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Use "llvm.metadata" section for debug globals. Filter out these globals in the

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asm printer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26599 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2006-03-07 22:00:35 +00:00
parent e8c3e3b51c
commit 7809811e4e
4 changed files with 11 additions and 4 deletions
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8
lib/CodeGen/AsmPrinter.cpp
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@ -131,8 +131,12 @@ void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) {
/// special global used by LLVM. If so, emit it and return true, otherwise
/// do nothing and return false.
bool AsmPrinter::EmitSpecialLLVMGlobal(const GlobalVariable *GV) {
assert(GV->hasInitializer() && GV->hasAppendingLinkage() &&
"Not a special LLVM global!");
// Ignore debug and non-emitted data.
if (GV->getSection() == "llvm.metadata") return true;
if (!GV->hasAppendingLinkage()) return false;
assert(GV->hasInitializer() && "Not a special LLVM global!");
if (GV->getName() == "llvm.used")
return true; // No need to emit this at all.

3
lib/CodeGen/MachineDebugInfo.cpp
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@ -350,6 +350,7 @@ public:
GlobalValue::InternalLinkage,
CA, "llvm.dbg.array",
SR.getModule());
CAGV->setSection("llvm.metadata");
Constant *CAE = ConstantExpr::getCast(CAGV, EmptyTy);
Elements.push_back(CAE);
}
@ -1193,6 +1194,7 @@ Constant *DISerializer::getString(const std::string &String) {
GlobalVariable *StrGV = new GlobalVariable(ConstStr->getType(), true,
GlobalVariable::InternalLinkage,
ConstStr, "str", M);
StrGV->setSection("llvm.metadata");
// Convert to generic string pointer.
Slot = ConstantExpr::getCast(StrGV, getStrPtrType());
return Slot;
@ -1214,6 +1216,7 @@ GlobalVariable *DISerializer::Serialize(DebugInfoDesc *DD) {
// Create the GlobalVariable early to prevent infinite recursion.
GlobalVariable *GV = new GlobalVariable(Ty, true, DD->getLinkage(),
NULL, DD->getDescString(), M);
GV->setSection("llvm.metadata");
// Insert new GlobalVariable in DescGlobals map.
Slot = GV;

2
lib/Target/PowerPC/PPCAsmPrinter.cpp
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@ -564,7 +564,7 @@ bool DarwinAsmPrinter::doFinalization(Module &M) {
if (!I->hasInitializer()) continue; // External global require no code
// Check to see if this is a special global used by LLVM, if so, emit it.
if (I->hasAppendingLinkage() && EmitSpecialLLVMGlobal(I))
if (EmitSpecialLLVMGlobal(I))
continue;
std::string name = Mang->getValueName(I);

2
lib/Target/X86/X86AsmPrinter.cpp
View File

@ -92,7 +92,7 @@ bool X86SharedAsmPrinter::doFinalization(Module &M) {
if (!I->hasInitializer()) continue; // External global require no code
// Check to see if this is a special global used by LLVM, if so, emit it.
if (I->hasAppendingLinkage() && EmitSpecialLLVMGlobal(I))
if (EmitSpecialLLVMGlobal(I))
continue;
std::string name = Mang->getValueName(I);