utils/UpdateTestChecks/asm.py - llvm - Git at Google

 import re
 import sys

 from . import common

 if sys.version_info[0] > 2:
   class string:
     expandtabs = str.expandtabs
 else:
   import string

 # RegEx: this is where the magic happens.

 ##### Assembly parser

 ASM_FUNCTION_X86_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n(?:\s*.Lfunc_begin[^:\n]*:\n)?[^:]*?'
     r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
     r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)',
     flags=(re.M | re.S))

 ASM_FUNCTION_ARM_RE = re.compile(
         r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function)
         r'\s+\.fnstart\n' # .fnstart
         r'(?P<body>.*?)\n' # (body of the function)
         r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
         flags=(re.M | re.S))

 ASM_FUNCTION_AARCH64_RE = re.compile(
      r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@(?P=func)\n'
      r'(?:[ \t]+.cfi_startproc\n)?'  # drop optional cfi noise
      r'(?P<body>.*?)\n'
      # This list is incomplete
      r'.Lfunc_end[0-9]+:\n',
      flags=(re.M | re.S))

 ASM_FUNCTION_AMDGPU_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@(?P=func)\n[^:]*?'
     r'(?P<body>.*?)\n' # (body of the function)
     # This list is incomplete
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))

 ASM_FUNCTION_MIPS_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?' # f: (name of func)
     r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+'  # Mips+LLVM standard asm prologue
     r'(?P<body>.*?)\n'                        # (body of the function)
     r'(?:^[ \t]+\.(set|end).*?\n)+'           # Mips+LLVM standard asm epilogue
     r'(\$|\.L)func_end[0-9]+:\n',             # $func_end0: (mips32 - O32) or
                                               # .Lfunc_end0: (mips64 - NewABI)
     flags=(re.M | re.S))

 ASM_FUNCTION_PPC_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
     r'.*?'
     r'\.Lfunc_begin[0-9]+:\n'
     r'(?:[ \t]+.cfi_startproc\n)?'
     r'(?:\.Lfunc_[gl]ep[0-9]+:\n(?:[ \t]+.*?\n)*)*'
     r'(?P<body>.*?)\n'
     # This list is incomplete
     r'(?:^[ \t]*(?:\.long[ \t]+[^\n]+|\.quad[ \t]+[^\n]+)\n)*'
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))

 ASM_FUNCTION_RISCV_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?'
     r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))

 ASM_FUNCTION_SPARC_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@(?P=func)\n'
     r'(?P<body>.*?)\s*'
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))

 ASM_FUNCTION_SYSTEMZ_RE = re.compile(
     r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
     r'[ \t]+.cfi_startproc\n'
     r'(?P<body>.*?)\n'
     r'.Lfunc_end[0-9]+:\n',
     flags=(re.M | re.S))


 SCRUB_LOOP_COMMENT_RE = re.compile(
     r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)

 SCRUB_X86_SHUFFLES_RE = (
     re.compile(
         r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$',
         flags=re.M))
 SCRUB_X86_SPILL_RELOAD_RE = (
     re.compile(
         r'-?\d+\(%([er])[sb]p\)(.*(?:Spill|Reload))$',
         flags=re.M))
 SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)')
 SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
 SCRUB_X86_LCP_RE = re.compile(r'\.LCPI[0-9]+_[0-9]+')
 SCRUB_X86_RET_RE = re.compile(r'ret[l|q]')

 def scrub_asm_x86(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Detect shuffle asm comments and hide the operands in favor of the comments.
   asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
   # Detect stack spills and reloads and hide their exact offset and whether
   # they used the stack pointer or frame pointer.
   asm = SCRUB_X86_SPILL_RELOAD_RE.sub(r'{{[-0-9]+}}(%\1{{[sb]}}p)\2', asm)
   # Generically match the stack offset of a memory operand.
   asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
   if getattr(args, 'x86_scrub_rip', False):
     # Generically match a RIP-relative memory operand.
     asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
   # Generically match a LCP symbol.
   asm = SCRUB_X86_LCP_RE.sub(r'{{\.LCPI.*}}', asm)
   if getattr(args, 'extra_scrub', False):
     # Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
     asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm)
   # Strip kill operands inserted into the asm.
   asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_amdgpu(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_arm_eabi(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip kill operands inserted into the asm.
   asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_powerpc64(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Stripe unimportant comments
   asm = SCRUB_LOOP_COMMENT_RE.sub(r'', asm)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_mips(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_riscv(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_sparc(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm

 def scrub_asm_systemz(asm, args):
   # Scrub runs of whitespace out of the assembly, but leave the leading
   # whitespace in place.
   asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
   # Expand the tabs used for indentation.
   asm = string.expandtabs(asm, 2)
   # Strip trailing whitespace.
   asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
   return asm


 def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, prefixes, func_dict):
   target_handlers = {
       'x86_64': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
       'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
       'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
       'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
       'arm-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6t2': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6t2-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv6m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv7m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv7m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv8-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv8m.base': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'thumbv8m.main': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv7eb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv7eb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'armv8a': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
       'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
       'powerpc64': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
       'powerpc64le': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
       'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
       'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
       'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
       'sparcv9': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
       's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
   }
   handlers = None
   for prefix, s in target_handlers.items():
     if triple.startswith(prefix):
       handlers = s
       break
   else:
     raise KeyError('Triple %r is not supported' % (triple))

   scrubber, function_re = handlers
   common.build_function_body_dictionary(
           function_re, scrubber, [args], raw_tool_output, prefixes,
           func_dict, args.verbose)

 ##### Generator of assembly CHECK lines

 def add_asm_checks(output_lines, comment_marker, prefix_list, func_dict, func_name):
   # Label format is based on ASM string.
   check_label_format = '{} %s-LABEL: %s:'.format(comment_marker)
   common.add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, True, False)
	import re
	import sys

	from . import common

	if sys.version_info[0] > 2:
	class string:
	expandtabs = str.expandtabs
	else:
	import string

	# RegEx: this is where the magic happens.

	##### Assembly parser

	ASM_FUNCTION_X86_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]#+[ \t]@(?P=func)\n(?:\s.Lfunc_begin[^:\n]:\n)?[^:]*?'
	r'(?P<body>^##?[ \t]+[^:]+:.?)\s'
	r'^\s(?:[^:\n]+?:\s\n\s*\.size\|\.cfi_endproc\|\.globl\|\.comm\|\.(?:sub)?section\|#+ -- End function)',
	flags=(re.M \| re.S))

	ASM_FUNCTION_ARM_RE = re.compile(
	r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function)
	r'\s+\.fnstart\n' # .fnstart
	r'(?P<body>.*?)\n' # (body of the function)
	r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
	flags=(re.M \| re.S))

	ASM_FUNCTION_AARCH64_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]\/\/[ \t]@(?P=func)\n'
	r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise
	r'(?P<body>.*?)\n'
	# This list is incomplete
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))

	ASM_FUNCTION_AMDGPU_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t];+[ \t]@(?P=func)\n[^:]*?'
	r'(?P<body>.*?)\n' # (body of the function)
	# This list is incomplete
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))

	ASM_FUNCTION_MIPS_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]#+[ \t]@(?P=func)\n[^:]*?' # f: (name of func)
	r'(?:^[ \t]+\.(frame\|f?mask\|set).*?\n)+' # Mips+LLVM standard asm prologue
	r'(?P<body>.*?)\n' # (body of the function)
	r'(?:^[ \t]+\.(set\|end).*?\n)+' # Mips+LLVM standard asm epilogue
	r'(\$\|\.L)func_end[0-9]+:\n', # $func_end0: (mips32 - O32) or
	# .Lfunc_end0: (mips64 - NewABI)
	flags=(re.M \| re.S))

	ASM_FUNCTION_PPC_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]#+[ \t]@(?P=func)\n'
	r'.*?'
	r'\.Lfunc_begin[0-9]+:\n'
	r'(?:[ \t]+.cfi_startproc\n)?'
	r'(?:\.Lfunc_[gl]ep[0-9]+:\n(?:[ \t]+.?\n))*'
	r'(?P<body>.*?)\n'
	# This list is incomplete
	r'(?:^[ \t](?:\.long[ \t]+[^\n]+\|\.quad[ \t]+[^\n]+)\n)'
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))

	ASM_FUNCTION_RISCV_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]#+[ \t]@(?P=func)\n[^:]*?'
	r'(?P<body>^##?[ \t]+[^:]+:.?)\s'
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))

	ASM_FUNCTION_SPARC_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]!+[ \t]@(?P=func)\n'
	r'(?P<body>.?)\s'
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))

	ASM_FUNCTION_SYSTEMZ_RE = re.compile(
	r'^_?(?P<func>[^:]+):[ \t]#+[ \t]@(?P=func)\n'
	r'[ \t]+.cfi_startproc\n'
	r'(?P<body>.*?)\n'
	r'.Lfunc_end[0-9]+:\n',
	flags=(re.M \| re.S))


	SCRUB_LOOP_COMMENT_RE = re.compile(
	r'# =>This Inner Loop Header:.\|# in Loop:.', flags=re.M)

	SCRUB_X86_SHUFFLES_RE = (
	re.compile(
	r'^(\s\w+) [^#\n]+#+ ((?:[xyz]mm\d+\|mem)( \{%k\d+\}( \{z\})?)? = .)$',
	flags=re.M))
	SCRUB_X86_SPILL_RELOAD_RE = (
	re.compile(
	r'-?\d+\(%([er])[sb]p\)(.*(?:Spill\|Reload))$',
	flags=re.M))
	SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp\|rsp)\)')
	SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
	SCRUB_X86_LCP_RE = re.compile(r'\.LCPI[0-9]+_[0-9]+')
	SCRUB_X86_RET_RE = re.compile(r'ret[l\|q]')

	def scrub_asm_x86(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Detect shuffle asm comments and hide the operands in favor of the comments.
	asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
	# Detect stack spills and reloads and hide their exact offset and whether
	# they used the stack pointer or frame pointer.
	asm = SCRUB_X86_SPILL_RELOAD_RE.sub(r'{{[-0-9]+}}(%\1{{[sb]}}p)\2', asm)
	# Generically match the stack offset of a memory operand.
	asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
	if getattr(args, 'x86_scrub_rip', False):
	# Generically match a RIP-relative memory operand.
	asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
	# Generically match a LCP symbol.
	asm = SCRUB_X86_LCP_RE.sub(r'{{\.LCPI.*}}', asm)
	if getattr(args, 'extra_scrub', False):
	# Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
	asm = SCRUB_X86_RET_RE.sub(r'ret{{[l\|q]}}', asm)
	# Strip kill operands inserted into the asm.
	asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_amdgpu(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_arm_eabi(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip kill operands inserted into the asm.
	asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_powerpc64(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Stripe unimportant comments
	asm = SCRUB_LOOP_COMMENT_RE.sub(r'', asm)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_mips(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_riscv(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_sparc(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm

	def scrub_asm_systemz(asm, args):
	# Scrub runs of whitespace out of the assembly, but leave the leading
	# whitespace in place.
	asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
	# Expand the tabs used for indentation.
	asm = string.expandtabs(asm, 2)
	# Strip trailing whitespace.
	asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
	return asm


	def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, prefixes, func_dict):
	target_handlers = {
	'x86_64': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
	'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
	'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
	'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
	'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
	'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
	'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
	'arm-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6t2': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6t2-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv6m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv7m': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv7m-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv8-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv8m.base': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'thumbv8m.main': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv6': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv7': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv7-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armeb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv7eb-eabi': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv7eb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'armv8a': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
	'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
	'powerpc64': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
	'powerpc64le': (scrub_asm_powerpc64, ASM_FUNCTION_PPC_RE),
	'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
	'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
	'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
	'sparcv9': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
	's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
	}
	handlers = None
	for prefix, s in target_handlers.items():
	if triple.startswith(prefix):
	handlers = s
	break
	else:
	raise KeyError('Triple %r is not supported' % (triple))

	scrubber, function_re = handlers
	common.build_function_body_dictionary(
	function_re, scrubber, [args], raw_tool_output, prefixes,
	func_dict, args.verbose)

	##### Generator of assembly CHECK lines

	def add_asm_checks(output_lines, comment_marker, prefix_list, func_dict, func_name):
	# Label format is based on ASM string.
	check_label_format = '{} %s-LABEL: %s:'.format(comment_marker)
	common.add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, True, False)