FYI the error is directly related to the inclusion of the _mm_xor_ps()
intrinsic, replacing this with, say _mm_sub_ps() and it compiles without a
problem.
Here is the output of -v compile
$ gcc -v -msse2 -O3 -c test.c
Reading specs from /usr/lib/gcc/i686-pc-cygwin/3.4.4/specs
Configured with: /managed/gcc-build/final-v3-bootstrap/gcc-3.4.4-999/configure -
-verbose --program-suffix=-3 --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc
--libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man --infodir=/usr/s
hare/info --enable-languages=c,ada,c++,d,f77,pascal,java,objc --enable-nls --wit
hout-included-gettext --enable-version-specific-runtime-libs --without-x --enabl
e-libgcj --disable-java-awt --with-system-zlib --enable-interpreter --disable-li
bgcj-debug --enable-threads=posix --enable-java-gc=boehm --disable-win32-registr
y --enable-sjlj-exceptions --enable-hash-synchronization --enable-libstdcxx-debu
g
Thread model: posix
gcc version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
/usr/lib/gcc/i686-pc-cygwin/3.4.4/cc1.exe -quiet -v -D__CYGWIN32__ -D__CYGWIN__
-Dunix -D__unix__ -D__unix -idirafter /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../.
./../include/w32api -idirafter /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i68
6-pc-cygwin/lib/../../include/w32api test.c -quiet -dumpbase test.c -msse2 -mtun
e=pentiumpro -auxbase test -O3 -version -o /tmp/ccK2doSW.s
ignoring nonexistent directory "/usr/local/include"
ignoring nonexistent directory "/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i6
86-pc-cygwin/include"
ignoring duplicate directory "/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686
-pc-cygwin/lib/../../include/w32api"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/i686-pc-cygwin/3.4.4/include
/usr/include
/usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../include/w32api
End of search list.
GNU C version 3.4.4 (cygming special, gdc 0.12, using dmd 0.125) (i686-pc-cygwin
)
compiled by GNU C version 3.4.4 (cygming special, gdc 0.12, using dmd 0.
125).
GGC heuristics: --param ggc-min-expand=99 --param ggc-min-heapsize=130992
test.c: In function `vclrx':
test.c:39: internal compiler error: in output_constant_pool, at varasm.c:3190
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://cygwin.com/problems.html> for instructions.
Seems like a really old version!
Phil
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