- Added a few target hooks to generate load / store instructions from / to any

address (not just from / to frameindexes).
- Added target hooks to unfold load / store instructions / SDNodes into separate
load, data processing, store instructions / SDNodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42621 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 65 insertions, 0 deletions

diff --git a/lib/Target/Sparc/SparcRegisterInfo.cpp b/lib/Target/Sparc/SparcRegisterInfo.cpp
index d3ea07b..7129f43 100644
--- a/lib/Target/Sparc/SparcRegisterInfo.cpp
+++ b/lib/Target/Sparc/SparcRegisterInfo.cpp
@@ -48,6 +48,34 @@ storeRegToStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
     assert(0 && "Can't store this register to stack slot");
 }
 
+void SparcRegisterInfo::storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
+                                       SmallVector<MachineOperand,4> Addr,
+                                       const TargetRegisterClass *RC,
+                                  SmallVector<MachineInstr*, 4> &NewMIs) const {
+  unsigned Opc = 0;
+  if (RC == SP::IntRegsRegisterClass)
+    Opc = SP::STri;
+  else if (RC == SP::FPRegsRegisterClass)
+    Opc = SP::STFri;
+  else if (RC == SP::DFPRegsRegisterClass)
+    Opc = SP::STDFri;
+  else
+    assert(0 && "Can't load this register");
+  MachineInstrBuilder MIB = BuildMI(TII.get(Opc));
+  for (unsigned i = 0, e = Addr.size(); i != e; ++i) {
+    MachineOperand &MO = Addr[i];
+    if (MO.isRegister())
+      MIB.addReg(MO.getReg());
+    else if (MO.isImmediate())
+      MIB.addImm(MO.getImmedValue());
+    else
+      MIB.addFrameIndex(MO.getFrameIndex());
+  }
+  MIB.addReg(SrcReg, false, false, true);
+  NewMIs.push_back(MIB);
+  return;
+}
+
 void SparcRegisterInfo::
 loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
                      unsigned DestReg, int FI,
@@ -62,6 +90,33 @@ loadRegFromStackSlot(MachineBasicBlock &MBB, MachineBasicBlock::iterator I,
     assert(0 && "Can't load this register from stack slot");
 }
 
+void SparcRegisterInfo::loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
+                                        SmallVector<MachineOperand,4> Addr,
+                                        const TargetRegisterClass *RC,
+                                  SmallVector<MachineInstr*, 4> &NewMIs) const {
+  unsigned Opc = 0;
+  if (RC == SP::IntRegsRegisterClass)
+    Opc = SP::LDri;
+  else if (RC == SP::FPRegsRegisterClass)
+    Opc = SP::LDFri;
+  else if (RC == SP::DFPRegsRegisterClass)
+    Opc = SP::LDDFri;
+  else
+    assert(0 && "Can't load this register");
+  MachineInstrBuilder MIB = BuildMI(TII.get(Opc), DestReg);
+  for (unsigned i = 0, e = Addr.size(); i != e; ++i) {
+    MachineOperand &MO = Addr[i];
+    if (MO.isRegister())
+      MIB.addReg(MO.getReg());
+    else if (MO.isImmediate())
+      MIB.addImm(MO.getImmedValue());
+    else
+      MIB.addFrameIndex(MO.getFrameIndex());
+  }
+  NewMIs.push_back(MIB);
+  return;
+}
+
 void SparcRegisterInfo::copyRegToReg(MachineBasicBlock &MBB,
                                      MachineBasicBlock::iterator I,
                                      unsigned DestReg, unsigned SrcReg,
diff --git a/lib/Target/Sparc/SparcRegisterInfo.h b/lib/Target/Sparc/SparcRegisterInfo.h
index a0e6fc2..39cf616 100644
--- a/lib/Target/Sparc/SparcRegisterInfo.h
+++ b/lib/Target/Sparc/SparcRegisterInfo.h
@@ -35,11 +35,21 @@ struct SparcRegisterInfo : public SparcGenRegisterInfo {
                            unsigned SrcReg, int FrameIndex,
                            const TargetRegisterClass *RC) const;
 
+  void storeRegToAddr(MachineFunction &MF, unsigned SrcReg,
+                      SmallVector<MachineOperand,4> Addr,
+                      const TargetRegisterClass *RC,
+                      SmallVector<MachineInstr*, 4> &NewMIs) const;
+
   void loadRegFromStackSlot(MachineBasicBlock &MBB,
                             MachineBasicBlock::iterator MBBI,
                             unsigned DestReg, int FrameIndex,
                             const TargetRegisterClass *RC) const;
 
+  void loadRegFromAddr(MachineFunction &MF, unsigned DestReg,
+                       SmallVector<MachineOperand,4> Addr,
+                       const TargetRegisterClass *RC,
+                       SmallVector<MachineInstr*, 4> &NewMIs) const;
+
   void copyRegToReg(MachineBasicBlock &MBB, MachineBasicBlock::iterator MBBI,
                     unsigned DestReg, unsigned SrcReg,
                     const TargetRegisterClass *DestRC,