[Mesa-dev] [PATCH 51/95] i965/vec4: add a sanity check for force_vstride0

[Iago Toral Quiroga]

We only set this to true when fixing up 64bit regions and for one
specific purpose only, so check that nothing else sets this to true.
This helped me find a bug where the field was incorrectly initialized
to true in some cases.
---
 src/mesa/drivers/dri/i965/brw_vec4.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_vec4.cpp b/src/mesa/drivers/dri/i965/brw_vec4.cpp
index fd0cafd..2bb6a8a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4.cpp
@@ -2183,6 +2183,9 @@ vec4_visitor::expand_64bit_swizzle_to_32bit()
          continue;
 
       for (int arg = 0; arg < 3; arg++) {
+         /* Sanity check: we only set force_vstride0 here */
+         assert(!inst->src[arg].force_vstride0);
+
          if (inst->src[arg].file == BAD_FILE)
             continue;
 
-- 
2.7.4