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//===- lib/CodeGen/GlobalISel/LegalizerPredicates.cpp - Predicates --------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// A library of predicate factories to use for LegalityPredicate.
//
//===----------------------------------------------------------------------===//
#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 std::find(Types.begin(), Types.end(), Query.Types[TypeIdx]) != Types.end();
};
}
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 std::find(Types.begin(), Types.end(), Match) != Types.end();
};
}
LegalityPredicate LegalityPredicates::typePairAndMemSizeInSet(
unsigned TypeIdx0, unsigned TypeIdx1, unsigned MMOIdx,
std::initializer_list<TypePairAndMemSize> TypesAndMemSizeInit) {
SmallVector<TypePairAndMemSize, 4> TypesAndMemSize = TypesAndMemSizeInit;
return [=](const LegalityQuery &Query) {
TypePairAndMemSize Match = {Query.Types[TypeIdx0], Query.Types[TypeIdx1],
Query.MMODescrs[MMOIdx].Size};
return std::find(TypesAndMemSize.begin(), TypesAndMemSize.end(), Match) !=
TypesAndMemSize.end();
};
}
LegalityPredicate LegalityPredicates::isScalar(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
return Query.Types[TypeIdx].isScalar();
};
}
LegalityPredicate LegalityPredicates::narrowerThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT &QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && QueryTy.getSizeInBits() < Size;
};
}
LegalityPredicate LegalityPredicates::widerThan(unsigned TypeIdx,
unsigned Size) {
return [=](const LegalityQuery &Query) {
const LLT &QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && QueryTy.getSizeInBits() > Size;
};
}
LegalityPredicate LegalityPredicates::sizeNotPow2(unsigned TypeIdx) {
return [=](const LegalityQuery &Query) {
const LLT &QueryTy = Query.Types[TypeIdx];
return QueryTy.isScalar() && !isPowerOf2_32(QueryTy.getSizeInBits());
};
}
LegalityPredicate LegalityPredicates::memSizeInBytesNotPow2(unsigned MMOIdx) {
return [=](const LegalityQuery &Query) {
return !isPowerOf2_32(Query.MMODescrs[MMOIdx].Size /* In Bytes */);
};
}
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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