[llvm-commits] [llvm] r99500 - in /llvm/trunk: include/llvm/MC/MCAssembler.h lib/MC/MCAssembler.cpp

[Daniel Dunbar]

Author: ddunbar
Date: Thu Mar 25 02:10:11 2010
New Revision: 99500

URL: http://llvm.org/viewvc/llvm-project?rev=99500&view=rev
Log:
MC: Explicity track section and fragment ordinals.

Modified:
    llvm/trunk/include/llvm/MC/MCAssembler.h
    llvm/trunk/lib/MC/MCAssembler.cpp

Modified: llvm/trunk/include/llvm/MC/MCAssembler.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCAssembler.h?rev=99500&r1=99499&r2=99500&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/MCAssembler.h (original)
+++ llvm/trunk/include/llvm/MC/MCAssembler.h Thu Mar 25 02:10:11 2010
@@ -91,6 +91,10 @@
   /// initialized.
   uint64_t EffectiveSize;
 
+  /// Ordinal - The global index of this fragment. This is the index across all
+  /// sections, not just the parent section.
+  unsigned Ordinal;
+
   /// @}
 
 protected:
@@ -106,6 +110,9 @@
   MCSectionData *getParent() const { return Parent; }
   void setParent(MCSectionData *Value) { Parent = Value; }
 
+  unsigned getOrdinal() const { return Ordinal; }
+  void setOrdinal(unsigned Value) { Ordinal = Value; }
+
   static bool classof(const MCFragment *O) { return true; }
 
   virtual void dump();
@@ -390,6 +397,9 @@
   iplist<MCFragment> Fragments;
   const MCSection *Section;
 
+  /// Ordinal - The section index in the assemblers section list.
+  unsigned Ordinal;
+
   /// Alignment - The maximum alignment seen in this section.
   unsigned Alignment;
 
@@ -428,6 +438,9 @@
   bool hasInstructions() const { return HasInstructions; }
   void setHasInstructions(bool Value) { HasInstructions = Value; }
 
+  unsigned getOrdinal() const { return Ordinal; }
+  void setOrdinal(unsigned Value) { Ordinal = Value; }
+
   /// @name Fragment Access
   /// @{
 
@@ -451,6 +464,8 @@
   bool empty() const { return Fragments.empty(); }
 
   void dump();
+
+  /// @}
 };
 
 // FIXME: Same concerns as with SectionData.

Modified: llvm/trunk/lib/MC/MCAssembler.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAssembler.cpp?rev=99500&r1=99499&r2=99500&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAssembler.cpp (original)
+++ llvm/trunk/lib/MC/MCAssembler.cpp Thu Mar 25 02:10:11 2010
@@ -568,6 +568,18 @@
       llvm::errs() << "assembler backend - pre-layout\n--\n";
       dump(); });
 
+  // Assign section and fragment ordinals, all subsequent backend code is
+  // responsible for updating these in place.
+  unsigned SectionIndex = 0;
+  unsigned FragmentIndex = 0;
+  for (MCAssembler::iterator it = begin(), ie = end(); it != ie; ++it) {
+    it->setOrdinal(SectionIndex++);
+
+    for (MCSectionData::iterator it2 = it->begin(),
+           ie2 = it->end(); it2 != ie2; ++it2)
+      it2->setOrdinal(FragmentIndex++);
+  }
+
   // Layout until everything fits.
   MCAsmLayout Layout(*this);
   while (LayoutOnce(Layout))
@@ -781,6 +793,7 @@
       //
       // FIXME: Add MCAsmLayout utility for this.
       DF->setParent(IF->getParent());
+      DF->setOrdinal(IF->getOrdinal());
       Layout.setFragmentOffset(DF, Layout.getFragmentOffset(IF));
       Layout.setFragmentEffectiveSize(DF, Layout.getFragmentEffectiveSize(IF));