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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_cse.cpp3
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_cse.cpp3
2 files changed, 4 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
index f87601ce0ec..11cb327614c 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_cse.cpp
@@ -194,7 +194,8 @@ fs_visitor::opt_cse_local(bblock_t *block)
foreach_in_list_use_after(aeb_entry, entry, &aeb) {
/* Match current instruction's expression against those in AEB. */
- if (instructions_match(inst, entry->generator)) {
+ if (!(entry->generator->dst.is_null() && !inst->dst.is_null()) &&
+ instructions_match(inst, entry->generator)) {
found = true;
progress = true;
break;
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp b/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp
index 30a4098b339..ee50419dc9a 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_cse.cpp
@@ -157,7 +157,8 @@ vec4_visitor::opt_cse_local(bblock_t *block)
foreach_in_list_use_after(aeb_entry, entry, &aeb) {
/* Match current instruction's expression against those in AEB. */
- if (instructions_match(inst, entry->generator)) {
+ if (!(entry->generator->dst.is_null() && !inst->dst.is_null()) &&
+ instructions_match(inst, entry->generator)) {
found = true;
progress = true;
break;