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[clang][docs] Fix supported element types for __builtin_reduce_(add|mul) 

The docs mention that `__builtin_reduce_add` and `__builtin_reduce_mul` support
both integer and floating point element types, but only integer element types
are actually supported. See https://github.com/llvm/llvm-project/issues/57847,
and specifically,
00874c48ea/clang/lib/Sema/SemaChecking.cpp (L2631) for the fact that floating point element types are not supported yet.

Fix the docs to only mention support for integer element types.
This commit is contained in:
Joe Loser 2022-09-20 15:15:26 -06:00
parent 94ebd7d9ff
commit cf77333da9
1 changed files with 2 additions and 2 deletions
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4
clang/docs/LanguageExtensions.rst
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@ -648,8 +648,8 @@ Let ``VT`` be a vector type and ``ET`` the element type of ``VT``.
ET __builtin_reduce_min(VT a) return x or y, whichever is smaller; If exactly one argument integer and floating point types
is a NaN, return the other argument. If both arguments are
NaNs, fmax() return a NaN.
ET __builtin_reduce_add(VT a) \+ integer and floating point types
ET __builtin_reduce_mul(VT a) \* integer and floating point types
ET __builtin_reduce_add(VT a) \+ integer types
ET __builtin_reduce_mul(VT a) \* integer types
ET __builtin_reduce_and(VT a) & integer types
ET __builtin_reduce_or(VT a) \| integer types
ET __builtin_reduce_xor(VT a) ^ integer types