projects
/
mesa.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
r600g: compute support for evergreen
[mesa.git]
/
src
/
glsl
/
opt_if_simplification.cpp
diff --git
a/src/glsl/opt_if_simplification.cpp
b/src/glsl/opt_if_simplification.cpp
index 940dd08d5768353480821265d6bc906ca9fc5e84..7e88208f7c141b19dffbc0c23faa7fcecf335c88 100644
(file)
--- a/
src/glsl/opt_if_simplification.cpp
+++ b/
src/glsl/opt_if_simplification.cpp
@@
-66,6
+66,14
@@
do_if_simplification(exec_list *instructions)
ir_visitor_status
ir_if_simplification_visitor::visit_leave(ir_if *ir)
{
ir_visitor_status
ir_if_simplification_visitor::visit_leave(ir_if *ir)
{
+ /* If the if statement has nothing on either side, remove it. */
+ if (ir->then_instructions.is_empty() &&
+ ir->else_instructions.is_empty()) {
+ ir->remove();
+ this->made_progress = true;
+ return visit_continue;
+ }
+
/* FINISHME: Ideally there would be a way to note that the condition results
* FINISHME: in a constant before processing both of the other subtrees.
* FINISHME: This can probably be done with some flags, but it would take
/* FINISHME: Ideally there would be a way to note that the condition results
* FINISHME: in a constant before processing both of the other subtrees.
* FINISHME: This can probably be done with some flags, but it would take