[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 Kai Tietz ktietz at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED CC||ktietz at gcc dot gnu.org Resolution|--- |FIXED --- Comment #22 from Kai Tietz ktietz at gcc dot gnu.org --- As issue was fixed for 4.8 and also for 4.9, I close this bug.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #21 from rbmj at verizon dot net 2012-11-01 18:05:36 UTC --- That fixes it for me :)
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #20 from eraman at gcc dot gnu.org 2012-10-31 23:28:52 UTC --- Author: eraman Date: Wed Oct 31 23:28:45 2012 New Revision: 193052 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=193052 Log: 2012-10-31 Easwaran Raman era...@google.com PR target/54938 PR middle-end/54957 * optabs.c (emit_cmp_and_jump_insn_1): Add REG_BR_PROB note only if it doesn't already exist. * stmt.c (get_outgoing_edge_probs): Return 0 if BB is NULL. (emit_case_dispatch_table): Handle the case where STMT_BB is NULL. (expand_sjlj_dispatch_table): Pass BB containing before_case to emit_case_dispatch_table. Modified: trunk/gcc/ChangeLog trunk/gcc/optabs.c trunk/gcc/stmt.c
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 rbmj at verizon dot net changed: What|Removed |Added CC||rbmj at verizon dot net --- Comment #18 from rbmj at verizon dot net 2012-10-30 01:56:42 UTC --- Works for powerpc-wrs-vxworks as well.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #19 from rbmj at verizon dot net 2012-10-30 01:59:10 UTC --- *** Bug 55126 has been marked as a duplicate of this bug. ***
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #17 from Jorn Wolfgang Rennecke amylaar at gcc dot gnu.org 2012-10-28 16:37:46 UTC --- (In reply to comment #8) Created attachment 28466 [details] Proposed patch Handle the possibility that stmt_bb may be NULL in emit_case_dispatch_table. Untested. It works for arc-elf32.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 Mikael Pettersson mikpe at it dot uu.se changed: What|Removed |Added CC||mikpe at it dot uu.se --- Comment #16 from Mikael Pettersson mikpe at it dot uu.se 2012-10-27 15:15:28 UTC --- PR55014 is another build failure caused by r192488, this time on x86_64-w64-mingw32 and i686-w64-mingw32 in libstdc++. The proposed patch in comment 8 fixes that failure as well.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 Ulrich Weigand uweigand at gcc dot gnu.org changed: What|Removed |Added CC||uweigand at gcc dot gnu.org --- Comment #14 from Ulrich Weigand uweigand at gcc dot gnu.org 2012-10-23 17:10:11 UTC --- I'm getting the same crash when building libstdc++ for spu-elf: Program received signal SIGSEGV, Segmentation fault. emit_case_dispatch_table (index_expr=0xf601b1c0, index_type=0xf5e70420, case_list=0x110001c0, default_label=0xeda05398, minval=0xf5dd0bc0, maxval=0xf5dd3740, range=0xf5dd3740, stmt_bb=0x0) at /home/uweigand/fsf/gcc-head/gcc/stmt.c:1919 1919 edge default_edge = EDGE_SUCC(stmt_bb, 0); (gdb) bt #0 emit_case_dispatch_table (index_expr=0xf601b1c0, index_type=0xf5e70420, case_list=0x110001c0, default_label=0xeda05398, minval=0xf5dd0bc0, maxval=0xf5dd3740, range=0xf5dd3740, stmt_bb=0x0) at /home/uweigand/fsf/gcc-head/gcc/stmt.c:1919 #1 0x1079240c in expand_sjlj_dispatch_table (dispatch_index=value optimized out, dispatch_table=0x10fe6108) at /home/uweigand/fsf/gcc-head/gcc/stmt.c:2292 #2 0x104ac3c4 in sjlj_emit_dispatch_table (dispatch_label=0xeda03980, num_dispatch=8) at /home/uweigand/fsf/gcc-head/gcc/except.c:1363 #3 0x104ac6f0 in sjlj_build_landing_pads () at /home/uweigand/fsf/gcc-head/gcc/except.c:1420 #4 0x104acb4c in finish_eh_generation () at /home/uweigand/fsf/gcc-head/gcc/except.c:1454 #5 0x103ddc24 in gimple_expand_cfg () at /home/uweigand/fsf/gcc-head/gcc/cfgexpand.c:4579 #6 0x106e1608 in execute_one_pass (pass=0x10ec19b4) at /home/uweigand/fsf/gcc-head/gcc/passes.c:2320 #7 0x106e1cb4 in execute_pass_list (pass=0x10ec19b4) at /home/uweigand/fsf/gcc-head/gcc/passes.c:2381 #8 0x10406770 in expand_function (node=0xf1998e50) at /home/uweigand/fsf/gcc-head/gcc/cgraphunit.c:1601 #9 0x10407b44 in expand_all_functions () at /home/uweigand/fsf/gcc-head/gcc/cgraphunit.c:1705 #10 0x10408060 in compile () at /home/uweigand/fsf/gcc-head/gcc/cgraphunit.c:2003 #11 0x1040942c in finalize_compilation_unit () at /home/uweigand/fsf/gcc-head/gcc/cgraphunit.c:2080 #12 0x101c5fc0 in cp_write_global_declarations () at /home/uweigand/fsf/gcc-head/gcc/cp/decl2.c:4286 #13 0x107a6ef4 in compile_file () at /home/uweigand/fsf/gcc-head/gcc/toplev.c:560 #14 0x107a77ec in do_compile () at /home/uweigand/fsf/gcc-head/gcc/toplev.c:1866 #15 0x107a85bc in toplev_main (argc=23, argv=0xffabf8c4) at /home/uweigand/fsf/gcc-head/gcc/toplev.c:1942 #16 0x10c0f6d0 in main (argc=value optimized out, argv=value optimized out) at /home/uweigand/fsf/gcc-head/gcc/main.c:36
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957
--- Comment #15 from Dmitry Gorbachev d.g.gorbachev at gmail dot com
2012-10-23 21:16:37 UTC ---
Mingw32 target, GCC 4.8.0 20121021 (experimental).
$ cat bug.cc
struct S {
~S();
};
int main()
{
S s1, s2, s3, s4, s5, s6, s7;
return 0;
}
^D
$ g++ bug.cc
bug.cc: In function 'int main()':
bug.cc:9:1: internal compiler error: Segmentation fault
}
^
0x87e5f10 crash_signal
../../gcc-4.8/gcc/toplev.c:335
0x87d2428 emit_case_dispatch_table
../../gcc-4.8/gcc/stmt.c:1919
0x87d4ae5 expand_sjlj_dispatch_table(rtx_def*, vec_ttree_node**)
../../gcc-4.8/gcc/stmt.c:2292
0x853e6cc sjlj_emit_dispatch_table
../../gcc-4.8/gcc/except.c:1363
0x853f900 sjlj_build_landing_pads
../../gcc-4.8/gcc/except.c:1420
0x853fa5b finish_eh_generation()
../../gcc-4.8/gcc/except.c:1454
0x8487921 gimple_expand_cfg
../../gcc-4.8/gcc/cfgexpand.c:4579
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See http://gcc.gnu.org/bugs.html for instructions.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 Jorn Wolfgang Rennecke amylaar at gcc dot gnu.org changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed||2012-10-22 CC||amylaar at gcc dot gnu.org Ever Confirmed|0 |1 --- Comment #13 from Jorn Wolfgang Rennecke amylaar at gcc dot gnu.org 2012-10-22 23:37:07 UTC --- (In reply to comment #0) Program received signal SIGSEGV, Segmentation fault. 0x087696fb in emit_case_dispatch_table (index_expr=0x1121f18, index_type=0x1403c0, case_list=0xa7de974, default_label=0x125e18c, minval=0x12b690, maxval=0x12bbf4, range=0x12bbf4, stmt_bb=0x0) at /builds/gnu-gcc-trunk/svn/arm-oabi/../gcc/stmt.c:1919 #0 0x087696fb in emit_case_dispatch_table (index_expr=0x1121f18, index_type=0x1403c0, case_list=0xa7de974, default_label=0x125e18c, minval=0x12b690, maxval=0x12bbf4, range=0x12bbf4, stmt_bb=0x0) at /builds/gnu-gcc-trunk/svn/arm-oabi/../gcc/stmt.c:1919 #1 0x08769fab in expand_sjlj_dispatch_table (dispatch_index=0x125bc9c, dispatch_table=0xa7b2be0) at /builds/gnu-gcc-trunk/svn/arm-oabi/../gcc/stmt.c:2292 I got essentially the same here for arc-elf32: Starting program: /home/joern/synopsys/arc_gnu_4.8-r192641/bd-elf32/gcc/cc1plus -fpreprocessed complex_io.ii -quiet -dumpbase complex_io.cc -auxbase-strip complex_io.o -g -O2 -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi -version -fno-implicit-templates -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -frandom-seed=complex_io.lo -o complex_io.s GNU C++ (ARCompact elf32 toolchain (built 20121023)) version 4.8.0 20121020 (experimental) (arc-elf32) compiled by GNU C version 4.7.2 20120921 (Red Hat 4.7.2-2), GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C++ (ARCompact elf32 toolchain (built 20121023)) version 4.8.0 20121020 (experimental) (arc-elf32) compiled by GNU C version 4.7.2 20120921 (Red Hat 4.7.2-2), GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: ee7ca61d2a64c77d0855e3f95c0f285e Program received signal SIGSEGV, Segmentation fault. 0x086ac657 in emit_case_dispatch_table ( index_expr=index_expr@entry=0xb7081508, index_type=index_type@entry=0xb7bfc3c0, case_list=0x8d89bac, default_label=default_label@entry=0xb7096414, minval=minval@entry=0xb7be7618, maxval=maxval@entry=0xb7c9485c, range=range@entry=0xb7c9485c, stmt_bb=stmt_bb@entry=0x0) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/stmt.c:1919 1919 edge default_edge = EDGE_SUCC(stmt_bb, 0); (gdb) bt #0 0x086ac657 in emit_case_dispatch_table ( index_expr=index_expr@entry=0xb7081508, index_type=index_type@entry=0xb7bfc3c0, case_list=0x8d89bac, default_label=default_label@entry=0xb7096414, minval=minval@entry=0xb7be7618, maxval=maxval@entry=0xb7c9485c, range=range@entry=0xb7c9485c, stmt_bb=stmt_bb@entry=0x0) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/stmt.c:1919 #1 0x086b4104 in expand_sjlj_dispatch_table (dispatch_index=0xb7095438, dispatch_table=0x8d7e150) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/stmt.c:2292 #2 0x0847a661 in sjlj_emit_dispatch_table (num_dispatch=8, dispatch_label=0xb709296c) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/except.c:1363 #3 sjlj_build_landing_pads () at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/except.c:1420 #4 finish_eh_generation () at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/except.c:1454 #5 0x083d481b in gimple_expand_cfg () at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/cfgexpand.c:4579 #6 0x08615c6c in execute_one_pass (pass=pass@entry=0x8c5ca00) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/passes.c:2320 #7 0x08616095 in execute_pass_list (pass=0x8c5ca00) at /home/joern/synopsys/arc_gnu_4.8-r192641/unisrc/gcc/passes.c:2381
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #1 from Andrew Pinski pinskia at gcc dot gnu.org 2012-10-17 18:04:16 UTC --- arm-unknown-linux-gnu (not EABI) I thought that support was removed.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #2 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 18:04:49 UTC --- Created attachment 28464 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28464 preprocessed src (not reduced)
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #3 from Easwaran Raman eraman at google dot com 2012-10-17 18:08:24 UTC --- (In reply to comment #0) http://gcc.gnu.org/viewcvs?view=revisionrevision=192488 sh4-unknown-linux-gnu no longer builds libgcc. 0x7df7df emit_cmp_and_jump_insn_1 ../../gcc/optabs.c:4273 0x7df7df emit_cmp_and_jump_insns(rtx_def*, rtx_def*, rtx_code, rtx_def*, machine_mode, int, rtx_def*, int) ../../gcc/optabs.c:4324 0x6136f6 do_compare_rtx_and_jump(rtx_def*, rtx_def*, rtx_code, int, machine_mode, rtx_def*, rtx_def*, rtx_def*, int) ../../gcc/dojump.c:1072 0x61479b do_compare_and_jump ../../gcc/dojump.c:1154 0x6164c1 do_jump_1(tree_code, tree_node*, tree_node*, rtx_def*, rtx_def*, int) ../../gcc/dojump.c:206 0x5ba1de expand_gimple_cond ../../gcc/cfgexpand.c:1852 0x5c1b9b expand_gimple_basic_block ../../gcc/cfgexpand.c:3832 0x5c2ec5 gimple_expand_cfg ../../gcc/cfgexpand.c:4477 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See http://gcc.gnu.org/bugs.html for instructions. The first one seems a dup of http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54938. The obvious fix is to remove the assert. Will send out a patch.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #4 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 18:10:25 UTC --- (In reply to comment #1) arm-unknown-linux-gnu (not EABI) I thought that support was removed. I have a local patch re-enabling it, but I don't think it's specific to the configuration. Do you? I can try to reproduce it on another target..
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #5 from Easwaran Raman eraman at google dot com 2012-10-17 18:24:48 UTC --- Created attachment 28465 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28465 Proposed patch
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #6 from Easwaran Raman eraman at google dot com 2012-10-17 18:26:30 UTC --- (In reply to comment #5) Created attachment 28465 [details] Proposed patch I haven't tested the patch. Ryan, could you please confirm this patch fixes the crashes? Thanks, Easwaran
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #7 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 18:29:45 UTC --- (In reply to comment #6) (In reply to comment #5) Created attachment 28465 [details] Proposed patch I haven't tested the patch. Ryan, could you please confirm this patch fixes the crashes? The patch fixes the crash in emit_cmp_and_jump_insn_1, but not the one in emit_case_dispatch_table.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 Easwaran Raman eraman at google dot com changed: What|Removed |Added Attachment #28465|0 |1 is obsolete|| --- Comment #8 from Easwaran Raman eraman at google dot com 2012-10-17 18:56:14 UTC --- Created attachment 28466 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28466 Proposed patch Handle the possibility that stmt_bb may be NULL in emit_case_dispatch_table. Untested.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #9 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 19:05:36 UTC --- (In reply to comment #8) Created attachment 28466 [details] Proposed patch Handle the possibility that stmt_bb may be NULL in emit_case_dispatch_table. Untested. I was able to reproduce the crash in emit_case_dispatch_table on a stock sh4-unknown-linux-gnu configuration with another testcase. This patch fixes the all crashes I've seen so far.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #10 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 19:47:08 UTC --- Created attachment 28467 -- http://gcc.gnu.org/bugzilla/attachment.cgi?id=28467 emit_case_dispatch_table testcase Here's a csmith generated testcase that crashes with -O0 -fexceptions on sh4-unknown-linux-gnu. It's slightly reduced but I can reduce it further by hand if necessary.
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #11 from Easwaran Raman eraman at google dot com 2012-10-17 20:31:21 UTC --- (In reply to comment #10) Created attachment 28467 [details] emit_case_dispatch_table testcase Here's a csmith generated testcase that crashes with -O0 -fexceptions on sh4-unknown-linux-gnu. It's slightly reduced but I can reduce it further by hand if necessary. Does my second patch fix this as well or is it still there? - Easwaran
[Bug middle-end/54957] Two crashes introduced by rev192488
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54957 --- Comment #12 from Ryan Mansfield rmansfield at qnx dot com 2012-10-17 20:38:56 UTC --- (In reply to comment #11) (In reply to comment #10) Created attachment 28467 [details] emit_case_dispatch_table testcase Here's a csmith generated testcase that crashes with -O0 -fexceptions on sh4-unknown-linux-gnu. It's slightly reduced but I can reduce it further by hand if necessary. Does my second patch fix this as well or is it still there? Sorry for being unclear. Yes, it fixes the crash. I was attaching it in as a reference.
