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1. Use null for serialized empty strings.

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2. Allow for user defined debug descriptors.
3. Allow for user augmented fields on debug descriptors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26760 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-03-14 18:37:57 +00:00
parent cec12a5c30
commit 2140798cc4
1 changed files with 17 additions and 9 deletions
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26
lib/CodeGen/MachineDebugInfo.cpp
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@ -270,7 +270,11 @@ public:
Elements.push_back(ConstantBool::get(Field));
}
virtual void Apply(std::string &Field) {
Elements.push_back(SR.getString(Field));
if (Field.empty()) {
Elements.push_back(NULL);
} else {
Elements.push_back(SR.getString(Field));
}
}
virtual void Apply(DebugInfoDesc *&Field) {
GlobalVariable *GV = NULL;
@ -417,7 +421,7 @@ public:
}
virtual void Apply(std::string &Field) {
Constant *C = CI->getOperand(I++);
IsValid = IsValid && isStringValue(C);
IsValid = IsValid && (!C || isStringValue(C));
}
virtual void Apply(DebugInfoDesc *&Field) {
// FIXME - Prepare the correct descriptor.
@ -1086,11 +1090,13 @@ DebugInfoDesc *DIDeserializer::Deserialize(GlobalVariable *GV) {
// Create an empty instance of the correct sort.
Slot = DebugInfoDesc::DescFactory(Tag);
assert(Slot && "Unknown Tag");
// Deserialize the fields.
DIDeserializeVisitor DRAM(*this, GV);
DRAM.ApplyToFields(Slot);
// If not a user defined descriptor.
if (Slot) {
// Deserialize the fields.
DIDeserializeVisitor DRAM(*this, GV);
DRAM.ApplyToFields(Slot);
}
return Slot;
}
@ -1238,7 +1244,9 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
// Construct an empty DebugInfoDesc.
DebugInfoDesc *DD = DebugInfoDesc::DescFactory(Tag);
if (!DD) return false;
// Allow for user defined descriptors.
if (!DD) return true;
// Get the initializer constant.
ConstantStruct *CI = cast<ConstantStruct>(GV->getInitializer());
@ -1255,8 +1263,8 @@ bool DIVerifier::Verify(GlobalVariable *GV) {
Slot = CTAM.getCount();
}
// Field count must equal operand count.
if (Slot != N) {
// Field count must be at most equal operand count.
if (Slot > N) {
delete DD;
return false;
}