From: Jason Merrill <jason@redhat.com>
Date: Tue, 6 Jun 2023 16:01:23 +0000 (-0400)
Subject: c++: add NRV testcase [PR58050]
X-Git-Tag: basepoints/gcc-15~8550
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4fe84e2a4c0b600d2bc01f171b3b9dd1f4357208;p=thirdparty%2Fgcc.git

c++: add NRV testcase [PR58050]

This was fixed in GCC 10.

	PR c++/58050

gcc/testsuite/ChangeLog:

	* g++.dg/opt/nrv24.C: New test.
---

diff --git a/gcc/testsuite/g++.dg/opt/nrv24.C b/gcc/testsuite/g++.dg/opt/nrv24.C
new file mode 100644
index 000000000000..7a7a59b26f7d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/nrv24.C
@@ -0,0 +1,18 @@
+// PR c++/58050
+// { dg-do link }
+
+struct B {
+  B() { }
+  B(const B&); // not defined, link error on unnecessary copy
+  ~B() { }
+};
+struct A {
+  static B make() { return B(); }
+} a;
+A *ap() { return &a; }
+int main () {
+  {B b = A::make();}
+  {B B = a.make();}
+  {B b = ap()->make();}
+  {B b = A().make();}
+}