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DebugInfo: Gut DIType and subclasses

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Continuing PR23080, gut `DIType` and its various subclasses, leaving
behind thin wrappers around the pointer types in the new debug info
hierarchy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@235064 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-04-16 01:01:28 +00:00
parent 782028b4bc
commit 7f76d2954e
10 changed files with 182 additions and 241 deletions
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22
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@@ -141,7 +141,7 @@ bool DbgVariable::isBlockByrefVariable() const {
}
DIType DbgVariable::getType() const {
DIType Ty = Var->getType().resolve(DD->getTypeIdentifierMap());
MDType *Ty = Var->getType().resolve(DD->getTypeIdentifierMap());
// FIXME: isBlockByrefVariable should be reformulated in terms of complex
// addresses instead.
if (Ty->isBlockByrefStruct()) {
@@ -169,17 +169,17 @@ DIType DbgVariable::getType() const {
have a DW_AT_location that tells the debugger how to unwind through
the pointers and __Block_byref_x_VarName struct to find the actual
value of the variable. The function addBlockByrefType does this. */
DIType subType = Ty;
uint16_t tag = Ty.getTag();
MDType *subType = Ty;
uint16_t tag = Ty->getTag();
if (tag == dwarf::DW_TAG_pointer_type)
subType = resolve(DITypeRef(cast<MDDerivedType>(Ty)->getBaseType()));
DIArray Elements(cast<MDCompositeTypeBase>(subType)->getElements());
auto Elements = cast<MDCompositeTypeBase>(subType)->getElements();
for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
DIDerivedType DT = cast<MDDerivedTypeBase>(Elements[i]);
if (getName() == DT.getName())
return (resolve(DT.getTypeDerivedFrom()));
auto *DT = cast<MDDerivedTypeBase>(Elements[i]);
if (getName() == DT->getName())
return resolve(DITypeRef(DT->getBaseType()));
}
}
return Ty;
@@ -306,8 +306,8 @@ bool DwarfDebug::isSubprogramContext(const MDNode *Context) {
return false;
if (isa<MDSubprogram>(Context))
return true;
if (DIType T = dyn_cast<MDType>(Context))
return isSubprogramContext(resolve(T.getContext()));
if (auto *T = dyn_cast<MDType>(Context))
return isSubprogramContext(resolve(T->getScope()));
return false;
}
@@ -461,13 +461,13 @@ void DwarfDebug::beginModule() {
for (DIType Ty : CUNode->getEnumTypes()) {
// The enum types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
DIType UniqueTy = cast<MDType>(resolve(Ty.getRef()));
DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
CU.getOrCreateTypeDIE(UniqueTy);
}
for (DIType Ty : CUNode->getRetainedTypes()) {
// The retained types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
DIType UniqueTy = cast<MDType>(resolve(Ty.getRef()));
DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
CU.getOrCreateTypeDIE(UniqueTy);
}
// Emit imported_modules last so that the relevant context is already