Fix a typo in dwarf2out.c:resolve_args_picking_1

Under specific circumstances for Ada programs, such as in the testcase
this change adds, the DWARF back-end currently crashes because of
inconsistent internal state. This is due to a typo: a local variable is
called frame_offset_ but resolve_args_picking_1 wrongly modifies
emit-rtl.h's frame_offset instead.

This change fixes this typo.

gcc/
	* dwarf2out.c (resolve_args_picking_1): Replace the frame_offset
	occurence with frame_offset_ ones.

gcc/testsuite/
	* gnat.dg/debug5.adb: New testcase.

From-SVN: r235830

1 files changed, 22 insertions, 0 deletions

diff --git a/gcc/testsuite/gnat.dg/debug5.adb b/gcc/testsuite/gnat.dg/debug5.adb
new file mode 100644
index 0000000..6569a15
--- /dev/null
+++ b/gcc/testsuite/gnat.dg/debug5.adb
@@ -0,0 +1,22 @@
+-- { dg-do compile }
+-- { dg-options "-g" }
+
+procedure Debug5 is
+
+   type Record_Type (L1, L2 : Natural) is record
+      S1 : String (1 .. L1);
+      case L2 is
+         when 0      => null;
+         when others => S2 : String (L1 .. L2);
+      end case;
+   end record;
+
+   procedure Discard (R : Record_Type) is
+   begin
+      null;
+   end Discard;
+
+   R : constant Record_Type := (0, 0, others => <>);
+begin
+   Discard (R);
+end Debug5;