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455 changes: 0 additions & 455 deletions clang-tools-extra/docs/ReleaseNotes.rst

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1,283 changes: 0 additions & 1,283 deletions clang/docs/ReleaseNotes.rst

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2 changes: 1 addition & 1 deletion libcxx/include/__config
Original file line number Diff line number Diff line change
Expand Up @@ -62,7 +62,7 @@
// _LIBCPP_VERSION represents the version of libc++, which matches the version of LLVM.
// Given a LLVM release LLVM XX.YY.ZZ (e.g. LLVM 17.0.1 == 17.00.01), _LIBCPP_VERSION is
// defined to XXYYZZ.
# define _LIBCPP_VERSION 180000
# define _LIBCPP_VERSION 190000

# define _LIBCPP_CONCAT_IMPL(_X, _Y) _X##_Y
# define _LIBCPP_CONCAT(_X, _Y) _LIBCPP_CONCAT_IMPL(_X, _Y)
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13 changes: 0 additions & 13 deletions lld/docs/ReleaseNotes.rst
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Expand Up @@ -26,21 +26,12 @@ Non-comprehensive list of changes in this release
ELF Improvements
----------------

* ``--fat-lto-objects`` option is added to support LLVM FatLTO.
Without ``--fat-lto-objects``, LLD will link LLVM FatLTO objects using the
relocatable object file. (`D146778 <https://reviews.llvm.org/D146778>`_)
* common-page-size can now be larger than the system page-size.
(`#57618 <https://github.com/llvm/llvm-project/issues/57618>`_)

Breaking changes
----------------

COFF Improvements
-----------------

* Added support for ``--time-trace`` and associated ``--time-trace-granularity``.
This generates a .json profile trace of the linker execution.

MinGW Improvements
------------------

Expand All @@ -50,9 +41,5 @@ MachO Improvements
WebAssembly Improvements
------------------------

* Indexes are no longer required on archive files. Instead symbol information
is read from object files within the archive. This matches the behaviour of
the ELF linker.

Fixes
#####
2 changes: 1 addition & 1 deletion llvm/CMakeLists.txt
Original file line number Diff line number Diff line change
Expand Up @@ -16,7 +16,7 @@ if(NOT LLVM_NO_INSTALL_NAME_DIR_FOR_BUILD_TREE)
endif()

if(NOT DEFINED LLVM_VERSION_MAJOR)
set(LLVM_VERSION_MAJOR 18)
set(LLVM_VERSION_MAJOR 19)
endif()
if(NOT DEFINED LLVM_VERSION_MINOR)
set(LLVM_VERSION_MINOR 0)
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252 changes: 1 addition & 251 deletions llvm/docs/ReleaseNotes.rst
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Expand Up @@ -50,79 +50,27 @@ Update on required toolchains to build LLVM
Changes to the LLVM IR
----------------------

* The `llvm.stacksave` and `llvm.stackrestore` intrinsics now use
an overloaded pointer type to support non-0 address spaces.
* The constant expression variants of the following instructions have been
removed:

* ``and``
* ``or``
* ``lshr``
* ``ashr``
* ``zext``
* ``sext``
* ``fptrunc``
* ``fpext``
* ``fptoui``
* ``fptosi``
* ``uitofp``
* ``sitofp``

* Added `llvm.exp10` intrinsic.

* Added a ``code_model`` attribute for the `global variable <LangRef.html#global-variables>`_.

Changes to LLVM infrastructure
------------------------------

* Minimum Clang version to build LLVM in C++20 configuration has been updated to clang-17.0.6.

Changes to building LLVM
------------------------

Changes to TableGen
-------------------

* Added constructs for debugging TableGen files:

* `dump` keyword to dump messages to standard error, see
https://github.com/llvm/llvm-project/pull/68793.
* `!repr` bang operator to inspect the content of values, see
https://github.com/llvm/llvm-project/pull/68716.

Changes to Interprocedural Optimizations
----------------------------------------

Changes to the AArch64 Backend
------------------------------

* Added support for Cortex-A520, Cortex-A720 and Cortex-X4 CPUs.

* Neoverse-N2 was incorrectly marked as an Armv8.5a core. This has been
changed to an Armv9.0a core. However, crypto options are not enabled
by default for Armv9 cores, so `-mcpu=neoverse-n2+crypto` is now required
to enable crypto for this core. As far as the compiler is concerned,
Armv9.0a has the same features enabled as Armv8.5a, with the exception
of crypto.

Changes to the AMDGPU Backend
-----------------------------

* `llvm.sqrt.f32` is now lowered correctly. Use `llvm.amdgcn.sqrt.f32`
for raw instruction access.

* Implemented `llvm.stacksave` and `llvm.stackrestore` intrinsics.

* Implemented :ref:`llvm.get.rounding <int_get_rounding>`

* The default :ref:`AMDHSA code object version <amdgpu-amdhsa-code-object-metadata-v5>` is now 5.

Changes to the ARM Backend
--------------------------

* Added support for Cortex-M52 CPUs.
* Added execute-only support for Armv6-M.

Changes to the AVR Backend
--------------------------

Expand All @@ -135,21 +83,6 @@ Changes to the Hexagon Backend
Changes to the LoongArch Backend
--------------------------------

* 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
---------------------------

Expand All @@ -159,229 +92,46 @@ Changes to the PowerPC Backend
Changes to the RISC-V Backend
-----------------------------

* The Zfa extension version was upgraded to 1.0 and is no longer experimental.
* Zihintntl extension version was upgraded to 1.0 and is no longer experimental.
* Intrinsics were added for Zk*, Zbb, and Zbc. See https://github.com/riscv-non-isa/riscv-c-api-doc/blob/master/riscv-c-api.md#scalar-bit-manipulation-extension-intrinsics
* Default ABI with F but without D was changed to ilp32f for RV32 and to lp64f for RV64.
* The Zvbb, Zvbc, Zvkb, Zvkg, Zvkn, Zvknc, Zvkned, Zvkng, Zvknha, Zvknhb, Zvks,
Zvksc, Zvksed, Zvksg, Zvksh, and Zvkt extension version was upgraded to 1.0
and is no longer experimental. However, the C intrinsics for these extensions
are still experimental. To use the C intrinsics for these extensions,
``-menable-experimental-extensions`` needs to be passed to Clang.
* XSfcie extension and SiFive CSRs and instructions that were associated with
it have been removed. None of these CSRs and instructions were part of
"SiFive Custom Instruction Extension" as SiFive defines it. The LLVM project
needs to work with SiFive to define and document real extension names for
individual CSRs and instructions.
* ``-mcpu=sifive-p450`` was added.
* CodeGen of RV32E/RV64E was supported experimentally.
* CodeGen of ilp32e/lp64e was supported experimentally.
* Support was added for the Ziccif, Ziccrse, Ziccamoa, Zicclsm, Za64rs, Za128rs
and Zic64b extensions which were introduced as a part of the RISC-V Profiles
specification.
* The Smepmp 1.0 extension is now supported.
* ``-mcpu=sifive-p670`` was added.

Changes to the WebAssembly Backend
----------------------------------

Changes to the Windows Target
-----------------------------

* The LLVM filesystem class ``UniqueID`` and function ``equivalent()``
no longer determine that distinct different path names for the same
hard linked file actually are equal. This is an intentional tradeoff in a
bug fix, where the bug used to cause distinct files to be considered
equivalent on some file systems. This change fixed the issues
https://github.com/llvm/llvm-project/issues/61401 and
https://github.com/llvm/llvm-project/issues/22079.

Changes to the X86 Backend
--------------------------

* The ``i128`` type now matches GCC and clang's ``__int128`` type. This mainly
benefits external projects such as Rust which aim to be binary compatible
with C, but also fixes code generation where LLVM already assumed that the
type matched and called into libgcc helper functions.
* Support ISA of ``USER_MSR``.
* Support ISA of ``AVX10.1-256`` and ``AVX10.1-512``.
* ``-mcpu=pantherlake`` and ``-mcpu=clearwaterforest`` are now supported.
* ``-mapxf`` is supported.
* Marking global variables with ``code_model = "small"/"large"`` in the IR now
overrides the global code model to allow 32-bit relocations or require 64-bit
relocations to the global variable.
* The medium code model's code generation was audited to be more similar to the
small code model where possible.

Changes to the OCaml bindings
-----------------------------

Changes to the Python bindings
------------------------------

* The python bindings have been removed.


Changes to the C API
--------------------

* Added ``LLVMGetTailCallKind`` and ``LLVMSetTailCallKind`` to
allow getting and setting ``tail``, ``musttail``, and ``notail``
attributes on call instructions.
* The following functions for creating constant expressions have been removed,
because the underlying constant expressions are no longer supported. Instead,
an instruction should be created using the ``LLVMBuildXYZ`` APIs, which will
constant fold the operands if possible and create an instruction otherwise:

* ``LLVMConstAnd``
* ``LLVMConstOr``
* ``LLVMConstLShr``
* ``LLVMConstAShr``
* ``LLVMConstZExt``
* ``LLVMConstSExt``
* ``LLVMConstZExtOrBitCast``
* ``LLVMConstSExtOrBitCast``
* ``LLVMConstIntCast``
* ``LLVMConstFPTrunc``
* ``LLVMConstFPExt``
* ``LLVMConstFPToUI``
* ``LLVMConstFPToSI``
* ``LLVMConstUIToFP``
* ``LLVMConstSIToFP``
* ``LLVMConstFPCast``

* Added ``LLVMCreateTargetMachineWithOptions``, along with helper functions for
an opaque option structure, as an alternative to ``LLVMCreateTargetMachine``.
The option structure exposes an additional setting (i.e., the target ABI) and
provides default values for unspecified settings.

* Added ``LLVMGetNNeg`` and ``LLVMSetNNeg`` for getting/setting the new nneg flag
on zext instructions, and ``LLVMGetIsDisjoint`` and ``LLVMSetIsDisjoint``
for getting/setting the new disjoint flag on or instructions.

* Added the following functions for manipulating operand bundles, as well as
building ``call`` and ``invoke`` instructions that use operand bundles:

* ``LLVMBuildCallWithOperandBundles``
* ``LLVMBuildInvokeWithOperandBundles``
* ``LLVMCreateOperandBundle``
* ``LLVMDisposeOperandBundle``
* ``LLVMGetNumOperandBundles``
* ``LLVMGetOperandBundleAtIndex``
* ``LLVMGetNumOperandBundleArgs``
* ``LLVMGetOperandBundleArgAtIndex``
* ``LLVMGetOperandBundleTag``

* Added ``LLVMGetFastMathFlags`` and ``LLVMSetFastMathFlags`` for getting/setting
the fast-math flags of an instruction, as well as ``LLVMCanValueUseFastMathFlags``
for checking if an instruction can use such flags

Changes to the CodeGen infrastructure
-------------------------------------

* A new debug type ``isel-dump`` is added to show only the SelectionDAG dumps
after each ISel phase (i.e. ``-debug-only=isel-dump``). This new debug type
can be filtered by function names using ``-filter-print-funcs=<function names>``,
the same flag used to filter IR dumps after each Pass. Note that the existing
``-debug-only=isel`` will take precedence over the new behavior and
print SelectionDAG dumps of every single function regardless of
``-filter-print-funcs``'s values.

* ``PrologEpilogInserter`` no longer supports register scavenging
during forwards frame index elimination. Targets should use
backwards frame index elimination instead.

* ``RegScavenger`` no longer supports forwards register
scavenging. Clients should use backwards register scavenging
instead, which is preferred because it does not depend on accurate
kill flags.

Changes to the Metadata Info
---------------------------------
* Added a new loop metadata `!{!"llvm.loop.align", i32 64}`

Changes to the Debug Info
---------------------------------

Changes to the LLVM tools
---------------------------------

* llvm-symbolizer now treats invalid input as an address for which source
information is not found.
* llvm-readelf now supports ``--extra-sym-info`` (``-X``) to display extra
information (section name) when showing symbols.

* ``llvm-nm`` now supports the ``--line-numbers`` (``-l``) option to use
debugging information to print symbols' filenames and line numbers.

* llvm-symbolizer and llvm-addr2line now support addresses specified as symbol names.

* llvm-objcopy now supports ``--gap-fill`` and ``--pad-to`` options, for
ELF input and binary output files only.

Changes to LLDB
---------------------------------

* ``SBWatchpoint::GetHardwareIndex`` is deprecated and now returns -1
to indicate the index is unavailable.
* Methods in SBHostOS related to threads have had their implementations
removed. These methods will return a value indicating failure.
* ``SBType::FindDirectNestedType`` function is added. It's useful
for formatters to quickly find directly nested type when it's known
where to search for it, avoiding more expensive global search via
``SBTarget::FindFirstType``.
* ``lldb-vscode`` was renamed to ``lldb-dap`` and and its installation
instructions have been updated to reflect this. The underlying functionality
remains unchanged.
* The ``mte_ctrl`` register can now be read from AArch64 Linux core files.
* LLDB on AArch64 Linux now supports debugging the Scalable Matrix Extension
(SME) and Scalable Matrix Extension 2 (SME2) for both live processes and core
files. For details refer to the
`AArch64 Linux documentation <https://lldb.llvm.org/use/aarch64-linux.html>`_.
* LLDB now supports symbol and binary acquisition automatically using the
DEBUFINFOD protocol. The standard mechanism of specifying DEBUFINOD servers in
the ``DEBUGINFOD_URLS`` environment variable is used by default. In addition,
users can specify servers to request symbols from using the LLDB setting
``plugin.symbol-locator.debuginfod.server_urls``, override or adding to the
environment variable.


* When running on AArch64 Linux, ``lldb-server`` now provides register
field information for the following registers: ``cpsr``, ``fpcr``,
``fpsr``, ``svcr`` and ``mte_ctrl``. ::

(lldb) register read cpsr
cpsr = 0x80001000
= (N = 1, Z = 0, C = 0, V = 0, SS = 0, IL = 0, <...>

This is only available when ``lldb`` is built with XML support.
Where possible the CPU's capabilities are used to decide which
fields are present, however this is not always possible or entirely
accurate. If in doubt, refer to the numerical value.

Changes to Sanitizers
---------------------
* HWASan now defaults to detecting use-after-scope bugs.

Other Changes
-------------

* The ``Flags`` field of ``llvm::opt::Option`` has been split into ``Flags``
and ``Visibility`` to simplify option sharing between various drivers (such
as ``clang``, ``clang-cl``, or ``flang``) that rely on Clang's Options.td.
Overloads of ``llvm::opt::OptTable`` that use ``FlagsToInclude`` have been
deprecated. There is a script and instructions on how to resolve conflicts -
see https://reviews.llvm.org/D157150 and https://reviews.llvm.org/D157151 for
details.

* On Linux, FreeBSD, and NetBSD, setting the environment variable
``LLVM_ENABLE_SYMBOLIZER_MARKUP`` causes tools to print stacktraces using
:doc:`Symbolizer Markup <SymbolizerMarkupFormat>`.
This works even if the tools have no embedded symbol information (i.e. are
fully stripped); :doc:`llvm-symbolizer <CommandGuide/llvm-symbolizer>` can
symbolize the markup afterwards using ``debuginfod``.

External Open Source Projects Using LLVM 15
External Open Source Projects Using LLVM 19
===========================================

* A project...
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2 changes: 1 addition & 1 deletion llvm/utils/gn/secondary/llvm/version.gni
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@@ -1,4 +1,4 @@
llvm_version_major = 18
llvm_version_major = 19
llvm_version_minor = 0
llvm_version_patch = 0
llvm_version = "$llvm_version_major.$llvm_version_minor.$llvm_version_patch"
2 changes: 1 addition & 1 deletion llvm/utils/lit/lit/__init__.py
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Expand Up @@ -2,7 +2,7 @@

__author__ = "Daniel Dunbar"
__email__ = "daniel@minormatter.com"
__versioninfo__ = (18, 0, 0)
__versioninfo__ = (19, 0, 0)
__version__ = ".".join(str(v) for v in __versioninfo__) + "dev"

__all__ = []
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