From: Matt Turner <mattst88@gmail.com>
Date: Wed, 26 Mar 2014 20:09:21 +0000 (-0700)
Subject: i965/fs: Recalculate live intervals in calculate_register_pressure().
X-Git-Tag: upstream/10.3~2769
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=26012c16737a8542316062ef17fa9a0b34e274b7;p=platform%2Fupstream%2Fmesa.git

i965/fs: Recalculate live intervals in calculate_register_pressure().

Otherwise calling dump_instructions() after declaring a new fs_reg would
segfault when calculate_register_pressure()'s loop over reg walked off
the end of the virtual_grf_start[] array that calculate_live_intervals()
would have reallocated for you, if it had known there was a new
register.
---

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 713e477..c88f7c9 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -3294,6 +3294,7 @@ fs_visitor::assign_binding_table_offsets()
 void
 fs_visitor::calculate_register_pressure()
 {
+   invalidate_live_intervals();
    calculate_live_intervals();
 
    int num_instructions = 0;