http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46911
Summary: [4.6 Regression] ICE: SIGSEGV in
add_name_and_src_coords_attributes (dwarf2out.c:17792)
with -flto -g
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: zso...@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
----- testcase.f -----
common/main1/ eps(2)
call dalie6s(iqmod6,1,wx,cor6d)
end
----------------------
reduced from gfortran.dg/lto/20091015-1_2.f
Compiler output:
$ gfortran -O -finline-small-functions -flto -g testcase.f -r -nostdlib
==5279== Invalid read of size 2
==5279== at 0x5C75BC: add_name_and_src_coords_attributes (dwarf2out.c:17792)
==5279== by 0x5D8104: gen_variable_die (dwarf2out.c:19400)
==5279== by 0x5DCF14: gen_decl_die (dwarf2out.c:20981)
==5279== by 0x5DA34A: decls_for_scope (dwarf2out.c:20555)
==5279== by 0x5DF38B: gen_block_die (dwarf2out.c:19669)
==5279== by 0x5DA37D: decls_for_scope (dwarf2out.c:20567)
==5279== by 0x5DF582: gen_block_die (dwarf2out.c:19701)
==5279== by 0x5DA37D: decls_for_scope (dwarf2out.c:20567)
==5279== by 0x5DA8FF: gen_subprogram_die (dwarf2out.c:19277)
==5279== by 0x5DCDA2: gen_decl_die (dwarf2out.c:20914)
==5279== by 0x5E00E8: dwarf2out_function_decl (dwarf2out.c:21296)
==5279== by 0x638FCC: rest_of_handle_final (final.c:4286)
==5279== by 0x771ADE: execute_one_pass (passes.c:1553)
==5279== by 0x771DA4: execute_pass_list (passes.c:1608)
==5279== by 0x771DB6: execute_pass_list (passes.c:1609)
==5279== by 0x771DB6: execute_pass_list (passes.c:1609)
==5279== by 0x8B2605: tree_rest_of_compilation (tree-optimize.c:422)
==5279== by 0xA77EB1: cgraph_expand_function (cgraphunit.c:1508)
==5279== by 0xA7A489: cgraph_optimize (cgraphunit.c:1567)
==5279== by 0x4FF78E: lto_main (lto.c:2453)
==5279== by 0x85BDE7: toplev_main (toplev.c:579)
==5279== by 0x6369BBC: (below main) (in /lib64/libc-2.11.2.so)
==5279== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==5279==
In file included from :0:0:
testcase.f: In function 'main':
testcase.f:3:0: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
lto-wrapper:
/mnt/svn/gcc-trunk/binary-167643-lto-fortran-checking-yes-rtl-df/bin/gfortran
returned 1 exit status
collect2: lto-wrapper returned 1 exit status
Tested revisions:
r167643 - crash
r165699 - crash
r161659 - OK
4.5 r166509 - OK
