mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-11-01 00:11:00 +00:00
60c73e4f23
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14366 91177308-0d34-0410-b5e6-96231b3b80d8
112 lines
4.6 KiB
C++
112 lines
4.6 KiB
C++
//===- SparcV8Reg.td - Describe the SparcV8 Register File -------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file was developed by the LLVM research group and is distributed under
|
|
// the University of Illinois Open Source License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Declarations that describe the SparcV8 register file
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// Registers are identified with 5-bit ID numbers.
|
|
// Ri - 32-bit integer registers
|
|
class Ri<bits<5> num> : Register {
|
|
field bits<5> Num = num;
|
|
}
|
|
// Rf - 32-bit floating-point registers
|
|
class Rf<bits<5> num> : Register {
|
|
field bits<5> Num = num;
|
|
}
|
|
// Rd - Slots in the FP register file for 64-bit floating-point values.
|
|
class Rd<bits<5> num, string realName> : Register {
|
|
field bits<5> Num = num;
|
|
let Name = realName;
|
|
}
|
|
// Rs - Special "ancillary state registers" registers, like the Y, ASR, PSR,
|
|
// WIM, TBR, etc registers
|
|
class Rs<bits<5> num> : Register {
|
|
field bits<5> Num = num;
|
|
}
|
|
|
|
let Namespace = "V8" in {
|
|
def G0 : Ri< 0>; def G1 : Ri< 1>; def G2 : Ri< 2>; def G3 : Ri< 3>;
|
|
def G4 : Ri< 4>; def G5 : Ri< 5>; def G6 : Ri< 6>; def G7 : Ri< 7>;
|
|
def O0 : Ri< 8>; def O1 : Ri< 9>; def O2 : Ri<10>; def O3 : Ri<11>;
|
|
def O4 : Ri<12>; def O5 : Ri<13>; def O6 : Ri<14>; def O7 : Ri<15>;
|
|
def L0 : Ri<16>; def L1 : Ri<17>; def L2 : Ri<18>; def L3 : Ri<19>;
|
|
def L4 : Ri<20>; def L5 : Ri<21>; def L6 : Ri<22>; def L7 : Ri<23>;
|
|
def I0 : Ri<24>; def I1 : Ri<25>; def I2 : Ri<26>; def I3 : Ri<27>;
|
|
def I4 : Ri<28>; def I5 : Ri<29>; def I6 : Ri<30>; def I7 : Ri<31>;
|
|
|
|
// Standard register aliases.
|
|
def SP : Ri<14>; def FP : Ri<30>;
|
|
|
|
// Floating-point registers:
|
|
def F0 : Rf< 0>; def F1 : Rf< 1>; def F2 : Rf< 2>; def F3 : Rf< 3>;
|
|
def F4 : Rf< 4>; def F5 : Rf< 5>; def F6 : Rf< 6>; def F7 : Rf< 7>;
|
|
def F8 : Rf< 8>; def F9 : Rf< 9>; def F10 : Rf<10>; def F11 : Rf<11>;
|
|
def F12 : Rf<12>; def F13 : Rf<13>; def F14 : Rf<14>; def F15 : Rf<15>;
|
|
def F16 : Rf<16>; def F17 : Rf<17>; def F18 : Rf<18>; def F19 : Rf<19>;
|
|
def F20 : Rf<20>; def F21 : Rf<21>; def F22 : Rf<22>; def F23 : Rf<23>;
|
|
def F24 : Rf<24>; def F25 : Rf<25>; def F26 : Rf<26>; def F27 : Rf<27>;
|
|
def F28 : Rf<28>; def F29 : Rf<29>; def F30 : Rf<30>; def F31 : Rf<31>;
|
|
|
|
// Aliases of the F* registers used to hold 64-bit fp values (doubles).
|
|
def D0 : Rd< 0, "F0">; def D1 : Rd< 2, "F2">; def D2 : Rd< 4, "F4">;
|
|
def D3 : Rd< 6, "F6">; def D4 : Rd< 8, "F8">; def D5 : Rd<10, "F10">;
|
|
def D6 : Rd<12, "F12">; def D7 : Rd<14, "F14">; def D8 : Rd<16, "F16">;
|
|
def D9 : Rd<18, "F18">; def D10 : Rd<20, "F20">; def D11 : Rd<22, "F22">;
|
|
def D12 : Rd<24, "F24">; def D13 : Rd<26, "F26">; def D14 : Rd<28, "F28">;
|
|
def D15 : Rd<30, "F30">;
|
|
|
|
// The Y register.
|
|
def Y : Rs<0>;
|
|
}
|
|
|
|
// Register classes.
|
|
//
|
|
// FIXME: the register order should be defined in terms of the preferred
|
|
// allocation order...
|
|
//
|
|
def IntRegs : RegisterClass<i32, 8, [L0, L1, L2, L3, L4, L5, L6, L7,
|
|
I0, I1, I2, I3, I4, I5,
|
|
G1, G2, G3, G4, G5, G6, G7,
|
|
O0, O1, O2, O3, O4, O5, O7,
|
|
// Non-allocatable regs
|
|
O6, I6, I7, G0]> {
|
|
let Methods = [{
|
|
iterator allocation_order_end(MachineFunction &MF) const {
|
|
return end()-4; // Don't allocate special registers
|
|
}
|
|
}];
|
|
}
|
|
|
|
def FPRegs : RegisterClass<f32, 4, [F0, F1, F2, F3, F4, F5, F6, F7, F8,
|
|
F9, F10, F11, F12, F13, F14, F15, F16, F17, F18, F19, F20, F21, F22,
|
|
F23, F24, F25, F26, F27, F28, F29, F30, F31]>;
|
|
|
|
def DFPRegs : RegisterClass<f64, 8, [D0, D1, D2, D3, D4, D5, D6, D7,
|
|
D8, D9, D10, D11, D12, D13, D14, D15]>;
|
|
|
|
// Tell the register file generator that the double-fp pseudo-registers
|
|
// alias the registers used for single-fp values.
|
|
def : RegisterAliases<D0, [F0, F1]>;
|
|
def : RegisterAliases<D1, [F2, F3]>;
|
|
def : RegisterAliases<D2, [F4, F5]>;
|
|
def : RegisterAliases<D3, [F6, F7]>;
|
|
def : RegisterAliases<D4, [F8, F9]>;
|
|
def : RegisterAliases<D5, [F10, F11]>;
|
|
def : RegisterAliases<D6, [F12, F13]>;
|
|
def : RegisterAliases<D7, [F14, F15]>;
|
|
def : RegisterAliases<D8, [F16, F17]>;
|
|
def : RegisterAliases<D9, [F18, F19]>;
|
|
def : RegisterAliases<D10, [F20, F21]>;
|
|
def : RegisterAliases<D11, [F22, F23]>;
|
|
def : RegisterAliases<D12, [F24, F25]>;
|
|
def : RegisterAliases<D13, [F26, F27]>;
|
|
def : RegisterAliases<D14, [F28, F29]>;
|
|
def : RegisterAliases<D15, [F30, F31]>;
|