//
//===----------------------------------------------------------------------===//
+#include "SystemZInstrInfo.h"
#include "SystemZRegisterInfo.h"
-#include "SystemZTargetMachine.h"
+#include "SystemZSubtarget.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/MachineRegisterInfo.h"
+#include "llvm/Target/TargetFrameLowering.h"
+
+using namespace llvm;
#define GET_REGINFO_TARGET_DESC
#include "SystemZGenRegisterInfo.inc"
-using namespace llvm;
-
-SystemZRegisterInfo::SystemZRegisterInfo(SystemZTargetMachine &tm)
- : SystemZGenRegisterInfo(SystemZ::R14D), TM(tm) {}
+SystemZRegisterInfo::SystemZRegisterInfo()
+ : SystemZGenRegisterInfo(SystemZ::R14D) {}
-const uint16_t*
+const MCPhysReg *
SystemZRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
- static const uint16_t CalleeSavedRegs[] = {
- SystemZ::R6D, SystemZ::R7D, SystemZ::R8D, SystemZ::R9D,
- SystemZ::R10D, SystemZ::R11D, SystemZ::R12D, SystemZ::R13D,
- SystemZ::R14D, SystemZ::R15D,
- SystemZ::F8D, SystemZ::F9D, SystemZ::F10D, SystemZ::F11D,
- SystemZ::F12D, SystemZ::F13D, SystemZ::F14D, SystemZ::F15D,
- 0
- };
-
- return CalleeSavedRegs;
+ return CSR_SystemZ_SaveList;
+}
+
+const uint32_t *
+SystemZRegisterInfo::getCallPreservedMask(const MachineFunction &MF,
+ CallingConv::ID CC) const {
+ return CSR_SystemZ_RegMask;
}
BitVector
SystemZRegisterInfo::getReservedRegs(const MachineFunction &MF) const {
BitVector Reserved(getNumRegs());
- const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+ const SystemZFrameLowering *TFI = getFrameLowering(MF);
if (TFI->hasFP(MF)) {
// R11D is the frame pointer. Reserve all aliases.
Reserved.set(SystemZ::R11D);
- Reserved.set(SystemZ::R11W);
+ Reserved.set(SystemZ::R11L);
+ Reserved.set(SystemZ::R11H);
Reserved.set(SystemZ::R10Q);
}
// R15D is the stack pointer. Reserve all aliases.
Reserved.set(SystemZ::R15D);
- Reserved.set(SystemZ::R15W);
+ Reserved.set(SystemZ::R15L);
+ Reserved.set(SystemZ::R15H);
Reserved.set(SystemZ::R14Q);
return Reserved;
}
MachineBasicBlock &MBB = *MI->getParent();
MachineFunction &MF = *MBB.getParent();
- const SystemZInstrInfo &TII =
- *static_cast<const SystemZInstrInfo*>(TM.getInstrInfo());
- const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+ auto *TII =
+ static_cast<const SystemZInstrInfo *>(MF.getSubtarget().getInstrInfo());
+ const SystemZFrameLowering *TFI = getFrameLowering(MF);
DebugLoc DL = MI->getDebugLoc();
// Decompose the frame index into a base and offset.
int FrameIndex = MI->getOperand(FIOperandNum).getIndex();
- unsigned BasePtr = getFrameRegister(MF);
- int64_t Offset = (TFI->getFrameIndexOffset(MF, FrameIndex) +
+ unsigned BasePtr;
+ int64_t Offset = (TFI->getFrameIndexReference(MF, FrameIndex, BasePtr) +
MI->getOperand(FIOperandNum + 1).getImm());
// Special handling of dbg_value instructions.
// See if the offset is in range, or if an equivalent instruction that
// accepts the offset exists.
unsigned Opcode = MI->getOpcode();
- unsigned OpcodeForOffset = TII.getOpcodeForOffset(Opcode, Offset);
+ unsigned OpcodeForOffset = TII->getOpcodeForOffset(Opcode, Offset);
if (OpcodeForOffset)
MI->getOperand(FIOperandNum).ChangeToRegister(BasePtr, false);
else {
int64_t Mask = 0xffff;
do {
Offset = OldOffset & Mask;
- OpcodeForOffset = TII.getOpcodeForOffset(Opcode, Offset);
+ OpcodeForOffset = TII->getOpcodeForOffset(Opcode, Offset);
Mask >>= 1;
assert(Mask && "One offset must be OK");
} while (!OpcodeForOffset);
&& MI->getOperand(FIOperandNum + 2).getReg() == 0) {
// Load the offset into the scratch register and use it as an index.
// The scratch register then dies here.
- TII.loadImmediate(MBB, MI, ScratchReg, HighOffset);
+ TII->loadImmediate(MBB, MI, ScratchReg, HighOffset);
MI->getOperand(FIOperandNum).ChangeToRegister(BasePtr, false);
MI->getOperand(FIOperandNum + 2).ChangeToRegister(ScratchReg,
false, false, true);
} else {
// Load the anchor address into a scratch register.
- unsigned LAOpcode = TII.getOpcodeForOffset(SystemZ::LA, HighOffset);
+ unsigned LAOpcode = TII->getOpcodeForOffset(SystemZ::LA, HighOffset);
if (LAOpcode)
- BuildMI(MBB, MI, DL, TII.get(LAOpcode),ScratchReg)
+ BuildMI(MBB, MI, DL, TII->get(LAOpcode),ScratchReg)
.addReg(BasePtr).addImm(HighOffset).addReg(0);
else {
// Load the high offset into the scratch register and use it as
// an index.
- TII.loadImmediate(MBB, MI, ScratchReg, HighOffset);
- BuildMI(MBB, MI, DL, TII.get(SystemZ::AGR),ScratchReg)
+ TII->loadImmediate(MBB, MI, ScratchReg, HighOffset);
+ BuildMI(MBB, MI, DL, TII->get(SystemZ::AGR),ScratchReg)
.addReg(ScratchReg, RegState::Kill).addReg(BasePtr);
}
false, false, true);
}
}
- MI->setDesc(TII.get(OpcodeForOffset));
+ MI->setDesc(TII->get(OpcodeForOffset));
MI->getOperand(FIOperandNum + 1).ChangeToImmediate(Offset);
}
unsigned
SystemZRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
- const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
+ const SystemZFrameLowering *TFI = getFrameLowering(MF);
return TFI->hasFP(MF) ? SystemZ::R11D : SystemZ::R15D;
}