> It fixes:
>
> /home/marxin/Programming/gcc2/gcc/ipa-modref-tree.h:482:22: runtime error:
> load of value 255, which is not a valid value for type 'bool'
> #0 0x18e5df3 in modref_tree<int>::merge(modref_tree<int>*,
> vec<modref_parm_map, va_heap, vl_ptr>*)
> /home/marxin/Programming/gcc2/gcc/ipa-modref-tree.h:482
> #1 0x18dc180 in ipa_merge_modref_summary_after_inlining(cgraph_edge*)
> /home/marxin/Programming/gcc2/gcc/ipa-modref.c:1779
> #2 0x18c1c72 in inline_call(cgraph_edge*, bool, vec<cgraph_edge*,
> va_heap, vl_ptr>*, int*, bool, bool*)
> /home/marxin/Programming/gcc2/gcc/ipa-inline-transform.c:492
> #3 0x4a3589c in inline_small_functions
> /home/marxin/Programming/gcc2/gcc/ipa-inline.c:2216
> #4 0x4a3b230 in ipa_inline
> /home/marxin/Programming/gcc2/gcc/ipa-inline.c:2697
> #5 0x4a3d902 in execute
> /home/marxin/Programming/gcc2/gcc/ipa-inline.c:3096
> #6 0x1edf831 in execute_one_pass(opt_pass*)
> /home/marxin/Programming/gcc2/gcc/passes.c:2509
> #7 0x1ee26af in execute_ipa_pass_list(opt_pass*)
> /home/marxin/Programming/gcc2/gcc/passes.c:2936
> #8 0x103f31b in ipa_passes
> /home/marxin/Programming/gcc2/gcc/cgraphunit.c:2700
> #9 0x103fb40 in symbol_table::compile()
> /home/marxin/Programming/gcc2/gcc/cgraphunit.c:2777
> #10 0x104092b in symbol_table::finalize_compilation_unit()
> /home/marxin/Programming/gcc2/gcc/cgraphunit.c:3022
> #11 0x235723b in compile_file
> /home/marxin/Programming/gcc2/gcc/toplev.c:485
> #12 0x235fff9 in do_compile
> /home/marxin/Programming/gcc2/gcc/toplev.c:2321
> #13 0x23605fc in toplev::main(int, char**)
> /home/marxin/Programming/gcc2/gcc/toplev.c:2460
> #14 0x4e2b93b in main /home/marxin/Programming/gcc2/gcc/main.c:39
> #15 0x7ffff6f0ae09 in __libc_start_main ../csu/libc-start.c:314
> #16 0x9a0be9 in _start
> (/home/marxin/Programming/gcc2/objdir/gcc/cc1+0x9a0be9)
>
> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
> I'm going to install it as it's very similar to what I installed 2 weeks ago.
Yes, this is OK - again the undefined memory is harmless because we only
copy it and never going to use it.
Thanks,
Honza
>
> Thanks,
> Martin
>
> gcc/ChangeLog:
>
> * ipa-modref.c (compute_parm_map): Clear vector.
> ---
> gcc/ipa-modref.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/gcc/ipa-modref.c b/gcc/ipa-modref.c
> index 8e6a87643ec..3a70965d156 100644
> --- a/gcc/ipa-modref.c
> +++ b/gcc/ipa-modref.c
> @@ -1654,7 +1654,7 @@ compute_parm_map (cgraph_edge *callee_edge,
> vec<modref_parm_map> *parm_map)
> : callee_edge->caller);
> callee_pi = IPA_NODE_REF (callee);
> - (*parm_map).safe_grow (count);
> + (*parm_map).safe_grow_cleared (count);
> for (i = 0; i < count; i++)
> {
> --
> 2.28.0
>
