From 47290de5dbab6a784afbbea16dd3dc895e262ccb Mon Sep 17 00:00:00 2001
From: David Blaikie <dblaikie@gmail.com>
Date: Mon, 12 May 2014 23:53:03 +0000
Subject: Revert "DebugInfo: Include lexical scopes in inlined subroutines."

This reverts commit r208506.

Some inlined subroutine scopes appear to be missing with this change.
Reverting while I investigate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208642 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/LexicalScopes.cpp | 40 ++++++++++++----------------------------
 1 file changed, 12 insertions(+), 28 deletions(-)

(limited to 'lib/CodeGen/LexicalScopes.cpp')

diff --git a/lib/CodeGen/LexicalScopes.cpp b/lib/CodeGen/LexicalScopes.cpp
index 8bf69ff630..46f864ca55 100644
--- a/lib/CodeGen/LexicalScopes.cpp
+++ b/lib/CodeGen/LexicalScopes.cpp
@@ -104,14 +104,6 @@ void LexicalScopes::extractLexicalScopes(
   }
 }
 
-LexicalScope *LexicalScopes::findInlinedScope(DebugLoc DL) {
-  MDNode *Scope = nullptr;
-  MDNode *IA = nullptr;
-  DL.getScopeAndInlinedAt(Scope, IA, MF->getFunction()->getContext());
-  auto I = InlinedLexicalScopeMap.find(std::make_pair(Scope, IA));
-  return I != InlinedLexicalScopeMap.end() ? &I->second : nullptr;
-}
-
 /// findLexicalScope - Find lexical scope, either regular or inlined, for the
 /// given DebugLoc. Return NULL if not found.
 LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
@@ -127,10 +119,8 @@ LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
   if (D.isLexicalBlockFile())
     Scope = DILexicalBlockFile(Scope).getScope();
 
-  if (IA) {
-    auto I = InlinedLexicalScopeMap.find(std::make_pair(Scope, IA));
-    return I != InlinedLexicalScopeMap.end() ? &I->second : nullptr;
-  }
+  if (IA)
+    return InlinedLexicalScopeMap.lookup(DebugLoc::getFromDILocation(IA));
   return findLexicalScope(Scope);
 }
 
@@ -180,27 +170,21 @@ LexicalScope *LexicalScopes::getOrCreateRegularScope(MDNode *Scope) {
 }
 
 /// getOrCreateInlinedScope - Find or create an inlined lexical scope.
-LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *ScopeNode,
+LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *Scope,
                                                      MDNode *InlinedAt) {
-  std::pair<const MDNode*, const MDNode*> P(ScopeNode, InlinedAt);
-  auto I = InlinedLexicalScopeMap.find(P);
-  if (I != InlinedLexicalScopeMap.end())
+  auto I = LexicalScopeMap.find(InlinedAt);
+  if (I != LexicalScopeMap.end())
     return &I->second;
 
-  LexicalScope *Parent;
-  DILexicalBlock Scope(ScopeNode);
-  if (Scope.isLexicalBlock()) {
-    DILexicalBlock PB(Scope.getContext());
-    Parent = getOrCreateInlinedScope(PB, InlinedAt);
-  } else
-    Parent = getOrCreateLexicalScope(DebugLoc::getFromDILocation(InlinedAt));
-
+  DebugLoc InlinedLoc = DebugLoc::getFromDILocation(InlinedAt);
   // FIXME: Use forward_as_tuple instead of make_tuple, once MSVC2012
   // compatibility is no longer required.
-  I = InlinedLexicalScopeMap.emplace(std::piecewise_construct,
-                                     std::make_tuple(P),
-                                     std::make_tuple(Parent, Scope, InlinedAt,
-                                                     false)).first;
+  I = LexicalScopeMap.emplace(
+                          std::piecewise_construct, std::make_tuple(InlinedAt),
+                          std::make_tuple(getOrCreateLexicalScope(InlinedLoc),
+                                          DIDescriptor(Scope), InlinedAt,
+                                          false)).first;
+  InlinedLexicalScopeMap[InlinedLoc] = &I->second;
   return &I->second;
 }
 
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