Hi, I am trying to cross compile a program on an i7 CPU for a target "Intel(R) Celeron(R) M processor 1.50GHz". Here is `cat /proc/cpuinfo` for the target:
https://susepaste.org/bd4b76fd In my attempt to find the proper architecture name I ran: gcc -march=native -Q --help=target | grep -- '-march=' | cut -f3 which gave me "pentium-m". Normally for gcc I would use: CFLAGS="-O3 -pipe -march=pentium-m -mtune=pentium-m" However as per the subject of this message it seems Clang doesn't recognize this target and throws a series of similar errors: error: unknown target CPU 'pentium-m' note: valid target CPU values are: nocona, core2, penryn, bonnell, atom, silvermont, goldmont-plus, tremont, nehalem, corei7, westmere, sandybridge, corei7-avx, iavx-i, haswell, core-avx2, broadwell, skylake, skylake-avx512, skx, cannonlake, iicelake-server, knl, knm, k8, athlon64, athlon-fx, opteron, k8-sse3, athlon64-sse, amdfam10, barcelona, btver1, btver2, bdver1, bdver2, bdver3, bdver4, znver1, x8 Still from that it is not clear which valid one I should use. I could not find the answer by searching the web either. What target should I use and how can I optimize the build for it? P. S. I am not a developer. Using llvm and clang build by myself from source code: clang version 8.0.0 (trunk 342820) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: <hidden> Found candidate GCC installation: /usr/lib64/gcc/x86_64-suse-linux/7 Selected GCC installation: /usr/lib64/gcc/x86_64-suse-linux/7 Candidate multilib: .;@m64 Selected multilib: .;@m64 -- George _______________________________________________ cfe-users mailing list cfe-users@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-users
