llvm/utils/UpdateTestChecks/asm.py

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