eax | |
| 130 | .endr | |
| 131 | cjmp_6_\@\(): | |
| 132 | movl $0xb00b,%eax | |
| 133 | .endm | |
| 134 | ||
| 135 | .macro pjmp_3 | |
| 136 | jz,pt pjmp_3_\@ | |
| 137 | movl $0xdeadbeef,%eax | |
| 138 | pjmp_3_\@\(): | |
| 139 | movl $0xb00b,%eax | |
| 140 | .endm | |
| 141 | .macro pjmp_7 | |
| 142 | jz,pt pjmp_7_\@ | |
| 143 | .rept 128 | |
| 144 | inc %eax | |
| 145 | .endr | |
| 146 | pjmp_7_\@\(): | |
| 147 | movl $0xb00b,%eax | |
| 148 | .endm | |
| 149 | ||
| 150 | test_offsets jmp_2 | |
| 151 | test_offsets cjmp_2 | |
| 152 | test_offsets pjmp_3 | |
| 153 | test_offsets jmp_5 | |
| 154 | test_offsets cjmp_6 | |
| 155 | test_offsets pjmp_7 | |
| 156 | ||
| 157 | .p2align 5 | |
| 158 | hlt |