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| author | Andi Kleen <ak@linux.intel.com> | 2017-12-11 16:13:53 +0000 |
|---|---|---|
| committer | Andi Kleen <ak@gcc.gnu.org> | 2017-12-11 16:13:53 +0000 |
| commit | ad3f54ab8e70aba72eb278d12d5e3c5d8b0de912 (patch) | |
| tree | 282ac512ba37da0ef146f2f06023ddd149dd17e4 /gcc/lto-streamer-in.c | |
| parent | 46bb9d29d3017715a7dbb9477612aff06f8c0994 (diff) | |
| download | gcc-ad3f54ab8e70aba72eb278d12d5e3c5d8b0de912.zip gcc-ad3f54ab8e70aba72eb278d12d5e3c5d8b0de912.tar.gz gcc-ad3f54ab8e70aba72eb278d12d5e3c5d8b0de912.tar.bz2 | |
Fix stack overflow with autofdo (PR83355)
g++.dg/bprob* is failing currently with autofdo.
Running in gdb shows that there is a very deep recursion in get_index_by_decl until it
overflows the stack.
gcc/:
2017-12-11 Andi Kleen <ak@linux.intel.com>
PR gcov-profile/83355
* auto-profile.c (string_table::get_index_by_decl): Don't
recurse when abstract origin points to itself.
From-SVN: r255540
Diffstat (limited to 'gcc/lto-streamer-in.c')
| -rw-r--r-- | gcc/lto-streamer-in.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/lto-streamer-in.c b/gcc/lto-streamer-in.c index fd6bd06..3db1d38 100644 --- a/gcc/lto-streamer-in.c +++ b/gcc/lto-streamer-in.c @@ -360,6 +360,8 @@ lto_input_tree_ref (struct lto_input_block *ib, struct data_in *data_in, case LTO_label_decl_ref: case LTO_translation_unit_decl_ref: case LTO_namelist_decl_ref: + if (!data_in->file_data->current_decl_state) + printf("tag %d\n", tag); ix_u = streamer_read_uhwi (ib); result = lto_file_decl_data_get_var_decl (data_in->file_data, ix_u); break; |