mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2025-10-31 08:16:47 +00:00
42e8630239
definition below all of the header #include lines, lib/Target/... edition. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206842 91177308-0d34-0410-b5e6-96231b3b80d8
88 lines
2.4 KiB
C++
88 lines
2.4 KiB
C++
//===-- XCoreInstPrinter.cpp - Convert XCore MCInst to assembly syntax ----===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This class prints an XCore MCInst to a .s file.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "XCoreInstPrinter.h"
|
|
#include "llvm/ADT/StringExtras.h"
|
|
#include "llvm/MC/MCExpr.h"
|
|
#include "llvm/MC/MCInst.h"
|
|
#include "llvm/MC/MCInstrInfo.h"
|
|
#include "llvm/MC/MCSymbol.h"
|
|
#include "llvm/Support/ErrorHandling.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
using namespace llvm;
|
|
|
|
#define DEBUG_TYPE "asm-printer"
|
|
|
|
#include "XCoreGenAsmWriter.inc"
|
|
|
|
void XCoreInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
|
|
OS << StringRef(getRegisterName(RegNo)).lower();
|
|
}
|
|
|
|
void XCoreInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
|
|
StringRef Annot) {
|
|
printInstruction(MI, O);
|
|
printAnnotation(O, Annot);
|
|
}
|
|
|
|
void XCoreInstPrinter::
|
|
printInlineJT(const MCInst *MI, int opNum, raw_ostream &O) {
|
|
report_fatal_error("can't handle InlineJT");
|
|
}
|
|
|
|
void XCoreInstPrinter::
|
|
printInlineJT32(const MCInst *MI, int opNum, raw_ostream &O) {
|
|
report_fatal_error("can't handle InlineJT32");
|
|
}
|
|
|
|
static void printExpr(const MCExpr *Expr, raw_ostream &OS) {
|
|
int Offset = 0;
|
|
const MCSymbolRefExpr *SRE;
|
|
|
|
if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(Expr)) {
|
|
SRE = dyn_cast<MCSymbolRefExpr>(BE->getLHS());
|
|
const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(BE->getRHS());
|
|
assert(SRE && CE && "Binary expression must be sym+const.");
|
|
Offset = CE->getValue();
|
|
} else {
|
|
SRE = dyn_cast<MCSymbolRefExpr>(Expr);
|
|
assert(SRE && "Unexpected MCExpr type.");
|
|
}
|
|
assert(SRE->getKind() == MCSymbolRefExpr::VK_None);
|
|
|
|
OS << SRE->getSymbol();
|
|
|
|
if (Offset) {
|
|
if (Offset > 0)
|
|
OS << '+';
|
|
OS << Offset;
|
|
}
|
|
}
|
|
|
|
void XCoreInstPrinter::
|
|
printOperand(const MCInst *MI, unsigned OpNo, raw_ostream &O) {
|
|
const MCOperand &Op = MI->getOperand(OpNo);
|
|
if (Op.isReg()) {
|
|
printRegName(O, Op.getReg());
|
|
return;
|
|
}
|
|
|
|
if (Op.isImm()) {
|
|
O << Op.getImm();
|
|
return;
|
|
}
|
|
|
|
assert(Op.isExpr() && "unknown operand kind in printOperand");
|
|
printExpr(Op.getExpr(), O);
|
|
}
|