Re: [PATCH] [IPA] Apply computed profile scaling

On Thu, Aug 20, 2026 at 1:57 AM Kugan Vivekanandarajah <
[email protected]> wrote:

> cgraph_node::scale_profile_to computed an adjusted scale but never
> applied it, leaving callgraph edges stale after IPA-CP clone
> redistribution and causing edge/BB count verification failures.
>
> The stale counts triggered this ICE during AutoFDO LTO compilation:
>
>   internal compiler error: verify_cgraph_node failed
>   #0  internal_error(char const*, ...)
>       .../gcc/diagnostic-global-context.cc:787
>   #1  cgraph_node::verify_node()
>       .../gcc/cgraph.cc:4510
>   #2  symtab_node::verify()
>       .../gcc/symtab.cc:1377
>   #3  optimize_inline_calls(tree_node*)
>       .../gcc/tree-inline.cc:5679
>   #4  inline_transform(cgraph_node*)
>       .../gcc/ipa-inline-transform.cc:871
>   #5  execute_one_ipa_transform_pass
>       .../gcc/passes.cc:2327
>   #6  execute_all_ipa_transforms(bool)
>       .../gcc/passes.cc:2390
>   #7  cgraph_node::expand()
>       .../gcc/cgraphunit.cc:1867
>   #8  cgraph_node::expand()
>       .../gcc/cgraphunit.cc:1827
>   #9  expand_all_functions
>       .../gcc/cgraphunit.cc:2057
>   #10 symbol_table::compile()
>       .../gcc/cgraphunit.cc:2435
>   #11 lto_main()
>       .../gcc/lto/lto.cc:718
>
> gcc/ChangeLog:
>
>         * cgraph.cc (cgraph_node::scale_profile_to): Apply the computed
> scale.
>
OK.
thanks

Honza

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