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//===- lib/CodeGen/GlobalISel/LegalizerPredicates.cpp - Predicates --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// A library of predicate factories to use for LegalityPredicate.
//
//===----------------------------------------------------------------------===//
// Enable optimizations to work around MSVC debug mode bug in 32-bit:
// https://developercommunity.visualstudio.com/content/problem/1179643/msvc-copies-overaligned-non-trivially-copyable-par.html
// FIXME: Remove this when the issue is closed.
#if defined(_MSC_VER) && !defined(__clang__) && defined(_M_IX86)
// We have to disable runtime checks in order to enable optimizations. This is
// done for the entire file because the problem is actually observed in STL
// template functions.
#pragma runtime_checks("", off)
#pragma optimize("gs", on)
#endif
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
using namespace llvm;
LegalityPredicate LegalityPredicates::typeIs(unsigned TypeIdx, LLT Type) {
return
[=](const LegalityQuery &Query) { return Query.Types[TypeIdx] == Type; };
}
LegalityPredicate
LegalityPredicates::typeInSet(unsigned TypeIdx,
std::initializer_list<LLT> TypesInit) {
SmallVector<LLT, 4> Types = TypesInit;
return [=](const LegalityQuery &Query) {
return llvm::is_contained(Types, Query.Types[TypeIdx]);
};
}
LegalityPredicate LegalityPredicates::typePairInSet(
unsigned TypeIdx0, unsigned TypeIdx1,
std::initializer_list<std::pair<LLT, LLT>> TypesInit) {
SmallVector<std::pair<LLT, LLT>, 4> Types = TypesInit;
return [=](const LegalityQuery &Query) {
std::pair<LLT, LLT> Match = {Query.Types[TypeIdx0], Query.Types[TypeIdx1]};
return llvm::is_contained(Types, Match);
};
}
LegalityPredicate LegalityPredicates::typePairAndMemDescInSet(
unsigned TypeIdx0, unsigned TypeIdx1, unsigned MMOIdx,
std::initializer_list<TypePairAndMemDesc> TypesAndMemDescInit) {
SmallVector<TypePairAndMemDesc, 4> TypesAndMemDesc = TypesAndMemDescInit;
return [=](const LegalityQuery &Query) {
TypePairAndMemDesc Match = {Query.Types[TypeIdx0], Query.Types[TypeIdx1],
Query.MMODescrs[MMOIdx].MemoryTy,
Query.MMODescrs[MMOIdx].AlignInBits};
return llvm::any_of(TypesAndMemDesc,
[=](const TypePairAndMemDesc &Entry) -> bool {
return Match.isCompatible(Entry);
});
};
}
LegalityPredicate LegalityPredicates::isScalar(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx].isScalar();
};
}
LegalityPredicate LegalityPredicates::isVector(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx].isVector();
};
}
LegalityPredicate LegalityPredicates::isPointer(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx].isPointer();
};
}
LegalityPredicate LegalityPredicates::isPointer(unsigned TypeIdx,
unsigned AddrSpace) {
return [=](const LegalityQuery &Query) {
LLT Ty = Query.Types[TypeIdx];
return Ty.isPointer() && Ty.getAddressSpace() == AddrSpace;
};
}
LegalityPredicate LegalityPredicates::elementTypeIs(unsigned TypeIdx,
LLT EltTy) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isVector() && QueryTy.getElementType() == EltTy;
};
}
LegalityPredicate LegalityPredicates::scalarNarrowerThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && QueryTy.getSizeInBits() < Size;
};
}
LegalityPredicate LegalityPredicates::scalarWiderThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && QueryTy.getSizeInBits() > Size;
};
}
LegalityPredicate LegalityPredicates::smallerThan(unsigned TypeIdx0,
unsigned TypeIdx1) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx0].getSizeInBits() <
Query.Types[TypeIdx1].getSizeInBits();
};
}
LegalityPredicate LegalityPredicates::largerThan(unsigned TypeIdx0,
unsigned TypeIdx1) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx0].getSizeInBits() >
Query.Types[TypeIdx1].getSizeInBits();
};
}
LegalityPredicate LegalityPredicates::scalarOrEltNarrowerThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.getScalarSizeInBits() < Size;
};
}
LegalityPredicate LegalityPredicates::scalarOrEltWiderThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.getScalarSizeInBits() > Size;
};
}
LegalityPredicate LegalityPredicates::scalarOrEltSizeNotPow2(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return !isPowerOf2_32(QueryTy.getScalarSizeInBits());
};
}
LegalityPredicate LegalityPredicates::sizeNotMultipleOf(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && QueryTy.getSizeInBits() % Size != 0;
};
}
LegalityPredicate LegalityPredicates::sizeNotPow2(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && !isPowerOf2_32(QueryTy.getSizeInBits());
};
}
LegalityPredicate LegalityPredicates::sizeIs(unsigned TypeIdx, unsigned Size) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx].getSizeInBits() == Size;
};
}
LegalityPredicate LegalityPredicates::sameSize(unsigned TypeIdx0,
unsigned TypeIdx1) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx0].getSizeInBits() ==
Query.Types[TypeIdx1].getSizeInBits();
};
}
LegalityPredicate LegalityPredicates::memSizeInBytesNotPow2(unsigned MMOIdx) {
return [=](const LegalityQuery &Query) {
return !isPowerOf2_32(Query.MMODescrs[MMOIdx].MemoryTy.getSizeInBytes());
};
}
LegalityPredicate LegalityPredicates::numElementsNotPow2(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
const LLT QueryTy = Query.Types[TypeIdx];
return QueryTy.isVector() && !isPowerOf2_32(QueryTy.getNumElements());
};
}
LegalityPredicate LegalityPredicates::atomicOrderingAtLeastOrStrongerThan(
unsigned MMOIdx, AtomicOrdering Ordering) {
return [=](const LegalityQuery &Query) {
return isAtLeastOrStrongerThan(Query.MMODescrs[MMOIdx].Ordering, Ordering);
};
}
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