[Libre-soc-bugs] [Bug 238] POWER Compressed Formal Standard writeup

[bugzilla-daemon at libre-soc.org]

https://bugs.libre-soc.org/show_bug.cgi?id=238

Luke Kenneth Casson Leighton <lkcl at lkcl.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|CONFIRMED                   |IN_PROGRESS

--- Comment #37 from Luke Kenneth Casson Leighton <lkcl at lkcl.net> ---
just checking even the basic default examole square() with godbolt.org shows
that everything is covered, with the exceotion that reg 31 appears to be used
by convention as a Stack Pointer (SP).

to cover that possibility it would be good to remap Compressed RA=0b111 to
RA=0b11111 at least for LD/ST, and also to make sure that the commonly used
regs from ppc64 ABI are smack in the reduced range.

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