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Imported Upstream version 5.18.0.167

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Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a
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Xamarin Public Jenkins (auto-signing)
2018-10-20 08:25:10 +00:00
parent e19d552987
commit b084638f15
28489 changed files with 184 additions and 3866856 deletions
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79
external/llvm/lib/Target/Nios2/Nios2ISelDAGToDAG.cpp vendored
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//===-- Nios2ISelDAGToDAG.cpp - A Dag to Dag Inst Selector for Nios2 ------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines an instruction selector for the NIOS2 target.
//
//===----------------------------------------------------------------------===//
#include "Nios2.h"
#include "Nios2TargetMachine.h"
#include "llvm/CodeGen/SelectionDAGISel.h"
#include "llvm/Support/Debug.h"
using namespace llvm;
#define DEBUG_TYPE "nios2-isel"
//===----------------------------------------------------------------------===//
// Instruction Selector Implementation
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Nios2DAGToDAGISel - NIOS2 specific code to select NIOS2 machine
// instructions for SelectionDAG operations.
//===----------------------------------------------------------------------===//
namespace {
class Nios2DAGToDAGISel : public SelectionDAGISel {
/// Subtarget - Keep a pointer to the Nios2 Subtarget around so that we can
/// make the right decision when generating code for different targets.
const Nios2Subtarget *Subtarget;
public:
explicit Nios2DAGToDAGISel(Nios2TargetMachine &TM, CodeGenOpt::Level OL)
: SelectionDAGISel(TM, OL) {}
bool runOnMachineFunction(MachineFunction &MF) override {
Subtarget = &MF.getSubtarget<Nios2Subtarget>();
return SelectionDAGISel::runOnMachineFunction(MF);
}
void Select(SDNode *N) override;
// Pass Name
StringRef getPassName() const override {
return "NIOS2 DAG->DAG Pattern Instruction Selection";
}
#include "Nios2GenDAGISel.inc"
};
} // namespace
// Select instructions not customized! Used for
// expanded, promoted and normal instructions
void Nios2DAGToDAGISel::Select(SDNode *Node) {
// Dump information about the Node being selected
DEBUG(errs() << "Selecting: "; Node->dump(CurDAG); errs() << "\n");
// If we have a custom node, we already have selected!
if (Node->isMachineOpcode()) {
DEBUG(errs() << "== "; Node->dump(CurDAG); errs() << "\n");
Node->setNodeId(-1);
return;
}
// Select the default instruction
SelectCode(Node);
}
FunctionPass *llvm::createNios2ISelDag(Nios2TargetMachine &TM,
CodeGenOpt::Level OptLevel) {
return new Nios2DAGToDAGISel(TM, OptLevel);
}