extend.texi: Document Function Multiversioning and "default" parameter string to target...
* doc/extend.texi: Document Function Multiversioning and "default"
parameter string to target attribute.
* g++.dg/ext/mv12.C: New test.
* g++.dg/ext/mv12.h: New file.
* g++.dg/ext/mv12-aux.C: New file.
* g++.dg/ext/mv13.C: New test.
* config/i386/i386.c (get_builtin_code_for_version): Return 0 if
target attribute parameter is "default".
(ix86_compare_version_priority): Remove checks for target attribute.
(ix86_mangle_function_version_assembler_name): Change error to sorry.
Remove check for target attribute equal to NULL. Add assert.
(ix86_generate_version_dispatcher_body): Change error to sorry.
From-SVN: r195967