gentoo-make.conf-lv3

# General speed optimization
SPEED="-pipe -flto -Ofast"
GRAPHITE="-floop-interchange -ftree-loop-distribution -floop-strip-mine -floop-nest-optimize -fgraphite-identity" 

# Dumps information on optimization passes
INFO_FLAGS="-fopt-info-note=note.all -fsave-optimization-record -time=time.all"

# CPU Specific
M1_FLAGS="-march=armv8.5-a+aes+crc+crypto+dotprod+flagm+fp+fp16+pauth+sb+sha2+sha3+simd+ssbs"
ARM64_FLAGS="-mtune=native -mabi=lp64 -mlittle-endian -fPIC -mno-track-speculation"
ARM_FLAGS="-fomit-frame-pointer -funroll-loops -fearly-inlining -fira-region=one -fsched2-use-traces -ffast-math -frename-registers -fno-signed-zeros -fno-trapping-math"

# Defining shared flags
ALL_FLAGS="${M1_FLAGS} ${SPEED} ${GRAPHITE} ${ARM64_FLAGS} ${ARM_FLAGS} ${INFO_FLAGS}"
# Setting compilers
CFLAGS="${ALL_FLAGS}"
CXXFLAGS="${ALL_FLAGS}"
FCFLAGS="${ALL_FLAGS}"
FFLAGS="${ALL_FLAGS}"

RUST_COMMON="-C target-cpu=native -C opt-level=3"
RUST_LTO_FLAGS="-Clinker-plugin-lto -Clinker=clang -Clink-arg=-fuse-ld=lld
RUSTFLAGS="${RUST_COMMON} ${RUST_LTO_FLAGS}"
CARGO_CACHE_RUSTC_INFO=0

# Portage scheduling policy: extremely low priority
### Linux kernel will apply to emerge itself and all the build jobs while system idle
PORTAGE_SCHEDULING_POLICY="idle"
EMERGE_DEFAULT_OPTS="-j"
GENTOO_MIRRORS="https://mirrors.mit.edu/gentoo-distfiles/ http://www.gtlib.gatech.edu/pub/gentoo"
FEATURES="keepwork"
USE="lto" 


# WARNING: Changing your CHOST is not something that should be done lightly.
# Please consult https://wiki.gentoo.org/wiki/Changing_the_CHOST_variable before changing.
#CHOST="aarch64-gentoo-linux"

# CPU flags for M1 mac
#CPU_FLAGS_ARM="

# This sets the language of build output to English.
# Please keep this setting intact when reporting bugs.
LC_MESSAGES=C.utf8