165b0b297db16252835ab4d78f33578baa3ace28aChris Lattner//===-- MCInstPrinter.cpp - Convert an MCInst to target assembly syntax ---===// 265b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// 365b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// The LLVM Compiler Infrastructure 465b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// 565b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// This file is distributed under the University of Illinois Open Source 665b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// License. See LICENSE.TXT for details. 765b0b297db16252835ab4d78f33578baa3ace28aChris Lattner// 865b0b297db16252835ab4d78f33578baa3ace28aChris Lattner//===----------------------------------------------------------------------===// 965b0b297db16252835ab4d78f33578baa3ace28aChris Lattner 1065b0b297db16252835ab4d78f33578baa3ace28aChris Lattner#include "llvm/MC/MCInstPrinter.h" 117e85180d15c4d5a451fbc078f7194a41c6230a57Chris Lattner#include "llvm/ADT/StringRef.h" 12d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/MC/MCAsmInfo.h" 13d04a8d4b33ff316ca4cf961e06c9e312eff8e64fChandler Carruth#include "llvm/MC/MCInstrInfo.h" 14858143816d43e58b17bfd11cb1b57afbd7f0f893Craig Topper#include "llvm/Support/ErrorHandling.h" 1514ccc9007a932a23201251ced4be4c898a62d6a5Kevin Enderby#include "llvm/Support/Format.h" 16ede042dc8d59ff48a48ef8e2271f2a7ee8324ba5Owen Anderson#include "llvm/Support/raw_ostream.h" 1765b0b297db16252835ab4d78f33578baa3ace28aChris Lattnerusing namespace llvm; 1865b0b297db16252835ab4d78f33578baa3ace28aChris Lattner 1965b0b297db16252835ab4d78f33578baa3ace28aChris LattnerMCInstPrinter::~MCInstPrinter() { 20aa5c1b7f9366950b4cbe710c8426d8589d5d975bEdward O'Callaghan} 217e85180d15c4d5a451fbc078f7194a41c6230a57Chris Lattner 227e85180d15c4d5a451fbc078f7194a41c6230a57Chris Lattner/// getOpcodeName - Return the name of the specified opcode enum (e.g. 237e85180d15c4d5a451fbc078f7194a41c6230a57Chris Lattner/// "MOV32ri") or empty if we can't resolve it. 247e85180d15c4d5a451fbc078f7194a41c6230a57Chris LattnerStringRef MCInstPrinter::getOpcodeName(unsigned Opcode) const { 25c97ef618d2d849a272a353c2b4343fc5902cd921Benjamin Kramer return MII.getName(Opcode); 267e85180d15c4d5a451fbc078f7194a41c6230a57Chris Lattner} 2757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 28cde4ce411b1ace4a80ea1dd38df97e8508aed0c9Rafael Espindolavoid MCInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const { 29858143816d43e58b17bfd11cb1b57afbd7f0f893Craig Topper llvm_unreachable("Target should implement this"); 3057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 31ede042dc8d59ff48a48ef8e2271f2a7ee8324ba5Owen Anderson 3298c5ddabca1debf935a07d14d0cbc9732374bdb8Owen Andersonvoid MCInstPrinter::printAnnotation(raw_ostream &OS, StringRef Annot) { 33317eaf19937813d630166bfec7b933a98ea89aa5Owen Anderson if (!Annot.empty()) { 34db3de106376558c7425d557b1b980f631107cd14Quentin Colombet if (CommentStream) { 359e5887b17e634b98f7c1cf0ee4f25c218097d08eKevin Enderby (*CommentStream) << Annot; 36db3de106376558c7425d557b1b980f631107cd14Quentin Colombet // By definition (see MCInstPrinter.h), CommentStream must end with 37db3de106376558c7425d557b1b980f631107cd14Quentin Colombet // a newline after each comment. 38db3de106376558c7425d557b1b980f631107cd14Quentin Colombet if (Annot.back() != '\n') 39db3de106376558c7425d557b1b980f631107cd14Quentin Colombet (*CommentStream) << '\n'; 40db3de106376558c7425d557b1b980f631107cd14Quentin Colombet } else 419e5887b17e634b98f7c1cf0ee4f25c218097d08eKevin Enderby OS << " " << MAI.getCommentString() << " " << Annot; 42317eaf19937813d630166bfec7b933a98ea89aa5Owen Anderson } 43ede042dc8d59ff48a48ef8e2271f2a7ee8324ba5Owen Anderson} 44e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby 45e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby/// Utility functions to make adding mark ups simpler. 46e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin EnderbyStringRef MCInstPrinter::markup(StringRef s) const { 47e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby if (getUseMarkup()) 48e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby return s; 49e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby else 50e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby return ""; 51e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby} 52e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin EnderbyStringRef MCInstPrinter::markup(StringRef a, StringRef b) const { 53e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby if (getUseMarkup()) 54e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby return a; 55e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby else 56e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby return b; 57e1d4a8813427b76c5f59cf5b70a9df734b7e9284Kevin Enderby} 5814ccc9007a932a23201251ced4be4c898a62d6a5Kevin Enderby 5944c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea// For asm-style hex (e.g. 0ffh) the first digit always has to be a number. 6044c8e346c79cc2affa31385df254b85aa0f5c869Daniel Maleastatic bool needsLeadingZero(uint64_t Value) 6144c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea{ 6244c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea while(Value) 6344c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea { 6444c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea uint64_t digit = (Value >> 60) & 0xf; 6544c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (digit != 0) 6644c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return (digit >= 0xa); 6744c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea Value <<= 4; 6844c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea } 6944c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return false; 7044c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea} 7144c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea 7244c8e346c79cc2affa31385df254b85aa0f5c869Daniel Maleaformat_object1<int64_t> MCInstPrinter::formatDec(const int64_t Value) const { 7344c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("%" PRId64, Value); 7444c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea} 7544c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea 7644c8e346c79cc2affa31385df254b85aa0f5c869Daniel Maleaformat_object1<int64_t> MCInstPrinter::formatHex(const int64_t Value) const { 7744c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea switch(PrintHexStyle) { 7844c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea case HexStyle::C: 7944c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (Value < 0) 8044c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("-0x%" PRIx64, -Value); 8144c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea else 8244c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("0x%" PRIx64, Value); 8344c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea case HexStyle::Asm: 8444c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (Value < 0) { 8544c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (needsLeadingZero((uint64_t)(-Value))) 8644c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("-0%" PRIx64 "h", -Value); 8744c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea else 8844c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("-%" PRIx64 "h", -Value); 8944c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea } else { 9044c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (needsLeadingZero((uint64_t)(Value))) 9144c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("0%" PRIx64 "h", Value); 9244c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea else 9344c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("%" PRIx64 "h", Value); 9444c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea } 9544c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea } 961cd2ed8fdf7547bff3aaedccaac741b8a1d416a3Duncan Sands llvm_unreachable("unsupported print style"); 9744c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea} 9844c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea 9944c8e346c79cc2affa31385df254b85aa0f5c869Daniel Maleaformat_object1<uint64_t> MCInstPrinter::formatHex(const uint64_t Value) const { 10044c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea switch(PrintHexStyle) { 10144c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea case HexStyle::C: 10244c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("0x%" PRIx64, Value); 10344c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea case HexStyle::Asm: 10444c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea if (needsLeadingZero(Value)) 10544c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("0%" PRIx64 "h", Value); 10644c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea else 10744c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea return format("%" PRIx64 "h", Value); 10844c8e346c79cc2affa31385df254b85aa0f5c869Daniel Malea } 1091cd2ed8fdf7547bff3aaedccaac741b8a1d416a3Duncan Sands llvm_unreachable("unsupported print style"); 11014ccc9007a932a23201251ced4be4c898a62d6a5Kevin Enderby} 111