Move get[S|U]LEB128Size() to LEB128.h.
[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfException.cpp
index bf7f7eec9fe18bb8482ee469a7a82361d86478c6..dd4cad683deec9b3280a099ecbc9cd2c354c4c71 100644 (file)
 //===----------------------------------------------------------------------===//
 
 #include "DwarfException.h"
-#include "llvm/Module.h"
+#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/StringExtras.h"
+#include "llvm/ADT/Twine.h"
 #include "llvm/CodeGen/AsmPrinter.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
 #include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/CodeGen/MachineModuleInfo.h"
+#include "llvm/IR/DataLayout.h"
+#include "llvm/IR/Mangler.h"
+#include "llvm/IR/Module.h"
 #include "llvm/MC/MCAsmInfo.h"
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCExpr.h"
 #include "llvm/MC/MCSection.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/MC/MCSymbol.h"
-#include "llvm/Target/Mangler.h"
-#include "llvm/Target/TargetData.h"
+#include "llvm/Support/Dwarf.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/LEB128.h"
 #include "llvm/Target/TargetFrameLowering.h"
 #include "llvm/Target/TargetLoweringObjectFile.h"
-#include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetOptions.h"
 #include "llvm/Target/TargetRegisterInfo.h"
-#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/FormattedStream.h"
-#include "llvm/ADT/SmallString.h"
-#include "llvm/ADT/StringExtras.h"
-#include "llvm/ADT/Twine.h"
 using namespace llvm;
 
 DwarfException::DwarfException(AsmPrinter *A)
@@ -108,7 +109,7 @@ ComputeActionsTable(const SmallVectorImpl<const LandingPadInfo*> &LandingPads,
   for (std::vector<unsigned>::const_iterator
          I = FilterIds.begin(), E = FilterIds.end(); I != E; ++I) {
     FilterOffsets.push_back(Offset);
-    Offset -= MCAsmInfo::getULEB128Size(*I);
+    Offset -= getULEB128Size(*I);
   }
 
   FirstActions.reserve(LandingPads.size());
@@ -132,14 +133,12 @@ ComputeActionsTable(const SmallVectorImpl<const LandingPadInfo*> &LandingPads,
         unsigned SizePrevIds = PrevLPI->TypeIds.size();
         assert(Actions.size());
         PrevAction = Actions.size() - 1;
-        SizeAction =
-          MCAsmInfo::getSLEB128Size(Actions[PrevAction].NextAction) +
-          MCAsmInfo::getSLEB128Size(Actions[PrevAction].ValueForTypeID);
+        SizeAction = getSLEB128Size(Actions[PrevAction].NextAction) +
+                     getSLEB128Size(Actions[PrevAction].ValueForTypeID);
 
         for (unsigned j = NumShared; j != SizePrevIds; ++j) {
           assert(PrevAction != (unsigned)-1 && "PrevAction is invalid!");
-          SizeAction -=
-            MCAsmInfo::getSLEB128Size(Actions[PrevAction].ValueForTypeID);
+          SizeAction -= getSLEB128Size(Actions[PrevAction].ValueForTypeID);
           SizeAction += -Actions[PrevAction].NextAction;
           PrevAction = Actions[PrevAction].Previous;
         }
@@ -150,10 +149,10 @@ ComputeActionsTable(const SmallVectorImpl<const LandingPadInfo*> &LandingPads,
         int TypeID = TypeIds[J];
         assert(-1 - TypeID < (int)FilterOffsets.size() && "Unknown filter id!");
         int ValueForTypeID = TypeID < 0 ? FilterOffsets[-1 - TypeID] : TypeID;
-        unsigned SizeTypeID = MCAsmInfo::getSLEB128Size(ValueForTypeID);
+        unsigned SizeTypeID = getSLEB128Size(ValueForTypeID);
 
         int NextAction = SizeAction ? -(SizeAction + SizeTypeID) : 0;
-        SizeAction = SizeTypeID + MCAsmInfo::getSLEB128Size(NextAction);
+        SizeAction = SizeTypeID + getSLEB128Size(NextAction);
         SizeSiteActions += SizeAction;
 
         ActionEntry Action = { ValueForTypeID, NextAction, PrevAction };
@@ -401,9 +400,9 @@ void DwarfException::EmitExceptionTable() {
   }
 
   for (unsigned i = 0, e = CallSites.size(); i < e; ++i) {
-    CallSiteTableLength += MCAsmInfo::getULEB128Size(CallSites[i].Action);
+    CallSiteTableLength += getULEB128Size(CallSites[i].Action);
     if (IsSJLJ)
-      CallSiteTableLength += MCAsmInfo::getULEB128Size(i);
+      CallSiteTableLength += getULEB128Size(i);
   }
 
   // Type infos.
@@ -416,7 +415,7 @@ void DwarfException::EmitExceptionTable() {
     // that we're omitting that bit.
     TTypeEncoding = dwarf::DW_EH_PE_omit;
     // dwarf::DW_EH_PE_absptr
-    TypeFormatSize = Asm->getTargetData().getPointerSize();
+    TypeFormatSize = Asm->getDataLayout().getPointerSize();
   } else {
     // Okay, we have actual filters or typeinfos to emit.  As such, we need to
     // pick a type encoding for them.  We're about to emit a list of pointers to
@@ -488,15 +487,14 @@ void DwarfException::EmitExceptionTable() {
   // We chose another solution: don't output padding inside the table like GCC
   // does, instead output it before the table.
   unsigned SizeTypes = TypeInfos.size() * TypeFormatSize;
-  unsigned CallSiteTableLengthSize =
-    MCAsmInfo::getULEB128Size(CallSiteTableLength);
+  unsigned CallSiteTableLengthSize = getULEB128Size(CallSiteTableLength);
   unsigned TTypeBaseOffset =
     sizeof(int8_t) +                            // Call site format
     CallSiteTableLengthSize +                   // Call site table length size
     CallSiteTableLength +                       // Call site table length
     SizeActions +                               // Actions size
     SizeTypes;
-  unsigned TTypeBaseOffsetSize = MCAsmInfo::getULEB128Size(TTypeBaseOffset);
+  unsigned TTypeBaseOffsetSize = getULEB128Size(TTypeBaseOffset);
   unsigned TotalSize =
     sizeof(int8_t) +                            // LPStart format
     sizeof(int8_t) +                            // TType format
@@ -607,7 +605,7 @@ void DwarfException::EmitExceptionTable() {
       if (!S.PadLabel) {
         if (VerboseAsm)
           Asm->OutStreamer.AddComment("    has no landing pad");
-        Asm->OutStreamer.EmitIntValue(0, 4/*size*/, 0/*addrspace*/);
+        Asm->OutStreamer.EmitIntValue(0, 4/*size*/);
       } else {
         if (VerboseAsm)
           Asm->OutStreamer.AddComment(Twine("    jumps to ") +
@@ -671,6 +669,18 @@ void DwarfException::EmitExceptionTable() {
     Asm->EmitSLEB128(Action.NextAction);
   }
 
+  EmitTypeInfos(TTypeEncoding);
+
+  Asm->EmitAlignment(2);
+}
+
+void DwarfException::EmitTypeInfos(unsigned TTypeEncoding) {
+  const std::vector<const GlobalVariable *> &TypeInfos = MMI->getTypeInfos();
+  const std::vector<unsigned> &FilterIds = MMI->getFilterIds();
+
+  bool VerboseAsm = Asm->OutStreamer.isVerboseAsm();
+
+  int Entry = 0;
   // Emit the Catch TypeInfos.
   if (VerboseAsm && !TypeInfos.empty()) {
     Asm->OutStreamer.AddComment(">> Catch TypeInfos <<");
@@ -683,11 +693,7 @@ void DwarfException::EmitExceptionTable() {
     const GlobalVariable *GV = *I;
     if (VerboseAsm)
       Asm->OutStreamer.AddComment("TypeInfo " + Twine(Entry--));
-    if (GV)
-      Asm->EmitReference(GV, TTypeEncoding);
-    else
-      Asm->OutStreamer.EmitIntValue(0,Asm->GetSizeOfEncodedValue(TTypeEncoding),
-                                    0);
+    Asm->EmitTTypeReference(GV, TTypeEncoding);
   }
 
   // Emit the Exception Specifications.
@@ -707,24 +713,21 @@ void DwarfException::EmitExceptionTable() {
 
     Asm->EmitULEB128(TypeID);
   }
-
-  Asm->EmitAlignment(2);
 }
 
-/// EndModule - Emit all exception information that should come after the
+/// endModule - Emit all exception information that should come after the
 /// content.
-void DwarfException::EndModule() {
-  assert(0 && "Should be implemented");
+void DwarfException::endModule() {
+  llvm_unreachable("Should be implemented");
 }
 
-/// BeginFunction - Gather pre-function exception information. Assumes it's
+/// beginFunction - Gather pre-function exception information. Assumes it's
 /// being emitted immediately after the function entry point.
-void DwarfException::BeginFunction(const MachineFunction *MF) {
-  assert(0 && "Should be implemented");
+void DwarfException::beginFunction(const MachineFunction *MF) {
+  llvm_unreachable("Should be implemented");
 }
 
-/// EndFunction - Gather and emit post-function exception information.
-///
-void DwarfException::EndFunction() {
-  assert(0 && "Should be implemented");
+/// endFunction - Gather and emit post-function exception information.
+void DwarfException::endFunction(const MachineFunction *) {
+  llvm_unreachable("Should be implemented");
 }