Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.

2019-08-02  Martin Liska  <[email protected]>

	* decl.c (grok_op_properties):
	Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
2019-08-02  Martin Liska  <[email protected]>

	* g++.dg/cpp1y/new2.C: New test.

From-SVN: r273996

gcc/cp/ChangeLog

@@ -1,3 +1,8 @@
+2019-08-02  Martin Liska  <[email protected]>
+
+	* decl.c (grok_op_properties):
+	Mark DECL_SET_IS_OPERATOR_DELETE for user-provided delete operators.
+
 2019-08-01  Martin Sebor  <[email protected]>
 
 	PR c++/90947

gcc/cp/decl.c

@@ -13678,7 +13678,10 @@ grok_op_properties (tree decl, bool complain)
 	}
 
       if (op_flags & OVL_OP_FLAG_DELETE)
-	coerce_delete_type (decl, loc);
+	{
+	  DECL_SET_IS_OPERATOR_DELETE (decl, true);
+	  coerce_delete_type (decl, loc);
+	}
       else
 	{
 	  DECL_SET_IS_OPERATOR_NEW (decl, true);

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2019-08-02  Martin Liska  <[email protected]>
+
+	* g++.dg/cpp1y/new2.C: New test.
+
 2019-08-02  Senthil Kumar Selvaraj  <[email protected]>
 
 	* gcc.dg/torture/ssa-fre-6.c: Add dg-require-effective-target int32.

gcc/testsuite/g++.dg/cpp1y/new2.C

@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -std=c++17 -fdump-tree-cddce-details" } */
+
+#include <cstdio>
+#include <cstdlib>
+#include <new>
+
+void* operator new(std::size_t sz)
+{
+  std::printf("global op new called, size = %zu\n", sz);
+  void *ptr = std::malloc(sz);
+  if (ptr)
+    return ptr;
+  else
+    throw std::bad_alloc{};
+}
+
+void operator delete(void* ptr) noexcept
+{
+  std::puts("global op delete called");
+  std::free(ptr);
+}
+
+void
+new_primitive_load() {
+  int *x = new int;
+  int tmp = *x;
+  delete x;
+}
+
+void
+new_array_load() {
+  int *x = new int[10];
+  int tmp = x[4];
+  delete [] x;
+}
+
+/* { dg-final { scan-tree-dump-times "Deleting : _\\d+ = operator new" 2 "cddce1"} } */
+/* { dg-final { scan-tree-dump-times "Deleting : operator delete" 2 "cddce1"} } */