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From: "xry111 at mengyan1223 dot wang" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug lto/97787] [10/11 regression] 64bit mips lto: .symtab local
 symbol at index x (>= sh_info of y)
Date: Mon, 25 Jan 2021 11:05:48 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D97787

--- Comment #24 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
(In reply to Richard Biener from comment #22)
> There is target specific sanitizing of symbol names - if the name is real=
ly
> the issue then it should be _much_ more prevalent since all IPA cloning u=
ses
> dots as well.  clone_function_name produces them and ASM_FORMAT_PRIVATE_N=
AME
> is the "sanitizer" that's supposed to mangle it to correct form.  But as =
the
> name suggests the definition of a local private symbol isn't supposed to =
go
> away without all of its uses so the real issue must be elsewhere in
> optimization.
> (thus asking for IPA dumps, specifically the .000i.cgraph dump which shou=
ld
> mention when the compiler thinks the .LTHUNK5.lto_priv.0 goes away)

IPA dumps (along with .ltrans* files) are uploaded:
https://bf.mengyan1223.wang/assets/gcc-97787/libsass_lto_ipa_dump.tar.xz=