From 84a8bf22e865fe5b3fe7292423ef13af8f786d26 Mon Sep 17 00:00:00 2001
From: drmortalwombat <90205530+drmortalwombat@users.noreply.github.com>
Date: Sun, 29 Sep 2024 17:24:42 +0200
Subject: [PATCH] Constant folding of pointer type cast

---
 oscar64/Declaration.cpp | 7 +++++++
 oscar64/Parser.cpp      | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/oscar64/Declaration.cpp b/oscar64/Declaration.cpp
index 866d429..cbae647 100644
--- a/oscar64/Declaration.cpp
+++ b/oscar64/Declaration.cpp
@@ -732,6 +732,13 @@ Expression* Expression::ConstantFold(Errors * errors, LinkerSection * dataSectio
 				ex->mDecType = mDecType;
 				return ex;
 			}
+			else if (mLeft->mDecValue->mType == DT_CONST_POINTER)
+			{
+				Expression* ex = new Expression(mLocation, EX_CONSTANT);
+				ex->mDecValue = mLeft->mDecValue;
+				ex->mDecType = mDecType;
+				return ex;
+			}
 		}
 		else if (mDecType->mType == DT_TYPE_INTEGER)
 		{
diff --git a/oscar64/Parser.cpp b/oscar64/Parser.cpp
index 359c325..c201d50 100644
--- a/oscar64/Parser.cpp
+++ b/oscar64/Parser.cpp
@@ -1510,6 +1510,8 @@ Declaration * Parser::CopyConstantInitializer(int offset, Declaration* dtype, Ex
 
 	exp = CoerceExpression(exp, dtype);
 
+	exp = exp->ConstantFold(mErrors, mDataSection);
+
 	Declaration* dec = exp->mDecValue;
 
 	if (exp->mType == EX_CONSTANT)