(Adding an i386 maintainer in Cc)
http://gcc.gnu.org/ml/gcc-patches/2014-04/msg00620.html

On Sun, 13 Apr 2014, Marc Glisse wrote:

Hello,

some people like having a macro to test if a type is available (__SIZEOF_INT128__ for instance). This adds macros for __float80 and __float128. The types seem to be always available, so I didn't add any condition.

If you think this is a bad idea, please close the PR.

Bootstrap+testsuite on x86_64-linux-gnu.

2014-04-13  Marc Glisse  <marc.gli...@inria.fr>

        PR preprocessor/56540
        * config/i386/i386-c.c (ix86_target_macros): Define
        __SIZEOF_FLOAT80__ and __SIZEOF_FLOAT128__.

--
Marc Glisse

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