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72062f5744
This patch adds support for AArch64 (ARM's 64-bit architecture) to
LLVM in the "experimental" category. Currently, it won't be built
unless requested explicitly.
This initial commit should have support for:
+ Assembly of all scalar (i.e. non-NEON, non-Crypto) instructions
(except the late addition CRC instructions).
+ CodeGen features required for C++03 and C99.
+ Compilation for the "small" memory model: code+static data <
4GB.
+ Absolute and position-independent code.
+ GNU-style (i.e. "__thread") TLS.
+ Debugging information.
The principal omission, currently, is performance tuning.
This patch excludes the NEON support also reviewed due to an outbreak of
batshit insanity in our legal department. That will be committed soon bringing
the changes to precisely what has been approved.
Further reviews would be gratefully received.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174054 91177308-0d34-0410-b5e6-96231b3b80d8
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========================================================
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Architecture & Platform Information for Compiler Writers
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========================================================
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.. contents::
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:local:
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.. note::
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This document is a work-in-progress. Additions and clarifications are
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welcome.
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Compiled by `Misha Brukman <http://misha.brukman.net>`_.
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Hardware
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========
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ARM
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---
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* `ARM documentation <http://www.arm.com/documentation/>`_ (`Processor Cores <http://www.arm.com/documentation/ARMProcessor_Cores/>`_ Cores)
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* `ABI <http://www.arm.com/products/DevTools/ABI.html>`_
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AArch64
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-------
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* `ARMv8 Instruction Set Overview <http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.genc010197a/index.html>`_
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Itanium (ia64)
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--------------
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* `Itanium documentation <http://developer.intel.com/design/itanium2/documentation.htm>`_
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MIPS
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----
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* `MIPS Processor Architecture <http://mips.com/content/Documentation/MIPSDocumentation/ProcessorArchitecture/doclibrary>`_
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PowerPC
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-------
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IBM - Official manuals and docs
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* `PowerPC Architecture Book <http://www-106.ibm.com/developerworks/eserver/articles/archguide.html>`_
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* Book I: `PowerPC User Instruction Set Architecture <http://www-106.ibm.com/developerworks/eserver/pdfs/archpub1.pdf>`_
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* Book II: `PowerPC Virtual Environment Architecture <http://www-106.ibm.com/developerworks/eserver/pdfs/archpub2.pdf>`_
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* Book III: `PowerPC Operating Environment Architecture <http://www-106.ibm.com/developerworks/eserver/pdfs/archpub3.pdf>`_
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* `PowerPC Compiler Writer's Guide <http://www-3.ibm.com/chips/techlib/techlib.nsf/techdocs/852569B20050FF7785256996007558C6>`_
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* `PowerPC Processor Manuals <http://www-3.ibm.com/chips/techlib/techlib.nsf/products/PowerPC>`_
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* `Intro to PowerPC Architecture <http://www-106.ibm.com/developerworks/linux/library/l-powarch/>`_
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* `IBM AIX/5L for POWER Assembly Reference <http://publibn.boulder.ibm.com/doc_link/en_US/a_doc_lib/aixassem/alangref/alangreftfrm.htm>`_
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Other documents, collections, notes
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* `PowerPC ABI documents <http://penguinppc.org/dev/#library>`_
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* `PowerPC64 alignment of long doubles (from GCC) <http://gcc.gnu.org/ml/gcc-patches/2003-09/msg00997.html>`_
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* `Long branch stubs for powerpc64-linux (from binutils) <http://sources.redhat.com/ml/binutils/2002-04/msg00573.html>`_
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SPARC
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-----
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* `SPARC resources <http://www.sparc.org/resource.htm>`_
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* `SPARC standards <http://www.sparc.org/standards.html>`_
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X86
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---
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AMD - Official manuals and docs
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* `AMD processor manuals <http://www.amd.com/us-en/Processors/TechnicalResources/0,,30_182_739,00.html>`_
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* `X86-64 ABI <http://www.x86-64.org/documentation>`_
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Intel - Official manuals and docs
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* `Intel 64 and IA-32 manuals <http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html>`_
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* `Intel Itanium documentation <http://www.intel.com/design/itanium/documentation.htm?iid=ipp_srvr_proc_itanium2+techdocs>`_
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Other x86-specific information
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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* `Calling conventions for different C++ compilers and operating systems <http://www.agner.org/optimize/calling_conventions.pdf>`_
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Other relevant lists
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--------------------
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* `GCC reading list <http://gcc.gnu.org/readings.html>`_
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ABI
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===
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Linux
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-----
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* `PowerPC 64-bit ELF ABI Supplement <http://www.linuxbase.org/spec/ELF/ppc64/>`_
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* `Procedure Call Standard for the AArch64 Architecture <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055a/IHI0055A_aapcs64.pdf>`_
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* `ELF for the ARM 64-bit Architecture (AArch64) <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0056a/IHI0056A_aaelf64.pdf>`_
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OS X
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----
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* `Mach-O Runtime Architecture <http://developer.apple.com/documentation/Darwin/RuntimeArchitecture-date.html>`_
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* `Notes on Mach-O ABI <http://www.unsanity.org/archives/000044.php>`_
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Miscellaneous Resources
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=======================
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* `Executable File Format library <http://www.nondot.org/sabre/os/articles/ExecutableFileFormats/>`_
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* `GCC prefetch project <http://gcc.gnu.org/projects/prefetch.html>`_ page has a
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good survey of the prefetching capabilities of a variety of modern
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processors.
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