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gcc for i386-solaris doesn't expand builtin functions for atomic memory access
- From: Lijuan Hai <hailijuan at gmail dot com>
- To: gcc mailing list <gcc at gcc dot gnu dot org>
- Date: Wed, 17 Jun 2009 10:45:05 +0800
- Subject: gcc for i386-solaris doesn't expand builtin functions for atomic memory access
Hi all,
As we see from gcc doc, the builtins are intended to be compatible
with those described in the Intel Itanium Processor-specific
Application Binary Interface, section 7.4. Why did gcc for x86 miss
expanding such built-ins, just generating a call to an external
function? Is it on purpose or TODO work?
# gcc -v
Using built-in specs.
Target: i386-pc-solaris2.11
Configured with: /import/iropt5/lijuan/plain-gcc/gcc-git/configure
--prefix=/import/dr3/i386/gcc-4.4.0 --enable-shared --disable-static
--disable-libtool-lock --disable-libada --enable-libssp
--enable-languages=c,c++,objc,fortran --enable-threads=posix
--enable-tls=yes --with-system-zlib --without-gnu-ld
--with-ld=/usr/ccs/bin/ld --with-as=/usr/sfw/bin/gas --enable-c99
--enable-nls --enable-wchar_t --enable-libstdcxx-allocator=mt
--with-pic --disable-bootstrap
Thread model: posix
gcc version 4.4.0 20090421 (prerelease) (GCC)
Thanks,
-- Lijuan