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 | clc | |
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,(%rax) | |
62 | .endm | |
63 | .macro test_5 | |
64 | mov $0x11223344,%eax | |
65 | .endm | |
66 | .macro test_6 | |
67 | movl %eax,0x11223344(%rsi) | |
68 | .endm | |
69 | .macro test_7 | |
70 | movl $0x11223344,0x7f(%rsi) | |
71 | .endm | |
72 | .macro test_8 | |
73 | lock addl $0x11223344,0x10(%rsi) | |
74 | .endm | |
75 | .macro test_9 | |
76 | lock addl $0x11223344,%fs:0x10(%rsi) | |
77 | .endm | |
78 | .macro test_10 | |
79 | movl $0x11223344,0x7ff(%rsi) | |
80 | .endm | |
81 | .macro test_11 | |
82 | lock addl $0x11223344,0x7ff(%rsi) | |
83 | .endm | |
84 | .macro test_12 | |
85 | lock addl $0x11223344,%fs:0x7ff(%rsi) | |
86 | .endm | |
87 | .macro test_13 | |
88 | lock addl $0x11223344,%fs:0x7ff(%r11) | |
89 | .endm | |
90 | ||
91 | test_offsets test_1 | |
92 | test_offsets test_2 | |
93 | test_offsets test_3 | |
94 | test_offsets test_4 | |
95 | test_offsets test_5 | |
96 | test_offsets test_6 | |
97 | test_offsets test_7 | |
98 | test_offsets test_8 | |
99 | test_offsets test_9 | |
100 | test_offsets test_10 | |
101 | test_offsets test_11 | |
102 | test_offsets test_12 | |
103 | test_offsets test_13 | |
104 | ||
105 | # The only relaxation cases are the jump instructions. | |
106 | # For each of the three flavors of jump (unconditional, conditional, | |
107 | # and conditional with prediction), we test a case that can be relaxed | |
108 | # to its shortest form, and one that must use the long form. | |
109 | .macro jmp_2 | |
110 | jmp jmp_2_\@ | |
111 | movl $0xdeadbeef,%eax | |
112 | jmp_2_\@\(): | |
113 | movl $0xb00b,%eax | |
114 | .endm | |
115 | .macro jmp_5 | |
116 | jmp jmp_5_\@ | |
117 | .rept 128 | |
118 | clc | |
119 | .endr | |
120 | jmp_5_\@\(): | |
121 | movl $0xb00b,%eax | |
122 | .endm | |
123 | ||
124 | .macro cjmp_2 | |
125 | jz cjmp_2_\@ | |
126 | movl $0xdeadbeef,%eax | |
127 | cjmp_2_\@\(): | |
128 | movl $0xb00b,%eax | |
129 | .endm | |
130 | .macro cjmp_6 | |
131 | jz cjmp_6_\@ | |
132 | .rept 128 | |
133 | clc | |
134 | .endr | |
135 | cjmp_6_\@\(): | |
136 | movl $0xb00b,%eax | |
137 | .endm | |
138 | ||
139 | .macro pjmp_3 | |
140 | jz,pt pjmp_3_\@ | |
141 | movl $0xdeadbeef,%eax | |
142 | pjmp_3_\@\(): | |
143 | movl $0xb00b,%eax | |
144 | .endm | |
145 | .macro pjmp_7 | |
146 | jz,pt pjmp_7_\@ | |
147 | .rept 128 | |
148 | clc | |
149 | .endr | |
150 | pjmp_7_\@\(): | |
151 | movl $0xb00b,%eax | |
152 | .endm | |
153 | ||
154 | test_offsets jmp_2 | |
155 | test_offsets cjmp_2 | |
156 | test_offsets pjmp_3 | |
157 | test_offsets jmp_5 | |
158 | test_offsets cjmp_6 | |
159 | test_offsets pjmp_7 | |
160 | ||
161 | .p2align 5 | |
162 | hlt |