Anyone have any sugestions for COMMON_FLAGS (for clang)?

jeffjeff · n00b Joined: 13 May 2025 Posts: 1

I tried a lot of flags and the only one that gave me more performance was fwhole-program-vtables.
Things like nosingedzeros gave me worse performance. Atleast when it came to the apps I tested.

Currently I have:

COMMON_FLAGS="-O3 -march=raptorlake -mtune=raptorlake -flto -pipe -fwhole-program-vtables "

CC="clang"

CPP="clang-cpp" # necessary for xorg-server and possibly other packages

CXX="clang++"

AR="llvm-ar"

NM="llvm-nm"

RANLIB="llvm-ranlib"

LDFLAGS="-fuse-ld=lld -Wl,--as-needed"

CFLAGS="${COMMON_FLAGS}"

CXXFLAGS="${COMMON_FLAGS}"

FCFLAGS="${COMMON_FLAGS}"

FFLAGS="${COMMON_FLAGS}"

[Administrator note: Moved from Documentation, Tips & Tricks, because this post is not itself documentation, a tip, or a trick. It is a request for guidance. -Hu]