[PATCH] gdb/testsuite: Expand gdb.cp/mb-ctor.exp to test dynamic allocation

[Bruno Larsen <blarsen@redhat.com>]

When testing GDB's ability to stop in constructors, gdb.cp/mb-ctor.exp
only tested objects allocated on the stack. This commit adds a couple of
dynamic allocations and tests if GDB can stop in it as well.
---

This was inspired by an outstanding patch in Fedora's GDB tree. I'm not
sure if it is different enough to warrant testing, but I don't think it
would hurt either.

---
 gdb/testsuite/gdb.cp/mb-ctor.cc  |  6 ++++++
 gdb/testsuite/gdb.cp/mb-ctor.exp | 16 ++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/gdb/testsuite/gdb.cp/mb-ctor.cc b/gdb/testsuite/gdb.cp/mb-ctor.cc
index c54b4fece48..faa59f16459 100644
--- a/gdb/testsuite/gdb.cp/mb-ctor.cc
+++ b/gdb/testsuite/gdb.cp/mb-ctor.cc
@@ -64,5 +64,11 @@ int main()
      DeeplyDerived's ctor.  */
   DeeplyDerived dd(15);
 
+  Derived *dyn_d = new Derived (24);
+  DeeplyDerived *dyn_dd = new DeeplyDerived (42);
+
+  delete dyn_d;
+  delete dyn_dd;
+
   return 0;
 }
diff --git a/gdb/testsuite/gdb.cp/mb-ctor.exp b/gdb/testsuite/gdb.cp/mb-ctor.exp
index cf22be9caa8..4b445635205 100644
--- a/gdb/testsuite/gdb.cp/mb-ctor.exp
+++ b/gdb/testsuite/gdb.cp/mb-ctor.exp
@@ -59,6 +59,22 @@ gdb_test "continue" \
 
 gdb_continue_to_breakpoint "set breakpoint here, second time" ".* breakpoint here"
 
+gdb_test "continue" \
+    ".*Breakpoint.*Derived.*i=24.*" \
+    "run to breakpoint 1 dynamic v1"
+
+gdb_continue_to_breakpoint "set breakpoint here, first dynamic time" ".* breakpoint here"
+
+gdb_test "continue" \
+    ".*Breakpoint.*Derived.*i=42.*" \
+    "run to breakpoint 1 dynamic v2"
+
+gdb_continue_to_breakpoint "set breakpoint here, second dynamic time" ".* breakpoint here"
+
+gdb_test "continue" ".*Breakpoint.*~Derived.*" "Run to dynamic destructor v1"
+
+gdb_test "continue" ".*Breakpoint.*~Derived.*" "Run to dynamic destructor v2"
+
 gdb_test "continue" \
     ".*Breakpoint.*~Derived.*" \
     "run to breakpoint 3 v1"
-- 
2.31.1