fixed compiler crash: unsigned = (-(unsigned as word) as uword)

2025-07-24 20:24:09 +00:00 · 2022-11-27 16:50:44 +01:00
parent db55562f6a
commit ec64a68a71
5 changed files with 46 additions and 6 deletions
--- a/compiler/test/codegeneration/TestVariables.kt
+++ b/compiler/test/codegeneration/TestVariables.kt
@@ -63,5 +63,21 @@ class TestVariables: FunSpec({
        """
        compileText(C64Target(), false, text, writeAssembly = true) shouldNotBe null
    }
+    
+    test("negation of unsigned via casts") {
+        val text = """
+            main {
+                sub start() {
+                    cx16.r0L = -(cx16.r0L as byte) as ubyte
+                    cx16.r0 = -(cx16.r0 as word) as uword
+                    ubyte ub
+                    uword uw
+                    ub = -(ub as byte) as ubyte
+                    uw = -(uw as word) as uword
+                }
+            }
+        """
+        compileText(C64Target(), false, text, writeAssembly = true) shouldNotBe null
+    }

 })