r278297 - in /trunk/gcc: ChangeLog config/gcn/g...

[kcy@gcc.gnu.org]

Author: kcy
Date: Fri Nov 15 14:48:15 2019
New Revision: 278297

URL: https://gcc.gnu.org/viewcvs?rev=278297&root=gcc&view=rev
Log:
[amdgcn] Use first lane of v1 for zero offset

Use v1 instead of v0 when a zero-valued VGPR is needed.  This frees up
v0 for other purposes.

2019-11-15  Kwok Cheung Yeung  <kcy@codesourcery.com>

	gcc/
	* config/gcn/gcn.c (gcn_expand_prologue): Remove initialization and
	prologue use of v0.
	(print_operand_address): Use v1 for zero vector offset.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/gcn/gcn.c