On 09/24/2012 09:29 AM, burlen wrote:
On 09/24/2012 07:04 AM, Bill Hoffman wrote:
On 9/23/2012 4:29 PM, Burlen Loring wrote:
hmmm, I was a bit hasty in concluding that the issue has gone away in
newer releases. on another system, I have the issue with cmake 2.8.8.
The intel compiler version there is 11.1. On this system if I don't
include $INTEL_ROOT/include/intel64 explicitly , gcc's xmm intrinsics
are found causing errors (typical error follows). Examining the output
of make VERBOSE=1, I'm not seeing any reference to the path containing
either gcc or intel xmm intrinsics. Is this a cmake issue? or perhaps a
configuration issue with the intel compiler on this system?
/usr/lib64/gcc/x86_64-suse-linux/4.3/include/xmmintrin.h(105): error:
identifier "__builtin_ia32_addss" is undefined
return (__m128) __builtin_ia32_addss ((__v4sf)__A, (__v4sf)__B);
Does the compiler work from the command line with CMake?
Using the compiler without cmake, I do need to include the extra path
to prevent gcc's intrinsics from being found. Looks like this is on
the intel side of things. Of the two systems I've tested recently the
system with intel 11.1 has the issue, while the system with intel 12.1
does not, both with cmake 2.8.8. As far as I can see both gcc and
intel compilers are configured similarly on these systems with both
compilers providing xmm intrinsics header. Apparently in the older
intel compiler gcc's directory was searched first, and thus
erroneously finding the gcc intrinsics. Apparently the newer version
of the intel compiler is searching its directories first. There's hope
that the issue is solved going forward, and probably not worth
worrying about in cmake...
After much confusion on my part I think I've finally got to the bottom
of this. the source code in question was including xmmintin.h directly
which is how it's supposed to be done with gcc but not with icc. More
info:
http://forum.kde.org/viewtopic.php?f=74&t=107947&sid=3c2d991327e2604c967440013e9c14fe
<http://forum.kde.org/viewtopic.php?f=74&t=107947&sid=3c2d991327e2604c967440013e9c14fe>
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