addBlock(Die, Attribute, 0, Block);
}
+/// isTypeSigned - Return true if the type is signed.
+static bool isTypeSigned(DIType Ty, int *SizeInBits) {
+ if (Ty.isDerivedType())
+ return isTypeSigned(DIDerivedType(Ty).getTypeDerivedFrom(), SizeInBits);
+ if (Ty.isBasicType())
+ if (DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed
+ || DIBasicType(Ty).getEncoding() == dwarf::DW_ATE_signed_char) {
+ *SizeInBits = Ty.getSizeInBits();
+ return true;
+ }
+ return false;
+}
+
/// addConstantValue - Add constant value entry in variable DIE.
bool CompileUnit::addConstantValue(DIE *Die, const MachineOperand &MO,
DIType Ty) {
assert (MO.isImm() && "Invalid machine operand!");
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
- unsigned form = dwarf::DW_FORM_udata;
- switch (Ty.getSizeInBits()) {
- case 8: form = dwarf::DW_FORM_data1; break;
- case 16: form = dwarf::DW_FORM_data2; break;
- case 32: form = dwarf::DW_FORM_data4; break;
- case 64: form = dwarf::DW_FORM_data8; break;
+ int SizeInBits = -1;
+ bool SignedConstant = isTypeSigned(Ty, &SizeInBits);
+ unsigned Form = SignedConstant ? dwarf::DW_FORM_sdata : dwarf::DW_FORM_udata;
+ switch (SizeInBits) {
+ case 8: Form = dwarf::DW_FORM_data1; break;
+ case 16: Form = dwarf::DW_FORM_data2; break;
+ case 32: Form = dwarf::DW_FORM_data4; break;
+ case 64: Form = dwarf::DW_FORM_data8; break;
default: break;
}
-
- DIBasicType BTy(Ty);
- if (BTy.Verify() &&
- (BTy.getEncoding() == dwarf::DW_ATE_signed
- || BTy.getEncoding() == dwarf::DW_ATE_signed_char))
- addSInt(Block, 0, form, MO.getImm());
- else
- addUInt(Block, 0, form, MO.getImm());
+ SignedConstant ? addSInt(Block, 0, Form, MO.getImm())
+ : addUInt(Block, 0, Form, MO.getImm());
addBlock(Die, dwarf::DW_AT_const_value, 0, Block);
return true;