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authorKenneth Graunke <[email protected]>2014-06-09 02:59:21 -0700
committerKenneth Graunke <[email protected]>2014-06-10 16:38:27 -0700
commitecc78eab119ac8fa3df380a80bc94975e986523c (patch)
tree08268fabd28102b4ff288c1a5bd80c0f7be138d2 /src/mesa
parentfc19c4aaf17a43c88d789ca9b7f7b2fe0c6f27a1 (diff)
i965: Don't use the head sentinel as an fs_inst in Gen4 workaround code.
When walking backwards, we want to stop at the head sentinel, which is where scan_inst->prev->prev == NULL, not scan_inst->prev == NULL. Fixes random crashes, as well as valgrind errors. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Matt Turner <[email protected]> Cc: [email protected]
Diffstat (limited to 'src/mesa')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index a8ca9bc9ec0..b485e65adcf 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2355,7 +2355,7 @@ fs_visitor::insert_gen4_pre_send_dependency_workarounds(fs_inst *inst)
* program.
*/
for (fs_inst *scan_inst = (fs_inst *)inst->prev;
- scan_inst != NULL;
+ !scan_inst->is_head_sentinel();
scan_inst = (fs_inst *)scan_inst->prev) {
/* If we hit control flow, assume that there *are* outstanding