Add UnwindAction::Terminate

compiler/rustc_mir_build/src/build/expr/into.rs

@@ -469,7 +469,11 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
                         } else {
                             Some(destination_block)
                         },
-                        unwind: UnwindAction::Continue,
+                        unwind: if options.contains(InlineAsmOptions::MAY_UNWIND) {
+                            UnwindAction::Continue
+                        } else {
+                            UnwindAction::Unreachable
+                        },
                     },
                 );
                 if options.contains(InlineAsmOptions::MAY_UNWIND) {

compiler/rustc_mir_build/src/build/scope.rs

@@ -369,7 +369,7 @@ impl DropTree {
                     let terminator = TerminatorKind::Drop {
                         target: blocks[drop_data.1].unwrap(),
                         // The caller will handle this if needed.
-                        unwind: UnwindAction::Continue,
+                        unwind: UnwindAction::Terminate,
                         place: drop_data.0.local.into(),
                     };
                     cfg.terminate(block, drop_data.0.source_info, terminator);