1 //===-- MCInstPrinter.cpp - Convert an MCInst to target assembly syntax ---===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "llvm/MC/MCInstPrinter.h"
11 #include "llvm/ADT/StringRef.h"
12 #include "llvm/MC/MCAsmInfo.h"
13 #include "llvm/MC/MCInstrInfo.h"
14 #include "llvm/Support/ErrorHandling.h"
15 #include "llvm/Support/Format.h"
16 #include "llvm/Support/raw_ostream.h"
19 MCInstPrinter::~MCInstPrinter() {
22 /// getOpcodeName - Return the name of the specified opcode enum (e.g.
23 /// "MOV32ri") or empty if we can't resolve it.
24 StringRef MCInstPrinter::getOpcodeName(unsigned Opcode) const {
25 return MII.getName(Opcode);
28 void MCInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
29 llvm_unreachable("Target should implement this");
32 void MCInstPrinter::printAnnotation(raw_ostream &OS, StringRef Annot) {
35 (*CommentStream) << Annot;
36 // By definition (see MCInstPrinter.h), CommentStream must end with
37 // a newline after each comment.
38 if (Annot.back() != '\n')
39 (*CommentStream) << '\n';
41 OS << " " << MAI.getCommentString() << " " << Annot;
45 /// Utility functions to make adding mark ups simpler.
46 StringRef MCInstPrinter::markup(StringRef s) const {
52 StringRef MCInstPrinter::markup(StringRef a, StringRef b) const {
59 // For asm-style hex (e.g. 0ffh) the first digit always has to be a number.
60 static bool needsLeadingZero(uint64_t Value)
64 uint64_t digit = (Value >> 60) & 0xf;
66 return (digit >= 0xa);
72 format_object1<int64_t> MCInstPrinter::formatDec(const int64_t Value) const {
73 return format("%" PRId64, Value);
76 format_object1<int64_t> MCInstPrinter::formatHex(const int64_t Value) const {
77 switch(PrintHexStyle) {
80 return format("-0x%" PRIx64, -Value);
82 return format("0x%" PRIx64, Value);
85 if (needsLeadingZero((uint64_t)(-Value)))
86 return format("-0%" PRIx64 "h", -Value);
88 return format("-%" PRIx64 "h", -Value);
90 if (needsLeadingZero((uint64_t)(Value)))
91 return format("0%" PRIx64 "h", Value);
93 return format("%" PRIx64 "h", Value);
96 llvm_unreachable("unsupported print style");
99 format_object1<uint64_t> MCInstPrinter::formatHex(const uint64_t Value) const {
100 switch(PrintHexStyle) {
102 return format("0x%" PRIx64, Value);
104 if (needsLeadingZero(Value))
105 return format("0%" PRIx64 "h", Value);
107 return format("%" PRIx64 "h", Value);
109 llvm_unreachable("unsupported print style");