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