From: Marek Polacek <mpolacek@gcc.gnu.org>
Date: Sat, 8 Jun 2019 14:10:42 +0000 (+0000)
Subject: re PR c++/52269 ([C++11] Body of constexpr function templates instantiated too eagerl... 
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ec332875f8e2456bd104c16a553ac5ecad9024b3;p=gcc.git

re PR c++/52269 ([C++11] Body of constexpr function templates instantiated too eagerly in unevaluated operands)

	PR c++/52269
	* g++.dg/cpp0x/constexpr-decltype4.C: New test.

From-SVN: r272083
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index c7846a4addb..a2012ae73af 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,10 @@
+2019-06-08  Marek Polacek  <polacek@redhat.com>
+
+	PR c++/52269
+	* g++.dg/cpp0x/constexpr-decltype4.C: New test.
+
 2019-06-08  Thomas Koenig  <tkoenig@gcc.gnu.org>
-	Tomáš Trnka  <trnka@scm.com>
+	    Tomáš Trnka  <trnka@scm.com>
 
 	PR fortran/90744
 	* gfortran.dg/deferred_character_33.f90: New test.
diff --git a/gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C b/gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C
new file mode 100644
index 00000000000..64af90baee4
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/constexpr-decltype4.C
@@ -0,0 +1,21 @@
+// PR c++/52269
+// { dg-do compile { target c++11 } }
+
+template<typename T>
+int f(T x)
+{
+  return x.get();
+}
+
+// O.K. The body of `f' is not required.
+decltype(f(0)) a;
+
+template<typename T>
+constexpr int g(T x)
+{
+  return x.get();
+}
+
+// Seems to instantiate the body of `g'
+// and results in an error.
+decltype(g(0)) b;