Eliminate the CurMBB member from SelectionDAGBuilder. For places that

[oota-llvm.git] / lib / CodeGen / AsmPrinter / DwarfDebug.cpp

diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
index ff69f549425859b4bd80841b22f65f20da74c6f0..23f08f1df5cc4df008d90aa5617b9fd11b646929 100644 (file)
--- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
@@ -28,6 +28,7 @@
 #include "llvm/Target/TargetLoweringObjectFile.h"
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Target/TargetRegisterInfo.h"
+#include "llvm/Target/TargetOptions.h"
 #include "llvm/Analysis/DebugInfo.h"
 #include "llvm/ADT/STLExtras.h"
 #include "llvm/ADT/StringExtras.h"
@@ -302,7 +303,7 @@ DbgScope::~DbgScope() {
 DwarfDebug::DwarfDebug(AsmPrinter *A, Module *M)
   : Asm(A), MMI(Asm->MMI), ModuleCU(0),
     AbbreviationsSet(InitAbbreviationsSetSize), 
-    CurrentFnDbgScope(0) {
+    CurrentFnDbgScope(0), PrevLabel(NULL) {
   NextStringPoolNumber = 0;
       
   DwarfFrameSectionSym = DwarfInfoSectionSym = DwarfAbbrevSectionSym = 0;
@@ -1249,6 +1250,10 @@ DIE *DwarfDebug::createSubprogramDIE(const DISubprogram &SP, bool MakeDecl) {
 
   // DW_TAG_inlined_subroutine may refer to this DIE.
   ModuleCU->insertDIE(SP.getNode(), SPDie);
+  
+  if (NoFramePointerElim == false)
+    addUInt(SPDie, dwarf::DW_AT_APPLE_omit_frame_ptr, dwarf::DW_FORM_flag, 1);
+
   return SPDie;
 }
 
@@ -2068,8 +2073,9 @@ void DwarfDebug::collectVariableInfo() {
       // FIXME : Lift this restriction.
       if (MInsn->getNumOperands() != 3)
         continue;
-      DIVariable DV((MDNode*)(MInsn->getOperand(MInsn->getNumOperands()
-                                                - 1).getMetadata()));
+      DIVariable DV(
+        const_cast<MDNode *>(MInsn->getOperand(MInsn->getNumOperands() - 1)
+                               .getMetadata()));
       if (DV.getTag() == dwarf::DW_TAG_arg_variable)  {
         // FIXME Handle inlined subroutine arguments.
         DbgVariable *ArgVar = new DbgVariable(DV, MInsn, NULL);
@@ -2354,6 +2360,7 @@ void DwarfDebug::endFunction(const MachineFunction *MF) {
   InsnBeforeLabelMap.clear();
   InsnAfterLabelMap.clear();
   Lines.clear();
+  PrevLabel = NULL;
 }
 
 /// recordSourceLine - Register a source line with debug info. Returns the
@@ -2490,7 +2497,8 @@ void DwarfDebug::EmitSectionLabels() {
   EmitSectionSym(Asm, TLOF.getDwarfPubTypesSection());
   DwarfStrSectionSym = 
     EmitSectionSym(Asm, TLOF.getDwarfStrSection(), "section_str");
-  EmitSectionSym(Asm, TLOF.getDwarfRangesSection());
+  DwarfDebugRangeSectionSym = EmitSectionSym(Asm, TLOF.getDwarfRangesSection(),
+                                             "debug_range");
 
   TextSectionSym = EmitSectionSym(Asm, TLOF.getTextSection(), "text_begin");
   EmitSectionSym(Asm, TLOF.getDataSection());
@@ -2534,6 +2542,15 @@ void DwarfDebug::emitDIE(DIE *Die) {
       Asm->EmitInt32(Addr);
       break;
     }
+    case dwarf::DW_AT_ranges: {
+      // DW_AT_range Value encodes offset in debug_range section.
+      DIEInteger *V = cast<DIEInteger>(Values[i]);
+      Asm->EmitLabelOffsetDifference(DwarfDebugRangeSectionSym,
+                                     V->getValue(),
+                                     DwarfDebugRangeSectionSym,
+                                     4);
+      break;
+    }
     default:
       // Emit an attribute using the defined form.
       Values[i]->EmitValue(Asm, Form);
@@ -3055,7 +3072,16 @@ void DwarfDebug::EmitDebugARanges() {
 void DwarfDebug::emitDebugRanges() {
   // Start the dwarf ranges section.
   Asm->OutStreamer.SwitchSection(
-                            Asm->getObjFileLowering().getDwarfRangesSection());
+    Asm->getObjFileLowering().getDwarfRangesSection());
+  for (SmallVector<const MCSymbol *, 8>::const_iterator I = DebugRangeSymbols.begin(),
+         E = DebugRangeSymbols.end(); I != E; ++I) {
+    if (*I) 
+      Asm->EmitLabelDifference(*I, TextSectionSym,
+                               Asm->getTargetData().getPointerSize());
+    else
+      Asm->OutStreamer.EmitIntValue(0, Asm->getTargetData().getPointerSize(), 
+                                    /*addrspace*/0);
+  }
 }
 
 /// emitDebugMacInfo - Emit visible names into a debug macinfo section.