On Tue, 25 Apr 2017, Andreas Schwab wrote:
> On Apr 21 2017, Richard Biener <rguent...@suse.de> wrote:
>
> > The following fixes uninitialized uses in pass_manager::pass_manager
> > which causes bootstrap failure when a fix for PR2972 is applied.
>
> This fails to properly initialize the pass_manager instance, causing cc1
> to crash later.
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x4000000000b417c1 in hash_table<hash_map<nofree_string_hash, opt_pass*,
> simple_hashmap_traits<default_hash_traits<nofree_string_hash>, opt_pass*>
> >::hash_entry, xcallocator>::find_with_hash (this=0x2000000000988140
> <_IO_2_1_stderr_>,
> comparable=@0x600ffffffffee790: 0x60000000002f3870 "tree-omplower",
> hash=1802803413) at ../../gcc/hash-map.h:57
> 57 static bool is_empty (const hash_entry &e) { return
> Traits::is_empty (e); }
> (gdb) bt
> #0 0x4000000000b417c1 in hash_table<hash_map<nofree_string_hash, opt_pass*,
> simple_hashmap_traits<default_hash_traits<nofree_string_hash>, opt_pass*>
> >::hash_entry, xcallocator>::find_with_hash (this=0x2000000000988140
> <_IO_2_1_stderr_>,
> comparable=@0x600ffffffffee790: 0x60000000002f3870 "tree-omplower",
> hash=1802803413) at ../../gcc/hash-map.h:57
> #1 0x4000000000b28e30 in hash_map<nofree_string_hash, opt_pass*,
> simple_hashmap_traits<default_hash_traits<nofree_string_hash>, opt_pass*>
> >::get (
> k=@0x600ffffffffee790: 0x60000000002f3870 "tree-omplower",
> this=0x2000000000988140 <_IO_2_1_stderr_>) at ../../gcc/hash-map.h:150
> #2 gcc::pass_manager::register_pass_name (this=0x60000000002ea0c0,
> pass=0x60000000002e7750, name=0x60000000002f3870 "tree-omplower")
> at ../../gcc/passes.c:857
> #3 0x4000000000b29850 in gcc::pass_manager::register_one_dump_file (
> this=0x60000000002ea0c0, pass=0x60000000002e7750) at
> ../../gcc/passes.c:827
> #4 0x4000000000b29b00 in gcc::pass_manager::register_dump_files (
> this=0x60000000002ea0c0, pass=0x60000000002e7750) at
> ../../gcc/passes.c:839
> #5 0x4000000000b3f4b0 in gcc::pass_manager::pass_manager (
> this=0x60000000002ea0c0, ctxt=<optimized out>) at ../../gcc/passes.c:1607
> #6 0x400000000049f110 in gcc::context::context (this=0x60000000002a2f00)
> at ../../gcc/context.c:39
> #7 0x400000000017def0 in general_init (init_signals=<optimized out>,
> argv0=<optimized out>) at ../../gcc/toplev.c:1159
> #8 toplev::main (this=0x600ffffffffef0e0, argc=2, argv=0x600ffffffffef388)
> at ../../gcc/toplev.c:2089
> #9 0x4000000000183e90 in main (argc=2, argv=0x600ffffffffef388)
> at ../../gcc/main.c:39
> (gdb) f 5
> #5 0x4000000000b3f4b0 in gcc::pass_manager::pass_manager (
> this=0x60000000002ea0c0, ctxt=<optimized out>) at ../../gcc/passes.c:1607
> 1607 register_dump_files (all_lowering_passes);
> (gdb) p m_name_to_pass_map
> $13 = (hash_map<nofree_string_hash, opt_pass*,
> simple_hashmap_traits<default_hash_traits<nofree_string_hash>, opt_pass*> >
> *) 0x2000000000988140 <_IO_2_1_stderr_>
>
> Andreas.
I am testing
2017-04-25 Richard Biener <rguent...@suse.de>
PR middle-end/80509
* passes.c (pass_manager::pass_manager): Initialize
m_name_to_pass_map.
Index: gcc/passes.c
===================================================================
--- gcc/passes.c (revision 247147)
+++ gcc/passes.c (working copy)
@@ -1532,7 +1532,7 @@ pass_manager::pass_manager (context *ctx
: all_passes (NULL), all_small_ipa_passes (NULL), all_lowering_passes (NULL),
all_regular_ipa_passes (NULL),
all_late_ipa_passes (NULL), passes_by_id (NULL), passes_by_id_size (0),
- m_ctxt (ctxt)
+ m_ctxt (ctxt), m_name_to_pass_map (NULL)
{
opt_pass **p;
