[AIX] Add mabi=vec-extabi options to enable the AIX extended and default vector ABIs.
Added support for the options mabi=vec-extabi and mabi=vec-default which are analogous to qvecnvol and qnovecnvol when using XL on AIX.
The extended Altivec ABI on AIX is enabled using mabi=vec-extabi in clang and vec-extabi in llc.
Reviewed By: Xiangling_L, DiggerLin
Differential Revision: https://reviews.llvm.org/D89684
diff --git a/clang/docs/ClangCommandLineReference.rst b/clang/docs/ClangCommandLineReference.rst
index 830d3ae..3674f3a 100644
--- a/clang/docs/ClangCommandLineReference.rst
+++ b/clang/docs/ClangCommandLineReference.rst
@@ -2885,6 +2885,10 @@
.. option:: -municode<arg>
+.. option:: -mabi=vec-extabi, -mabi=vec-default
+
+Only supported on AIX. Specify usage of the extended vector ABI on AIX and of non-volatile vector registers. Defaults to '-mabi=default' when Altivec is enabled.
+
.. option:: -mvx, -mno-vx
.. option:: -mwarn-nonportable-cfstrings, -mno-warn-nonportable-cfstrings