[docs] Add more ARM/AArch64 links to CompilerWriterInfo.rst .

Also, fix a few existing links so they don't require registration.

llvm-svn: 351403

Author: Eli Friedman

llvm/docs/CompilerWriterInfo.rst

@@ -16,16 +16,24 @@ Hardware
 AArch64 & ARM
 -------------
 
-* `ARMv8-A Architecture Reference Manual <http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0487a.h/index.html>`_ (authentication required, free sign-up). This document covers both AArch64 and ARM instructions
+* `ARMv8-A Architecture Reference Manual <https://developer.arm.com/docs/ddi0487/latest>`_ This document covers both AArch64 and ARM instructions
 
-* `ARMv7-M Architecture Reference Manual <http://infocenter.arm.com/help/topic/com.arm.doc.ddi0403e.b/index.html>`_ (authentication required, free sign-up). This covers the Thumb2-only microcontrollers
+* `ARMv7-A Architecture Reference Manual <https://developer.arm.com/docs/ddi0406/latest>`_ This has some useful info on what is supported by older architecture versions.
 
-* `ARMv6-M Architecture Reference Manual <http://infocenter.arm.com/help/topic/com.arm.doc.ddi0419c/index.html>`_ (authentication required, free sign-up). This covers the Thumb1-only microcontrollers
+* `ARMv7-M Architecture Reference Manual <https://developer.arm.com/docs/ddi0403/latest>`_ This covers the Thumb2-only microcontrollers
+
+* `ARMv6-M Architecture Reference Manual <https://developer.arm.com/docs/ddi0419/latest>`_ This covers the Thumb1-only microcontrollers
 
 * `ARM C Language Extensions <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0053c/IHI0053C_acle_2_0.pdf>`_
 
+* `ARM NEON Intrinsics Reference http://infocenter.arm.com/help/topic/com.arm.doc.ihi0073b/IHI0073B_arm_neon_intrinsics_ref.pdf>`_
+
 * AArch32 `ABI Addenda and Errata <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0045d/IHI0045D_ABI_addenda.pdf>`_
 
+* `Cortex-A57 Software Optimization Guide <http://infocenter.arm.com/help/topic/com.arm.doc.uan0015b/Cortex_A57_Software_Optimization_Guide_external.pdf>`_
+
+* `Run-time ABI for the ARM Architecture <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0043d/IHI0043D_rtabi.pdf>`_ This documents the __aeabi_* helper functions.
+
 Itanium (ia64)
 --------------
 
@@ -119,14 +127,15 @@ ABI
 ===
 
 * `System V Application Binary Interface <http://www.sco.com/developers/gabi/latest/contents.html>`_
-* `Itanium C++ ABI <http://itanium-cxx-abi.github.io/cxx-abi/>`_
+* `Itanium C++ ABI <http://itanium-cxx-abi.github.io/cxx-abi/>`_ (This is used for all non-Windows targets.)
 
 Linux
 -----
 
 * `Linux extensions to gabi <https://github.com/hjl-tools/linux-abi/wiki/Linux-Extensions-to-gABI>`_
 * `PowerPC 64-bit ELF ABI Supplement <http://www.linuxbase.org/spec/ELF/ppc64/>`_
 * `Procedure Call Standard for the AArch64 Architecture <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0055a/IHI0055A_aapcs64.pdf>`_
+* `Procedure Call Standard for the ARM Architecture <https://developer.arm.com/docs/ihi0042/latest>`_
 * `ELF for the ARM Architecture <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0044e/IHI0044E_aaelf.pdf>`_
 * `ELF for the ARM 64-bit Architecture (AArch64) <http://infocenter.arm.com/help/topic/com.arm.doc.ihi0056a/IHI0056A_aaelf64.pdf>`_
 * `System z ELF ABI Supplement <http://legacy.redhat.com/pub/redhat/linux/7.1/es/os/s390x/doc/lzsabi0.pdf>`_
@@ -136,11 +145,16 @@ OS X
 
 * `Mach-O Runtime Architecture <http://developer.apple.com/documentation/Darwin/RuntimeArchitecture-date.html>`_
 * `Notes on Mach-O ABI <http://www.unsanity.org/archives/000044.php>`_
+* `ARM64 Function Calling Conventions <https://developer.apple.com/library/archive/documentation/Xcode/Conceptual/iPhoneOSABIReference/Articles/ARM64FunctionCallingConventions.html>`_
 
 Windows
 -------
 
 * `Microsoft PE/COFF Specification <http://www.microsoft.com/whdc/system/platform/firmware/pecoff.mspx>`_
+* `ARM64 exception handling <https://docs.microsoft.com/en-us/cpp/build/arm64-exception-handling>`_
+* `ARM exception handling <https://docs.microsoft.com/en-us/cpp/build/arm-exception-handling>`_
+* `Overview of ARM64 ABI conventions <https://docs.microsoft.com/en-us/cpp/build/arm64-windows-abi-conventions>`_
+* `Overview of ARM32 ABI Conventions <https://docs.microsoft.com/en-us/cpp/build/overview-of-arm-abi-conventions>`_
 
 NVPTX
 =====