http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47009
Summary: [4.6 Regression] ICE: SIGSEGV (too deep recursion) in
cgraph_clone_inlined_nodes with -O
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 22817
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22817
reduced testcase (from g++.dg/opt/inline10.C)
Compiler output:
$ gcc -O pr47009.C
Program received signal SIGSEGV, Segmentation fault.
lookup_attribute (attr_name=0x1231777 "leaf", list=0x0) at
/mnt/svn/gcc-trunk/gcc/tree.c:5210
5210 size_t attr_len = strlen (attr_name);
(gdb) bt
#0 lookup_attribute (attr_name=0x1231777 "leaf", list=0x0) at
/mnt/svn/gcc-trunk/gcc/tree.c:5210
#1 0x000000000071b073 in flags_from_decl_or_type (exp=0x7ffff5d1b200) at
/mnt/svn/gcc-trunk/gcc/calls.c:613
#2 0x00000000008869e6 in gimple_call_flags (stmt=0x7ffff7ed3480) at
/mnt/svn/gcc-trunk/gcc/gimple.c:1786
#3 0x0000000000a583c8 in gimple_call_nothrow_p (stmt=0x7ffff7ed3480) at
/mnt/svn/gcc-trunk/gcc/gimple.h:2313
#4 stmt_could_throw_p (stmt=0x7ffff7ed3480) at
/mnt/svn/gcc-trunk/gcc/tree-eh.c:2530
#5 stmt_could_throw_p (stmt=0x7ffff7ed3480) at
/mnt/svn/gcc-trunk/gcc/tree-eh.c:2517
#6 0x0000000000a5acb9 in stmt_can_throw_external (stmt=0x7ffff7ed3480) at
/mnt/svn/gcc-trunk/gcc/tree-eh.c:2581
#7 0x0000000000c36810 in cgraph_create_edge_1 (caller=0x7ffff0913000,
callee=0x7ffff0912dc0, call_stmt=0x7ffff7ed3480,
count=0, freq=1000, nest=<value optimized out>) at
/mnt/svn/gcc-trunk/gcc/cgraph.c:1036
#8 0x0000000000c369de in cgraph_create_edge (caller=0x7ffff0913000,
callee=0x7ffff0912dc0,
call_stmt=<value optimized out>, count=<value optimized out>, freq=<value
optimized out>, nest=<value optimized out>)
at /mnt/svn/gcc-trunk/gcc/cgraph.c:1055
#9 0x0000000000c38d77 in cgraph_clone_edge (e=0x7ffff0911680, n=<value
optimized out>, call_stmt=0x7ffff7ed3480,
stmt_uid=0, count_scale=<value optimized out>, freq_scale=<value optimized
out>, loop_nest=38463,
update_original=0 '\000') at /mnt/svn/gcc-trunk/gcc/cgraph.c:2123
#10 0x0000000000c3930f in cgraph_clone_node (n=0x7ffff0912c60,
decl=0x7ffff5d1b200, count=<value optimized out>, freq=1000,
loop_nest=38463, update_original=0 '\000', redirect_callers=0x0) at
/mnt/svn/gcc-trunk/gcc/cgraph.c:2210
#11 0x0000000000c4a6ba in cgraph_clone_inlined_nodes (e=0x7ffff09116e8,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:265
#12 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff09116e8,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#13 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911680,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#14 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911618,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#15 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff09115b0,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#16 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911548,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#17 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff09114e0,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#18 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911478,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#19 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911410,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#20 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff09113a8,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#21 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911340,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#22 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff09112d8,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
#23 0x0000000000c4a74d in cgraph_clone_inlined_nodes (e=0x7ffff0911270,
duplicate=1 '\001', update_original=0 '\000')
at /mnt/svn/gcc-trunk/gcc/ipa-inline.c:288
...
Tested revisions:
r168026 - crash
r165699 - OK
