dwarfdump: Use the index to find the right abbrev offset in DWP files

[oota-llvm.git] / lib / Target / TargetMachine.cpp

diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 31dbdc6f9a7f2a32cb2b1072e6f860622668ce67..850c93cb21b896f0306cb4e7e5a13a0ccfa4925a 100644 (file)
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -38,20 +38,27 @@ using namespace llvm;
 //
 
 TargetMachine::TargetMachine(const Target &T, StringRef DataLayoutString,
-                             StringRef TT, StringRef CPU, StringRef FS,
+                             const Triple &TT, StringRef CPU, StringRef FS,
                              const TargetOptions &Options)
     : TheTarget(T), DL(DataLayoutString), TargetTriple(TT), TargetCPU(CPU),
       TargetFS(FS), CodeGenInfo(nullptr), AsmInfo(nullptr), MRI(nullptr),
-      MII(nullptr), RequireStructuredCFG(false), Options(Options) {}
+      MII(nullptr), STI(nullptr), RequireStructuredCFG(false),
+      Options(Options) {}
 
 TargetMachine::~TargetMachine() {
   delete CodeGenInfo;
   delete AsmInfo;
   delete MRI;
   delete MII;
+  delete STI;
 }
 
 /// \brief Reset the target options based on the function's attributes.
+// FIXME: This function needs to go away for a number of reasons:
+// a) global state on the TargetMachine is terrible in general,
+// b) there's no default state here to keep,
+// c) these target options should be passed only on the function
+//    and not on the TargetMachine (via TargetOptions) at all.
 void TargetMachine::resetTargetOptions(const Function &F) const {
 #define RESET_OPTION(X, Y)                                                     \
   do {                                                                         \
@@ -59,15 +66,10 @@ void TargetMachine::resetTargetOptions(const Function &F) const {
       Options.X = (F.getFnAttribute(Y).getValueAsString() == "true");          \
   } while (0)
 
-  RESET_OPTION(NoFramePointerElim, "no-frame-pointer-elim");
   RESET_OPTION(LessPreciseFPMADOption, "less-precise-fpmad");
   RESET_OPTION(UnsafeFPMath, "unsafe-fp-math");
   RESET_OPTION(NoInfsFPMath, "no-infs-fp-math");
   RESET_OPTION(NoNaNsFPMath, "no-nans-fp-math");
-  RESET_OPTION(UseSoftFloat, "use-soft-float");
-  RESET_OPTION(DisableTailCalls, "disable-tail-calls");
-
-  Options.MCOptions.SanitizeAddress = F.hasFnAttribute(Attribute::SanitizeAddress);
 }
 
 /// getRelocationModel - Returns the code generation relocation model. The
@@ -148,21 +150,9 @@ void TargetMachine::setOptLevel(CodeGenOpt::Level Level) const {
 }
 
 TargetIRAnalysis TargetMachine::getTargetIRAnalysis() {
-  return TargetIRAnalysis(
-      [this](Function &) { return TargetTransformInfo(getDataLayout()); });
-}
-
-static bool canUsePrivateLabel(const MCAsmInfo &AsmInfo,
-                               const MCSection &Section) {
-  if (!AsmInfo.isSectionAtomizableBySymbols(Section))
-    return true;
-
-  // If it is not dead stripped, it is safe to use private labels.
-  const MCSectionMachO &SMO = cast<MCSectionMachO>(Section);
-  if (SMO.hasAttribute(MachO::S_ATTR_NO_DEAD_STRIP))
-    return true;
-
-  return false;
+  return TargetIRAnalysis([this](const Function &F) {
+    return TargetTransformInfo(F.getParent()->getDataLayout());
+  });
 }
 
 void TargetMachine::getNameWithPrefix(SmallVectorImpl<char> &Name,
@@ -174,16 +164,13 @@ void TargetMachine::getNameWithPrefix(SmallVectorImpl<char> &Name,
     Mang.getNameWithPrefix(Name, GV, false);
     return;
   }
-  SectionKind GVKind = TargetLoweringObjectFile::getKindForGlobal(GV, *this);
   const TargetLoweringObjectFile *TLOF = getObjFileLowering();
-  const MCSection *TheSection = TLOF->SectionForGlobal(GV, GVKind, Mang, *this);
-  bool CannotUsePrivateLabel = !canUsePrivateLabel(*AsmInfo, *TheSection);
-  TLOF->getNameWithPrefix(Name, GV, CannotUsePrivateLabel, Mang, *this);
+  TLOF->getNameWithPrefix(Name, GV, Mang, *this);
 }
 
 MCSymbol *TargetMachine::getSymbol(const GlobalValue *GV, Mangler &Mang) const {
-  SmallString<60> NameStr;
+  SmallString<128> NameStr;
   getNameWithPrefix(NameStr, GV, Mang);
   const TargetLoweringObjectFile *TLOF = getObjFileLowering();
-  return TLOF->getContext().GetOrCreateSymbol(NameStr.str());
+  return TLOF->getContext().getOrCreateSymbol(NameStr);
 }