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[LangRef] PR22118: Hyphen is allowed in IR identifiers. 

E.g. %-foo and %fo-o.

Thanks to eagle-eyed reporter Tomas Brukner.

llvm-svn: 225400
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Sean Silva 2015-01-07 21:35:14 +00:00
parent d88af278b9
commit 9d01a5b5e4
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llvm/docs/LangRef.rst
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@ -75,7 +75,7 @@ identifiers, for different purposes:
#. Named values are represented as a string of characters with their #. Named values are represented as a string of characters with their
prefix. For example, ``%foo``, ``@DivisionByZero``, prefix. For example, ``%foo``, ``@DivisionByZero``,
``%a.really.long.identifier``. The actual regular expression used is ``%a.really.long.identifier``. The actual regular expression used is
'``[%@][a-zA-Z$._][a-zA-Z$._0-9]*``'. Identifiers that require other '``[%@][-a-zA-Z$._][-a-zA-Z$._0-9]*``'. Identifiers that require other
characters in their names can be surrounded with quotes. Special characters in their names can be surrounded with quotes. Special
characters may be escaped using ``"\xx"`` where ``xx`` is the ASCII characters may be escaped using ``"\xx"`` where ``xx`` is the ASCII
code for the character in hexadecimal. In this way, any character can code for the character in hexadecimal. In this way, any character can