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-rw-r--r--src/gallium/drivers/softpipe/sp_tile_cache.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/gallium/drivers/softpipe/sp_tile_cache.c b/src/gallium/drivers/softpipe/sp_tile_cache.c
index 5f7864e6714..b2195ec6b59 100644
--- a/src/gallium/drivers/softpipe/sp_tile_cache.c
+++ b/src/gallium/drivers/softpipe/sp_tile_cache.c
@@ -131,7 +131,12 @@ sp_create_tile_cache( struct pipe_screen *screen )
tc->entries[pos].y = -1;
}
-#if TILE_CLEAR_OPTIMIZATION
+ /* XXX this code prevents valgrind warnings about use of uninitialized
+ * memory in programs that don't clear the surface before rendering.
+ * However, it breaks clearing in other situations (such as in
+ * progs/tests/drawbuffers, see bug 24402).
+ */
+#if 0 && TILE_CLEAR_OPTIMIZATION
/* set flags to indicate all the tiles are cleared */
memset(tc->clear_flags, 255, sizeof(tc->clear_flags));
#endif