[Bug debug/92444] gcc generates wrong debug information at -O2 and -O3

[qrzhang at gatech dot edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92444

Qirun Zhang <qrzhang at gatech dot edu> changed:

           What    |Removed                     |Added
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                 CC|                            |hubicka at gcc dot gnu.org

--- Comment #1 from Qirun Zhang <qrzhang at gatech dot edu> ---
Bisect points to r277424.

commit 096bdef978db42b89b3c173f61c8c102cd6bf470
Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu Oct 24 22:19:09 2019 +0000

        * cgraphunit.c (symbol_table::process_new_functions): Call
        ipa_free_size_summary.
        * ipa-cp.c (ipcp_cloning_candidate_p): Update.
        (devirtualization_time_bonus): Update.
        (ipcp_propagate_stage): Update.
        * ipa-fnsummary.c (ipa_size_summaries): New.
        (ipa_fn_summary_alloc): Alloc size summary.
        (dump_ipa_call_summary): Update.
        (ipa_dump_fn_summary): Update.
        (analyze_function_body): Update.
        (compute_fn_summary): Likewise.
        (ipa_get_stack_frame_offset): New function.
        (inline_update_callee_summaries): Do not update frame offsets.
        (ipa_merge_fn_summary_after_inlining): Update frame offsets here;
        remove call and function summary.
        (ipa_update_overall_fn_summary): Update.
        (inline_read_section): Update.
        (ipa_fn_summary_write): Update.
        (ipa_free_fn_summary): Do not remove summaries.
        (ipa_free_size_summary): New.
        (release summary pass): Also run at WPA.
        * ipa-fnsummary.h (ipa_size_summary): Declare.
        (ipa_fn_summary): Remove size, self_size, stack_frame_offset,
        estimated_self_stack_size.
        (ipa_size_summary_t): New type.
        (ipa_size_summaries): Declare.
        (ipa_free_size_summary): Declare.
        (ipa_get_stack_frame_offset): Declare.
        * ipa-icf.c (sem_function::merge): Update.
        * ipa-inline-analysis.c (estimate_size_after_inlining): Update.
        (estimate_growth): Update.
        (growth_likely_positive): Update.
        (clone_inlined_nodes): Update.
        (inline_call): Update.
        * ipa-inline.c (caller_growth_limits): Update.

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