e5305c249b
Add new immediate types for floating point and vector immediates. Use new immediates to define the constant value instructions in meta. Split the fconst instruction into two: f32const and f64const. This prevents confusion about the interpretation of 64 immediate bits when generating an f32 constant. Add an immvector ImmediateType. This immediate type is variable length, and provides all the bits of a SIMD vector directly.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Pygments lexer for Cretonne.
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from pygments.lexer import RegexLexer, bygroups, words
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from pygments.token import *
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def keywords(*args):
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return words(args, prefix=r'\b', suffix=r'\b')
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class CretonneLexer(RegexLexer):
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name = 'Cretonne'
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aliases = ['cton']
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filenames = ['*.cton']
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tokens = {
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'root': [
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(r';.*?$', Comment.Single),
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# Strings are in double quotes, support \xx escapes only.
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(r'"([^"\\]+|\\[0-9a-fA-F]{2})*"', String),
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# A naked function name following 'function' is also a string.
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(r'\b(function)([ \t]+)(\w+)\b', bygroups(Keyword, Whitespace, String.Symbol)),
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# Numbers.
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(r'[-+]?0[xX][0-9a-fA-F]+', Number.Hex),
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(r'[-+]?0[xX][0-9a-fA-F]*\.[0-9a-fA-F]*([pP]\d+)?', Number.Hex),
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(r'[-+]?(\d+\.\d+([eE]\d+)?|[sq]NaN|Inf)', Number.Float),
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(r'[-+]?\d+', Number.Integer),
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# Reserved words.
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(keywords('function', 'entry'), Keyword),
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# Known attributes.
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(keywords('align', 'aligntrap', 'uext', 'sext', 'inreg'), Name.Attribute),
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# Well known value types.
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(r'\b(bool|i\d+|f32|f64)(x\d+)?\b', Keyword.Type),
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# v<nn> = value
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# ss<nn> = stack slot
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(r'(v|ss)\d+', Name.Variable),
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# ebb<nn> = extended basic block
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(r'(ebb)\d+', Name.Label),
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# Match instruction names in context.
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(r'(=)( *)([a-z]\w*)', bygroups(Operator, Whitespace, Name.Function)),
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(r'^( *)([a-z]\w*\b)(?! *[,=])', bygroups(Whitespace, Name.Function)),
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# Other names: results and arguments
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(r'[a-z]\w*', Name),
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(r'->|=|:', Operator),
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(r'[{}(),.]', Punctuation),
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(r'[ \t]+', Text),
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]
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}
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def setup(app):
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"""Setup Sphinx extension."""
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app.add_lexer('cton', CretonneLexer())
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return { 'version' : '0.1' }
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