From: Stephen T. <st...@sb...> - 2002-10-29 15:21:36
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On Tue, 2002-10-29 at 04:38, Norman Urs Baier wrote: > -mcpu sets timing for a given architecture > -march uses an instruction set that is optimized for the given architectu= re=20 > and implies -mcpu. It produces binary code which is in general not compat= ible=20 > with other architectures. >=20 > http://gcc.gnu.org/onlinedocs/gcc-3.2/gcc/i386-and-x86-64-Options.html#i3= 86%20and%20x86-64%20Options Since we set specific flags for various architectures in the configure.ac file can we not be specific and use the -march flag?=20 For example we check for i386, i486, etc. when setting the -mcpu flag. We also do checks in there for the various architecture when setting the -O flag. Stephen |