ARM: treat [N x i32] and [N x i64] as AAPCS composite types

[oota-llvm.git] / lib / CodeGen / LexicalScopes.cpp

diff --git a/lib/CodeGen/LexicalScopes.cpp b/lib/CodeGen/LexicalScopes.cpp
index 89c90539f4aaa9b177b381f71c1f93a61ff605ed..9eaf7dafbe9490111d1590b0072914c7eafb68bf 100644 (file)
--- a/lib/CodeGen/LexicalScopes.cpp
+++ b/lib/CodeGen/LexicalScopes.cpp
@@ -119,14 +119,18 @@ LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
   if (D.isLexicalBlockFile())
     Scope = DILexicalBlockFile(Scope).getScope();
 
-  if (IA)
-    return InlinedLexicalScopeMap.lookup(DebugLoc::getFromDILocation(IA));
+  if (IA) {
+    auto I = InlinedLexicalScopeMap.find(std::make_pair(Scope, IA));
+    return I != InlinedLexicalScopeMap.end() ? &I->second : nullptr;
+  }
   return findLexicalScope(Scope);
 }
 
 /// getOrCreateLexicalScope - Find lexical scope for the given DebugLoc. If
 /// not available then create new lexical scope.
 LexicalScope *LexicalScopes::getOrCreateLexicalScope(DebugLoc DL) {
+  if (DL.isUnknown())
+    return nullptr;
   MDNode *Scope = nullptr;
   MDNode *InlinedAt = nullptr;
   DL.getScopeAndInlinedAt(Scope, InlinedAt, MF->getFunction()->getContext());
@@ -161,27 +165,36 @@ LexicalScope *LexicalScopes::getOrCreateRegularScope(MDNode *Scope) {
                               std::forward_as_tuple(Parent, DIDescriptor(Scope),
                                                     nullptr, false)).first;
 
-  if (!Parent && DIDescriptor(Scope).isSubprogram() &&
-      DISubprogram(Scope).describes(MF->getFunction()))
+  if (!Parent) {
+    assert(DIDescriptor(Scope).isSubprogram());
+    assert(DISubprogram(Scope).describes(MF->getFunction()));
+    assert(!CurrentFnLexicalScope);
     CurrentFnLexicalScope = &I->second;
+  }
 
   return &I->second;
 }
 
 /// getOrCreateInlinedScope - Find or create an inlined lexical scope.
-LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *Scope,
+LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *ScopeNode,
                                                      MDNode *InlinedAt) {
-  auto I = LexicalScopeMap.find(InlinedAt);
-  if (I != LexicalScopeMap.end())
+  std::pair<const MDNode*, const MDNode*> P(ScopeNode, InlinedAt);
+  auto I = InlinedLexicalScopeMap.find(P);
+  if (I != InlinedLexicalScopeMap.end())
     return &I->second;
 
-  DebugLoc InlinedLoc = DebugLoc::getFromDILocation(InlinedAt);
-  I = LexicalScopeMap.emplace(std::piecewise_construct,
-                              std::forward_as_tuple(InlinedAt),
-                              std::forward_as_tuple(
-                                  getOrCreateLexicalScope(InlinedLoc),
-                                  DIDescriptor(Scope), InlinedAt, false)).first;
-  InlinedLexicalScopeMap[InlinedLoc] = &I->second;
+  LexicalScope *Parent;
+  DILexicalBlock Scope(ScopeNode);
+  if (Scope.isSubprogram())
+    Parent = getOrCreateLexicalScope(DebugLoc::getFromDILocation(InlinedAt));
+  else
+    Parent = getOrCreateInlinedScope(Scope.getContext(), InlinedAt);
+
+  I = InlinedLexicalScopeMap.emplace(std::piecewise_construct,
+                                     std::forward_as_tuple(P),
+                                     std::forward_as_tuple(Parent, Scope,
+                                                           InlinedAt, false))
+          .first;
   return &I->second;
 }
 
@@ -192,21 +205,21 @@ LexicalScope *LexicalScopes::getOrCreateAbstractScope(const MDNode *N) {
   DIDescriptor Scope(N);
   if (Scope.isLexicalBlockFile())
     Scope = DILexicalBlockFile(Scope).getScope();
-  auto I = AbstractScopeMap.find(N);
+  auto I = AbstractScopeMap.find(Scope);
   if (I != AbstractScopeMap.end())
     return &I->second;
 
   LexicalScope *Parent = nullptr;
   if (Scope.isLexicalBlock()) {
-    DILexicalBlock DB(N);
+    DILexicalBlock DB(Scope);
     DIDescriptor ParentDesc = DB.getContext();
     Parent = getOrCreateAbstractScope(ParentDesc);
   }
   I = AbstractScopeMap.emplace(std::piecewise_construct,
-                               std::forward_as_tuple(N),
-                               std::forward_as_tuple(Parent, DIDescriptor(N),
+                               std::forward_as_tuple(Scope),
+                               std::forward_as_tuple(Parent, Scope,
                                                      nullptr, true)).first;
-  if (DIDescriptor(N).isSubprogram())
+  if (Scope.isSubprogram())
     AbstractScopesList.push_back(&I->second);
   return &I->second;
 }
@@ -267,7 +280,7 @@ void LexicalScopes::assignInstructionRanges(
 /// have machine instructions that belong to lexical scope identified by
 /// DebugLoc.
 void LexicalScopes::getMachineBasicBlocks(
-    DebugLoc DL, SmallPtrSet<const MachineBasicBlock *, 4> &MBBs) {
+    DebugLoc DL, SmallPtrSetImpl<const MachineBasicBlock *> &MBBs) {
   MBBs.clear();
   LexicalScope *Scope = getOrCreateLexicalScope(DL);
   if (!Scope)