[Bug target/88343] [7/8/9 Regression] R31 is unconditionally saved/restored on powerpc-darwin even when it's not necessary.

[iains at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88343

--- Comment #2 from Iain Sandoe <iains at gcc dot gnu.org> ---
(In reply to Iain Sandoe from comment #1)
> moving this from 71469 and noting it's a regression.

71496, even: this was the commit.

https://gcc.gnu.org/viewcvs?rev=243532&root=gcc&view=rev