From acc45438e98b0308c914056dda7bcb01cee81c44 Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Thu, 15 Feb 2018 22:01:33 +0000
Subject: 	PR c++/84045 - ICE with typedef and noexcept. 	* except.c
 (build_noexcept_spec): Use strip_typedefs_expr.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@257713 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/cp/except.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'gcc/cp/except.c')

diff --git a/gcc/cp/except.c b/gcc/cp/except.c
index 669bf9f6eaf..0b46698b974 100644
--- a/gcc/cp/except.c
+++ b/gcc/cp/except.c
@@ -1217,6 +1217,10 @@ build_noexcept_spec (tree expr, int complain)
     {
       gcc_assert (processing_template_decl
 		  || TREE_CODE (expr) == DEFERRED_NOEXCEPT);
+      if (TREE_CODE (expr) != DEFERRED_NOEXCEPT)
+	/* Avoid problems with a function type built with a dependent typedef
+	   being reused in another scope (c++/84045).  */
+	expr = strip_typedefs_expr (expr);
       return build_tree_list (expr, NULL_TREE);
     }
 }
-- 
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