diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index 6e8a1fd..5bb3d00 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -686,6 +686,9 @@ ast_expression::hir(exec_list *instructions,
 
    switch (this->oper) {
    case ast_assign: {
+      this->print();
+      printf("\n");
+
       op[0] = this->subexpressions[0]->hir(instructions, state);
       op[1] = this->subexpressions[1]->hir(instructions, state);