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[Bug target/36079] [4.3/4.4 Regression] cld instruction is not emitted anymore.
- From: "rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Jun 2008 10:56:26 -0000
- Subject: [Bug target/36079] [4.3/4.4 Regression] cld instruction is not emitted anymore.
- References: <bug-36079-1649@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #16 from rguenther at suse dot de 2008-06-10 10:56 -------
Subject: Re: [4.3/4.4 Regression] cld instruction is not
emitted anymore.
On Tue, 10 Jun 2008, cnstar9988 at gmail dot com wrote:
> ------- Comment #15 from cnstar9988 at gmail dot com 2008-06-10 10:07 -------
> I build gcc 4.3.1 with --with-cld
> ./src/configure --prefix=/opt/gcc-4.3.1 --with-gmp=/opt/gcc-4.3.1/gmp
> --with-mpfr=/opt/gcc-4.3.1/mpfr --enable-languages=c,c++ --disable-nls
> --enable-bootstrap --disable-shared --enable-threads=posix
> --enable-checking=release --enable-cld --with-system-zlib --enable-__cxa_atexit
> --with-cpu=generic
>
> I test it with /opt/gcc-4.3.1/bin/gcc -v test.c
> but I can't see any -mcld?
>
> /opt/gcc-4.3.1/libexec/gcc/i686-pc-linux-gnu/4.3.1/cc1 -quiet -v test.c -quiet
> -dumpbase test.c -mtune=generic -auxbase test -version -o /tmp/ccVgUf0W.s
It only turns the option on in the backend, it doesn't pass it from
the driver.
Richard.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36079