diff options
Diffstat (limited to 'mesalib/src/glsl/opt_if_simplification.cpp')
| -rw-r--r-- | mesalib/src/glsl/opt_if_simplification.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mesalib/src/glsl/opt_if_simplification.cpp b/mesalib/src/glsl/opt_if_simplification.cpp index 940dd08d5..7e88208f7 100644 --- a/mesalib/src/glsl/opt_if_simplification.cpp +++ b/mesalib/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) { + /* 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 |