forked from OSchip/llvm-project
45 lines
1.6 KiB
C++
45 lines
1.6 KiB
C++
//===- lib/CodeGen/GlobalISel/LegalizerMutations.cpp - Mutations ----------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// A library of mutation factories to use for LegalityMutation.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/CodeGen/GlobalISel/LegalizerInfo.h"
|
|
|
|
using namespace llvm;
|
|
|
|
LegalizeMutation LegalizeMutations::changeTo(unsigned TypeIdx, LLT Ty) {
|
|
return
|
|
[=](const LegalityQuery &Query) { return std::make_pair(TypeIdx, Ty); };
|
|
}
|
|
|
|
LegalizeMutation LegalizeMutations::widenScalarToNextPow2(unsigned TypeIdx,
|
|
unsigned Min) {
|
|
return [=](const LegalityQuery &Query) {
|
|
unsigned NewSizeInBits =
|
|
1 << Log2_32_Ceil(Query.Types[TypeIdx].getSizeInBits());
|
|
if (NewSizeInBits < Min)
|
|
NewSizeInBits = Min;
|
|
return std::make_pair(TypeIdx, LLT::scalar(NewSizeInBits));
|
|
};
|
|
}
|
|
|
|
LegalizeMutation LegalizeMutations::moreElementsToNextPow2(unsigned TypeIdx,
|
|
unsigned Min) {
|
|
return [=](const LegalityQuery &Query) {
|
|
const LLT &VecTy = Query.Types[TypeIdx];
|
|
unsigned NewNumElements = 1 << Log2_32_Ceil(VecTy.getNumElements());
|
|
if (NewNumElements < Min)
|
|
NewNumElements = Min;
|
|
return std::make_pair(
|
|
TypeIdx, LLT::vector(NewNumElements, VecTy.getScalarSizeInBits()));
|
|
};
|
|
}
|