r267387 - in /branches/gcc-8-branch/gcc: Change...

[iains@gcc.gnu.org]

Author: iains
Date: Sun Dec 23 21:17:46 2018
New Revision: 267387

URL: https://gcc.gnu.org/viewcvs?rev=267387&root=gcc&view=rev
Log:
fix PR target/88343 by backporting r267049

The PR is about unnecessary saves of the pic base
register, it shows on m32 Linux and m32/m64 Darwin.

2018-12-23  Iain Sandoe  <iain@sandoe.co.uk>

	backport from mainline.
	2018-12-12 Segher Boessenkool  <segher@kernel.crashing.org>
		   Iain Sandoe  <iain@sandoe.co.uk>

	PR target/88343
	* config/rs6000/rs6000.c (save_reg_p): Do not save the picbase reg
	unless it has been used.
	(first_reg_to_save): Remove dead code.


Modified:
    branches/gcc-8-branch/gcc/ChangeLog
    branches/gcc-8-branch/gcc/config/rs6000/rs6000.c