| //===- subzero/src/IceTargetLoweringX86RegClass.h - x86 reg class -*- C++ -*-=// |
| // |
| // The Subzero Code Generator |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// This file declares the X86 register class extensions. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SUBZERO_SRC_ICETARGETLOWERINGX86REGCLASS_H |
| #define SUBZERO_SRC_ICETARGETLOWERINGX86REGCLASS_H |
| |
| #include "IceOperand.h" // RC_Target |
| |
| namespace Ice { |
| namespace X86Internal { |
| |
| // Extend enum RegClass with x86-specific register classes. |
| enum RegClassX86 : uint8_t { |
| RCX86_Is64To8 = RC_Target, // 64-bit GPR trivially truncable to 8-bit |
| RCX86_Is32To8, // 32-bit GPR trivially truncable to 8-bit |
| RCX86_Is16To8, // 16-bit GPR trivially truncable to 8-bit |
| RCX86_IsTrunc8Rcvr, // 8-bit GPR that can receive a trunc operation |
| RCX86_IsAhRcvr, // 8-bit GPR that can be a mov dest from %ah |
| RCX86_NUM |
| }; |
| |
| } // end of namespace X86Internal |
| } // end of namespace Ice |
| |
| #endif // SUBZERO_SRC_ICETARGETLOWERINGX86REGCLASS_H |