Bug 926058

Summary:	flag-o-matic.eclass: filter-lto should filter -fvirtual-function-elimination
Product:	Gentoo Linux	Reporter:	Blacktea Hamburger <blackteahamburger>
Component:	Eclasses	Assignee:	Gentoo Toolchain Maintainers <toolchain>
Status:	UNCONFIRMED ---
Severity:	normal	CC:	blackteahamburger, eschwartz93
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=926784
Whiteboard:
Package list:		Runtime testing required:	---

Description Blacktea Hamburger 2024-03-03 01:22:35 UTC

-fwhole-program-vtables requires -flto, -fvirtual-function-elimination requires -flto=full. If they are not filtered with filter-lto, clang will report errors:

x86_64-pc-linux-gnu-clang: error: invalid argument '-fvirtual-function-elimination' only allowed with '-flto=full'
x86_64-pc-linux-gnu-clang: error: invalid argument '-fwhole-program-vtables' only allowed with '-flto'

Reproducible: Always

Comment 1 Blacktea Hamburger 2024-03-10 01:00:40 UTC

(In reply to Blacktea Hamburger from comment #0)
> -fwhole-program-vtables requires -flto, -fvirtual-function-elimination
> requires -flto=full. If they are not filtered with filter-lto, clang will
> report errors:
> 
> x86_64-pc-linux-gnu-clang: error: invalid argument
> '-fvirtual-function-elimination' only allowed with '-flto=full'
> x86_64-pc-linux-gnu-clang: error: invalid argument '-fwhole-program-vtables'
> only allowed with '-flto'
> 
> Reproducible: Always

-fwhole-program-vtables can already be filtered by filter-lto.