mirror of
https://github.com/RPCS3/llvm-mirror.git
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63c8773887
This change introduces two fixes. The second fix allows to generate a test to check the first fix. - Output `CHECK-EMPTY` prefix for an empty line in ASM output. Before that fix `update_llc_test_checks.py` incorrectly emits `CHECK-NEXT: <space>` prefix. - Fix the `ASM_FUNCTION_MIPS_RE` regex to stop on a real function epilogue not on an inline assembler prologue and include inline assembler code into a test. Differential Revision: https://reviews.llvm.org/D47192
366 lines
13 KiB
Python
366 lines
13 KiB
Python
from __future__ import print_function
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import re
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import sys
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from . import common
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if sys.version_info[0] > 2:
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class string:
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expandtabs = str.expandtabs
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else:
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import string
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# RegEx: this is where the magic happens.
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##### Assembly parser
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ASM_FUNCTION_X86_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?'
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r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
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r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)',
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flags=(re.M | re.S))
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ASM_FUNCTION_ARM_RE = re.compile(
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r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function)
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r'\s+\.fnstart\n' # .fnstart
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r'(?P<body>.*?)\n' # (body of the function)
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r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function
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flags=(re.M | re.S))
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ASM_FUNCTION_AARCH64_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@(?P=func)\n'
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r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise
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r'(?P<body>.*?)\n'
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# This list is incomplete
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_AMDGPU_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@(?P=func)\n[^:]*?'
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r'(?P<body>.*?)\n' # (body of the function)
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# This list is incomplete
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r'^\s*(\.Lfunc_end[0-9]+:\n|\.section)',
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flags=(re.M | re.S))
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ASM_FUNCTION_HEXAGON_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*//[ \t]*@(?P=func)\n[^:]*?'
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r'(?P<body>.*?)\n' # (body of the function)
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# This list is incomplete
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_MIPS_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n[^:]*?' # f: (name of func)
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r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+' # Mips+LLVM standard asm prologue
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r'(?P<body>.*?)\n' # (body of the function)
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# Mips+LLVM standard asm epilogue
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r'(?:(^[ \t]+\.set[^\n]*?\n)*^[ \t]+\.end.*?\n)'
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r'(\$|\.L)func_end[0-9]+:\n', # $func_end0: (mips32 - O32) or
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# .Lfunc_end0: (mips64 - NewABI)
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flags=(re.M | re.S))
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ASM_FUNCTION_MSP430_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@(?P=func)\n[^:]*?'
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r'(?P<body>.*?)\n'
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r'(\$|\.L)func_end[0-9]+:\n', # $func_end0:
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flags=(re.M | re.S))
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ASM_FUNCTION_PPC_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
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r'.*?'
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r'\.Lfunc_begin[0-9]+:\n'
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r'(?:[ \t]+.cfi_startproc\n)?'
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r'(?:\.Lfunc_[gl]ep[0-9]+:\n(?:[ \t]+.*?\n)*)*'
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r'(?P<body>.*?)\n'
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# This list is incomplete
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r'(?:^[ \t]*(?:\.long[ \t]+[^\n]+|\.quad[ \t]+[^\n]+)\n)*'
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_RISCV_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?'
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r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*'
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_LANAI_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@(?P=func)\n'
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r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise
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r'(?P<body>.*?)\s*'
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_SPARC_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@(?P=func)\n'
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r'(?P<body>.*?)\s*'
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_SYSTEMZ_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
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r'[ \t]+.cfi_startproc\n'
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r'(?P<body>.*?)\n'
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r'.Lfunc_end[0-9]+:\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_AARCH64_DARWIN_RE = re.compile(
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r'^_(?P<func>[^:]+):[ \t]*;[ \t]@(?P=func)\n'
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r'([ \t]*.cfi_startproc\n[\s]*)?'
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r'(?P<body>.*?)'
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r'([ \t]*.cfi_endproc\n[\s]*)?'
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r'^[ \t]*;[ \t]--[ \t]End[ \t]function',
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flags=(re.M | re.S))
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ASM_FUNCTION_ARM_DARWIN_RE = re.compile(
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r'^[ \t]*\.globl[ \t]*_(?P<func>[^ \t])[ \t]*@[ \t]--[ \t]Begin[ \t]function[ \t](?P=func)'
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r'(?P<directives>.*?)'
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r'^_(?P=func):\n[ \t]*'
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r'(?P<body>.*?)'
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r'^[ \t]*@[ \t]--[ \t]End[ \t]function',
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flags=(re.M | re.S ))
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ASM_FUNCTION_ARM_MACHO_RE = re.compile(
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r'^_(?P<func>[^:]+):[ \t]*\n'
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r'([ \t]*.cfi_startproc\n[ \t]*)?'
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r'(?P<body>.*?)\n'
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r'[ \t]*\.cfi_endproc\n',
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flags=(re.M | re.S))
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ASM_FUNCTION_ARM_IOS_RE = re.compile(
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r'^_(?P<func>[^:]+):[ \t]*\n'
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r'^Lfunc_begin(?P<id>[0-9][1-9]*):\n'
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r'(?P<body>.*?)'
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r'^Lfunc_end(?P=id):\n'
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r'^[ \t]*@[ \t]--[ \t]End[ \t]function',
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flags=(re.M | re.S))
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ASM_FUNCTION_WASM32_RE = re.compile(
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r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@(?P=func)\n'
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r'(?P<body>.*?)\n'
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r'^\s*(\.Lfunc_end[0-9]+:\n|end_function)',
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flags=(re.M | re.S))
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SCRUB_LOOP_COMMENT_RE = re.compile(
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r'# =>This Inner Loop Header:.*|# in Loop:.*', flags=re.M)
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SCRUB_X86_SHUFFLES_RE = (
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re.compile(
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r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$',
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flags=re.M))
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SCRUB_X86_SPILL_RELOAD_RE = (
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re.compile(
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r'-?\d+\(%([er])[sb]p\)(.*(?:Spill|Reload))$',
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flags=re.M))
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SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)')
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SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)')
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SCRUB_X86_LCP_RE = re.compile(r'\.LCPI[0-9]+_[0-9]+')
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SCRUB_X86_RET_RE = re.compile(r'ret[l|q]')
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def scrub_asm_x86(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Detect shuffle asm comments and hide the operands in favor of the comments.
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asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm)
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# Detect stack spills and reloads and hide their exact offset and whether
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# they used the stack pointer or frame pointer.
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asm = SCRUB_X86_SPILL_RELOAD_RE.sub(r'{{[-0-9]+}}(%\1{{[sb]}}p)\2', asm)
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# Generically match the stack offset of a memory operand.
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asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm)
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if getattr(args, 'x86_scrub_rip', False):
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# Generically match a RIP-relative memory operand.
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asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm)
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# Generically match a LCP symbol.
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asm = SCRUB_X86_LCP_RE.sub(r'{{\.LCPI.*}}', asm)
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if getattr(args, 'extra_scrub', False):
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# Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'.
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asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm)
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# Strip kill operands inserted into the asm.
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asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_amdgpu(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_arm_eabi(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip kill operands inserted into the asm.
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asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_hexagon(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_powerpc(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Stripe unimportant comments, but leave the token '#' in place.
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asm = SCRUB_LOOP_COMMENT_RE.sub(r'#', asm)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_mips(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_msp430(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_riscv(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_lanai(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_sparc(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_systemz(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def scrub_asm_wasm32(asm, args):
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# Scrub runs of whitespace out of the assembly, but leave the leading
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# whitespace in place.
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asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm)
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# Expand the tabs used for indentation.
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asm = string.expandtabs(asm, 2)
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# Strip trailing whitespace.
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asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm)
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return asm
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def get_triple_from_march(march):
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triples = {
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'amdgcn': 'amdgcn',
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'r600': 'r600',
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'mips': 'mips',
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'sparc': 'sparc',
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'hexagon': 'hexagon',
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}
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for prefix, triple in triples.items():
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if march.startswith(prefix):
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return triple
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print("Cannot find a triple. Assume 'x86'", file=sys.stderr)
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return 'x86'
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def build_function_body_dictionary_for_triple(args, raw_tool_output, triple, prefixes, func_dict):
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target_handlers = {
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'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
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'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
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'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE),
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'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
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'aarch64-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
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'hexagon': (scrub_asm_hexagon, ASM_FUNCTION_HEXAGON_RE),
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'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
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'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE),
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'arm': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
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'arm64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE),
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'arm64-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE),
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'armv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE),
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'armv7-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_DARWIN_RE),
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'thumb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE),
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'thumb-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE),
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'thumbv5-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE),
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'thumbv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE),
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'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE),
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'msp430': (scrub_asm_msp430, ASM_FUNCTION_MSP430_RE),
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'ppc32': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE),
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'powerpc': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE),
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'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
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'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE),
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'lanai': (scrub_asm_lanai, ASM_FUNCTION_LANAI_RE),
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'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE),
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's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE),
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'wasm32': (scrub_asm_wasm32, ASM_FUNCTION_WASM32_RE),
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}
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handler = None
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best_prefix = ''
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for prefix, s in target_handlers.items():
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if triple.startswith(prefix) and len(prefix) > len(best_prefix):
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handler = s
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best_prefix = prefix
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if handler is None:
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raise KeyError('Triple %r is not supported' % (triple))
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scrubber, function_re = handler
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common.build_function_body_dictionary(
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function_re, scrubber, [args], raw_tool_output, prefixes,
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func_dict, args.verbose, False)
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##### Generator of assembly CHECK lines
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def add_asm_checks(output_lines, comment_marker, prefix_list, func_dict, func_name):
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# Label format is based on ASM string.
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check_label_format = '{} %s-LABEL: %s%s:'.format(comment_marker)
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common.add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, True, False)
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