xref: /llvm-project/llvm/utils/UpdateTestChecks/asm.py (revision 5a4033c36716de0cee75eb28b95cce44ae239cd9)
1from __future__ import print_function
2import re
3import sys
4
5from . import common
6
7if sys.version_info[0] > 2:
8  class string:
9    expandtabs = str.expandtabs
10else:
11  import string
12
13# RegEx: this is where the magic happens.
14
15##### Assembly parser
16
17ASM_FUNCTION_X86_RE = re.compile(
18    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*(@"?(?P=func)"?| -- Begin function (?P=func))\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?'
19    r'(?:\.L[^$]+\$local:\n)?'      # drop .L<func>$local:
20    r'(?:[ \t]+.cfi_startproc\n|.seh_proc[^\n]+\n)?'  # drop optional cfi
21    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
22    r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)',
23    flags=(re.M | re.S))
24
25ASM_FUNCTION_ARM_RE = re.compile(
26    r'^(?P<func>[0-9a-zA-Z_$]+):\n' # f: (name of function)
27    r'\s+\.fnstart\n' # .fnstart
28    r'(?P<body>.*?)' # (body of the function)
29    r'^.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
30    flags=(re.M | re.S))
31
32ASM_FUNCTION_AARCH64_RE = re.compile(
33     r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@"?(?P=func)"?( (Function|Tail Call))?\n'
34     r'(?:[ \t]+.cfi_startproc\n)?'  # drop optional cfi noise
35     r'(?P<body>.*?)\n'
36     # This list is incomplete
37     r'^\s*(\.Lfunc_end[0-9]+|// -- End function)',
38     flags=(re.M | re.S))
39
40ASM_FUNCTION_AMDGPU_RE = re.compile(
41    r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?'
42    r'(?P<body>.*?)\n' # (body of the function)
43    # This list is incomplete
44    r'^\s*(\.Lfunc_end[0-9]+:\n|\.section)',
45    flags=(re.M | re.S))
46
47ASM_FUNCTION_HEXAGON_RE = re.compile(
48    r'^_?(?P<func>[^:]+):[ \t]*//[ \t]*@"?(?P=func)"?\n[^:]*?'
49    r'(?P<body>.*?)\n' # (body of the function)
50    # This list is incomplete
51    r'.Lfunc_end[0-9]+:\n',
52    flags=(re.M | re.S))
53
54ASM_FUNCTION_M68K_RE = re.compile(
55    r'^_?(?P<func>[^:]+):[ \t]*;[ \t]*@"?(?P=func)"?\n'
56    r'(?P<body>.*?)\s*' # (body of the function)
57    r'.Lfunc_end[0-9]+:\n',
58    flags=(re.M | re.S))
59
60ASM_FUNCTION_MIPS_RE = re.compile(
61    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n[^:]*?' # f: (name of func)
62    r'(?:\s*\.?Ltmp[^:\n]*:\n)?[^:]*?'        # optional .Ltmp<N> for EH
63    r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+'  # Mips+LLVM standard asm prologue
64    r'(?P<body>.*?)\n'                        # (body of the function)
65    # Mips+LLVM standard asm epilogue
66    r'(?:(^[ \t]+\.set[^\n]*?\n)*^[ \t]+\.end.*?\n)'
67    r'(\$|\.L)func_end[0-9]+:\n',             # $func_end0: (mips32 - O32) or
68                                              # .Lfunc_end0: (mips64 - NewABI)
69    flags=(re.M | re.S))
70
71ASM_FUNCTION_MSP430_RE = re.compile(
72    r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?'
73    r'(?P<body>.*?)\n'
74    r'(\$|\.L)func_end[0-9]+:\n',             # $func_end0:
75    flags=(re.M | re.S))
76
77ASM_FUNCTION_AVR_RE = re.compile(
78    r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?'
79    r'(?P<body>.*?)\n'
80    r'.Lfunc_end[0-9]+:\n',
81    flags=(re.M | re.S))
82
83ASM_FUNCTION_PPC_RE = re.compile(
84    r'#[ \-\t]*Begin function (?P<func>[^.:]+)\n'
85    r'.*?'
86    r'^[_.]?(?P=func):(?:[ \t]*#+[ \t]*@"?(?P=func)"?)?\n'
87    r'(?:^[^#]*\n)*'
88    r'(?P<body>.*?)\n'
89    # This list is incomplete
90    r'(?:^[ \t]*(?:\.(?:long|quad|v?byte)[ \t]+[^\n]+)\n)*'
91    r'(?:\.Lfunc_end|L\.\.(?P=func))[0-9]+:\n',
92    flags=(re.M | re.S))
93
94ASM_FUNCTION_RISCV_RE = re.compile(
95    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n'
96    r'(?:\s*\.?L(?P=func)\$local:\n)?'  # optional .L<func>$local: due to -fno-semantic-interposition
97    r'(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?'
98    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
99    r'.Lfunc_end[0-9]+:\n',
100    flags=(re.M | re.S))
101
102ASM_FUNCTION_LANAI_RE = re.compile(
103    r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n'
104    r'(?:[ \t]+.cfi_startproc\n)?'  # drop optional cfi noise
105    r'(?P<body>.*?)\s*'
106    r'.Lfunc_end[0-9]+:\n',
107    flags=(re.M | re.S))
108
109ASM_FUNCTION_SPARC_RE = re.compile(
110    r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n'
111    r'(?P<body>.*?)\s*'
112    r'.Lfunc_end[0-9]+:\n',
113    flags=(re.M | re.S))
114
115ASM_FUNCTION_SYSTEMZ_RE = re.compile(
116    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n'
117    r'[ \t]+.cfi_startproc\n'
118    r'(?P<body>.*?)\n'
119    r'.Lfunc_end[0-9]+:\n',
120    flags=(re.M | re.S))
121
122ASM_FUNCTION_AARCH64_DARWIN_RE = re.compile(
123    r'^_(?P<func>[^:]+):[ \t]*;[ \t]@"?(?P=func)"?\n'
124    r'([ \t]*.cfi_startproc\n[\s]*)?'
125    r'(?P<body>.*?)'
126    r'([ \t]*.cfi_endproc\n[\s]*)?'
127    r'^[ \t]*;[ \t]--[ \t]End[ \t]function',
128    flags=(re.M | re.S))
129
130ASM_FUNCTION_ARM_DARWIN_RE = re.compile(
131    r'@[ \t]--[ \t]Begin[ \t]function[ \t](?P<func>[^ \t]+?)\n'
132    r'^[ \t]*\.globl[ \t]*_(?P=func)[ \t]*'
133    r'(?P<directives>.*?)'
134    r'^_(?P=func):\n[ \t]*'
135    r'(?P<body>.*?)'
136    r'^[ \t]*@[ \t]--[ \t]End[ \t]function',
137    flags=(re.M | re.S ))
138
139ASM_FUNCTION_ARM_MACHO_RE = re.compile(
140    r'^_(?P<func>[^:]+):[ \t]*\n'
141    r'([ \t]*.cfi_startproc\n[ \t]*)?'
142    r'(?P<body>.*?)\n'
143    r'[ \t]*\.cfi_endproc\n',
144    flags=(re.M | re.S))
145
146ASM_FUNCTION_THUMBS_DARWIN_RE = re.compile(
147    r'^_(?P<func>[^:]+):\n'
148    r'(?P<body>.*?)\n'
149    r'[ \t]*\.data_region\n',
150    flags=(re.M | re.S))
151
152ASM_FUNCTION_THUMB_DARWIN_RE = re.compile(
153    r'^_(?P<func>[^:]+):\n'
154    r'(?P<body>.*?)\n'
155    r'^[ \t]*@[ \t]--[ \t]End[ \t]function',
156    flags=(re.M | re.S))
157
158ASM_FUNCTION_ARM_IOS_RE = re.compile(
159    r'^_(?P<func>[^:]+):\n'
160    r'(?P<body>.*?)'
161    r'^[ \t]*@[ \t]--[ \t]End[ \t]function',
162    flags=(re.M | re.S))
163
164ASM_FUNCTION_WASM32_RE = re.compile(
165    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n'
166    r'(?P<body>.*?)\n'
167    r'^\s*(\.Lfunc_end[0-9]+:\n|end_function)',
168    flags=(re.M | re.S))
169
170ASM_FUNCTION_VE_RE = re.compile(
171    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
172    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
173    r'.Lfunc_end[0-9]+:\n',
174    flags=(re.M | re.S))
175
176ASM_FUNCTION_CSKY_RE = re.compile(
177    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?'
178    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
179    r'.Lfunc_end[0-9]+:\n',
180    flags=(re.M | re.S))
181
182ASM_FUNCTION_NVPTX_RE = re.compile(
183    # function attributes and retval
184    # .visible .func (.param .align 16 .b8 func_retval0[32])
185    #r'^(\.visible\s+)?\.func\s+(\([^\)]*\)\s*)?'
186    r'^(\.(func|visible|weak|entry|noreturn|extern)\s+)+(\([^\)]*\)\s*)?'
187
188    # function name
189    r'(?P<func>[^\(\n]+)'
190
191    # function name separator (opening brace)
192    r'(?P<func_name_separator>\()'
193
194    # function parameters
195    # (
196    #   .param .align 16 .b8 callee_St8x4_param_0[32]
197    # ) // -- Begin function callee_St8x4
198    r'[^\)]*\)(\s*//[^\n]*)?\n'
199
200    # function body
201    r'(?P<body>.*?)\n'
202
203    # function body end marker
204    r'\s*// -- End function',
205    flags=(re.M | re.S))
206
207ASM_FUNCTION_LOONGARCH_RE = re.compile(
208    r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n'
209    r'(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?'
210    r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
211    r'.Lfunc_end[0-9]+:\n',
212    flags=(re.M | re.S))
213
214SCRUB_X86_SHUFFLES_RE = (
215    re.compile(
216        r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$',
217        flags=re.M))
218
219SCRUB_X86_SHUFFLES_NO_MEM_RE = (
220    re.compile(
221        r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = (?!.*(?:mem)).*)$',
222        flags=re.M))
223
224SCRUB_X86_SPILL_RELOAD_RE = (
225    re.compile(
226        r'-?\d+\(%([er])[sb]p\)(.*(?:Spill|Reload))$',
227        flags=re.M))
228SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)')
229SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
230SCRUB_X86_LCP_RE = re.compile(r'\.?LCPI[0-9]+_[0-9]+')
231SCRUB_X86_RET_RE = re.compile(r'ret[l|q]')
232
233def scrub_asm_x86(asm, args):
234  # Scrub runs of whitespace out of the assembly, but leave the leading
235  # whitespace in place.
236  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
237  # Expand the tabs used for indentation.
238  asm = string.expandtabs(asm, 2)
239
240  # Detect shuffle asm comments and hide the operands in favor of the comments.
241  if getattr(args, 'no_x86_scrub_mem_shuffle', True):
242    asm = SCRUB_X86_SHUFFLES_NO_MEM_RE.sub(r'\1 {{.*#+}} \2', asm)
243  else:
244    asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
245
246  # Detect stack spills and reloads and hide their exact offset and whether
247  # they used the stack pointer or frame pointer.
248  asm = SCRUB_X86_SPILL_RELOAD_RE.sub(r'{{[-0-9]+}}(%\1{{[sb]}}p)\2', asm)
249  if getattr(args, 'x86_scrub_sp', True):
250    # Generically match the stack offset of a memory operand.
251    asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
252  if getattr(args, 'x86_scrub_rip', False):
253    # Generically match a RIP-relative memory operand.
254    asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
255  # Generically match a LCP symbol.
256  asm = SCRUB_X86_LCP_RE.sub(r'{{\.?LCPI[0-9]+_[0-9]+}}', asm)
257  if getattr(args, 'extra_scrub', False):
258    # Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
259    asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm)
260  # Strip kill operands inserted into the asm.
261  asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
262  # Strip trailing whitespace.
263  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
264  return asm
265
266def scrub_asm_amdgpu(asm, args):
267  # Scrub runs of whitespace out of the assembly, but leave the leading
268  # whitespace in place.
269  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
270  # Expand the tabs used for indentation.
271  asm = string.expandtabs(asm, 2)
272  # Strip trailing whitespace.
273  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
274  return asm
275
276def scrub_asm_arm_eabi(asm, args):
277  # Scrub runs of whitespace out of the assembly, but leave the leading
278  # whitespace in place.
279  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
280  # Expand the tabs used for indentation.
281  asm = string.expandtabs(asm, 2)
282  # Strip kill operands inserted into the asm.
283  asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
284  # Strip trailing whitespace.
285  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
286  return asm
287
288def scrub_asm_hexagon(asm, args):
289  # Scrub runs of whitespace out of the assembly, but leave the leading
290  # whitespace in place.
291  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
292  # Expand the tabs used for indentation.
293  asm = string.expandtabs(asm, 2)
294  # Strip trailing whitespace.
295  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
296  return asm
297
298def scrub_asm_powerpc(asm, args):
299  # Scrub runs of whitespace out of the assembly, but leave the leading
300  # whitespace in place.
301  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
302  # Expand the tabs used for indentation.
303  asm = string.expandtabs(asm, 2)
304  # Strip unimportant comments, but leave the token '#' in place.
305  asm = common.SCRUB_LOOP_COMMENT_RE.sub(r'#', asm)
306  # Strip trailing whitespace.
307  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
308  # Strip the tailing token '#', except the line only has token '#'.
309  asm = common.SCRUB_TAILING_COMMENT_TOKEN_RE.sub(r'', asm)
310  return asm
311
312def scrub_asm_m68k(asm, args):
313  # Scrub runs of whitespace out of the assembly, but leave the leading
314  # whitespace in place.
315  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
316  # Expand the tabs used for indentation.
317  asm = string.expandtabs(asm, 2)
318  # Strip trailing whitespace.
319  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
320  return asm
321
322def scrub_asm_mips(asm, args):
323  # Scrub runs of whitespace out of the assembly, but leave the leading
324  # whitespace in place.
325  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
326  # Expand the tabs used for indentation.
327  asm = string.expandtabs(asm, 2)
328  # Strip trailing whitespace.
329  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
330  return asm
331
332def scrub_asm_msp430(asm, args):
333  # Scrub runs of whitespace out of the assembly, but leave the leading
334  # whitespace in place.
335  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
336  # Expand the tabs used for indentation.
337  asm = string.expandtabs(asm, 2)
338  # Strip trailing whitespace.
339  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
340  return asm
341
342def scrub_asm_avr(asm, args):
343  # Scrub runs of whitespace out of the assembly, but leave the leading
344  # whitespace in place.
345  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
346  # Expand the tabs used for indentation.
347  asm = string.expandtabs(asm, 2)
348  # Strip trailing whitespace.
349  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
350  return asm
351
352def scrub_asm_riscv(asm, args):
353  # Scrub runs of whitespace out of the assembly, but leave the leading
354  # whitespace in place.
355  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
356  # Expand the tabs used for indentation.
357  asm = string.expandtabs(asm, 2)
358  # Strip trailing whitespace.
359  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
360  return asm
361
362def scrub_asm_lanai(asm, args):
363  # Scrub runs of whitespace out of the assembly, but leave the leading
364  # whitespace in place.
365  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
366  # Expand the tabs used for indentation.
367  asm = string.expandtabs(asm, 2)
368  # Strip trailing whitespace.
369  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
370  return asm
371
372def scrub_asm_sparc(asm, args):
373  # Scrub runs of whitespace out of the assembly, but leave the leading
374  # whitespace in place.
375  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
376  # Expand the tabs used for indentation.
377  asm = string.expandtabs(asm, 2)
378  # Strip trailing whitespace.
379  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
380  return asm
381
382def scrub_asm_systemz(asm, args):
383  # Scrub runs of whitespace out of the assembly, but leave the leading
384  # whitespace in place.
385  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
386  # Expand the tabs used for indentation.
387  asm = string.expandtabs(asm, 2)
388  # Strip trailing whitespace.
389  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
390  return asm
391
392def scrub_asm_wasm32(asm, args):
393  # Scrub runs of whitespace out of the assembly, but leave the leading
394  # whitespace in place.
395  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
396  # Expand the tabs used for indentation.
397  asm = string.expandtabs(asm, 2)
398  # Strip trailing whitespace.
399  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
400  return asm
401
402def scrub_asm_ve(asm, args):
403  # Scrub runs of whitespace out of the assembly, but leave the leading
404  # whitespace in place.
405  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
406  # Expand the tabs used for indentation.
407  asm = string.expandtabs(asm, 2)
408  # Strip trailing whitespace.
409  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
410  return asm
411
412def scrub_asm_csky(asm, args):
413  # Scrub runs of whitespace out of the assembly, but leave the leading
414  # whitespace in place.
415  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
416  # Expand the tabs used for indentation.
417  asm = string.expandtabs(asm, 2)
418  # Strip kill operands inserted into the asm.
419  asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
420  # Strip trailing whitespace.
421  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
422  return asm
423
424def scrub_asm_nvptx(asm, args):
425  # Scrub runs of whitespace out of the assembly, but leave the leading
426  # whitespace in place.
427  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
428  # Expand the tabs used for indentation.
429  asm = string.expandtabs(asm, 2)
430  # Strip trailing whitespace.
431  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
432  return asm
433
434def scrub_asm_loongarch(asm, args):
435  # Scrub runs of whitespace out of the assembly, but leave the leading
436  # whitespace in place.
437  asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
438  # Expand the tabs used for indentation.
439  asm = string.expandtabs(asm, 2)
440  # Strip trailing whitespace.
441  asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
442  return asm
443
444# Returns a tuple of a scrub function and a function regex. Scrub function is
445# used to alter function body in some way, for example, remove trailing spaces.
446# Function regex is used to match function name, body, etc. in raw llc output.
447def get_run_handler(triple):
448  target_handlers = {
449      'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
450      'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
451      'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
452      'arm64_32-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
453      'arm64_32-apple-watchos2.0.0': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
454      'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
455      'aarch64-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
456      'aarch64-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
457      'hexagon': (scrub_asm_hexagon, ASM_FUNCTION_HEXAGON_RE),
458      'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
459      'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
460      'arm': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
461      'arm64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
462      'arm64e': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
463      'arm64-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
464      'armv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE),
465      'armv7-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_DARWIN_RE),
466      'thumb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
467      'thumb-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE),
468      'thumbv5-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE),
469      'thumbv7s-apple-darwin' : (scrub_asm_arm_eabi, ASM_FUNCTION_THUMBS_DARWIN_RE),
470      'thumbv7-apple-darwin' : (scrub_asm_arm_eabi, ASM_FUNCTION_THUMB_DARWIN_RE),
471      'thumbv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE),
472      'm68k': (scrub_asm_m68k, ASM_FUNCTION_M68K_RE),
473      'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
474      'msp430': (scrub_asm_msp430, ASM_FUNCTION_MSP430_RE),
475      'avr': (scrub_asm_avr, ASM_FUNCTION_AVR_RE),
476      'ppc32': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE),
477      'powerpc': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE),
478      'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
479      'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
480      'lanai': (scrub_asm_lanai, ASM_FUNCTION_LANAI_RE),
481      'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
482      's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
483      'wasm32': (scrub_asm_wasm32, ASM_FUNCTION_WASM32_RE),
484      've': (scrub_asm_ve, ASM_FUNCTION_VE_RE),
485      'csky': (scrub_asm_csky, ASM_FUNCTION_CSKY_RE),
486      'nvptx': (scrub_asm_nvptx, ASM_FUNCTION_NVPTX_RE),
487      'loongarch32': (scrub_asm_loongarch, ASM_FUNCTION_LOONGARCH_RE),
488      'loongarch64': (scrub_asm_loongarch, ASM_FUNCTION_LOONGARCH_RE)
489  }
490  handler = None
491  best_prefix = ''
492  for prefix, s in target_handlers.items():
493    if triple.startswith(prefix) and len(prefix) > len(best_prefix):
494      handler = s
495      best_prefix = prefix
496
497  if handler is None:
498    raise KeyError('Triple %r is not supported' % (triple))
499
500  return handler
501
502##### Generator of assembly CHECK lines
503
504def add_checks(output_lines, comment_marker, prefix_list, func_dict,
505               func_name, global_vars_seen_dict, is_filtered):
506  # Label format is based on ASM string.
507  check_label_format = '{} %s-LABEL: %s%s%s'.format(comment_marker)
508  return common.add_checks(output_lines, comment_marker, prefix_list, func_dict,
509                           func_name, check_label_format, True, False,
510                           global_vars_seen_dict, is_filtered=is_filtered)
511