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Split out filename & directory from DIFile to start generalizing over DIScopes

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This is the first step to making all DIScopes have a common metadata prefix (so
that things (using directives, for example) that can appear in any scope can be
added to that common prefix). DIFile is itself a DIScope so the common prefix
of all DIScopes cannot be a DIFile - instead it's the raw filename/directory
name pair.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177239 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie
2013-03-17 21:13:55 +00:00
parent 14de1a87ce
commit b4cf0ab22b
87 changed files with 330 additions and 220 deletions
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34
lib/IR/DebugInfo.cpp
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@ -66,18 +66,28 @@ bool DIDescriptor::Verify() const {
DITemplateValueParameter(DbgNode).Verify());
}
StringRef
DIDescriptor::getStringField(unsigned Elt) const {
if (DbgNode == 0)
return StringRef();
static Value *getField(const MDNode *DbgNode, unsigned Elt) {
if (DbgNode == 0 || Elt >= DbgNode->getNumOperands())
return 0;
return DbgNode->getOperand(Elt);
}
if (Elt < DbgNode->getNumOperands())
if (MDString *MDS = dyn_cast_or_null<MDString>(DbgNode->getOperand(Elt)))
return MDS->getString();
static const MDNode *getNodeField(const MDNode *DbgNode, unsigned Elt) {
if (const MDNode *R = dyn_cast_or_null<MDNode>(getField(DbgNode, Elt)))
return R;
return 0;
}
static StringRef getStringField(const MDNode *DbgNode, unsigned Elt) {
if (MDString *MDS = dyn_cast_or_null<MDString>(getField(DbgNode, Elt)))
return MDS->getString();
return StringRef();
}
StringRef DIDescriptor::getStringField(unsigned Elt) const {
return ::getStringField(DbgNode, Elt);
}
uint64_t DIDescriptor::getUInt64Field(unsigned Elt) const {
if (DbgNode == 0)
return 0;
@ -531,7 +541,7 @@ bool DINameSpace::Verify() const {
/// \brief Verify that the file descriptor is well formed.
bool DIFile::Verify() const {
return isFile() && DbgNode->getNumOperands() == 3;
return isFile() && DbgNode->getNumOperands() == 2;
}
/// \brief Verify that the enumerator descriptor is well formed.
@ -661,9 +671,7 @@ StringRef DIScope::getFilename() const {
return DINameSpace(DbgNode).getFilename();
if (isType())
return DIType(DbgNode).getFilename();
if (isFile())
return DIFile(DbgNode).getFilename();
llvm_unreachable("Invalid DIScope!");
return ::getStringField(getNodeField(DbgNode, 1), 0);
}
StringRef DIScope::getDirectory() const {
@ -681,9 +689,7 @@ StringRef DIScope::getDirectory() const {
return DINameSpace(DbgNode).getDirectory();
if (isType())
return DIType(DbgNode).getDirectory();
if (isFile())
return DIFile(DbgNode).getDirectory();
llvm_unreachable("Invalid DIScope!");
return ::getStringField(getNodeField(DbgNode, 1), 1);
}
DIArray DICompileUnit::getEnumTypes() const {