https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92430
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2019-11-11
CC| |iii at gcc dot gnu.org
Component|tree-optimization |rtl-optimization
Target Milestone|--- |9.3
Summary|[10 Regression] |[9/10 Regression]
|Compile-time hog w/ -Os |Compile-time hog w/ -Os
|-fno-if-conversion |-fno-if-conversion
|-fno-tree-dce |-fno-tree-dce
|-fno-tree-loop-optimize |-fno-tree-loop-optimize
|-fno-tree-vrp |-fno-tree-vrp
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
(gdb) bt
#0 set_depth_add (occ=0x34d4e18, d=7) at /tmp/trunk/gcc/et-forest.c:78
#1 0x0000000000c36aee in et_splay (occ=0x34d4bb0)
at /tmp/trunk/gcc/et-forest.c:415
#2 0x0000000000c36ed3 in et_split (t=0x3459d30)
at /tmp/trunk/gcc/et-forest.c:581
#3 0x0000000000c36c60 in et_free_tree (t=0x3459ca0)
at /tmp/trunk/gcc/et-forest.c:485
#4 0x0000000000b8e3f5 in delete_from_dominance_info (dir=CDI_DOMINATORS,
bb=<basic_block 0x7ffff69737b8 (3)>) at /tmp/trunk/gcc/dominance.c:1568
#5 0x0000000000adee87 in delete_basic_block (
bb=<basic_block 0x7ffff69737b8 (3)>) at /tmp/trunk/gcc/cfghooks.c:626
#6 0x0000000001f83e9b in try_optimize_cfg (mode=40)
at /tmp/trunk/gcc/cfgcleanup.c:2752
#7 0x0000000001f8536f in cleanup_cfg (mode=40)
at /tmp/trunk/gcc/cfgcleanup.c:3175
#8 0x0000000001f855f9 in (anonymous
namespace)::pass_jump_after_combine::execute (this=0x33304c0) at
/tmp/trunk/gcc/cfgcleanup.c:3315
#9 0x00000000010b20b7 in execute_one_pass (
(gdb) fin
Run till exit from #0 set_depth_add (occ=0x34d4e18, d=7)
at /tmp/trunk/gcc/et-forest.c:78
et_splay (occ=0x34d4bb0) at /tmp/trunk/gcc/et-forest.c:419
419 occ->parent = ggf;
(gdb)
Run till exit from #0 et_splay (occ=0x34d4bb0)
at /tmp/trunk/gcc/et-forest.c:419
(hangs)
Ilya, this is likely caused by your pass reorg. As this was also backported
please see where fixes are necessary.
