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Right size integer values before emitting.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25489 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-01-20 21:02:36 +00:00
parent b78e8382e8
commit 4002017e68
2 changed files with 26 additions and 9 deletions
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3
include/llvm/CodeGen/DwarfWriter.h
View File

@ -721,7 +721,8 @@ namespace llvm {
/// AddInt - Add a simple integer attribute data and value.
///
void AddInt(unsigned Attribute, unsigned Form, int Integer);
void AddInt(unsigned Attribute, unsigned Form,
int Integer, bool IsSigned = false);
/// AddString - Add a std::string attribute data and value.
///

32
lib/CodeGen/DwarfWriter.cpp
View File

@ -673,10 +673,12 @@ void DIEAbbrev::Emit(const DwarfWriter &DW) const {
///
void DIEInteger::EmitValue(const DwarfWriter &DW, unsigned Form) const {
switch (Form) {
case DW_FORM_data1: // Fall thru
case DW_FORM_flag: DW.EmitByte(Integer); break;
case DW_FORM_data2: DW.EmitShort(Integer); break;
case DW_FORM_data4: DW.EmitLong(Integer); break;
case DW_FORM_flag: // Fall thru
case DW_FORM_data1: DW.EmitByte(Integer); break;
case DW_FORM_data2: DW.EmitShort(Integer); break;
case DW_FORM_data4: DW.EmitLong(Integer); break;
case DW_FORM_udata: DW.EmitULEB128Bytes(Integer); break;
case DW_FORM_sdata: DW.EmitSLEB128Bytes(Integer); break;
default: assert(0 && "DIE Value form not supported yet"); break;
}
}
@ -689,6 +691,8 @@ unsigned DIEInteger::SizeOf(const DwarfWriter &DW, unsigned Form) const {
case DW_FORM_data1: return sizeof(int8_t);
case DW_FORM_data2: return sizeof(int16_t);
case DW_FORM_data4: return sizeof(int32_t);
case DW_FORM_udata: return DW.SizeULEB128(Integer);
case DW_FORM_sdata: return DW.SizeSLEB128(Integer);
default: assert(0 && "DIE Value form not supported yet"); break;
}
return 0;
@ -705,7 +709,7 @@ void DIEString::EmitValue(const DwarfWriter &DW, unsigned Form) const {
/// SizeOf - Determine size of string value in bytes.
///
unsigned DIEString::SizeOf(const DwarfWriter &DW, unsigned Form) const {
return String.size() + sizeof('\0');
return String.size() + sizeof(char); // sizeof('\0');
}
//===----------------------------------------------------------------------===//
@ -792,7 +796,18 @@ DIE::~DIE() {
/// AddInt - Add a simple integer attribute data and value.
///
void DIE::AddInt(unsigned Attribute, unsigned Form,
int Integer) {
int Integer, bool IsSigned) {
if (Form == 0) {
if (IsSigned) {
if ((char)Integer == Integer) Form = DW_FORM_data1;
else if ((short)Integer == Integer) Form = DW_FORM_data2;
else Form = DW_FORM_data4;
} else {
if ((unsigned char)Integer == Integer) Form = DW_FORM_data1;
else if ((unsigned short)Integer == Integer) Form = DW_FORM_data2;
else Form = DW_FORM_data4;
}
}
Abbrev->AddAttribute(Attribute, Form);
Values.push_back(new DIEInteger(Integer));
}
@ -892,10 +907,11 @@ DIE *DWContext::NewVariable(const std::string &Name,
assert(IsExternal && "Internal variables not handled yet");
Variable = new DIE(DW_TAG_variable, DW_CHILDREN_no);
Variable->AddString (DW_AT_name, DW_FORM_string, Name);
Variable->AddInt (DW_AT_decl_file, DW_FORM_data1, SourceFileID);
Variable->AddInt (DW_AT_decl_line, DW_FORM_data1, Line);
Variable->AddInt (DW_AT_decl_file, 0, SourceFileID);
Variable->AddInt (DW_AT_decl_line, 0, Line);
Variable->AddDIEntry (DW_AT_type, DW_FORM_ref4, Type);
Variable->AddInt (DW_AT_external, DW_FORM_flag, (int)IsExternal);
// FIXME - needs to be an expression.
Variable->AddAsIsLabel(DW_AT_location, DW_FORM_block1,
std::string("_")+Name+".b");
Variable->Complete(DW);