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SLPVectorizer: Only vectorize intrinsics whose operands are widened equally

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The vectorizer only knows how to vectorize intrinics by widening all operands by
the same factor.

Patch by Tyler Nowicki!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@205855 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Arnold Schwaighofer
2014-04-09 14:20:47 +00:00
parent 0d5d656524
commit b0ee2374ce
4 changed files with 100 additions and 26 deletions
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54
include/llvm/Transforms/Utils/VectorUtils.h Normal file
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//===- llvm/Transforms/Utils/VectorUtils.h - Vector utilities -*- C++ -*-=====//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines some vectorizer utilities.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_UTILS_VECTORUTILS_H
#define LLVM_TRANSFORMS_UTILS_VECTORUTILS_H
namespace llvm {
/// \brief Identify if the intrinsic is trivially vectorizable.
///
/// This method returns true if the intrinsic's argument types are all
/// scalars for the scalar form of the intrinsic and all vectors for
/// the vector form of the intrinsic.
static inline bool isTriviallyVectorizable(Intrinsic::ID ID) {
switch (ID) {
case Intrinsic::sqrt:
case Intrinsic::sin:
case Intrinsic::cos:
case Intrinsic::exp:
case Intrinsic::exp2:
case Intrinsic::log:
case Intrinsic::log10:
case Intrinsic::log2:
case Intrinsic::fabs:
case Intrinsic::copysign:
case Intrinsic::floor:
case Intrinsic::ceil:
case Intrinsic::trunc:
case Intrinsic::rint:
case Intrinsic::nearbyint:
case Intrinsic::round:
case Intrinsic::ctpop:
case Intrinsic::pow:
case Intrinsic::fma:
case Intrinsic::fmuladd:
return true;
default:
return false;
}
}
} // llvm namespace
#endif