From: Jason Merrill <jason@redhat.com>
Date: Fri, 9 Jun 2017 20:13:38 +0000 (-0400)
Subject: PR c++/80384 - ICE with dependent noexcept-specifier
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=55c5c0ad3c32a5c9e5be4a606b9c9925f5416046;p=gcc.git

PR c++/80384 - ICE with dependent noexcept-specifier

	* pt.c (dependent_type_p_r) [FUNCTION_TYPE]: Check for dependent
	noexcept-specifier.

From-SVN: r249078
---

diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index a813de7e4be..944b69596fe 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,9 @@
 2017-06-09  Jason Merrill  <jason@redhat.com>
 
+	PR c++/80384 - ICE with dependent noexcept-specifier
+	* pt.c (dependent_type_p_r) [FUNCTION_TYPE]: Check for dependent
+	noexcept-specifier.
+
 	* constexpr.c (potential_constant_expression_1): Allow 'this' capture.
 
 2017-06-09  Jan Hubicka  <hubicka@ucw.cz>
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index ada94bd65ed..99f5b123a84 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -23438,6 +23438,14 @@ dependent_type_p_r (tree type)
 	   arg_type = TREE_CHAIN (arg_type))
 	if (dependent_type_p (TREE_VALUE (arg_type)))
 	  return true;
+      if (cxx_dialect >= cxx1z)
+	{
+	  /* A value-dependent noexcept-specifier makes the type dependent.  */
+	  tree spec = TYPE_RAISES_EXCEPTIONS (type);
+	  if (spec && TREE_PURPOSE (spec)
+	      && value_dependent_expression_p (TREE_PURPOSE (spec)))
+	    return true;
+	}
       return false;
     }
   /* -- an array type constructed from any dependent type or whose
diff --git a/gcc/testsuite/g++.dg/cpp1z/noexcept-type15.C b/gcc/testsuite/g++.dg/cpp1z/noexcept-type15.C
new file mode 100644
index 00000000000..cc5a3edf1e4
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1z/noexcept-type15.C
@@ -0,0 +1,11 @@
+// PR c++/80384
+// { dg-options -std=c++17 }
+
+template<class> struct foo;
+template<bool B>
+struct foo<int() noexcept(B)> {
+    static const bool value = B; 
+};
+
+static_assert(!foo<int()>::value);
+static_assert(foo<int() noexcept>::value);