r279488 - in /branches/ibm/pcrel-trunk/gcc: Cha...

[meissner@gcc.gnu.org]

Author: meissner
Date: Wed Dec 18 03:00:52 2019
New Revision: 279488

URL: https://gcc.gnu.org/viewcvs?rev=279488&root=gcc&view=rev
Log:
Optimize folding vector extract constant offset into PC-relative address.

2019-12-12  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000.c (rs6000_reg_to_addr_mask): New helper
	function.
	(rs6000_adjust_vec_address): Add support for folding a constant
	offset of a vector extract of a vector accessed with PC-relative
	addressing into the offset of the load.


Modified:
    branches/ibm/pcrel-trunk/gcc/ChangeLog.meissner
    branches/ibm/pcrel-trunk/gcc/config/rs6000/rs6000.c