-ABI and ABI extensions
-^^^^^^^^^^^^^^^^^^^^^^
-
-There has also been considerable ABI work since the 3.4 release. This release
-adds support for the N32 ABI, the O32-FPXX ABI Extension, the O32-FP64 ABI
-Extension, and the O32-FP64A ABI Extension.
-
-The N32 ABI is an existing ABI that has now been implemented in LLVM. It is a
-64-bit ABI that is similar to N64 but retains 32-bit pointers. N64 remains the
-default 64-bit ABI in LLVM. This differs from GCC where N32 is the default
-64-bit ABI.
-
-The O32-FPXX ABI Extension is 100% compatible with the O32-ABI and the O32-FP64
-ABI Extension and may be linked with either but may not be linked with both of
-these simultaneously. It extends the O32 ABI to allow the same code to execute
-without modification on processors with 32-bit FPU registers as well as 64-bit
-FPU registers. The O32-FPXX ABI Extension is enabled by default for the O32 ABI
-on mips*-img-linux-gnu and mips*-mti-linux-gnu triples and is selected with
--mfpxx. It is expected that future releases of LLVM will enable the FPXX
-Extension for O32 on all triples.
-
-The O32-FP64 ABI Extension is an extension to the O32 ABI to fully exploit FPU's
-with 64-bit registers and is enabled with -mfp64. This replaces an undocumented
-and unsupported O32 extension which was previously enabled with -mfp64. It is
-100% compatible with the O32-FPXX ABI Extension.
-
-The O32-FP64A ABI Extension is a restricted form of the O32-FP64 ABI Extension
-which allows interlinking with unmodified binaries that use the base O32 ABI.
-
-Integrated Assembler
-^^^^^^^^^^^^^^^^^^^^
-
-The MIPS Integrated Assembler has undergone a substantial overhaul including a
-rewrite of the assembly parser. It's not ready for general use in this release
-but adventurous users may wish to enable it using ``-fintegrated-as``.
-
-In this release, the integrated assembler supports the majority of MIPS-I,
-MIPS-II, MIPS-III, MIPS-IV, MIPS-V, MIPS32, MIPS32r2, MIPS32r6, MIPS64,
-MIPS64r2, and MIPS64r6 as well as some of the Application Specific Extensions
-such as MSA. It also supports several of the MIPS specific assembler directives
-such as ``.set``, ``.module``, ``.cpload``, etc.