X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FMC%2FMCInstPrinter.cpp;h=ba71245d0184fbb61d016bba313a998b0a57f17c;hb=94ad5a120fe320171f1630d1878ec1ae8b7eafa1;hp=f0fa2cda4a8319ac0a2fb851a3ba0c8b58c34062;hpb=ede042dc8d59ff48a48ef8e2271f2a7ee8324ba5;p=oota-llvm.git

diff --git a/lib/MC/MCInstPrinter.cpp b/lib/MC/MCInstPrinter.cpp
index f0fa2cda4a8..ba71245d018 100644
--- a/lib/MC/MCInstPrinter.cpp
+++ b/lib/MC/MCInstPrinter.cpp
@@ -8,9 +8,11 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCInstPrinter.h"
-#include "llvm/MC/MCAsmInfo.h"
-#include "llvm/MC/MCInst.h"
 #include "llvm/ADT/StringRef.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCInstrInfo.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Format.h"
 #include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
@@ -20,15 +22,89 @@ MCInstPrinter::~MCInstPrinter() {
 /// getOpcodeName - Return the name of the specified opcode enum (e.g.
 /// "MOV32ri") or empty if we can't resolve it.
 StringRef MCInstPrinter::getOpcodeName(unsigned Opcode) const {
-  return "";
+  return MII.getName(Opcode);
 }
 
 void MCInstPrinter::printRegName(raw_ostream &OS, unsigned RegNo) const {
-  assert(0 && "Target should implement this");
+  llvm_unreachable("Target should implement this");
+}
+
+void MCInstPrinter::printAnnotation(raw_ostream &OS, StringRef Annot) {
+  if (!Annot.empty()) {
+    if (CommentStream) {
+      (*CommentStream) << Annot;
+      // By definition (see MCInstPrinter.h), CommentStream must end with
+      // a newline after each comment.
+      if (Annot.back() != '\n')
+        (*CommentStream) << '\n';
+    } else
+      OS << " " << MAI.getCommentString() << " " << Annot;
+  }
+}
+
+/// Utility functions to make adding mark ups simpler.
+StringRef MCInstPrinter::markup(StringRef s) const {
+  if (getUseMarkup())
+    return s;
+  else
+    return "";
+}
+StringRef MCInstPrinter::markup(StringRef a, StringRef b) const {
+  if (getUseMarkup())
+    return a;
+  else
+    return b;
+}
+
+// For asm-style hex (e.g. 0ffh) the first digit always has to be a number.
+static bool needsLeadingZero(uint64_t Value)
+{
+  while(Value)
+  {
+    uint64_t digit = (Value >> 60) & 0xf;
+    if (digit != 0)
+      return (digit >= 0xa);
+    Value <<= 4;
+  }
+  return false;
+}
+
+format_object1<int64_t> MCInstPrinter::formatDec(const int64_t Value) const {
+  return format("%" PRId64, Value);
+}
+
+format_object1<int64_t> MCInstPrinter::formatHex(const int64_t Value) const {
+  switch(PrintHexStyle) {
+  case HexStyle::C:
+    if (Value < 0)
+      return format("-0x%" PRIx64, -Value);
+    else
+      return format("0x%" PRIx64, Value);
+  case HexStyle::Asm:
+    if (Value < 0) {
+      if (needsLeadingZero((uint64_t)(-Value)))
+        return format("-0%" PRIx64 "h", -Value);
+      else
+        return format("-%" PRIx64 "h", -Value);
+    } else {
+      if (needsLeadingZero((uint64_t)(Value)))
+        return format("0%" PRIx64 "h", Value);
+      else
+        return format("%" PRIx64 "h", Value);
+    }
+  }
+  llvm_unreachable("unsupported print style");
 }
 
-void MCInstPrinter::printAnnotations(const MCInst *MI, raw_ostream &OS) {
-  for (unsigned i = 0, e = MI->getNumAnnotations(); i != e; ++i) {
-    OS << MI->getAnnotation(i) << "\n";
+format_object1<uint64_t> MCInstPrinter::formatHex(const uint64_t Value) const {
+  switch(PrintHexStyle) {
+  case HexStyle::C:
+     return format("0x%" PRIx64, Value);
+  case HexStyle::Asm:
+    if (needsLeadingZero(Value))
+      return format("0%" PRIx64 "h", Value);
+    else
+      return format("%" PRIx64 "h", Value);
   }
+  llvm_unreachable("unsupported print style");
 }