upgrade llvm@22

examples/0101-types-types.sx

@@ -13,18 +13,24 @@ Foo :: struct {
 }
 
 main :: () {
-    a : Foo; // default value of 0
+    a : Foo; // a=0, b=42, d=17 from defaults; c is `---` (undefined)
+    // `c` was declared `---`, so its contents are undefined here. Pin it
+    // before printing so the snapshot is deterministic — printing the raw
+    // undefined byte yields whatever garbage the stack/codegen leaves.
+    a.c = 0;
     print("a 0 : {}\n", a);
-    a.a = 1; 
-    // a.c is still undefined at this point
+    a.a = 1;
     a.c = 8;
     print("a 1 : {}\n", a);
 
     large: f64 = 5989.5;
-    b : Foo = ---; // undefined
+    b : Foo = ---; // EVERY field undefined — `= ---` skips all defaults
+    // Assign each field explicitly; nothing here may be read before it is
+    // written, since `= ---` left the whole struct undefined.
     b.a = 1;
-    b.c = xx large; // converts f64 to u8
-    // expect stdout : "b: Foo{a:1, b: 42, c: 7, d: 12}"
+    b.b = SPECIAL_VALUE;      // re-supply the default `= ---` skipped
+    b.c = xx large;           // converts f64 to u8 (5989.5 -> 101)
+    b.d = xx resolve(5);      // converts i32 to u8 (17)
     print("b: {}", b);
     print("\n");