574dd70006
The compiler now has a native codegen on aarch64. LLVM backend is now optional, and is disabled by default. The full release note is too long to paste here. See: https://downloads.haskell.org/~ghc/9.2.1/docs/html/users_guide/9.2.1-notes.html
65 lines
2.7 KiB
Makefile
65 lines
2.7 KiB
Makefile
# $NetBSD: options.mk,v 1.1 2022/02/06 05:36:15 pho Exp $
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PKG_OPTIONS_VAR= PKG_OPTIONS.ghc
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.include "../../mk/bsd.prefs.mk"
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# GHC has a native implementation of codegen (NCG) for some platforms. On
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# those platforms LLVM is optional. It's a requirement anywhere else. See
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# compiler/GHC/Driver/Backend.hs
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#
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# The LLVM backend tends to produce slightly faster code than what NCG
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# produces, but it is much slower than NCG. It is therefore not the default
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# backend on platforms where NCG is available. On platforms where NCG is
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# available, LLVM should be disabled by default because it's a huge
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# dependency that takes hours to compile.
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#
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# Note that bootkits also require LLVM/Clang on platforms lacking NCG. This
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# can cause a transitional problem when a new compiler arrives with NCG for
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# a platform which used to lack one. In this case we have to either (1)
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# build a new bootkit for the platform with LLVM backend disabled, or (2)
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# reuse the old bootkit by putting llvm/clang in BUILD_DEPENDS (regardless
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# of user choice) and arrange parameters so that they are used only by the
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# stage-0 compiler. We don't have an infrastructure for (2), as it's not
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# worth the additional complexity, so (1) is the only option atm.
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GHC_NCG_SUPPORTED= aarch64 i386 x86_64 powerpc powerpc64 sparc
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.if !empty(GHC_NCG_SUPPORTED:M${MACHINE_ARCH})
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PKG_SUPPORTED_OPTIONS+= llvm
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GHC_LLVM_REQUIRED= no
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.else
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GHC_LLVM_REQUIRED= yes
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.endif
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.if !empty(PKG_SUPPORTED_OPTIONS)
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. include "../../mk/bsd.options.mk"
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.endif
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.if !empty(PKG_OPTIONS:Mllvm) || ${GHC_LLVM_REQUIRED} == "yes"
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DEPENDS+= llvm-[0-9]*:../../lang/llvm
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CONFIGURE_ARGS.common+= LLC=${PREFIX:Q}/bin/llc
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CONFIGURE_ARGS.common+= OPT=${PREFIX:Q}/bin/opt
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# When we use the LLVM backend, we *have* to use Clang's integrated
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# assembler because llc emits assembly source files incompatible with
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# Binutils < 2.36 (see https://reviews.llvm.org/D97448). It also requires
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# Clang on Darwin (see runClang in compiler/GHC/SysTools/Tasks.hs).
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DEPENDS+= clang-[0-9]*:../../lang/clang
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CONFIGURE_ARGS.common+= CLANG=${PREFIX:Q}/bin/clang
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CONFIGURE_ARGS.common+= CC=${PREFIX:Q}/bin/clang
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# Maybe GHC doesn't like this but it's the only option available to us.
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LLVM_VERSION_CMD= ${PKG_INFO} -E llvm | ${SED} -E 's/^llvm-([0-9]*)\..*/\1/'
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LLVM_MAX_VERSION_CMD= ${EXPR} ${LLVM_VERSION_CMD:sh} + 1
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SUBST_CLASSES+= llvm
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SUBST_STAGE.llvm= post-extract
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SUBST_MESSAGE.llvm= Modifying configure.ac to accept whichever version of LLVM installed via pkgsrc
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SUBST_FILES.llvm= configure.ac
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SUBST_SED.llvm= -e 's/LlvmMaxVersion=[0-9]*/LlvmMaxVersion=${LLVM_MAX_VERSION_CMD:sh}/'
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.else
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CONFIGURE_ARGS.common+= LLC=${FALSE:Q}
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CONFIGURE_ARGS.common+= OPT=${FALSE:Q}
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CONFIGURE_ARGS.common+= CLANG=${FALSE:Q}
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CONFIGURE_ARGS.common+= CC=${CC:Q}
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.endif
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