From: Vadim Girlin <vadimgirlin@gmail.com>
Date: Wed, 17 Jul 2013 08:05:32 +0000 (+0400)
Subject: r600g/sb: fix initial register allocation
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=44ebe7291ccd100f9e2ad8d5b7f86e9844ad6f3c;p=mesa.git

r600g/sb: fix initial register allocation

Mark values that are members of the 'same register' constraint as
preallocated in ra_init pass, this will prevent incorrect
reallocation in scheduler in some cases.

Should fix https://bugs.freedesktop.org/show_bug.cgi?id=66713

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
---

diff --git a/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp b/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
index 582f553db0e..7f388af6e81 100644
--- a/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
+++ b/src/gallium/drivers/r600/sb/sb_ra_coalesce.cpp
@@ -593,6 +593,7 @@ int coalescer::color_reg_constraint(ra_constraint *c) {
 
 		color_chunk(cc, color);
 		cc->fix();
+		cc->set_prealloc();
 	}
 
 	return 0;