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[Optimizations] Improve fast GCC even further

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This commit is contained in:
Antoine Viallon 2022-10-09 01:29:44 +02:00
parent 2ac7d4e239
commit 805124cee7
Signed by: aviallon
GPG key ID: 186FC35EDEB25716
1 changed files with 40 additions and 28 deletions
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68
optimizations.nix
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@ -5,35 +5,42 @@ let
desktopCfg = config.aviallon.desktop;
generalCfg = config.aviallon.general;
_optimizeAttrs = { lto ? false , go ? false, ... }@attrs:
traceValSeq (
(myLib.optimizations.makeOptimizationFlags ({
inherit lto go;
cpuArch = generalCfg.cpuArch;
cpuTune = generalCfg.cpuTune;
extraCFlags = cfg.extraCompileFlags;
} // attrs))
// {
preConfigure = ''
cmakeFlagsArray+=(
"-DCMAKE_CXX_FLAGS=$CXXFLAGS"
"-DCMAKE_C_FLAGS=$CFLAGS"
)
'';
}
// (optionalAttrs go {
buildInputs = [ pkgs.gccgo ];
})
_optimizeAttrs =
{
lto ? false ,
go ? false ,
cmake ? true ,
cpuArch ? generalCfg.cpuArch ,
cpuTune ? generalCfg.cpuTune ,
extraCFlags ? cfg.extraCompileFlags ,
...
}@attrs:
traceValSeq (
(myLib.optimizations.makeOptimizationFlags ({
inherit lto go cpuArch cpuTune extraCFlags;
} // attrs))
// (optionalAttrs cmake {
preConfigure = ''
cmakeFlagsArray+=(
"-DCMAKE_CXX_FLAGS=$CXXFLAGS"
"-DCMAKE_C_FLAGS=$CFLAGS"
)
'';
})
// (optionalAttrs go {
nativeBuildInputs = [ pkgs.gccgo ];
}
)
);
addAttrs = pkg: attrs: pkg.overrideAttrs (old: traceValSeqN 2 (myLib.attrsets.mergeAttrsRecursive old attrs) );
optimizePkg = {level ? "normal", ... }@attrs: pkg:
optimizePkg = {level ? "normal", useAttrs ? false , ... }@attrs: pkg:
let
optimizedAttrs = _optimizeAttrs (attrs // {inherit level; go = (hasAttr "GOARCH" pkg); });
optStdenv = pkgs.addAttrsToDerivation optimizedAttrs pkgs.fastStdenv;
in (
if (hasAttr "stdenv" pkg.override.__functionArgs) then
if (!useAttrs) && (hasAttr "stdenv" pkg.override.__functionArgs) then
trace "Optimized ${getName pkg} with stdenv at level '${level}'" pkg.override {
stdenv = optStdenv;
}
@ -65,14 +72,19 @@ in
(self: super: {
fastStdenv = super.overrideCC super.gccStdenv (super.buildPackages.gcc_latest.overrideAttrs (old:
let
ccAttrs = cc: cc.overrideAttrs (oldAttrs: {
configureFlags = (oldAttrs.configureFlags or []) ++ [ "--with-cpu-64=${generalCfg.cpuArch}" "--with-arch-64=${generalCfg.cpuTune}" ];
});
ccOverrides = cc: cc.override {
reproducibleBuild = false;
};
optimizedAttrs = {}
#// _optimizeAttrs { level = "general"; cpuArch = null; cpuTune = null; }
// {
configureFlags = [
"--with-cpu-64=${generalCfg.cpuArch}" "--with-arch-64=${generalCfg.cpuArch}"
"--with-tune-64=${generalCfg.cpuTune}"
"--with-build-config=bootstrap-lto-lean"
];
}
;
ccWithProfiling = old.cc.overrideAttrs (_: { buildFlags = [ "profiledbootstrap" ]; } );
in {
cc = ccOverrides (ccAttrs old.cc);
cc = addAttrs ccWithProfiling optimizedAttrs;
}
));
})