use middle::def;
use middle::lang_items::{PanicFnLangItem, PanicBoundsCheckFnLangItem};
use trans::base::*;
+use trans::basic_block::BasicBlock;
use trans::build::*;
use trans::callee;
use trans::cleanup::CleanupMethods;
fcx.pop_loop_cleanup_scope(loop_expr.id);
+ // If there are no predecessors for the next block, we just translated an endless loop and the
+ // next block is unreachable
+ if BasicBlock(next_bcx_in.llbb).pred_iter().next().is_none() {
+ Unreachable(next_bcx_in);
+ }
+
return next_bcx_in;
}
--- /dev/null
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(rustc_attrs)]
+#![allow(warnings)]
+
+// This used to ICE because the "if" being unreachable was not handled correctly
+fn err() {
+ if loop {} {}
+}
+
+#[rustc_error]
+fn main() {} //~ ERROR compilation successful