mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-12-25 15:13:46 +00:00
9c213398b3
Second attempt of 8929989614589ee3acd070a6409b2b9700c92d65; see that
commit for details.
This reverts commit 0bc275e634.
108 lines
5.2 KiB
Nix
108 lines
5.2 KiB
Nix
{ lib }:
|
|
|
|
rec {
|
|
# gcc.arch to its features (as in /proc/cpuinfo)
|
|
features = {
|
|
default = [ ];
|
|
# x86_64 Intel
|
|
westmere = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" ];
|
|
sandybridge = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ];
|
|
ivybridge = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ];
|
|
haswell = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ];
|
|
broadwell = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ];
|
|
skylake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "fma" ];
|
|
skylake-avx512 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
cannonlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
icelake-client = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
icelake-server = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
cascadelake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
cooperlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
tigerlake = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" "avx2" "avx512" "fma" ];
|
|
# x86_64 AMD
|
|
btver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" ];
|
|
btver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "aes" "avx" ];
|
|
bdver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ];
|
|
bdver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ];
|
|
bdver3 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "fma" "fma4" ];
|
|
bdver4 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" "fma4" ];
|
|
znver1 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ];
|
|
znver2 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ];
|
|
znver3 = [ "sse3" "ssse3" "sse4_1" "sse4_2" "sse4a" "aes" "avx" "avx2" "fma" ];
|
|
# other
|
|
armv5te = [ ];
|
|
armv6 = [ ];
|
|
armv7-a = [ ];
|
|
armv8-a = [ ];
|
|
mips32 = [ ];
|
|
loongson2f = [ ];
|
|
};
|
|
|
|
# a superior CPU has all the features of an inferior and is able to build and test code for it
|
|
inferiors = {
|
|
# x86_64 Intel
|
|
default = [ ];
|
|
westmere = [ ];
|
|
sandybridge = [ "westmere" ] ++ inferiors.westmere;
|
|
ivybridge = [ "sandybridge" ] ++ inferiors.sandybridge;
|
|
haswell = [ "ivybridge" ] ++ inferiors.ivybridge;
|
|
broadwell = [ "haswell" ] ++ inferiors.haswell;
|
|
skylake = [ "broadwell" ] ++ inferiors.broadwell;
|
|
skylake-avx512 = [ "skylake" ] ++ inferiors.skylake;
|
|
|
|
# x86_64 AMD
|
|
# TODO: fill this (need testing)
|
|
btver1 = [ ];
|
|
btver2 = [ ];
|
|
bdver1 = [ ];
|
|
bdver2 = [ ];
|
|
bdver3 = [ ];
|
|
bdver4 = [ ];
|
|
# Regarding `skylake` as inferior of `znver1`, there are reports of
|
|
# successful usage by Gentoo users and Phoronix benchmarking of different
|
|
# `-march` targets.
|
|
#
|
|
# The GCC documentation on extensions used and wikichip documentation
|
|
# regarding supperted extensions on znver1 and skylake was used to create
|
|
# this partial order.
|
|
#
|
|
# Note:
|
|
#
|
|
# - The succesors of `skylake` (`cannonlake`, `icelake`, etc) use `avx512`
|
|
# which no current AMD Zen michroarch support.
|
|
# - `znver1` uses `ABM`, `CLZERO`, `CX16`, `MWAITX`, and `SSE4A` which no
|
|
# current Intel microarch support.
|
|
#
|
|
# https://www.phoronix.com/scan.php?page=article&item=amd-znver3-gcc11&num=1
|
|
# https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
|
|
# https://en.wikichip.org/wiki/amd/microarchitectures/zen
|
|
# https://en.wikichip.org/wiki/intel/microarchitectures/skylake
|
|
znver1 = [ "skylake" ] ++ inferiors.skylake;
|
|
znver2 = [ "znver1" ] ++ inferiors.znver1;
|
|
znver3 = [ "znver2" ] ++ inferiors.znver2;
|
|
|
|
# other
|
|
armv5te = [ ];
|
|
armv6 = [ ];
|
|
armv7-a = [ ];
|
|
armv8-a = [ ];
|
|
mips32 = [ ];
|
|
loongson2f = [ ];
|
|
};
|
|
|
|
predicates = let
|
|
featureSupport = feature: x: builtins.elem feature features.${x} or [];
|
|
in {
|
|
sse3Support = featureSupport "sse3";
|
|
ssse3Support = featureSupport "ssse3";
|
|
sse4_1Support = featureSupport "sse4_1";
|
|
sse4_2Support = featureSupport "sse4_2";
|
|
sse4_aSupport = featureSupport "sse4a";
|
|
avxSupport = featureSupport "avx";
|
|
avx2Support = featureSupport "avx2";
|
|
avx512Support = featureSupport "avx512";
|
|
aesSupport = featureSupport "aes";
|
|
fmaSupport = featureSupport "fma";
|
|
fma4Support = featureSupport "fma4";
|
|
};
|
|
}
|