From: Ian Romanick <ian.d.romanick@intel.com>
Date: Thu, 10 Jun 2010 00:31:02 +0000 (-0700)
Subject: Do simple constant folding while processing function call parameters
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1a872b1af37927d689ec7af0921af7f3a9dcb1fd;p=mesa.git

Do simple constant folding while processing function call parameters
---

diff --git a/ast_function.cpp b/ast_function.cpp
index f0c1f0409a0..b0700bed5f9 100644
--- a/ast_function.cpp
+++ b/ast_function.cpp
@@ -36,7 +36,11 @@ process_parameters(exec_list *instructions, exec_list *actual_parameters,
 
    foreach_list (n, parameters) {
       ast_node *const ast = exec_node_data(ast_node, n, link);
-      ir_rvalue *const result = ast->hir(instructions, state);
+      ir_rvalue *result = ast->hir(instructions, state);
+
+      ir_constant *const constant = result->constant_expression_value();
+      if (constant != NULL)
+	 result = constant;
 
       actual_parameters->push_tail(result);
       count++;