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[ReleaseNotes] Add release notes for Hexagon git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_70@339717 91177308-0d34-0410-b5e6-96231b3b80d8 Krzysztof Parzyszek 2 years ago
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171171 deduce the instruction size, without having to specify it with
172172 e.g. ``.inst.w`` as before.
174 Changes to the Hexagon Target
175 -----------------------------
177 * Hexagon now supports auto-vectorization for HVX. It is disabled by default
178 and can be turned on with ``-fvectorize``. For auto-vectorization to take
179 effect, code genration for HVX needs to be enabled with ``-mhvx``.
180 The complete set of options should include ``-fvectorize``, ``-mhvx``,
181 and ``-mhvx-length={64b|128b}``.
183 * The support for Hexagon ISA V4 is deprecated and will be removed in the
184 next release.
174186 Changes to the MIPS Target
175187 --------------------------