| //===- X86InstrInfo.cpp - X86 Instruction Information ---------------===// |
| // |
| // This file contains the X86 implementation of the MachineInstrInfo class. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "X86InstrInfo.h" |
| #include "llvm/CodeGen/MachineInstr.h" |
| #include <iostream> |
| |
| // X86Insts - Turn the InstrInfo.def file into a bunch of instruction |
| // descriptors |
| // |
| static const MachineInstrDescriptor X86Insts[] = { |
| #define I(ENUM, NAME, BASEOPCODE, FLAGS, TSFLAGS) \ |
| { NAME, \ |
| -1, /* Always vararg */ \ |
| ((TSFLAGS) & X86II::Void) ? -1 : 0, /* Result is in 0 */ \ |
| 0, false, 0, 0, TSFLAGS, FLAGS, TSFLAGS }, |
| #include "X86InstrInfo.def" |
| }; |
| |
| X86InstrInfo::X86InstrInfo() |
| : MachineInstrInfo(X86Insts, sizeof(X86Insts)/sizeof(X86Insts[0]), 0) { |
| } |
| |
| |
| static unsigned char BaseOpcodes[] = { |
| #define I(ENUM, NAME, BASEOPCODE, FLAGS, TSFLAGS) BASEOPCODE, |
| #include "X86InstrInfo.def" |
| }; |
| |
| // getBaseOpcodeFor - This function returns the "base" X86 opcode for the |
| // specified opcode number. |
| // |
| unsigned char X86InstrInfo::getBaseOpcodeFor(unsigned Opcode) const { |
| assert(Opcode < sizeof(BaseOpcodes)/sizeof(BaseOpcodes[0]) && |
| "Opcode out of range!"); |
| return BaseOpcodes[Opcode]; |
| } |