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gerrit-public.fairphone.software / toolchain / llvm-project / 3da72051149e61f14cc1639b953049630f0c2a59 / . / llvm / utils / UpdateTestChecks / asm.py
blob: 7630be459ba1f3ad477ad445f436b0c55b0e037d [file] [log] [blame]
Fangrui Songee4e2e72018-01-30 00:40:05 +0000[diff] [blame]1import re
2import string
3
4from . import common
5
6# RegEx: this is where the magic happens.
7
8ASM_FUNCTION_X86_RE = re.compile(
9 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
10 r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
11 r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)',
12 flags=(re.M | re.S))
13
14ASM_FUNCTION_ARM_RE = re.compile(
15 r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function)
16 r'\s+\.fnstart\n' # .fnstart
17 r'(?P<body>.*?)\n' # (body of the function)
18 r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
19 flags=(re.M | re.S))
20
21ASM_FUNCTION_AARCH64_RE = re.compile(
22 r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@(?P=func)\n'
23 r'[ \t]+.cfi_startproc\n'
24 r'(?P<body>.*?)\n'
25 # This list is incomplete
26 r'.Lfunc_end[0-9]+:\n',
27 flags=(re.M | re.S))
28
29ASM_FUNCTION_MIPS_RE = re.compile(
30 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?' # f: (name of func)
31 r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+' # Mips+LLVM standard asm prologue
32 r'(?P<body>.*?)\n' # (body of the function)
33 r'(?:^[ \t]+\.(set|end).*?\n)+' # Mips+LLVM standard asm epilogue
34 r'(\$|\.L)func_end[0-9]+:\n', # $func_end0: (mips32 - O32) or
35 # .Lfunc_end0: (mips64 - NewABI)
36 flags=(re.M | re.S))
37
38ASM_FUNCTION_PPC_RE = re.compile(
39 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
40 r'\.Lfunc_begin[0-9]+:\n'
41 r'(?:[ \t]+.cfi_startproc\n)?'
42 r'(?:\.Lfunc_[gl]ep[0-9]+:\n(?:[ \t]+.*?\n)*)*'
43 r'(?P<body>.*?)\n'
44 # This list is incomplete
45 r'(?:^[ \t]*(?:\.long[ \t]+[^\n]+|\.quad[ \t]+[^\n]+)\n)*'
46 r'.Lfunc_end[0-9]+:\n',
47 flags=(re.M | re.S))
48
49ASM_FUNCTION_RISCV_RE = re.compile(
50 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
51 r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
52 r'.Lfunc_end[0-9]+:\n',
53 flags=(re.M | re.S))
54
55ASM_FUNCTION_SYSTEMZ_RE = re.compile(
56 r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
57 r'[ \t]+.cfi_startproc\n'
58 r'(?P<body>.*?)\n'
59 r'.Lfunc_end[0-9]+:\n',
60 flags=(re.M | re.S))
61
62
63SCRUB_LOOP_COMMENT_RE = re.compile(
64 r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)
65
66SCRUB_X86_SHUFFLES_RE = (
67 re.compile(
68 r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$',
69 flags=re.M))
70SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)')
71SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
72SCRUB_X86_LCP_RE = re.compile(r'\.LCPI[0-9]+_[0-9]+')
73SCRUB_X86_RET_RE = re.compile(r'ret[l|q]')
74
75def scrub_asm_x86(asm, args):
76 # Scrub runs of whitespace out of the assembly, but leave the leading
77 # whitespace in place.
78 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
79 # Expand the tabs used for indentation.
80 asm = string.expandtabs(asm, 2)
81 # Detect shuffle asm comments and hide the operands in favor of the comments.
82 asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
83 # Generically match the stack offset of a memory operand.
84 asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
85 # Generically match a RIP-relative memory operand.
86 asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
87 # Generically match a LCP symbol.
88 asm = SCRUB_X86_LCP_RE.sub(r'{{\.LCPI.*}}', asm)
89 if args.x86_extra_scrub:
90 # Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
91 asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm)
92 # Strip kill operands inserted into the asm.
93 asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
94 # Strip trailing whitespace.
95 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
96 return asm
97
98def scrub_asm_arm_eabi(asm, args):
99 # Scrub runs of whitespace out of the assembly, but leave the leading
100 # whitespace in place.
101 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
102 # Expand the tabs used for indentation.
103 asm = string.expandtabs(asm, 2)
104 # Strip kill operands inserted into the asm.
105 asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
106 # Strip trailing whitespace.
107 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
108 return asm
109
110def scrub_asm_powerpc64(asm, args):
111 # Scrub runs of whitespace out of the assembly, but leave the leading
112 # whitespace in place.
113 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
114 # Expand the tabs used for indentation.
115 asm = string.expandtabs(asm, 2)
116 # Stripe unimportant comments
117 asm = SCRUB_LOOP_COMMENT_RE.sub(r'', asm)
118 # Strip trailing whitespace.
119 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
120 return asm
121
122def scrub_asm_mips(asm, args):
123 # Scrub runs of whitespace out of the assembly, but leave the leading
124 # whitespace in place.
125 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
126 # Expand the tabs used for indentation.
127 asm = string.expandtabs(asm, 2)
128 # Strip trailing whitespace.
129 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
130 return asm
131
132def scrub_asm_riscv(asm, args):
133 # Scrub runs of whitespace out of the assembly, but leave the leading
134 # whitespace in place.
135 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
136 # Expand the tabs used for indentation.
137 asm = string.expandtabs(asm, 2)
138 # Strip trailing whitespace.
139 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
140 return asm
141
142def scrub_asm_systemz(asm, args):
143 # Scrub runs of whitespace out of the assembly, but leave the leading
144 # whitespace in place.
145 asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
146 # Expand the tabs used for indentation.
147 asm = string.expandtabs(asm, 2)
148 # Strip trailing whitespace.
149 asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
150 return asm
151
152
153def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, prefixes, func_dict):
154 target_handlers = {
155 'x86_64': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
156 'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
157 'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
158 'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
159 'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
160 'arm-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
161 'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
162 'thumbv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
163 'thumbv6-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
164 'thumbv6t2': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
165 'thumbv6t2-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
166 'thumbv6m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
167 'thumbv6m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
168 'thumbv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
169 'thumbv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
170 'thumbv7m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
171 'thumbv7m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
172 'thumbv8-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
173 'thumbv8m.base': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
174 'thumbv8m.main': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
175 'armv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
176 'armv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
177 'armv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
178 'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
179 'armv7eb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
180 'armv7eb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
181 'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
182 'powerpc64': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
183 'powerpc64le': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
184 'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
185 'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
186 's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
187 }
188 handlers = None
189 for prefix, s in target_handlers.items():
190 if triple.startswith(prefix):
191 handlers = s
192 break
193 else:
194 raise KeyError('Triple %r is not supported' % (triple))
195
196 scrubber, function_re = handlers
197 common.build_function_body_dictionary(
198 function_re, scrubber, [args], raw_tool_output, prefixes,
199 func_dict, args.verbose)