From 64582189b3fc6a65f6dc2e5205da3b6ff71beb93 Mon Sep 17 00:00:00 2001 From: Weining Lu Date: Tue, 17 Jan 2023 20:53:58 +0800 Subject: [PATCH] [docs] Add llvm & clang release notes for LoongArch Reviewed By: rengolin Differential Revision: https://reviews.llvm.org/D141750 --- clang/docs/ReleaseNotes.rst | 13 +++++++++++++ llvm/docs/ReleaseNotes.rst | 19 +++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/clang/docs/ReleaseNotes.rst b/clang/docs/ReleaseNotes.rst index de038fe..6315e2b 100644 --- a/clang/docs/ReleaseNotes.rst +++ b/clang/docs/ReleaseNotes.rst @@ -802,6 +802,19 @@ CUDA Support in Clang - Clang now supports CUDA SDK up to 11.8 - Added support for targeting sm_{87,89,90} GPUs. +LoongArch Support in Clang +-------------------------- +- Clang now supports LoongArch. Along with the backend, clang is able to build a + large corpus of Linux applications. Test-suite 100% pass. +- Support basic option ``-march=`` which is used to select the target + architecture, i.e. the basic set of ISA modules to be enabled. Possible values + are ``loongarch64`` and ``la464``. +- Support basic option ``-mabi=`` which is used to select the base ABI type. + Possible values are ``lp64d``, ``lp64f``, ``lp64s``, ``ilp32d``, ``ilp32f`` + and ``ilp32s``. +- Support extended options: ``-msoft-float``, ``-msingle-float``, ``-mdouble-float`` and ``mfpu=``. + See `LoongArch toolchain conventions `_. + RISC-V Support in Clang ----------------------- - ``sifive-7-rv32`` and ``sifive-7-rv64`` are no longer supported for ``-mcpu``. diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index 36de570..71f445c 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -47,6 +47,8 @@ Non-comprehensive list of changes in this release is not a constant in coroutines. This decision may cause unnecessary performance regressions and we plan to fix it in later versions. +* The LoongArch target is promoted to "official" (see below for more details). + * ... Update on required toolchains to build LLVM @@ -154,6 +156,19 @@ Changes to the Hexagon Backend * ... +Changes to the LoongArch Backend +-------------------------------- + +* The LoongArch target is no longer "experimental"! It's now built by default, + rather than needing to be enabled with ``LLVM_EXPERIMENTAL_TARGETS_TO_BUILD``. + +* The backend has full codegen support for the base (both integer and + floating-point) instruction set and it conforms to psABI v2. Testing has been + performed with Linux, including native compilation of a large corpus of Linux + applications. + +* Support GHC calling convention. + Changes to the MIPS Backend --------------------------- @@ -279,9 +294,13 @@ Changes to the LLVM tools Changes to LLDB --------------------------------- +* Initial support for debugging Linux LoongArch 64-bit binaries. + Changes to Sanitizers --------------------- +* Many Sanitizers (asan, fuzzer, lsan, safestack, scudo, tsan, ubsan) have + support for Linux LoongArch 64-bit variant. Some of them may be rudimentary. Other Changes ------------- -- 2.7.4