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Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp

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responsible for figuring out what that's supposed to be on its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101844 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2010-04-20 00:37:27 +00:00
parent a9a3321938
commit 084751cd16
3 changed files with 16 additions and 23 deletions
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17
include/llvm/CodeGen/MachineFunction.h
View File

@ -109,10 +109,6 @@ class MachineFunction {
typedef ilist<MachineBasicBlock> BasicBlockListType;
BasicBlockListType BasicBlocks;
/// Default debug location. Used to print out the debug label at the beginning
/// of a function.
DebugLoc DefaultDebugLoc;
/// FunctionNumber - This provides a unique ID for each function emitted in
/// this translation unit.
///
@ -394,19 +390,6 @@ public:
/// normal 'L' label is returned.
MCSymbol *getJTISymbol(unsigned JTI, MCContext &Ctx,
bool isLinkerPrivate = false) const;
//===--------------------------------------------------------------------===//
// Debug location.
//
/// getDefaultDebugLoc - Get the default debug location for the machine
/// function.
DebugLoc getDefaultDebugLoc() const { return DefaultDebugLoc; }
/// setDefaultDebugLoc - Get the default debug location for the machine
/// function.
void setDefaultDebugLoc(DebugLoc DL) { DefaultDebugLoc = DL; }
};
//===--------------------------------------------------------------------===//

17
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -2283,6 +2283,21 @@ void DwarfDebug::identifyScopeMarkers() {
}
}
/// FindFirstDebugLoc - Find the first debug location in the function. This
/// is intended to be an approximation for the source position of the
/// beginning of the function.
static DebugLoc FindFirstDebugLoc(const MachineFunction *MF) {
for (MachineFunction::const_iterator I = MF->begin(), E = MF->end();
I != E; ++I)
for (MachineBasicBlock::const_iterator MBBI = I->begin(), MBBE = I->end();
MBBI != MBBE; ++MBBI) {
DebugLoc DL = MBBI->getDebugLoc();
if (!DL.isUnknown())
return DL;
}
return DebugLoc();
}
/// beginFunction - Gather pre-function debug information. Assumes being
/// emitted immediately after the function entry point.
void DwarfDebug::beginFunction(const MachineFunction *MF) {
@ -2297,7 +2312,7 @@ void DwarfDebug::beginFunction(const MachineFunction *MF) {
// Emit label for the implicitly defined dbg.stoppoint at the start of the
// function.
DebugLoc FDL = MF->getDefaultDebugLoc();
DebugLoc FDL = FindFirstDebugLoc(MF);
if (FDL.isUnknown()) return;
MDNode *Scope = FDL.getScope(MF->getFunction()->getContext());

5
lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
View File

@ -235,11 +235,6 @@ static void SetDebugLoc(const Instruction *I, SelectionDAGBuilder *SDB,
if (FastIS)
FastIS->setCurDebugLoc(DL);
// If the function doesn't have a default debug location yet, set
// it. This is a total hack.
if (MF->getDefaultDebugLoc().isUnknown())
MF->setDefaultDebugLoc(DL);
}
/// ResetDebugLoc - Set MF's and SDB's DebugLocs to Unknown.