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add generic x86_32 support (#52634)

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* add generic x86_32 support

- Add support for i386-i586.
- Add `isx86_32` predicate that can replace most uses of `isi686`.
- `isi686` is reinterpreted to mean "exactly i686 arch, and not say i585 or i386".
- This branch was used to build working i586 kernel running on i586 hardware.

* revert `isi[345]86`, remove dead code

- Remove changes to dead code in `doubles.nix` and `for-meta.nix`.
- Remove `isi[345]86` predicates since other cpu families don't have specific model predicates.

* remove i386-linux since linux not supported on that cpu
This commit is contained in:
Daniel Goertzen
2019-01-06 12:57:36 -06:00
committed by Matthew Bauer
parent a4250d1478
commit 1c10efc912
11 changed files with 15 additions and 10 deletions
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pkgs/development/compilers/llvm/7/llvm.nix
+1 -1
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@@ -134,7 +134,7 @@ in stdenv.mkDerivation (rec {
ln -s $lib/lib/libLLVM.dylib $lib/lib/libLLVM-${release_version}.dylib
'';
doCheck = stdenv.isLinux && (!stdenv.isi686);
doCheck = stdenv.isLinux && (!stdenv.isx86_32);
checkTarget = "check-all";