[PATCH] Fix PR c++/68831 (superfluous -Waddress warning for C++ delete)
Patrick Palka
patrick@parcs.ath.cx
Thu Dec 10 23:55:00 GMT 2015
Is this OK to commit if bootstrap + regtest on x86_64 succeeds?
gcc/cp/ChangeLog:
PR c++/68831
* init.c (build_delete): Use a warning sentinel to disable
-Waddress warnings when building the conditional that tests
if the operand is NULL.
gcc/testsuite/ChangeLog:
PR c++/68831
* g++.dg/pr68831.C: New test.
---
gcc/cp/init.c | 1 +
gcc/testsuite/g++.dg/pr68831.C | 10 ++++++++++
2 files changed, 11 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/pr68831.C
diff --git a/gcc/cp/init.c b/gcc/cp/init.c
index 5ecf9fb..2fffc61 100644
--- a/gcc/cp/init.c
+++ b/gcc/cp/init.c
@@ -4439,6 +4439,7 @@ build_delete (tree otype, tree addr, special_function_kind auto_delete,
else
{
/* Handle deleting a null pointer. */
+ warning_sentinel s (warn_address);
ifexp = fold (cp_build_binary_op (input_location,
NE_EXPR, addr, nullptr_node,
complain));
diff --git a/gcc/testsuite/g++.dg/pr68831.C b/gcc/testsuite/g++.dg/pr68831.C
new file mode 100644
index 0000000..8d32819
--- /dev/null
+++ b/gcc/testsuite/g++.dg/pr68831.C
@@ -0,0 +1,10 @@
+// PR c++/68831
+// { dg-options "-Waddress" }
+
+class DenseMap {
+public:
+ ~DenseMap();
+};
+extern const DenseMap &GCMap;
+void foo() { delete &GCMap; }
+
--
2.6.4.491.gda30757.dirty
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