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DebugInfo: Gut DIVariable and DIGlobalVariable

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Gut all the non-pointer API from the variable wrappers, except an
implicit conversion from `DIGlobalVariable` to `DIDescriptor`.  Note
that if you're updating out-of-tree code, `DIVariable` wraps
`MDLocalVariable` (`MDVariable` is a common base class shared with
`MDGlobalVariable`).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234840 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-04-14 02:22:36 +00:00
parent 4edb309c27
commit 355ec009e5
14 changed files with 74 additions and 111 deletions
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lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+17 -17
View File
@@ -103,44 +103,44 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(DIGlobalVariable GV) {
assert(GV);
DIScope GVContext = GV.getContext();
DIType GTy = DD->resolve(GV.getType());
DIScope GVContext = GV->getScope();
DIType GTy = DD->resolve(GV->getType());
// Construct the context before querying for the existence of the DIE in
// case such construction creates the DIE.
DIE *ContextDIE = getOrCreateContextDIE(GVContext);
// Add to map.
DIE *VariableDIE = &createAndAddDIE(GV.getTag(), *ContextDIE, GV);
DIE *VariableDIE = &createAndAddDIE(GV->getTag(), *ContextDIE, GV);
DIScope DeclContext;
if (DIDerivedType SDMDecl = GV.getStaticDataMemberDeclaration()) {
if (DIDerivedType SDMDecl = GV->getStaticDataMemberDeclaration()) {
DeclContext = resolve(SDMDecl.getContext());
assert(SDMDecl.isStaticMember() && "Expected static member decl");
assert(GV.isDefinition());
assert(GV->isDefinition());
// We need the declaration DIE that is in the static member's class.
DIE *VariableSpecDIE = getOrCreateStaticMemberDIE(SDMDecl);
addDIEEntry(*VariableDIE, dwarf::DW_AT_specification, *VariableSpecDIE);
} else {
DeclContext = GV.getContext();
DeclContext = GV->getScope();
// Add name and type.
addString(*VariableDIE, dwarf::DW_AT_name, GV.getDisplayName());
addString(*VariableDIE, dwarf::DW_AT_name, GV->getDisplayName());
addType(*VariableDIE, GTy);
// Add scoping info.
if (!GV.isLocalToUnit())
if (!GV->isLocalToUnit())
addFlag(*VariableDIE, dwarf::DW_AT_external);
// Add line number info.
addSourceLine(*VariableDIE, GV);
}
if (!GV.isDefinition())
if (!GV->isDefinition())
addFlag(*VariableDIE, dwarf::DW_AT_declaration);
// Add location.
bool addToAccelTable = false;
if (auto *Global = dyn_cast_or_null<GlobalVariable>(GV.getConstant())) {
if (auto *Global = dyn_cast_or_null<GlobalVariable>(GV->getVariable())) {
addToAccelTable = true;
DIELoc *Loc = new (DIEValueAllocator) DIELoc();
const MCSymbol *Sym = Asm->getSymbol(Global);
@@ -173,11 +173,11 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(DIGlobalVariable GV) {
}
addBlock(*VariableDIE, dwarf::DW_AT_location, Loc);
addLinkageName(*VariableDIE, GV.getLinkageName());
addLinkageName(*VariableDIE, GV->getLinkageName());
} else if (const ConstantInt *CI =
dyn_cast_or_null<ConstantInt>(GV.getConstant())) {
dyn_cast_or_null<ConstantInt>(GV->getVariable())) {
addConstantValue(*VariableDIE, CI, GTy);
} else if (const ConstantExpr *CE = getMergedGlobalExpr(GV.getConstant())) {
} else if (const ConstantExpr *CE = getMergedGlobalExpr(GV->getVariable())) {
addToAccelTable = true;
// GV is a merged global.
DIELoc *Loc = new (DIEValueAllocator) DIELoc();
@@ -194,15 +194,15 @@ DIE *DwarfCompileUnit::getOrCreateGlobalVariableDIE(DIGlobalVariable GV) {
}
if (addToAccelTable) {
DD->addAccelName(GV.getName(), *VariableDIE);
DD->addAccelName(GV->getName(), *VariableDIE);
// If the linkage name is different than the name, go ahead and output
// that as well into the name table.
if (GV.getLinkageName() != "" && GV.getName() != GV.getLinkageName())
DD->addAccelName(GV.getLinkageName(), *VariableDIE);
if (GV->getLinkageName() != "" && GV->getName() != GV->getLinkageName())
DD->addAccelName(GV->getLinkageName(), *VariableDIE);
}
addGlobalName(GV.getName(), *VariableDIE, DeclContext);
addGlobalName(GV->getName(), *VariableDIE, DeclContext);
return VariableDIE;
}