Mesa (master): r300/compiler: Fix regalloc for values with multiple writers
Tom Stellard
tstellar at kemper.freedesktop.org
Mon Sep 19 01:02:28 UTC 2011
Module: Mesa
Branch: master
Commit: 2d1004d9aa719bb93a4f057b0eefe88f23b44e44
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2d1004d9aa719bb93a4f057b0eefe88f23b44e44
Author: Tom Stellard <tstellar at gmail.com>
Date: Sun Sep 18 17:43:41 2011 -0700
r300/compiler: Fix regalloc for values with multiple writers
https://bugs.freedesktop.org/show_bug.cgi?id=40062
https://bugs.freedesktop.org/show_bug.cgi?id=36939
Note: This is a candidate for the 7.11 branch.
---
.../drivers/r300/compiler/radeon_variable.c | 9 ++++++---
1 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/r300/compiler/radeon_variable.c b/src/gallium/drivers/r300/compiler/radeon_variable.c
index 7c640c4..77bb9d4 100644
--- a/src/gallium/drivers/r300/compiler/radeon_variable.c
+++ b/src/gallium/drivers/r300/compiler/radeon_variable.c
@@ -297,9 +297,12 @@ static void get_variable_helper(
{
struct rc_list * list_ptr;
for (list_ptr = *variable_list; list_ptr; list_ptr = list_ptr->Next) {
- if (readers_intersect(variable, list_ptr->Item)) {
- rc_variable_add_friend(list_ptr->Item, variable);
- return;
+ struct rc_variable * var;
+ for (var = list_ptr->Item; var; var = var->Friend) {
+ if (readers_intersect(var, variable)) {
+ rc_variable_add_friend(var, variable);
+ return;
+ }
}
}
rc_list_add(variable_list, rc_list(&variable->C->Pool, variable));
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