llvm-6502/lib/Target/X86/X86.td
Alkis Evlogimenos 5ab29b504d Each instruction now has both an ImmType and a MemType. This describes
the size of the immediate and the memory operand on instructions that
use them. This resolves problems with instructions that take both a
memory and an immediate operand but their sizes differ (i.e. ADDmi32b).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11967 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 22:02:05 +00:00

52 lines
1.9 KiB
C++

//===- X86.td - Target definition file for the Intel X86 arch ---*- 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.
//
//===----------------------------------------------------------------------===//
//
// This is a target description file for the Intel i386 architecture, refered to
// here as the "X86" architecture.
//
//===----------------------------------------------------------------------===//
// Get the target-independent interfaces which we are implementing...
//
include "../Target.td"
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
include "X86RegisterInfo.td"
//===----------------------------------------------------------------------===//
// Instruction Descriptions
//===----------------------------------------------------------------------===//
include "X86InstrInfo.td"
def X86InstrInfo : InstrInfo {
let PHIInst = PHI;
// Define how we want to layout our TargetSpecific information field... This
// should be kept up-to-date with the fields in the X86InstrInfo.h file.
let TSFlagsFields = ["FormBits" , "hasOpSizePrefix" , "Prefix", "MemTypeBits",
"ImmTypeBits", "FPFormBits", "printImplicitUses", "Opcode"];
let TSFlagsShifts = [0, 5, 6, 10, 13,
15, 18, 19];
}
def X86 : Target {
// Specify the callee saved registers.
let CalleeSavedRegisters = [ESI, EDI, EBX, EBP];
// Yes, pointers are 32-bits in size.
let PointerType = i32;
// Information about the instructions...
let InstructionSet = X86InstrInfo;
}