Revert the series of commits starting with r166578 which introduced the

[oota-llvm.git] / lib / VMCore / DebugLoc.cpp

diff --git a/lib/VMCore/DebugLoc.cpp b/lib/VMCore/DebugLoc.cpp
index 4ff6b2cd80e87da65852b6388a5f5c2d420a8718..c6a30536e69f96345f233caa269aa55d88d8793f 100644 (file)
--- a/lib/VMCore/DebugLoc.cpp
+++ b/lib/VMCore/DebugLoc.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Support/DebugLoc.h"
+#include "llvm/DebugInfo.h"
 #include "llvm/ADT/DenseMapInfo.h"
 #include "LLVMContextImpl.h"
 using namespace llvm;
@@ -104,7 +105,7 @@ MDNode *DebugLoc::getAsMDNode(const LLVMContext &Ctx) const {
   assert(Scope && "If scope is null, this should be isUnknown()");
   
   LLVMContext &Ctx2 = Scope->getContext();
-  const Type *Int32 = Type::getInt32Ty(Ctx2);
+  Type *Int32 = Type::getInt32Ty(Ctx2);
   Value *Elts[] = {
     ConstantInt::get(Int32, getLine()), ConstantInt::get(Int32, getCol()),
     Scope, IA
@@ -114,34 +115,19 @@ MDNode *DebugLoc::getAsMDNode(const LLVMContext &Ctx) const {
 
 /// getFromDILocation - Translate the DILocation quad into a DebugLoc.
 DebugLoc DebugLoc::getFromDILocation(MDNode *N) {
-  if (N == 0 || N->getNumOperands() != 4) return DebugLoc();
-  
-  MDNode *Scope = dyn_cast_or_null<MDNode>(N->getOperand(2));
+  DILocation Loc(N);
+  MDNode *Scope = Loc.getScope();
   if (Scope == 0) return DebugLoc();
-  
-  unsigned LineNo = 0, ColNo = 0;
-  if (ConstantInt *Line = dyn_cast_or_null<ConstantInt>(N->getOperand(0)))
-    LineNo = Line->getZExtValue();
-  if (ConstantInt *Col = dyn_cast_or_null<ConstantInt>(N->getOperand(1)))
-    ColNo = Col->getZExtValue();
-  
-  return get(LineNo, ColNo, Scope, dyn_cast_or_null<MDNode>(N->getOperand(3)));
+  return get(Loc.getLineNumber(), Loc.getColumnNumber(), Scope,
+             Loc.getOrigLocation());
 }
 
 /// getFromDILexicalBlock - Translate the DILexicalBlock into a DebugLoc.
 DebugLoc DebugLoc::getFromDILexicalBlock(MDNode *N) {
-  if (N == 0 || N->getNumOperands() < 3) return DebugLoc();
-  
-  MDNode *Scope = dyn_cast_or_null<MDNode>(N->getOperand(1));
+  DILexicalBlock LexBlock(N);
+  MDNode *Scope = LexBlock.getContext();
   if (Scope == 0) return DebugLoc();
-  
-  unsigned LineNo = 0, ColNo = 0;
-  if (ConstantInt *Line = dyn_cast_or_null<ConstantInt>(N->getOperand(2)))
-    LineNo = Line->getZExtValue();
-  if (ConstantInt *Col = dyn_cast_or_null<ConstantInt>(N->getOperand(3)))
-    ColNo = Col->getZExtValue();
-  
-  return get(LineNo, ColNo, Scope, NULL);
+  return get(LexBlock.getLineNumber(), LexBlock.getColumnNumber(), Scope, NULL);
 }
 
 void DebugLoc::dump(const LLVMContext &Ctx) const {
@@ -164,23 +150,8 @@ void DebugLoc::dump(const LLVMContext &Ctx) const {
 // DenseMap specialization
 //===----------------------------------------------------------------------===//
 
-DebugLoc DenseMapInfo<DebugLoc>::getEmptyKey() {
-  return DebugLoc::getEmptyKey();
-}
-
-DebugLoc DenseMapInfo<DebugLoc>::getTombstoneKey() {
-  return DebugLoc::getTombstoneKey();
-}
-
 unsigned DenseMapInfo<DebugLoc>::getHashValue(const DebugLoc &Key) {
-  FoldingSetNodeID ID;
-  ID.AddInteger(Key.LineCol);
-  ID.AddInteger(Key.ScopeIdx);
-  return ID.ComputeHash();
-}
-
-bool DenseMapInfo<DebugLoc>::isEqual(const DebugLoc &LHS, const DebugLoc &RHS) {
-  return LHS == RHS;
+  return static_cast<unsigned>(hash_combine(Key.LineCol, Key.ScopeIdx));
 }
 
 //===----------------------------------------------------------------------===//
@@ -240,7 +211,7 @@ int LLVMContextImpl::getOrAddScopeInlinedAtIdxEntry(MDNode *Scope, MDNode *IA,
 /// deleted - The MDNode this is pointing to got deleted, so this pointer needs
 /// to drop to null and we need remove our entry from the DenseMap.
 void DebugRecVH::deleted() {
-  // If this is a  non-canonical reference, just drop the value to null, we know
+  // If this is a non-canonical reference, just drop the value to null, we know
   // it doesn't have a map entry.
   if (Idx == 0) {
     setValPtr(0);