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-rw-r--r--lib/CodeGen/LexicalScopes.cpp105
1 files changed, 46 insertions, 59 deletions
diff --git a/lib/CodeGen/LexicalScopes.cpp b/lib/CodeGen/LexicalScopes.cpp
index 9eaf7da..d6998d6 100644
--- a/lib/CodeGen/LexicalScopes.cpp
+++ b/lib/CodeGen/LexicalScopes.cpp
@@ -59,11 +59,11 @@ void LexicalScopes::extractLexicalScopes(
for (const auto &MBB : *MF) {
const MachineInstr *RangeBeginMI = nullptr;
const MachineInstr *PrevMI = nullptr;
- DebugLoc PrevDL;
+ const MDLocation *PrevDL = nullptr;
for (const auto &MInsn : MBB) {
// Check if instruction has valid location information.
- const DebugLoc MIDL = MInsn.getDebugLoc();
- if (MIDL.isUnknown()) {
+ const MDLocation *MIDL = MInsn.getDebugLoc();
+ if (!MIDL) {
PrevMI = &MInsn;
continue;
}
@@ -96,7 +96,7 @@ void LexicalScopes::extractLexicalScopes(
}
// Create last instruction range.
- if (RangeBeginMI && PrevMI && !PrevDL.isUnknown()) {
+ if (RangeBeginMI && PrevMI && PrevDL) {
InsnRange R(RangeBeginMI, PrevMI);
MIRanges.push_back(R);
MI2ScopeMap[RangeBeginMI] = getOrCreateLexicalScope(PrevDL);
@@ -106,20 +106,17 @@ void LexicalScopes::extractLexicalScopes(
/// findLexicalScope - Find lexical scope, either regular or inlined, for the
/// given DebugLoc. Return NULL if not found.
-LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
- MDNode *Scope = nullptr;
- MDNode *IA = nullptr;
- DL.getScopeAndInlinedAt(Scope, IA, MF->getFunction()->getContext());
+LexicalScope *LexicalScopes::findLexicalScope(const MDLocation *DL) {
+ MDLocalScope *Scope = DL->getScope();
if (!Scope)
return nullptr;
// The scope that we were created with could have an extra file - which
// isn't what we care about in this case.
- DIDescriptor D = DIDescriptor(Scope);
- if (D.isLexicalBlockFile())
- Scope = DILexicalBlockFile(Scope).getScope();
+ if (auto *File = dyn_cast<MDLexicalBlockFile>(Scope))
+ Scope = File->getScope();
- if (IA) {
+ if (auto *IA = DL->getInlinedAt()) {
auto I = InlinedLexicalScopeMap.find(std::make_pair(Scope, IA));
return I != InlinedLexicalScopeMap.end() ? &I->second : nullptr;
}
@@ -128,46 +125,39 @@ LexicalScope *LexicalScopes::findLexicalScope(DebugLoc DL) {
/// 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());
-
- if (InlinedAt) {
+LexicalScope *LexicalScopes::getOrCreateLexicalScope(const MDLocalScope *Scope,
+ const MDLocation *IA) {
+ if (IA) {
// Create an abstract scope for inlined function.
getOrCreateAbstractScope(Scope);
// Create an inlined scope for inlined function.
- return getOrCreateInlinedScope(Scope, InlinedAt);
+ return getOrCreateInlinedScope(Scope, IA);
}
return getOrCreateRegularScope(Scope);
}
/// getOrCreateRegularScope - Find or create a regular lexical scope.
-LexicalScope *LexicalScopes::getOrCreateRegularScope(MDNode *Scope) {
- DIDescriptor D = DIDescriptor(Scope);
- if (D.isLexicalBlockFile()) {
- Scope = DILexicalBlockFile(Scope).getScope();
- D = DIDescriptor(Scope);
- }
+LexicalScope *
+LexicalScopes::getOrCreateRegularScope(const MDLocalScope *Scope) {
+ if (auto *File = dyn_cast<MDLexicalBlockFile>(Scope))
+ Scope = File->getScope();
auto I = LexicalScopeMap.find(Scope);
if (I != LexicalScopeMap.end())
return &I->second;
+ // FIXME: Should the following dyn_cast be MDLexicalBlock?
LexicalScope *Parent = nullptr;
- if (D.isLexicalBlock())
- Parent = getOrCreateLexicalScope(DebugLoc::getFromDILexicalBlock(Scope));
+ if (auto *Block = dyn_cast<MDLexicalBlockBase>(Scope))
+ Parent = getOrCreateLexicalScope(Block->getScope());
I = LexicalScopeMap.emplace(std::piecewise_construct,
std::forward_as_tuple(Scope),
- std::forward_as_tuple(Parent, DIDescriptor(Scope),
- nullptr, false)).first;
+ std::forward_as_tuple(Parent, Scope, nullptr,
+ false)).first;
if (!Parent) {
- assert(DIDescriptor(Scope).isSubprogram());
- assert(DISubprogram(Scope).describes(MF->getFunction()));
+ assert(cast<MDSubprogram>(Scope)->describes(MF->getFunction()));
assert(!CurrentFnLexicalScope);
CurrentFnLexicalScope = &I->second;
}
@@ -176,19 +166,19 @@ LexicalScope *LexicalScopes::getOrCreateRegularScope(MDNode *Scope) {
}
/// getOrCreateInlinedScope - Find or create an inlined lexical scope.
-LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *ScopeNode,
- MDNode *InlinedAt) {
- std::pair<const MDNode*, const MDNode*> P(ScopeNode, InlinedAt);
+LexicalScope *
+LexicalScopes::getOrCreateInlinedScope(const MDLocalScope *Scope,
+ const MDLocation *InlinedAt) {
+ std::pair<const MDLocalScope *, const MDLocation *> P(Scope, InlinedAt);
auto I = InlinedLexicalScopeMap.find(P);
if (I != InlinedLexicalScopeMap.end())
return &I->second;
LexicalScope *Parent;
- DILexicalBlock Scope(ScopeNode);
- if (Scope.isSubprogram())
- Parent = getOrCreateLexicalScope(DebugLoc::getFromDILocation(InlinedAt));
+ if (auto *Block = dyn_cast<MDLexicalBlockBase>(Scope))
+ Parent = getOrCreateInlinedScope(Block->getScope(), InlinedAt);
else
- Parent = getOrCreateInlinedScope(Scope.getContext(), InlinedAt);
+ Parent = getOrCreateLexicalScope(InlinedAt);
I = InlinedLexicalScopeMap.emplace(std::piecewise_construct,
std::forward_as_tuple(P),
@@ -199,27 +189,26 @@ LexicalScope *LexicalScopes::getOrCreateInlinedScope(MDNode *ScopeNode,
}
/// getOrCreateAbstractScope - Find or create an abstract lexical scope.
-LexicalScope *LexicalScopes::getOrCreateAbstractScope(const MDNode *N) {
- assert(N && "Invalid Scope encoding!");
+LexicalScope *
+LexicalScopes::getOrCreateAbstractScope(const MDLocalScope *Scope) {
+ assert(Scope && "Invalid Scope encoding!");
- DIDescriptor Scope(N);
- if (Scope.isLexicalBlockFile())
- Scope = DILexicalBlockFile(Scope).getScope();
+ if (auto *File = dyn_cast<MDLexicalBlockFile>(Scope))
+ Scope = File->getScope();
auto I = AbstractScopeMap.find(Scope);
if (I != AbstractScopeMap.end())
return &I->second;
+ // FIXME: Should the following isa be MDLexicalBlock?
LexicalScope *Parent = nullptr;
- if (Scope.isLexicalBlock()) {
- DILexicalBlock DB(Scope);
- DIDescriptor ParentDesc = DB.getContext();
- Parent = getOrCreateAbstractScope(ParentDesc);
- }
+ if (auto *Block = dyn_cast<MDLexicalBlockBase>(Scope))
+ Parent = getOrCreateAbstractScope(Block->getScope());
+
I = AbstractScopeMap.emplace(std::piecewise_construct,
std::forward_as_tuple(Scope),
std::forward_as_tuple(Parent, Scope,
nullptr, true)).first;
- if (Scope.isSubprogram())
+ if (isa<MDSubprogram>(Scope))
AbstractScopesList.push_back(&I->second);
return &I->second;
}
@@ -280,7 +269,7 @@ void LexicalScopes::assignInstructionRanges(
/// have machine instructions that belong to lexical scope identified by
/// DebugLoc.
void LexicalScopes::getMachineBasicBlocks(
- DebugLoc DL, SmallPtrSetImpl<const MachineBasicBlock *> &MBBs) {
+ const MDLocation *DL, SmallPtrSetImpl<const MachineBasicBlock *> &MBBs) {
MBBs.clear();
LexicalScope *Scope = getOrCreateLexicalScope(DL);
if (!Scope)
@@ -303,7 +292,7 @@ void LexicalScopes::getMachineBasicBlocks(
/// dominates - Return true if DebugLoc's lexical scope dominates at least one
/// machine instruction's lexical scope in a given machine basic block.
-bool LexicalScopes::dominates(DebugLoc DL, MachineBasicBlock *MBB) {
+bool LexicalScopes::dominates(const MDLocation *DL, MachineBasicBlock *MBB) {
LexicalScope *Scope = getOrCreateLexicalScope(DL);
if (!Scope)
return false;
@@ -315,12 +304,10 @@ bool LexicalScopes::dominates(DebugLoc DL, MachineBasicBlock *MBB) {
bool Result = false;
for (MachineBasicBlock::iterator I = MBB->begin(), E = MBB->end(); I != E;
++I) {
- DebugLoc IDL = I->getDebugLoc();
- if (IDL.isUnknown())
- continue;
- if (LexicalScope *IScope = getOrCreateLexicalScope(IDL))
- if (Scope->dominates(IScope))
- return true;
+ if (const MDLocation *IDL = I->getDebugLoc())
+ if (LexicalScope *IScope = getOrCreateLexicalScope(IDL))
+ if (Scope->dominates(IScope))
+ return true;
}
return Result;
}
generated by cgit v1.1 at 2024-04-28 07:37:55 +0000