From bb9c2032224a9abd034f8fcb17699048ac351e00 Mon Sep 17 00:00:00 2001
From: acqn <acqn163@outlook.com>
Date: Sat, 15 Aug 2020 07:53:28 +0800
Subject: [PATCH] Fixed integer promotion of unary operations.

---
 src/cc65/expr.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/cc65/expr.c b/src/cc65/expr.c
index 12a0c0b57..9f7902284 100644
--- a/src/cc65/expr.c
+++ b/src/cc65/expr.c
@@ -1856,8 +1856,8 @@ static void UnaryOp (ExprDesc* Expr)
         /* Value is not constant */
         LoadExpr (CF_NONE, Expr);
 
-        /* Get the type of the expression */
-        Flags = TypeOf (Expr->Type);
+        /* Adjust the type of the value */
+        Flags = g_typeadjust (TypeOf (Expr->Type), TypeOf (type_int) | CF_CONST);
 
         /* Handle the operation */
         switch (Tok) {
@@ -1870,6 +1870,9 @@ static void UnaryOp (ExprDesc* Expr)
         /* The result is an rvalue in the primary */
         ED_FinalizeRValLoad (Expr);
     }
+
+    /* Adjust the type of the expression */
+    Expr->Type = IntPromotion (Expr->Type);
 }