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//===-- PPCBaseInfo.h - Top level definitions for PPC -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file contains small standalone helper functions and enum definitions for
// the PPC target useful for the compiler back-end and the MC libraries.
// As such, it deliberately does not include references to LLVM core
// code gen types, passes, etc..
//
//===----------------------------------------------------------------------===//
#ifndef PPCBASEINFO_H
#define PPCBASEINFO_H
#include "PPCMCTargetDesc.h"
#include "llvm/Support/ErrorHandling.h"
namespace llvm {
/// getPPCRegisterNumbering - Given the enum value for some register, e.g.
/// PPC::F14, return the number that it corresponds to (e.g. 14).
inline static unsigned getPPCRegisterNumbering(unsigned RegEnum) {
using namespace PPC;
switch (RegEnum) {
case 0: return 0;
case R0 : case X0 : case F0 : case V0 : case CR0: case CR0LT: return 0;
case R1 : case X1 : case F1 : case V1 : case CR1: case CR0GT: return 1;
case R2 : case X2 : case F2 : case V2 : case CR2: case CR0EQ: return 2;
case R3 : case X3 : case F3 : case V3 : case CR3: case CR0UN: return 3;
case R4 : case X4 : case F4 : case V4 : case CR4: case CR1LT: return 4;
case R5 : case X5 : case F5 : case V5 : case CR5: case CR1GT: return 5;
case R6 : case X6 : case F6 : case V6 : case CR6: case CR1EQ: return 6;
case R7 : case X7 : case F7 : case V7 : case CR7: case CR1UN: return 7;
case R8 : case X8 : case F8 : case V8 : case CR2LT: return 8;
case R9 : case X9 : case F9 : case V9 : case CR2GT: return 9;
case R10: case X10: case F10: case V10: case CR2EQ: return 10;
case R11: case X11: case F11: case V11: case CR2UN: return 11;
case R12: case X12: case F12: case V12: case CR3LT: return 12;
case R13: case X13: case F13: case V13: case CR3GT: return 13;
case R14: case X14: case F14: case V14: case CR3EQ: return 14;
case R15: case X15: case F15: case V15: case CR3UN: return 15;
case R16: case X16: case F16: case V16: case CR4LT: return 16;
case R17: case X17: case F17: case V17: case CR4GT: return 17;
case R18: case X18: case F18: case V18: case CR4EQ: return 18;
case R19: case X19: case F19: case V19: case CR4UN: return 19;
case R20: case X20: case F20: case V20: case CR5LT: return 20;
case R21: case X21: case F21: case V21: case CR5GT: return 21;
case R22: case X22: case F22: case V22: case CR5EQ: return 22;
case R23: case X23: case F23: case V23: case CR5UN: return 23;
case R24: case X24: case F24: case V24: case CR6LT: return 24;
case R25: case X25: case F25: case V25: case CR6GT: return 25;
case R26: case X26: case F26: case V26: case CR6EQ: return 26;
case R27: case X27: case F27: case V27: case CR6UN: return 27;
case R28: case X28: case F28: case V28: case CR7LT: return 28;
case R29: case X29: case F29: case V29: case CR7GT: return 29;
case R30: case X30: case F30: case V30: case CR7EQ: return 30;
case R31: case X31: case F31: case V31: case CR7UN: return 31;
default:
llvm_unreachable("Unhandled reg in PPCRegisterInfo::getRegisterNumbering!");
}
}
} // end namespace llvm;
#endif
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