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(parent: 45f775f) | patch
Darwin, PPC : Fix R13 for PPC64.
authorIain Sandoe <iain@sandoe.co.uk>
Fri, 11 Dec 2020 00:29:42 +0000 (00:29 +0000)
committerIain Sandoe <iain@sandoe.co.uk>
Tue, 28 Sep 2021 19:16:05 +0000 (20:16 +0100)
commitb12d6e79899fd27833c53ffc3c973538244f62e1
treed4db52cf60ca41b0b56e5611c868809be3702a44tree | snapshot
parent45f775f5f813224daed1f2234deacc1c9365009ecommit | diff
Darwin, PPC : Fix R13 for PPC64.

We have a somewhat unusual situation in that for PPC64, R13 is
both reserved and callee-saved (it is used internally by the
pthreads implementation to contain pthread_self).

So add R13 to the fixed regs, but also keep it in the callee-
saved set.

gcc/ChangeLog:

* config/rs6000/darwin.h (FIXED_R13): Add for PPC64.
(FIRST_SAVED_GP_REGNO): Save from R13 even when it is one
of the fixed regs.
gcc/config/rs6000/darwin.h diff | blob | history
Domain: System / Toolchain;