https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61570
Mikael Pettersson <mikpelinux at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mikpelinux at gmail dot com --- Comment #3 from Mikael Pettersson <mikpelinux at gmail dot com> --- (In reply to Jakub Jelinek from comment #2) > Sure, but for this model AFAIK we go through the default: case of PENTIUMPRO > anyway, where we only test the flags, so even if it used some completely > unknown family number, it would still behave the same. > So, can't we before: > else if (has_sse3) > /* It is Core Duo. */ > cpu = "pentium-m"; > else if (has_sse2) > /* It is Pentium M. */ > cpu = "pentium-m"; > just add > else if (has_longmode) > /* Some unknown 64-bit CPU, perhaps emulator? */ > cpu = "x86-64"; > ? That looks reasonable. > Otherwise, QEMU, if it doesn't want to support SSSE3 and SSE3, and doesn't > want to support 3dNOW either would need to identify itself as something > other than Intel and AMD. I don't recall if the 1st gen 64-bit Netburst had SSE3/SSSE3 or not, but if it didn't then emulating that should be close enough to generic x86_64. Otherwise I'd prefer qemu to choose a unique vendor, unique family, or some high unused model (e.g. all-bits-one).