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https://github.com/Gericom/teak-llvm.git
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ee6539341b
Summary: SCRUB_LOOP_COMMENT_RE was introduced in https://reviews.llvm.org/D31285 This works for some loops. However, we may generate lines with loop comments only. And since we don't scrub leading white spaces, this will leave an empty line there, and FileCheck will complain it. eg: llvm/test/CodeGen/PowerPC/PR35812-neg-cmpxchg.ll:27:15: error: found empty check string with prefix 'CHECK:' ; CHECK-NEXT: This prevented us from using the `update_llc_test_checks.py` for quite some cases. We should still keep the comment token there, so that we can safely scrub the loop comment without breaking FileCheck. Reviewers: timshen, hfinkel, lebedev.ri, RKSimon Subscribers: nemanjai, jfb, llvm-commits Tags: #llvm Differential Revision: https://reviews.llvm.org/D63957 llvm-svn: 364775
348 lines
13 KiB
Python
348 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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r'(?:^[ \t]+\.(set|end).*?\n)+' # Mips+LLVM standard asm epilogue
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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_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[^:]*?'
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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'.Lfunc_end[0-9]+:\n',
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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_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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'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)
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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:'.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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