3a73418106
A compilation strategy designed to enable effective program optimization across the entire lifetime of a program. LLVM supports effective optimization at compile time, link-time (particularly interprocedural), run-time and offline (i.e., after software is installed), while remaining transparent to developers and maintaining compatibility with existing build scripts. A virtual instruction set - LLVM is a low-level object code representation that uses simple RISC-like instructions, but provides rich, language-independent, type information and dataflow (SSA) information about operands. This combination enables sophisticated transformations on object code, while remaining light-weight enough to be attached to the executable. This combination is key to allowing link-time, run-time, and offline transformations. A compiler infrastructure - LLVM is also a collection of source code that implements the language and compilation strategy. The primary components of the LLVM infrastructure are a GCC-based C & C++ front-end, a link-time optimization framework with a growing set of global and interprocedural analyses and transformations, static back-ends for the X86, X86-64, PowerPC 32/64, ARM, Thumb, IA-64, Alpha and SPARC architectures, a back-end which emits portable C code, and a Just-In-Time compiler for X86, X86-64, PowerPC 32/64 processors. LLVM does not imply things that you would expect from a high-level virtual machine. It does not require garbage collection or run-time code generation (In fact, LLVM makes a great static compiler!). Note that optional LLVM components can be used to build high-level virtual machines and other systems that need these services.
19 lines
541 B
Makefile
19 lines
541 B
Makefile
# $NetBSD: buildlink3.mk,v 1.1.1.1 2008/01/18 16:27:13 hoka_adam Exp $
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BUILDLINK_DEPTH:= ${BUILDLINK_DEPTH}+
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LLVM_BUILDLINK3_MK:= ${LLVM_BUILDLINK3_MK}+
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.if ${BUILDLINK_DEPTH} == "+"
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BUILDLINK_DEPENDS+= llvm
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.endif
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BUILDLINK_PACKAGES:= ${BUILDLINK_PACKAGES:Nllvm}
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BUILDLINK_PACKAGES+= llvm
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BUILDLINK_ORDER:= ${BUILDLINK_ORDER} ${BUILDLINK_DEPTH}llvm
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.if ${LLVM_BUILDLINK3_MK} == "+"
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BUILDLINK_API_DEPENDS.llvm+= llvm>=2.1
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BUILDLINK_PKGSRCDIR.llvm?= ../../wip/llvm
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.endif # LLVM_BUILDLINK3_MK
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BUILDLINK_DEPTH:= ${BUILDLINK_DEPTH:S/+$//}
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