gcc/testsuite/rust/compile/issue-4517.rs - gcc.git - Git at Google

 #![feature(no_core)]
 #![no_core]

 const _: () = if true {};
 const x: () = if true {}; // { dg-warning "unused name" "" { target *-*-* } }
	#![feature(no_core)]
	#![no_core]

	const _: () = if true {};
	const x: () = if true {}; // { dg-warning "unused name" "" { target --* } }