From a26eae64ddf607549f9e47046d46ea5b9ec648b4 Mon Sep 17 00:00:00 2001
From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Thu, 30 Apr 2009 23:22:31 +0000
Subject: Make DebugLoc independent of DwarfWriter.

-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/DebugLoc.h | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

(limited to 'include/llvm/CodeGen/DebugLoc.h')

diff --git a/include/llvm/CodeGen/DebugLoc.h b/include/llvm/CodeGen/DebugLoc.h
index d5ad9dc..77e6733 100644
--- a/include/llvm/CodeGen/DebugLoc.h
+++ b/include/llvm/CodeGen/DebugLoc.h
@@ -19,17 +19,20 @@
 #include <vector>
 
 namespace llvm {
+  class GlobalVariable;
 
   /// DebugLocTuple - Debug location tuple of filename id, line and column.
   ///
   struct DebugLocTuple {
-    unsigned Src, Line, Col;
+    GlobalVariable *CompileUnit;
+    unsigned Line, Col;
 
-    DebugLocTuple(unsigned s, unsigned l, unsigned c)
-      : Src(s), Line(l), Col(c) {};
+    DebugLocTuple(GlobalVariable *v, unsigned l, unsigned c)
+      : CompileUnit(v), Line(l), Col(c) {};
 
     bool operator==(const DebugLocTuple &DLT) const {
-      return Src == DLT.Src && Line == DLT.Line && Col == DLT.Col;
+      return CompileUnit == DLT.CompileUnit &&
+             Line == DLT.Line && Col == DLT.Col;
     }
     bool operator!=(const DebugLocTuple &DLT) const {
       return !(*this == DLT);
@@ -60,20 +63,20 @@ namespace llvm {
   // Partially specialize DenseMapInfo for DebugLocTyple.
   template<>  struct DenseMapInfo<DebugLocTuple> {
     static inline DebugLocTuple getEmptyKey() {
-      return DebugLocTuple(~0U, ~0U, ~0U);
+      return DebugLocTuple(0, ~0U, ~0U);
     }
     static inline DebugLocTuple getTombstoneKey() {
-      return DebugLocTuple(~1U, ~1U, ~1U);
+      return DebugLocTuple((GlobalVariable*)~1U, ~1U, ~1U);
     }
     static unsigned getHashValue(const DebugLocTuple &Val) {
-      return DenseMapInfo<unsigned>::getHashValue(Val.Src) ^
+      return DenseMapInfo<GlobalVariable*>::getHashValue(Val.CompileUnit) ^
              DenseMapInfo<unsigned>::getHashValue(Val.Line) ^
              DenseMapInfo<unsigned>::getHashValue(Val.Col);
     }
     static bool isEqual(const DebugLocTuple &LHS, const DebugLocTuple &RHS) {
-      return LHS.Src  == RHS.Src &&
-             LHS.Line == RHS.Line &&
-             LHS.Col  == RHS.Col;
+      return LHS.CompileUnit == RHS.CompileUnit &&
+             LHS.Line        == RHS.Line &&
+             LHS.Col         == RHS.Col;
     }
 
     static bool isPod() { return true; }
-- 
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