[yocto] x86-64 with -mx32 option?

[Paul D. DeRocco]

Has anyone successfully used Yocto to build a Linux system for a 64-bit
Intel processor using the -mx32 compiler option, forcing all long and
pointer types to 32 bits? I've got an embedded system with a gig of RAM
and I'd like to have access to the larger register set (especially SSE) of
64-bit mode, but suspect that using 32-bit pointers might speed things up
a bit, by saving cache space.

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Ciao,               Paul D. DeRocco
Paul                mailto:pderocco at ix.netcom.com