[Bug target/71241] [x86] Missing built-in functions for float128 NaNs

[uros at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71241

--- Comment #2 from uros at gcc dot gnu.org ---
Author: uros
Date: Sun Jun 12 17:22:16 2016
New Revision: 237338

URL: https://gcc.gnu.org/viewcvs?rev=237338&root=gcc&view=rev
Log:
        PR target/71241
        * config/i386/i386.i386-builtin-types.def (CONST_STRING):
        New primitive type.
        (FLOAT128_FTYPE_CONST_STRING): New function type.
        * config/i386/i386.c (enum ix86_builtins) [IX86_BUILTIN_NANQ]: New.
        [IX86_BUILTIN_NANSQ]: Ditto.
        (ix86_fold_builtin): Handle IX86_BUILTIN_NANQ and IX86_BUILTIN_NANSQ.
        (ix86_init_builtin_types) Declare const_string_type_node.
        Add __builtin_nanq and __builtin_nansq builtin functions.
        (ix86_expand_builtin): Handle IX86_BUILTIN_NANQ and IX86_BUILTIN_NANSQ.
        * doc/extend.texi (x86 Built-in Functions): Document
        __builtin_nanq and __builtin_nansq.

testsuite/ChangeLog:

        PR target/71241
        * testsuite/gcc.dg/torture/float128-nan.c: New test.


Added:
    trunk/gcc/testsuite/gcc.dg/torture/float128-nan.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386-builtin-types.def
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog