Author: Lu Weining Date: 2024-01-23T15:27:06+08:00 New Revision: 9e2c0f000549991ea5585d6799ade92811a8faae
URL: https://github.com/llvm/llvm-project/commit/9e2c0f000549991ea5585d6799ade92811a8faae DIFF: https://github.com/llvm/llvm-project/commit/9e2c0f000549991ea5585d6799ade92811a8faae.diff LOG: [docs] Add llvm & clang release notes for LoongArch (#79097) Added: Modified: clang/docs/ReleaseNotes.rst llvm/docs/ReleaseNotes.rst Removed: ################################################################################ diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index cb15dfb99bec977..93eecbe0e1363de 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -1189,8 +1189,14 @@ Windows Support LoongArch Support ^^^^^^^^^^^^^^^^^ -- The ``model`` attribute is now supported for overriding the default code - model used to access global variables. The following values are supported: +- Added builtins support for all LSX (128-bits SIMD) and LASX (256-bits SIMD) + instructions. +- Added builtins support for approximate calculation instructions that were + introduced in LoongArch Reference Manual V1.10. +- Made ``-mcmodel=`` compatible with LoongArch gcc that accepted ``normal``, + ``medium`` and ``extreme``. +- The ``model`` attribute was now supported for overriding the default code + model used to access global variables. The following values were supported: ``normal``, ``medium`` and ``extreme``. *Example Code*: @@ -1199,6 +1205,10 @@ LoongArch Support int var __attribute((model("extreme"))); +- Default to ``-fno-direct-access-external-data`` for non-PIC. +- An ABI mismatch with gcc/g++ about empty structs/unions passing was fixed. +- ``_mcount`` was generated instead of ``mcount``. + RISC-V Support ^^^^^^^^^^^^^^ - Unaligned memory accesses can be toggled by ``-m[no-]unaligned-access`` or the diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index c17c834c8081b8a..8d75b6415e557b8 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -132,8 +132,21 @@ Changes to the Hexagon Backend Changes to the LoongArch Backend -------------------------------- -* The code model of global variables can now be overridden by means of - the newly added LLVM IR attribute, ``code_model``. + +* Added intrinsics support for all LSX (128-bits SIMD) and LASX (256-bits SIMD) + instructions. +* Added definition and intrinsics support for new instructions that were + introduced in LoongArch Reference Manual V1.10. +* Emitted adjacent ``pcaddu18i+jirl`` instrunction sequence with one relocation + ``R_LARCH_CALL36`` instead of ``pcalau12i+jirl`` with two relocations + ``R_LARCH_PCALA_{HI20,LO12}`` for function call in medium code model. +* The code model of global variables can now be overridden by means of the newly + added LLVM IR attribute, ``code_model``. +* Added support for the ``llvm.is.fpclass`` intrinsic. +* ``mulodi4`` and ``muloti4`` libcalls were disabled due to absence in libgcc. +* Added initial support for auto vectorization. +* Added initial support for linker relaxation. +* Assorted codegen improvements. Changes to the MIPS Backend --------------------------- _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits