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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
//===------- LeonPasses.h - Define passes specific to LEON ----------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIB_TARGET_SPARC_LEON_PASSES_H
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#define LLVM_LIB_TARGET_SPARC_LEON_PASSES_H
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#include "llvm/CodeGen/MachineBasicBlock.h"
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#include "llvm/CodeGen/MachineFunctionPass.h"
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#include "llvm/CodeGen/Passes.h"
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#include "Sparc.h"
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#include "SparcSubtarget.h"
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namespace llvm {
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class LLVM_LIBRARY_VISIBILITY LEONMachineFunctionPass
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: public MachineFunctionPass {
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protected:
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const SparcSubtarget *Subtarget;
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const int LAST_OPERAND = -1;
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// this vector holds free registers that we allocate in groups for some of the
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// LEON passes
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std::vector<int> UsedRegisters;
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protected:
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LEONMachineFunctionPass(char &ID);
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int GetRegIndexForOperand(MachineInstr &MI, int OperandIndex);
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void clearUsedRegisterList() { UsedRegisters.clear(); }
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void markRegisterUsed(int registerIndex) {
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UsedRegisters.push_back(registerIndex);
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}
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int getUnusedFPRegister(MachineRegisterInfo &MRI);
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};
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class LLVM_LIBRARY_VISIBILITY InsertNOPLoad : public LEONMachineFunctionPass {
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public:
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static char ID;
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InsertNOPLoad();
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bool runOnMachineFunction(MachineFunction &MF) override;
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StringRef getPassName() const override {
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return "InsertNOPLoad: Erratum Fix LBR35: insert a NOP instruction after "
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"every single-cycle load instruction when the next instruction is "
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"another load/store instruction";
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}
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};
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class LLVM_LIBRARY_VISIBILITY DetectRoundChange
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: public LEONMachineFunctionPass {
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public:
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static char ID;
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DetectRoundChange();
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bool runOnMachineFunction(MachineFunction &MF) override;
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StringRef getPassName() const override {
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return "DetectRoundChange: Leon erratum detection: detect any rounding "
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"mode change request: use only the round-to-nearest rounding mode";
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}
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};
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class LLVM_LIBRARY_VISIBILITY FixAllFDIVSQRT : public LEONMachineFunctionPass {
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public:
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static char ID;
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FixAllFDIVSQRT();
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bool runOnMachineFunction(MachineFunction &MF) override;
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StringRef getPassName() const override {
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return "FixAllFDIVSQRT: Erratum Fix LBR34: fix FDIVS/FDIVD/FSQRTS/FSQRTD "
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"instructions with NOPs and floating-point store";
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}
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};
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} // namespace llvm
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#endif // LLVM_LIB_TARGET_SPARC_LEON_PASSES_H
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