Rework r233647, "llvm/examples: Suppress building a few JIT examples."

[oota-llvm.git] / lib / MC / MCAsmStreamer.cpp

diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 27cbd4962f12751b0b660e61c45d31d6d2352b52..9eba5e5bae77d97e8c5ab28a0e7a1e253bcb6c99 100644 (file)
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -8,8 +8,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/MC/MCStreamer.h"
-#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/StringExtras.h"
 #include "llvm/ADT/Twine.h"
 #include "llvm/MC/MCAsmBackend.h"
@@ -32,7 +32,6 @@
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Support/Path.h"
 #include <cctype>
-#include <unordered_map>
 using namespace llvm;
 
 namespace {
@@ -268,7 +267,7 @@ void MCAsmStreamer::EmitCommentsAndEOL() {
   }
 
   CommentStream.flush();
-  StringRef Comments = CommentToEmit.str();
+  StringRef Comments = CommentToEmit;
 
   assert(Comments.back() == '\n' &&
          "Comment array not newline terminated");
@@ -436,14 +435,18 @@ bool MCAsmStreamer::EmitSymbolAttribute(MCSymbol *Symbol,
   case MCSA_Internal:       OS << "\t.internal\t";        break;
   case MCSA_LazyReference:  OS << "\t.lazy_reference\t";  break;
   case MCSA_Local:          OS << "\t.local\t";           break;
-  case MCSA_NoDeadStrip:    OS << "\t.no_dead_strip\t";   break;
+  case MCSA_NoDeadStrip:
+    if (!MAI->hasNoDeadStrip())
+      return false;
+    OS << "\t.no_dead_strip\t";
+    break;
   case MCSA_SymbolResolver: OS << "\t.symbol_resolver\t"; break;
   case MCSA_PrivateExtern:
     OS << "\t.private_extern\t";
     break;
   case MCSA_Protected:      OS << "\t.protected\t";       break;
   case MCSA_Reference:      OS << "\t.reference\t";       break;
-  case MCSA_Weak:           OS << "\t.weak\t";            break;
+  case MCSA_Weak:           OS << MAI->getWeakDirective(); break;
   case MCSA_WeakDefinition:
     OS << "\t.weak_definition\t";
     break;
@@ -682,7 +685,11 @@ void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
       // We truncate our partial emission to fit within the bounds of the
       // emission domain.  This produces nicer output and silences potential
       // truncation warnings when round tripping through another assembler.
-      ValueToEmit &= ~0ULL >> (64 - EmissionSize * 8);
+      uint64_t Shift = 64 - EmissionSize * 8;
+      assert(Shift < static_cast<uint64_t>(
+                         std::numeric_limits<unsigned long long>::digits) &&
+             "undefined behavior");
+      ValueToEmit &= ~0ULL >> Shift;
       EmitIntValue(ValueToEmit, EmissionSize);
       Emitted += EmissionSize;
     }
@@ -700,7 +707,6 @@ void MCAsmStreamer::EmitULEB128Value(const MCExpr *Value) {
     EmitULEB128IntValue(IntValue);
     return;
   }
-  assert(MAI->hasLEB128() && "Cannot print a .uleb");
   OS << ".uleb128 " << *Value;
   EmitEOL();
 }
@@ -711,7 +717,6 @@ void MCAsmStreamer::EmitSLEB128Value(const MCExpr *Value) {
     EmitSLEB128IntValue(IntValue);
     return;
   }
-  assert(MAI->hasLEB128() && "Cannot print a .sleb");
   OS << ".sleb128 " << *Value;
   EmitEOL();
 }
@@ -867,8 +872,6 @@ void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
                                           unsigned Isa,
                                           unsigned Discriminator,
                                           StringRef FileName) {
-  this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
-                                          Isa, Discriminator, FileName);
   OS << "\t.loc\t" << FileNo << " " << Line << " " << Column;
   if (Flags & DWARF2_FLAG_BASIC_BLOCK)
     OS << " basic_block";
@@ -898,6 +901,8 @@ void MCAsmStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
        << Line << ':' << Column;
   }
   EmitEOL();
+  this->MCStreamer::EmitDwarfLocDirective(FileNo, Line, Column, Flags,
+                                          Isa, Discriminator, FileName);
 }
 
 MCSymbol *MCAsmStreamer::getDwarfLineTableSymbol(unsigned CUID) {
@@ -1089,19 +1094,6 @@ void MCAsmStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
   EmitEOL();
 }
 
-static const MCSection *getWin64EHTableSection(StringRef suffix,
-                                               MCContext &context) {
-  // FIXME: This doesn't belong in MCObjectFileInfo. However,
-  /// this duplicate code in MCWin64EH.cpp.
-  if (suffix == "")
-    return context.getObjectFileInfo()->getXDataSection();
-  return context.getCOFFSection((".xdata"+suffix).str(),
-                                COFF::IMAGE_SCN_CNT_INITIALIZED_DATA |
-                                COFF::IMAGE_SCN_MEM_READ |
-                                COFF::IMAGE_SCN_MEM_WRITE,
-                                SectionKind::getDataRel());
-}
-
 void MCAsmStreamer::EmitWinEHHandlerData() {
   MCStreamer::EmitWinEHHandlerData();
 
@@ -1110,8 +1102,8 @@ void MCAsmStreamer::EmitWinEHHandlerData() {
   // We only do this so the section switch that terminates the handler
   // data block is visible.
   WinEH::FrameInfo *CurFrame = getCurrentWinFrameInfo();
-  StringRef Suffix = WinEH::UnwindEmitter::GetSectionSuffix(CurFrame->Function);
-  if (const MCSection *XData = getWin64EHTableSection(Suffix, getContext()))
+  if (const MCSection *XData = WinEH::UnwindEmitter::getXDataSection(
+          CurFrame->Function, getContext()))
     SwitchSectionNoChange(XData);
 
   OS << "\t.seh_handlerdata";
@@ -1264,15 +1256,15 @@ void MCAsmStreamer::EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &S
 
   // Show the MCInst if enabled.
   if (ShowInst) {
-    Inst.dump_pretty(GetCommentOS(), MAI, InstPrinter.get(), "\n ");
+    Inst.dump_pretty(GetCommentOS(), InstPrinter.get(), "\n ");
     GetCommentOS() << "\n";
   }
 
   // If we have an AsmPrinter, use that to print, otherwise print the MCInst.
   if (InstPrinter)
-    InstPrinter->printInst(&Inst, OS, "");
+    InstPrinter->printInst(&Inst, OS, "", STI);
   else
-    Inst.print(OS, MAI);
+    Inst.print(OS);
   EmitEOL();
 }