diff mbox

Fix PR48042

Message ID alpine.LNX.2.00.1112091315430.4527@zhemvz.fhfr.qr
State New
Headers show

Commit Message

Richard Biener Dec. 9, 2011, 12:21 p.m. UTC 
I'm testing the following to avoid ICEing when using LTO and
mismatched -g vs. -g0 during compile/link phase by not conditionally
clearing things in free_lang_data_in_decl.
(Similar code is in free_lang_data_in_type, but without a testcase
I don't want to remove it)

LTO bootstrap and regtest running on x86_64-unknown-linux-gnu.

Richard.

2011-12-09  Richard Guenther  <rguenther@suse.de>

	PR lto/48042
	* tree.c (free_lang_data_in_decl): Remove freeing conditional
	on debuginfo level.

	* g++.dg/lto/pr48042_0.C: New testcase.
diff mbox

Patch

Index: gcc/tree.c
===================================================================
--- gcc/tree.c	(revision 182154)
+++ gcc/tree.c	(working copy)
@@ -4600,11 +4591,6 @@  free_lang_data_in_decl (tree decl)
   if (TREE_CODE (decl) == FIELD_DECL)
     free_lang_data_in_one_sizepos (&DECL_FIELD_OFFSET (decl));
 
- /* DECL_FCONTEXT is only used for debug info generation.  */
- if (TREE_CODE (decl) == FIELD_DECL
-     && debug_info_level < DINFO_LEVEL_TERSE)
-   DECL_FCONTEXT (decl) = NULL_TREE;
-
  if (TREE_CODE (decl) == FUNCTION_DECL)
     {
       if (gimple_has_body_p (decl))
Index: gcc/testsuite/g++.dg/lto/pr48042_0.C
===================================================================
--- gcc/testsuite/g++.dg/lto/pr48042_0.C	(revision 0)
+++ gcc/testsuite/g++.dg/lto/pr48042_0.C	(revision 0)
@@ -0,0 +1,14 @@ 
+// { dg-lto-do link }
+// { dg-extra-ld-options "-r -nostdlib -g" }
+
+class A {
+    virtual int x() = 0;
+};
+
+class B:public A {
+    int x();
+};
+
+int B::x() {
+}
+