http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56570
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-linux-gnu
Host| |x86_64-linux-gnu
--- Comment #1 from Martin Jambor <jamborm at gcc dot gnu.org> 2013-03-08
10:39:52 UTC ---
Let me copy over here from PR 45375 the backtrace:
#0 0x0000000000f89a73 in get_location_from_adhoc_loc (set=0x7ffff7ff2000,
loc=2947526575) at /home/mjambor/gcc/trunk/src/libcpp/line-map.c:165
#1 0x0000000000c247fe in inlined_function_outer_scope_p (block=0x7fffee4bcb28)
at /home/mjambor/gcc/trunk/src/gcc/tree.h:5561
#2 pack_ts_block_value_fields (expr=0x7fffee4bcb28, bp=0x7fffffffd1a0,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:319
#3 streamer_pack_tree_bitfields (ob=0x1c73210, bp=0x7fffffffd1a0,
expr=0x7fffee4bcb28)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:417
#4 0x00000000009c3bc9 in lto_write_tree (ref_p=true, expr=0x7fffee4bcb28,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:317
#5 lto_output_tree (ob=0x1c73210, expr=0x7fffee4bcb28, ref_p=true,
this_ref_p=<optimized out>) at
/home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:410
#6 0x0000000000c26617 in write_ts_common_tree_pointers (ref_p=true,
expr=0x7ffff3f6bc80, ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:514
#7 streamer_write_tree_body (ob=0x1c73210, expr=0x7ffff3f6bc80,
ref_p=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:845
#8 0x00000000009c3bf7 in lto_write_tree (ref_p=true, expr=0x7ffff3f6bc80,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:321
#9 lto_output_tree (ob=ob@entry=0x1c73210, expr=0x7ffff3f6bc80,
ref_p=ref_p@entry=true,
this_ref_p=this_ref_p@entry=true)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:410
#10 0x0000000000c26e62 in write_ts_exp_tree_pointers (ref_p=<optimized out>,
expr=<optimized out>, ob=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:747
#11 streamer_write_tree_body (ob=0x1c73210, expr=0x7fffecc63dc0,
ref_p=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:884
#12 0x00000000009c3bf7 in lto_write_tree (ref_p=true, expr=0x7fffecc63dc0,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:321
#13 lto_output_tree (ob=0x1c73210, expr=0x7fffecc63dc0, ref_p=true,
this_ref_p=<optimized out>) at
/home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:410
#14 0x0000000000c26df8 in write_ts_exp_tree_pointers (ref_p=<optimized out>,
expr=<optimized out>, ob=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:746
#15 streamer_write_tree_body (ob=0x1c73210, expr=0x7fffecc70078,
ref_p=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:884
#16 0x00000000009c3bf7 in lto_write_tree (ref_p=true, expr=0x7fffecc70078,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:321
#17 lto_output_tree (ob=ob@entry=0x1c73210, expr=0x7fffecc70078,
ref_p=ref_p@entry=true,
this_ref_p=this_ref_p@entry=true)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:410
#18 0x0000000000c2681d in write_ts_decl_common_tree_pointers (ref_p=true,
expr=0x7fffecc6d720, ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:584
#19 streamer_write_tree_body (ob=0x1c73210, expr=0x7fffecc6d720,
ref_p=<optimized out>)
at /home/mjambor/gcc/trunk/src/gcc/tree-streamer-out.c:857
#20 0x00000000009c3bf7 in lto_write_tree (ref_p=true, expr=0x7fffecc6d720,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:321
#21 lto_output_tree (ob=0x1c73210, expr=0x7fffecc6d720, ref_p=true,
this_ref_p=<optimized out>) at
/home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:410
#22 0x0000000000ecd118 in output_gimple_stmt (stmt=0x7fffec6206c0,
ob=0x1c73210)
at /home/mjambor/gcc/trunk/src/gcc/gimple-streamer-out.c:143
#23 output_bb (ob=0x1c73210, bb=0x7fffed130f08, fn=0x7fffef8603f0)
at /home/mjambor/gcc/trunk/src/gcc/gimple-streamer-out.c:199
#24 0x00000000009c4f26 in output_function (node=0x7fffef8614a0)
at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:823
#25 lto_output () at /home/mjambor/gcc/trunk/src/gcc/lto-streamer-out.c:987
#26 0x00000000009fa971 in ipa_write_summaries_2 (
pass=0x1618f00 <pass_ipa_lto_gimple_out>, state=0x1ad8c00)
at /home/mjambor/gcc/trunk/src/gcc/passes.c:2408
I am not sure to what extent it matters, given that the failure
apparently depends on when certain GC takes place, but the first
failing revision is 196174:
commit 560965e9b33deb5fa67c848c8b14ea7bbb42e8a2
Author: rguenth
Date: Wed Feb 20 15:19:13 2013 +0000
2013-02-20 Richard Biener <rguent...@suse.de>
* tree-call-cdce.c (tree_call_cdce): Do not remove unused locals.
* tree-ssa-forwprop.c (ssa_forward_propagate_and_combine): Likewise.
* tree-ssa-dce.c (perform_tree_ssa_dce): Likewise.
* tree-ssa-copyrename.c (copy_rename_partition_coalesce): Do
not return anything.
(rename_ssa_copies): Do not remove unused locals.
* tree-ssa-ccp.c (do_ssa_ccp): Likewise.
* tree-ssanames.c (pass_release_ssa_names): Remove unused
locals first.
* passes.c (execute_function_todo): Do not schedule unused locals
removal if cleanup_tree_cfg did something.
* tree-ssa-live.c (remove_unused_locals): Dump statistics
about the number of removed locals.
* gcc.dg/tree-ssa/forwprop-8.c: Adjust.
