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Code Issues Releases Activity

Vendor import of llvm release_80 branch r356034:

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https://llvm.org/svn/llvm-project/llvm/branches/release_80@356034
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Dimitry Andric 2019-03-14 19:41:10 +00:00
parent 0e2b9676e0
commit 24eadf6f46
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/vendor/llvm/dist-release_80/; revision=345142
svn path=/vendor/llvm/llvm-release_800-r356365/; revision=345335; tag=vendor/llvm/llvm-release_800-r356365
1 changed files with 36 additions and 0 deletions
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docs/ReleaseNotes.rst
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@ -95,6 +95,22 @@ Changes to the LLVM IR
<SpeculativeLoadHardening.html>`_ must be enabled for the function body.
Changes to the JIT APIs
-----------------------
The ORC (On Request Compilation) JIT APIs have been updated to support
concurrent compilation. The existing (non-concurrent) ORC layer classes and
related APIs are deprecated, have been renamed with a "Legacy" prefix (e.g.
LegacyIRCompileLayer). The deprecated clasess will be removed in LLVM 9.
An example JIT stack using the concurrent ORC APIs, called LLJIT, has been
added (see include/llvm/ExecutionEngine/Orc/LLJIT.h). The lli tool has been
updated to use LLJIT.
MCJIT and ExecutionEngine continue to be supported, though ORC should be
preferred for new projects.
Changes to the AArch64 Target
-----------------------------
@ -173,6 +189,26 @@ Changes to the PowerPC Target
* Enabled llvm-exegesis latency mode for PPC
Changes to the SystemZ Target
-----------------------------
* A number of bugs related to C/C++ language vector extension support were
fixed: the ``-mzvector`` option now actually enables the ``__vector`` and
``__bool`` keywords, the ``vec_step`` intrinsic now works, and the
``vec_insert_and_zero`` and ``vec_orc`` intrinsics now generate correct code.
* The ``__float128`` keyword, which had been accidentally enabled in some
earlier releases, is now no longer supported. On SystemZ, the ``long double``
data type itself already uses the IEEE 128-bit floating-point format.
* When the compiler inlines ``strcmp`` or ``memcmp``, the generated code no
longer returns ``INT_MIN`` as the negative result value under any
circumstances.
* Various code-gen improvements, in particular related to improved
auto-vectorization, inlining, and instruction scheduling.
Changes to the X86 Target
-------------------------