[DWARF][NFC] Overload AsmPrinter::emitDwarfStringOffsets() to take a DwarfStringPoolEntry

record.

Differential Revision: https://reviews.llvm.org/D41920

llvm-svn: 322250

3 files changed, 12 insertions, 4 deletions

diff --git a/llvm/include/llvm/CodeGen/AsmPrinter.h b/llvm/include/llvm/CodeGen/AsmPrinter.h
index b8944a66800..282d1a626f6 100644
--- a/llvm/include/llvm/CodeGen/AsmPrinter.h
+++ b/llvm/include/llvm/CodeGen/AsmPrinter.h
@@ -508,7 +508,12 @@ public:
   /// When possible, emit a DwarfStringPool section offset without any
   /// relocations, and without using the symbol.  Otherwise, defers to \a
   /// emitDwarfSymbolReference().
-  void emitDwarfStringOffset(DwarfStringPoolEntryRef S) const;
+  void emitDwarfStringOffset(DwarfStringPoolEntry S) const;
+
+  /// Emit the 4-byte offset of a string from the start of its section.
+  void emitDwarfStringOffset(DwarfStringPoolEntryRef S) const {
+    emitDwarfStringOffset(S.getEntry());
+  }
 
   /// Get the value for DW_AT_APPLE_isa. Zero if no isa encoding specified.
   virtual unsigned getISAEncoding() { return 0; }
diff --git a/llvm/include/llvm/CodeGen/DwarfStringPoolEntry.h b/llvm/include/llvm/CodeGen/DwarfStringPoolEntry.h
index fc2b5ddd2d2..e6c0483cfc3 100644
--- a/llvm/include/llvm/CodeGen/DwarfStringPoolEntry.h
+++ b/llvm/include/llvm/CodeGen/DwarfStringPoolEntry.h
@@ -41,6 +41,8 @@ public:
   unsigned getOffset() const { return I->second.Offset; }
   unsigned getIndex() const { return I->second.Index; }
   StringRef getString() const { return I->first(); }
+  /// Return the entire string pool entry for convenience.
+  DwarfStringPoolEntry getEntry() const { return I->getValue(); }
 
   bool operator==(const DwarfStringPoolEntryRef &X) const { return I == X.I; }
   bool operator!=(const DwarfStringPoolEntryRef &X) const { return I != X.I; }
diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
index 08eb14e242c..e6e8871361b 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinterDwarf.cpp
@@ -167,14 +167,15 @@ void AsmPrinter::emitDwarfSymbolReference(const MCSymbol *Label,
   EmitLabelDifference(Label, Label->getSection().getBeginSymbol(), 4);
 }
 
-void AsmPrinter::emitDwarfStringOffset(DwarfStringPoolEntryRef S) const {
+void AsmPrinter::emitDwarfStringOffset(DwarfStringPoolEntry S) const {
   if (MAI->doesDwarfUseRelocationsAcrossSections()) {
-    emitDwarfSymbolReference(S.getSymbol());
+    assert(S.Symbol && "No symbol available");
+    emitDwarfSymbolReference(S.Symbol);
     return;
   }
 
   // Just emit the offset directly; no need for symbol math.
-  EmitInt32(S.getOffset());
+  EmitInt32(S.Offset);
 }
 
 //===----------------------------------------------------------------------===//