| //===------- LeonPasses.h - Define passes specific to LEON ----------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_LIB_TARGET_SPARC_LEON_PASSES_H |
| #define LLVM_LIB_TARGET_SPARC_LEON_PASSES_H |
| |
| #include "llvm/CodeGen/MachineFunctionPass.h" |
| |
| namespace llvm { |
| class SparcSubtarget; |
| |
| class LLVM_LIBRARY_VISIBILITY LEONMachineFunctionPass |
| : public MachineFunctionPass { |
| protected: |
| const SparcSubtarget *Subtarget = nullptr; |
| const int LAST_OPERAND = -1; |
| |
| // this vector holds free registers that we allocate in groups for some of the |
| // LEON passes |
| std::vector<int> UsedRegisters; |
| |
| protected: |
| LEONMachineFunctionPass(char &ID); |
| |
| void clearUsedRegisterList() { UsedRegisters.clear(); } |
| |
| void markRegisterUsed(int registerIndex) { |
| UsedRegisters.push_back(registerIndex); |
| } |
| }; |
| |
| class LLVM_LIBRARY_VISIBILITY InsertNOPLoad : public LEONMachineFunctionPass { |
| public: |
| static char ID; |
| |
| InsertNOPLoad(); |
| bool runOnMachineFunction(MachineFunction &MF) override; |
| |
| StringRef getPassName() const override { |
| return "InsertNOPLoad: Erratum Fix LBR35: insert a NOP instruction after " |
| "every single-cycle load instruction when the next instruction is " |
| "another load/store instruction"; |
| } |
| }; |
| |
| class LLVM_LIBRARY_VISIBILITY DetectRoundChange |
| : public LEONMachineFunctionPass { |
| public: |
| static char ID; |
| |
| DetectRoundChange(); |
| bool runOnMachineFunction(MachineFunction &MF) override; |
| |
| StringRef getPassName() const override { |
| return "DetectRoundChange: Leon erratum detection: detect any rounding " |
| "mode change request: use only the round-to-nearest rounding mode"; |
| } |
| }; |
| |
| class LLVM_LIBRARY_VISIBILITY FixAllFDIVSQRT : public LEONMachineFunctionPass { |
| public: |
| static char ID; |
| |
| FixAllFDIVSQRT(); |
| bool runOnMachineFunction(MachineFunction &MF) override; |
| |
| StringRef getPassName() const override { |
| return "FixAllFDIVSQRT: Erratum Fix LBR34: fix FDIVS/FDIVD/FSQRTS/FSQRTD " |
| "instructions with NOPs and floating-point store"; |
| } |
| }; |
| } // namespace llvm |
| |
| #endif // LLVM_LIB_TARGET_SPARC_LEON_PASSES_H |