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While extracting lexical scopes from machine instruction stream, work on one machine basic block at a time.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136106 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-07-26 18:09:53 +00:00
parent 36711e4a3c
commit a671a3092a
1 changed files with 9 additions and 9 deletions
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18
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -1702,11 +1702,11 @@ bool DwarfDebug::extractScopeInformation() {
// Scan each instruction and create scopes. First build working set of scopes. // Scan each instruction and create scopes. First build working set of scopes.
SmallVector<DbgRange, 4> MIRanges; SmallVector<DbgRange, 4> MIRanges;
DenseMap<const MachineInstr *, DbgScope *> MI2ScopeMap; DenseMap<const MachineInstr *, DbgScope *> MI2ScopeMap;
DebugLoc PrevDL;
const MachineInstr *RangeBeginMI = NULL;
const MachineInstr *PrevMI = NULL;
for (MachineFunction::const_iterator I = Asm->MF->begin(), E = Asm->MF->end(); for (MachineFunction::const_iterator I = Asm->MF->begin(), E = Asm->MF->end();
I != E; ++I) { I != E; ++I) {
const MachineInstr *RangeBeginMI = NULL;
const MachineInstr *PrevMI = NULL;
DebugLoc PrevDL;
for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end(); for (MachineBasicBlock::const_iterator II = I->begin(), IE = I->end();
II != IE; ++II) { II != IE; ++II) {
const MachineInstr *MInsn = II; const MachineInstr *MInsn = II;
@ -1749,13 +1749,13 @@ bool DwarfDebug::extractScopeInformation() {
PrevMI = MInsn; PrevMI = MInsn;
PrevDL = MIDL; PrevDL = MIDL;
} }
}
// Create last instruction range. // Create last instruction range.
if (RangeBeginMI && PrevMI && !PrevDL.isUnknown()) { if (RangeBeginMI && PrevMI && !PrevDL.isUnknown()) {
DbgRange R(RangeBeginMI, PrevMI); DbgRange R(RangeBeginMI, PrevMI);
MIRanges.push_back(R); MIRanges.push_back(R);
MI2ScopeMap[RangeBeginMI] = getOrCreateDbgScope(PrevDL); MI2ScopeMap[RangeBeginMI] = getOrCreateDbgScope(PrevDL);
}
} }
if (!CurrentFnDbgScope) if (!CurrentFnDbgScope)