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__sync_val_compare_and_swap_16

From: Robert Lemmen <robertle at semistable dot com>
To: gcc-help at gcc dot gnu dot org
Date: Fri, 27 Jun 2008 13:57:12 +0100
Subject: __sync_val_compare_and_swap_16
Dont-send-mail-trap: honey@semistable.com

hi folks,

i want to use the builtin __sync_val_compare_and_swap on 128 bit
datatypes. older versions of ggc always gave me a "incompatible type for
argument 1 of '__sync_val_compare_and_swap'", which took as "not
supported". now i am using a current version of the compiler, and it
does give me a "undefined reference to `__sync_val_compare_and_swap_16",
which i dont understand. obviously the compiler does now know about t,
but does not fully support it. it does of course work with 64 bit
arguments. i sthere anything i need to do? some switch? or link
something in? or does this just mean support for it is not yet fully
there?

thanks  robert

-- 
Robert Lemmen                               http://www.semistable.com

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