[PATCH] D117829: [Clang] Add integer add/mul reduction builtins

[Simon Pilgrim via Phabricator via cfe-commits]

RKSimon created this revision.
RKSimon added reviewers: fhahn, scanon, aaron.ballman, craig.topper.
RKSimon requested review of this revision.
Herald added a project: clang.

Similar to the existing bitwise reduction builtins, these are lowered to the llvm.vector.reduce.add/mul intrinsic calls.

For other reductions, we've tried to share builtins for float/integer vectors, but the fadd/fmul reduction builtins also take a starting value argument. Technically I could support float by using default values, but we're probably better off with specific fadd/fmul reduction builtins for both arguments.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117829

Files:
  clang/include/clang/Basic/Builtins.def
  clang/lib/CodeGen/CGBuiltin.cpp
  clang/lib/Sema/SemaChecking.cpp
  clang/test/CodeGen/builtins-reduction-math.c
  clang/test/Sema/builtins-reduction-math.c

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