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by michel-slm 1251 days ago
> That is: on 64-bit x86, you have with frame pointers twice as many available registers as 32-bit x86 has without frame pointers

Indeed.

> I don't think getting rid of frame pointer omission would be viable if Fedora still supported 32-bit x86

Fedora still supports it (e.g. packages are still built for i686, and you can install them on x86_64) though it has dropped 32-bit ARM. But the change to reenable frame pointers will not be applied to 32-bit x86 builds.