llvm-project/llvm/lib/Target/AArch64/AArch64MachineLegalizer.cpp
Tim Northover 33b07d6725 GlobalISel: implement legalization pass, with just one transformation.
This adds the actual MachineLegalizeHelper to do the work and a trivial pass
wrapper that legalizes all instructions in a MachineFunction. Currently the
only transformation supported is splitting up a vector G_ADD into one acting on
smaller vectors.

llvm-svn: 276461
2016-07-22 20:03:43 +00:00

31 lines
972 B
C++

//===- AArch64MachineLegalizer.cpp -------------------------------*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
/// \file
/// This file implements the targeting of the Machinelegalizer class for
/// AArch64.
/// \todo This should be generated by TableGen.
//===----------------------------------------------------------------------===//
#include "AArch64MachineLegalizer.h"
#include "llvm/CodeGen/ValueTypes.h"
#include "llvm/IR/Type.h"
#include "llvm/IR/DerivedTypes.h"
#include "llvm/Target/TargetOpcodes.h"
using namespace llvm;
#ifndef LLVM_BUILD_GLOBAL_ISEL
#error "You shouldn't build this"
#endif
AArch64MachineLegalizer::AArch64MachineLegalizer() {
setAction(TargetOpcode::G_ADD, LLT::vector(2, 64), Legal);
computeTables();
}