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re PR lto/48954 (ICE: SIGSEGV in bitmap_count_bits (bitmap.c:719) with -O2 -flto -fno-early-inlining -fkeep-inline-functions) 

PR lto/48954
	* lto-cgraph.c (output_node_opt_summary): Handle NULL skip args bitmaps.
	* g++.dg/torture/pr48954.C: New testcase.

From-SVN: r174644
This commit is contained in:
Jan Hubicka 2011-06-04 18:20:36 +02:00 committed by Jan Hubicka
parent 014ab419ef
commit 26740835ec
4 changed files with 56 additions and 8 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-06-04 Jan Hubicka <jh@suse.cz>
PR lto/48954
* lto-cgraph.c (output_node_opt_summary): Handle NULL skip args bitmaps.
2011-06-04 Jonathan Wakely <jwakely.gcc@gmail.com>
* doc/invoke.texi: Document -Wdelete-non-virtual-dtor.

26
gcc/lto-cgraph.c
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@ -1598,14 +1598,24 @@ output_node_opt_summary (struct output_block *ob,
int i;
struct cgraph_edge *e;
lto_output_uleb128_stream (ob->main_stream,
bitmap_count_bits (node->clone.args_to_skip));
EXECUTE_IF_SET_IN_BITMAP (node->clone.args_to_skip, 0, index, bi)
lto_output_uleb128_stream (ob->main_stream, index);
lto_output_uleb128_stream (ob->main_stream,
bitmap_count_bits (node->clone.combined_args_to_skip));
EXECUTE_IF_SET_IN_BITMAP (node->clone.combined_args_to_skip, 0, index, bi)
lto_output_uleb128_stream (ob->main_stream, index);
if (node->clone.args_to_skip)
{
lto_output_uleb128_stream (ob->main_stream,
bitmap_count_bits (node->clone.args_to_skip));
EXECUTE_IF_SET_IN_BITMAP (node->clone.args_to_skip, 0, index, bi)
lto_output_uleb128_stream (ob->main_stream, index);
}
else
lto_output_uleb128_stream (ob->main_stream, 0);
if (node->clone.combined_args_to_skip)
{
lto_output_uleb128_stream (ob->main_stream,
bitmap_count_bits (node->clone.combined_args_to_skip));
EXECUTE_IF_SET_IN_BITMAP (node->clone.combined_args_to_skip, 0, index, bi)
lto_output_uleb128_stream (ob->main_stream, index);
}
else
lto_output_uleb128_stream (ob->main_stream, 0);
lto_output_uleb128_stream (ob->main_stream,
VEC_length (ipa_replace_map_p, node->clone.tree_map));
FOR_EACH_VEC_ELT (ipa_replace_map_p, node->clone.tree_map, i, map)

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2011-06-04 Jan Hubicka <jh@suse.cz>
PR lto/48954
* g++.dg/torture/pr48954.C: New testcase.
2011-06-04 Jonathan Wakely <jwakely.gcc@gmail.com>
* testsuite/g++.dg/warn/delete-non-virtual-dtor.C: New.

28
gcc/testsuite/g++.dg/torture/pr48954.C Normal file
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@ -0,0 +1,28 @@
/* { dg-do compile } */
/* { dg-options "-O2 -flto -fno-early-inlining -fkeep-inline-functions" } */
struct A
{
virtual void foo () = 0;
};
struct B : A {};
struct C : A {};
struct D: C, B
{
void foo () {}
};
static inline void
bar (B *b)
{
b->foo ();
}
int
main ()
{
D d;
for (;;)
bar (&d);
}