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On Sep 6, 2008, at 10:42, "niklaus at gmail dot com" <[EMAIL PROTECTED]
> wrote:
------- Comment #4 from niklaus at gmail dot com 2008-09-06 17:42
-------
On the below version of gcc on cygwin (winXP SP3) i don't have any
problems
with optimization on or off. They produce consistent correct result.
Why is it
a problem with linux ? or am i doing something wrong.
Because on x86 gnu/Linux, the precision is set to 80bits rather than
64bit like it is on windows.
I tried gcc -mfpmath=387 a.c -O2 and without -O2 , still the same
correct
results on both.
Even with -ffloat-store . Is it glibc ?
$ gcc -v
Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs
Configured with: /usr/build/package/orig/test.respin/gcc-3.4.4-3/
configure
--verbose --prefix=/usr -
-exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/
usr/lib
--mandir=/usr/share/man
--infodir=/usr/share/info --enable-languages=c,ada,c+
+,d,f77,pascal,java,objc
--enable-nls --without
-included-gettext --enable-version-specific-runtime-libs --without-x
--enable-libgcj --disable-java-
awt --with-system-zlib --enable-interpreter --disable-libgcj-debug
--enable-threads=posix --enable-j
ava-gc=boehm --disable-win32-registry --enable-sjlj-exceptions
--enable-hash-synchronization --enabl
e-libstdcxx-debug
Thread model: posix
gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
$
--
niklaus at gmail dot com changed:
What |Removed |Added
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CC| |niklaus at gmail dot
com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37390
