From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 25 Feb 2021 10:24:41 +0000 (+0200)
Subject: Don't add null entries to variable values
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=6436e275985261c85c59b1b962cbf8c466e9eaba

Don't add null entries to variable values

This triggered a bug now that function parameters are processed within
the function's scope.
---

diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp
index 1f5b5d31..fcb1075e 100644
--- a/source/glsl/optimize.cpp
+++ b/source/glsl/optimize.cpp
@@ -160,7 +160,7 @@ void ConstantConditionEliminator::visit(Assignment &assign)
 
 void ConstantConditionEliminator::visit(VariableDeclaration &var)
 {
-	if(var.constant || current_block->parent)
+	if((var.constant || current_block->parent) && var.init_expression)
 		variable_values[&var] = var.init_expression.get();
 }