Re: Why use pentium4 for Pentium M?

2007-02-26 Thread H. J. Lu
On Tue, Feb 27, 2007 at 12:30:16PM +0800, Zuxy Meng wrote: > Hi, > > -march=native choose pentium4 instead of pentium-m for Pentium M processors > (see config/i386/driver-i386.c)? Is this intentional or a typo? > It is because Pentium M implements Pentium instructions. You should get: bash-3.0

Re: Why use pentium4 for Pentium M?

2007-02-26 Thread Paolo Bonzini
Zuxy Meng wrote: Hi, -march=native choose pentium4 instead of pentium-m for Pentium M processors (see config/i386/driver-i386.c)? Is this intentional or a typo? I think the reason is that Intel changed completely the microarchitecture (going back to something that actually is more similar t

Why use pentium4 for Pentium M?

2007-02-26 Thread Zuxy Meng
Hi, -march=native choose pentium4 instead of pentium-m for Pentium M processors (see config/i386/driver-i386.c)? Is this intentional or a typo? -- Zuxy