http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51110
Bug #: 51110 Summary: Intel pentium G9650 (core i5) identified as core i7 Classification: Unclassified Product: gcc Version: 4.6.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassig...@gcc.gnu.org ReportedBy: a...@vanhout-narvaez.com Pentium G9650 is identiefied as corei7 by march=native For G9650 being corei5 see: http://download.intel.com/design/processor/datashts/322910.pdf For identification used the following lines: uname -a ouput: Linux MYSERVERNAME 3.0.8 #1 SMP Wed Nov 9 12:13:59 CET 2011 x86_64 Intel(R) Pentium(R) CPU G6950 @ 2.80GHz GenuineIntel GNU/Linux _AND_ echo 'int main(){return 0;}' > test.c && gcc -v -Q -march=native -O2 test.c -o test && rm test.c test output: ..... GNU C (GCC) version 4.6.2 (x86_64-slackware-linux) compiled by GNU C version 4.6.2, GMP version 5.0.1, MPFR version 3.0.1, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 options passed: -v test.c -march=corei7 -mcx16 -msahf -mno-movbe -mno-aes ...... Regards, Alex