1 files changed, 45 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/LeonPasses.h b/llvm/lib/Target/Sparc/LeonPasses.h
index ca4b0f90c82..798f63407e3 100755
--- a/llvm/lib/Target/Sparc/LeonPasses.h
+++ b/llvm/lib/Target/Sparc/LeonPasses.h
@@ -25,10 +25,19 @@ class LLVM_LIBRARY_VISIBILITY LEONMachineFunctionPass
     : public MachineFunctionPass {
 protected:
   const SparcSubtarget *Subtarget;
+  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(TargetMachine &tm, char& ID);
   LEONMachineFunctionPass(char& ID);
+
+  int GetRegIndexForOperand(MachineInstr& MI, int OperandIndex);
+  void clearUsedRegisterList();
+  void markRegisterUsed(int registerIndex);
+  int getUnusedFPRegister(MachineRegisterInfo& MRI);
 };
 
 class LLVM_LIBRARY_VISIBILITY InsertNOPLoad : public LEONMachineFunctionPass {
@@ -42,6 +51,42 @@ public:
     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 FixFSMULD : public LEONMachineFunctionPass {
+public:
+  static char ID;
+
+  FixFSMULD(TargetMachine &tm);
+  bool runOnMachineFunction(MachineFunction& MF) override;
+
+  const char *getPassName() const override {
+    return "FixFSMULD: Erratum Fix LBR31: do not select FSMULD";
+  }
+};
+
+class LLVM_LIBRARY_VISIBILITY ReplaceFMULS : public LEONMachineFunctionPass {
+public:
+  static char ID;
+
+  ReplaceFMULS(TargetMachine &tm);
+  bool runOnMachineFunction(MachineFunction& MF) override;
+
+  const char *getPassName() const override {
+    return "ReplaceFMULS: Erratum Fix LBR32: replace FMULS instruction with a routine using conversions/double precision operations to replace FMULS";
+  }
+};
+
+class LLVM_LIBRARY_VISIBILITY FixAllFDIVSQRT : public LEONMachineFunctionPass {
+public:
+  static char ID;
+
+  FixAllFDIVSQRT(TargetMachine &tm);
+  bool runOnMachineFunction(MachineFunction& MF) override;
+
+  const char *getPassName() const override {
+    return "FixAllFDIVSQRT: Erratum Fix LBR34: fix FDIVS/FDIVD/FSQRTS/FSQRTD instructions with NOPs and floating-point store";
+  }
+};
 } // namespace llvm
 
 #endif