summaryrefslogtreecommitdiff
path: root/lib/Target/CellSPU/SPURegisterInfo.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Target/CellSPU/SPURegisterInfo.cpp')
-rw-r--r--lib/Target/CellSPU/SPURegisterInfo.cpp357
1 files changed, 0 insertions, 357 deletions
diff --git a/lib/Target/CellSPU/SPURegisterInfo.cpp b/lib/Target/CellSPU/SPURegisterInfo.cpp
deleted file mode 100644
index e6c872d0bbb7..000000000000
--- a/lib/Target/CellSPU/SPURegisterInfo.cpp
+++ /dev/null
@@ -1,357 +0,0 @@
-//===-- SPURegisterInfo.cpp - Cell SPU Register Information ---------------===//
-//
-// The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains the Cell implementation of the TargetRegisterInfo class.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "reginfo"
-#include "SPURegisterInfo.h"
-#include "SPU.h"
-#include "SPUInstrBuilder.h"
-#include "SPUSubtarget.h"
-#include "SPUMachineFunction.h"
-#include "SPUFrameLowering.h"
-#include "llvm/Constants.h"
-#include "llvm/Type.h"
-#include "llvm/CodeGen/ValueTypes.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/CodeGen/RegisterScavenging.h"
-#include "llvm/CodeGen/ValueTypes.h"
-#include "llvm/Target/TargetFrameLowering.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/MathExtras.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/STLExtras.h"
-#include <cstdlib>
-
-#define GET_REGINFO_TARGET_DESC
-#include "SPUGenRegisterInfo.inc"
-
-using namespace llvm;
-
-/// getRegisterNumbering - Given the enum value for some register, e.g.
-/// PPC::F14, return the number that it corresponds to (e.g. 14).
-unsigned SPURegisterInfo::getRegisterNumbering(unsigned RegEnum) {
- using namespace SPU;
- switch (RegEnum) {
- case SPU::R0: return 0;
- case SPU::R1: return 1;
- case SPU::R2: return 2;
- case SPU::R3: return 3;
- case SPU::R4: return 4;
- case SPU::R5: return 5;
- case SPU::R6: return 6;
- case SPU::R7: return 7;
- case SPU::R8: return 8;
- case SPU::R9: return 9;
- case SPU::R10: return 10;
- case SPU::R11: return 11;
- case SPU::R12: return 12;
- case SPU::R13: return 13;
- case SPU::R14: return 14;
- case SPU::R15: return 15;
- case SPU::R16: return 16;
- case SPU::R17: return 17;
- case SPU::R18: return 18;
- case SPU::R19: return 19;
- case SPU::R20: return 20;
- case SPU::R21: return 21;
- case SPU::R22: return 22;
- case SPU::R23: return 23;
- case SPU::R24: return 24;
- case SPU::R25: return 25;
- case SPU::R26: return 26;
- case SPU::R27: return 27;
- case SPU::R28: return 28;
- case SPU::R29: return 29;
- case SPU::R30: return 30;
- case SPU::R31: return 31;
- case SPU::R32: return 32;
- case SPU::R33: return 33;
- case SPU::R34: return 34;
- case SPU::R35: return 35;
- case SPU::R36: return 36;
- case SPU::R37: return 37;
- case SPU::R38: return 38;
- case SPU::R39: return 39;
- case SPU::R40: return 40;
- case SPU::R41: return 41;
- case SPU::R42: return 42;
- case SPU::R43: return 43;
- case SPU::R44: return 44;
- case SPU::R45: return 45;
- case SPU::R46: return 46;
- case SPU::R47: return 47;
- case SPU::R48: return 48;
- case SPU::R49: return 49;
- case SPU::R50: return 50;
- case SPU::R51: return 51;
- case SPU::R52: return 52;
- case SPU::R53: return 53;
- case SPU::R54: return 54;
- case SPU::R55: return 55;
- case SPU::R56: return 56;
- case SPU::R57: return 57;
- case SPU::R58: return 58;
- case SPU::R59: return 59;
- case SPU::R60: return 60;
- case SPU::R61: return 61;
- case SPU::R62: return 62;
- case SPU::R63: return 63;
- case SPU::R64: return 64;
- case SPU::R65: return 65;
- case SPU::R66: return 66;
- case SPU::R67: return 67;
- case SPU::R68: return 68;
- case SPU::R69: return 69;
- case SPU::R70: return 70;
- case SPU::R71: return 71;
- case SPU::R72: return 72;
- case SPU::R73: return 73;
- case SPU::R74: return 74;
- case SPU::R75: return 75;
- case SPU::R76: return 76;
- case SPU::R77: return 77;
- case SPU::R78: return 78;
- case SPU::R79: return 79;
- case SPU::R80: return 80;
- case SPU::R81: return 81;
- case SPU::R82: return 82;
- case SPU::R83: return 83;
- case SPU::R84: return 84;
- case SPU::R85: return 85;
- case SPU::R86: return 86;
- case SPU::R87: return 87;
- case SPU::R88: return 88;
- case SPU::R89: return 89;
- case SPU::R90: return 90;
- case SPU::R91: return 91;
- case SPU::R92: return 92;
- case SPU::R93: return 93;
- case SPU::R94: return 94;
- case SPU::R95: return 95;
- case SPU::R96: return 96;
- case SPU::R97: return 97;
- case SPU::R98: return 98;
- case SPU::R99: return 99;
- case SPU::R100: return 100;
- case SPU::R101: return 101;
- case SPU::R102: return 102;
- case SPU::R103: return 103;
- case SPU::R104: return 104;
- case SPU::R105: return 105;
- case SPU::R106: return 106;
- case SPU::R107: return 107;
- case SPU::R108: return 108;
- case SPU::R109: return 109;
- case SPU::R110: return 110;
- case SPU::R111: return 111;
- case SPU::R112: return 112;
- case SPU::R113: return 113;
- case SPU::R114: return 114;
- case SPU::R115: return 115;
- case SPU::R116: return 116;
- case SPU::R117: return 117;
- case SPU::R118: return 118;
- case SPU::R119: return 119;
- case SPU::R120: return 120;
- case SPU::R121: return 121;
- case SPU::R122: return 122;
- case SPU::R123: return 123;
- case SPU::R124: return 124;
- case SPU::R125: return 125;
- case SPU::R126: return 126;
- case SPU::R127: return 127;
- default:
- report_fatal_error("Unhandled reg in SPURegisterInfo::getRegisterNumbering");
- }
-}
-
-SPURegisterInfo::SPURegisterInfo(const SPUSubtarget &subtarget,
- const TargetInstrInfo &tii) :
- SPUGenRegisterInfo(SPU::R0), Subtarget(subtarget), TII(tii)
-{
-}
-
-/// getPointerRegClass - Return the register class to use to hold pointers.
-/// This is used for addressing modes.
-const TargetRegisterClass *
-SPURegisterInfo::getPointerRegClass(const MachineFunction &MF, unsigned Kind)
- const {
- return &SPU::R32CRegClass;
-}
-
-const uint16_t *
-SPURegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const
-{
- // Cell ABI calling convention
- static const uint16_t SPU_CalleeSaveRegs[] = {
- SPU::R80, SPU::R81, SPU::R82, SPU::R83,
- SPU::R84, SPU::R85, SPU::R86, SPU::R87,
- SPU::R88, SPU::R89, SPU::R90, SPU::R91,
- SPU::R92, SPU::R93, SPU::R94, SPU::R95,
- SPU::R96, SPU::R97, SPU::R98, SPU::R99,
- SPU::R100, SPU::R101, SPU::R102, SPU::R103,
- SPU::R104, SPU::R105, SPU::R106, SPU::R107,
- SPU::R108, SPU::R109, SPU::R110, SPU::R111,
- SPU::R112, SPU::R113, SPU::R114, SPU::R115,
- SPU::R116, SPU::R117, SPU::R118, SPU::R119,
- SPU::R120, SPU::R121, SPU::R122, SPU::R123,
- SPU::R124, SPU::R125, SPU::R126, SPU::R127,
- SPU::R2, /* environment pointer */
- SPU::R1, /* stack pointer */
- SPU::R0, /* link register */
- 0 /* end */
- };
-
- return SPU_CalleeSaveRegs;
-}
-
-/*!
- R0 (link register), R1 (stack pointer) and R2 (environment pointer -- this is
- generally unused) are the Cell's reserved registers
- */
-BitVector SPURegisterInfo::getReservedRegs(const MachineFunction &MF) const {
- BitVector Reserved(getNumRegs());
- Reserved.set(SPU::R0); // LR
- Reserved.set(SPU::R1); // SP
- Reserved.set(SPU::R2); // environment pointer
- return Reserved;
-}
-
-//===----------------------------------------------------------------------===//
-// Stack Frame Processing methods
-//===----------------------------------------------------------------------===//
-
-//--------------------------------------------------------------------------
-void
-SPURegisterInfo::eliminateCallFramePseudoInstr(MachineFunction &MF,
- MachineBasicBlock &MBB,
- MachineBasicBlock::iterator I)
- const
-{
- // Simply discard ADJCALLSTACKDOWN, ADJCALLSTACKUP instructions.
- MBB.erase(I);
-}
-
-void
-SPURegisterInfo::eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
- RegScavenger *RS) const
-{
- unsigned i = 0;
- MachineInstr &MI = *II;
- MachineBasicBlock &MBB = *MI.getParent();
- MachineFunction &MF = *MBB.getParent();
- MachineFrameInfo *MFI = MF.getFrameInfo();
- DebugLoc dl = II->getDebugLoc();
-
- while (!MI.getOperand(i).isFI()) {
- ++i;
- assert(i < MI.getNumOperands() && "Instr doesn't have FrameIndex operand!");
- }
-
- MachineOperand &SPOp = MI.getOperand(i);
- int FrameIndex = SPOp.getIndex();
-
- // Now add the frame object offset to the offset from r1.
- int Offset = MFI->getObjectOffset(FrameIndex);
-
- // Most instructions, except for generated FrameIndex additions using AIr32
- // and ILAr32, have the immediate in operand 1. AIr32 and ILAr32 have the
- // immediate in operand 2.
- unsigned OpNo = 1;
- if (MI.getOpcode() == SPU::AIr32 || MI.getOpcode() == SPU::ILAr32)
- OpNo = 2;
-
- MachineOperand &MO = MI.getOperand(OpNo);
-
- // Offset is biased by $lr's slot at the bottom.
- Offset += MO.getImm() + MFI->getStackSize() + SPUFrameLowering::minStackSize();
- assert((Offset & 0xf) == 0
- && "16-byte alignment violated in eliminateFrameIndex");
-
- // Replace the FrameIndex with base register with $sp (aka $r1)
- SPOp.ChangeToRegister(SPU::R1, false);
-
- // if 'Offset' doesn't fit to the D-form instruction's
- // immediate, convert the instruction to X-form
- // if the instruction is not an AI (which takes a s10 immediate), assume
- // it is a load/store that can take a s14 immediate
- if ((MI.getOpcode() == SPU::AIr32 && !isInt<10>(Offset))
- || !isInt<14>(Offset)) {
- int newOpcode = convertDFormToXForm(MI.getOpcode());
- unsigned tmpReg = findScratchRegister(II, RS, &SPU::R32CRegClass, SPAdj);
- BuildMI(MBB, II, dl, TII.get(SPU::ILr32), tmpReg )
- .addImm(Offset);
- BuildMI(MBB, II, dl, TII.get(newOpcode), MI.getOperand(0).getReg())
- .addReg(tmpReg, RegState::Kill)
- .addReg(SPU::R1);
- // remove the replaced D-form instruction
- MBB.erase(II);
- } else {
- MO.ChangeToImmediate(Offset);
- }
-}
-
-unsigned
-SPURegisterInfo::getFrameRegister(const MachineFunction &MF) const
-{
- return SPU::R1;
-}
-
-int
-SPURegisterInfo::convertDFormToXForm(int dFormOpcode) const
-{
- switch(dFormOpcode)
- {
- case SPU::AIr32: return SPU::Ar32;
- case SPU::LQDr32: return SPU::LQXr32;
- case SPU::LQDr128: return SPU::LQXr128;
- case SPU::LQDv16i8: return SPU::LQXv16i8;
- case SPU::LQDv4i32: return SPU::LQXv4i32;
- case SPU::LQDv4f32: return SPU::LQXv4f32;
- case SPU::STQDr32: return SPU::STQXr32;
- case SPU::STQDr128: return SPU::STQXr128;
- case SPU::STQDv16i8: return SPU::STQXv16i8;
- case SPU::STQDv4i32: return SPU::STQXv4i32;
- case SPU::STQDv4f32: return SPU::STQXv4f32;
-
- default: assert( false && "Unhandled D to X-form conversion");
- }
- // default will assert, but need to return something to keep the
- // compiler happy.
- return dFormOpcode;
-}
-
-// TODO this is already copied from PPC. Could this convenience function
-// be moved to the RegScavenger class?
-unsigned
-SPURegisterInfo::findScratchRegister(MachineBasicBlock::iterator II,
- RegScavenger *RS,
- const TargetRegisterClass *RC,
- int SPAdj) const
-{
- assert(RS && "Register scavenging must be on");
- unsigned Reg = RS->FindUnusedReg(RC);
- if (Reg == 0)
- Reg = RS->scavengeRegister(RC, II, SPAdj);
- assert( Reg && "Register scavenger failed");
- return Reg;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 16:14:48 +0000