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Avoid directly relying on llvm.dbg.compile_unit and llvm.dbg.global_variables.

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PIC16 developers, please verify. Thanks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74880 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2009-07-06 23:28:36 +00:00
parent 8d6162a4be
commit 92c551103f
1 changed files with 29 additions and 27 deletions
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56
lib/Target/PIC16/PIC16DebugInfo.cpp
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@ -200,9 +200,13 @@ short PIC16DbgInfo::getStorageClass(DIGlobalVariable DIGV) {
/// required initializations.
void PIC16DbgInfo::BeginModule(Module &M) {
// Emit file directive for module.
// FIXME : What if more then one CUs are present in a module ?
GlobalVariable *CU = M.getNamedGlobal("llvm.dbg.compile_unit");
if (CU) {
SmallVector<GlobalVariable *, 2> CUs;
SmallVector<GlobalVariable *, 4> GVs;
SmallVector<GlobalVariable *, 4> SPs;
CollectDebugInfoAnchors(M, CUs, GVs, SPs);
if (!CUs.empty()) {
// FIXME : What if more then one CUs are present in a module ?
GlobalVariable *CU = CUs[0];
EmitDebugDirectives = true;
SwitchToCU(CU);
}
@ -427,32 +431,30 @@ void PIC16DbgInfo::EmitSymbol(std::string Name, short Class, unsigned short
/// EmitVarDebugInfo - Emit debug information for all variables.
///
void PIC16DbgInfo::EmitVarDebugInfo(Module &M) {
// FIXME : This anchor has been removed.
GlobalVariable *Root = M.getGlobalVariable("llvm.dbg.global_variables");
if (!Root)
SmallVector<GlobalVariable *, 2> CUs;
SmallVector<GlobalVariable *, 4> GVs;
SmallVector<GlobalVariable *, 4> SPs;
CollectDebugInfoAnchors(M, CUs, GVs, SPs);
if (GVs.empty())
return;
Constant *RootC = cast<Constant>(*Root->use_begin());
for (Value::use_iterator UI = RootC->use_begin(), UE = Root->use_end();
UI != UE; ++UI) {
for (Value::use_iterator UUI = UI->use_begin(), UUE = UI->use_end();
UUI != UUE; ++UUI) {
DIGlobalVariable DIGV(cast<GlobalVariable>(*UUI));
DIType Ty = DIGV.getType();
unsigned short TypeNo = 0;
bool HasAux = false;
int Aux[PIC16Dbg::AuxSize] = { 0 };
std::string TagName = "";
std::string VarName = TAI->getGlobalPrefix()+DIGV.getGlobal()->getName();
PopulateDebugInfo(Ty, TypeNo, HasAux, Aux, TagName);
// Emit debug info only if type information is availaible.
if (TypeNo != PIC16Dbg::T_NULL) {
O << "\n\t.type " << VarName << ", " << TypeNo;
short ClassNo = getStorageClass(DIGV);
O << "\n\t.class " << VarName << ", " << ClassNo;
if (HasAux)
EmitAuxEntry(VarName, Aux, PIC16Dbg::AuxSize, TagName);
}
for (SmallVector<GlobalVariable *, 4>::iterator I = GVs.begin(),
E = GVs.end(); I != E; ++I) {
DIGlobalVariable DIGV(*I);
DIType Ty = DIGV.getType();
unsigned short TypeNo = 0;
bool HasAux = false;
int Aux[PIC16Dbg::AuxSize] = { 0 };
std::string TagName = "";
std::string VarName = TAI->getGlobalPrefix()+DIGV.getGlobal()->getName();
PopulateDebugInfo(Ty, TypeNo, HasAux, Aux, TagName);
// Emit debug info only if type information is availaible.
if (TypeNo != PIC16Dbg::T_NULL) {
O << "\n\t.type " << VarName << ", " << TypeNo;
short ClassNo = getStorageClass(DIGV);
O << "\n\t.class " << VarName << ", " << ClassNo;
if (HasAux)
EmitAuxEntry(VarName, Aux, PIC16Dbg::AuxSize, TagName);
}
}
O << "\n";