restrict test to x86-64

the8472 · the8472 · commit f93e1258287e · 2023-09-02T13:42:58.000+02:00
diff --git a/tests/codegen/lib-optimizations/iter-sum.rs b/tests/codegen/lib-optimizations/iter-sum.rs
@@ -1,5 +1,6 @@
 // ignore-debug: the debug assertions get in the way
 // compile-flags: -O
+// only-x86_64 (vectorization varies between architectures)
 #![crate_type = "lib"]
 
 
