Teach our Dwarf emission to use the string pool.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143097 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 12 insertions, 0 deletions

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index 06c5c83c95..f0d34236c6 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -194,6 +194,11 @@ namespace llvm {
 
     bool needsSEHMoves();
 
+    /// needsRelocationsForDwarfStringPool - Specifies whether the object format
+    /// expects to use relocations to refer to debug entries. Alternatively we
+    /// emit section offsets in bytes from the start of the string pool.
+    bool needsRelocationsForDwarfStringPool() const;
+
     /// EmitConstantPool - Print to the current output stream assembly
     /// representations of the constants in the constant pool MCP. This is
     /// used to print out constants which have been "spilled to memory" by
diff --git a/include/llvm/MC/MCAsmInfo.h b/include/llvm/MC/MCAsmInfo.h
index 56ef4d229a..d7402b3397 100644
--- a/include/llvm/MC/MCAsmInfo.h
+++ b/include/llvm/MC/MCAsmInfo.h
@@ -330,6 +330,10 @@ namespace llvm {
     /// use EmitLabelOffsetDifference.
     bool DwarfUsesLabelOffsetForRanges;
 
+    /// DwarfUsesRelocationsForStringPool - True if this Dwarf output must use
+    /// relocations to refer to entries in the string pool.
+    bool DwarfUsesRelocationsForStringPool;
+
     /// DwarfRegNumForCFI - True if dwarf register numbers are printed
     /// instead of symbolic register names in .cfi_* directives.
     bool DwarfRegNumForCFI;  // Defaults to false;
@@ -566,6 +570,9 @@ namespace llvm {
     bool doesDwarfUsesLabelOffsetForRanges() const {
       return DwarfUsesLabelOffsetForRanges;
     }
+    bool doesDwarfUseRelocationsForStringPool() const {
+      return DwarfUsesRelocationsForStringPool;
+    }
     bool useDwarfRegNumForCFI() const {
       return DwarfRegNumForCFI;
     }