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* [gcc r14-1589] c++: add NRV testcase [PR58050]
@ 2023-06-07 1:33 Jason Merrill
0 siblings, 0 replies; only message in thread
From: Jason Merrill @ 2023-06-07 1:33 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:4fe84e2a4c0b600d2bc01f171b3b9dd1f4357208
commit r14-1589-g4fe84e2a4c0b600d2bc01f171b3b9dd1f4357208
Author: Jason Merrill <jason@redhat.com>
Date: Tue Jun 6 12:01:23 2023 -0400
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:
---
gcc/testsuite/g++.dg/opt/nrv24.C | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/gcc/testsuite/g++.dg/opt/nrv24.C b/gcc/testsuite/g++.dg/opt/nrv24.C
new file mode 100644
index 00000000000..7a7a59b26f7
--- /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();}
+}
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