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Avoid doing a lot of computation when we have multiple ranges and

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avoid adding information for the debug_inlined section when it isn't
going to be emitted anyhow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185500 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2013-07-03 02:23:53 +00:00
parent 985148ea87
commit e717713547
1 changed files with 29 additions and 26 deletions
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55
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -497,18 +497,6 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
return NULL;
}
SmallVector<InsnRange, 4>::const_iterator RI = Ranges.begin();
MCSymbol *StartLabel = getLabelBeforeInsn(RI->first);
MCSymbol *EndLabel = getLabelAfterInsn(RI->second);
if (StartLabel == 0 || EndLabel == 0) {
llvm_unreachable("Unexpected Start and End labels for an inlined scope!");
}
assert(StartLabel->isDefined() &&
"Invalid starting label for an inlined scope!");
assert(EndLabel->isDefined() &&
"Invalid end label for an inlined scope!");
DIE *ScopeDIE = new DIE(dwarf::DW_TAG_inlined_subroutine);
TheCU->addDIEEntry(ScopeDIE, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, OriginDIE);
@ -528,32 +516,47 @@ DIE *DwarfDebug::constructInlinedScopeDIE(CompileUnit *TheCU,
DebugRangeSymbols.push_back(NULL);
DebugRangeSymbols.push_back(NULL);
} else {
SmallVector<InsnRange, 4>::const_iterator RI = Ranges.begin();
MCSymbol *StartLabel = getLabelBeforeInsn(RI->first);
MCSymbol *EndLabel = getLabelAfterInsn(RI->second);
if (StartLabel == 0 || EndLabel == 0)
llvm_unreachable("Unexpected Start and End labels for an inlined scope!");
assert(StartLabel->isDefined() &&
"Invalid starting label for an inlined scope!");
assert(EndLabel->isDefined() && "Invalid end label for an inlined scope!");
TheCU->addLabelAddress(ScopeDIE, dwarf::DW_AT_low_pc, StartLabel);
TheCU->addLabelAddress(ScopeDIE, dwarf::DW_AT_high_pc, EndLabel);
}
InlinedSubprogramDIEs.insert(OriginDIE);
// Track the start label for this inlined function.
//.debug_inlined section specification does not clearly state how
// to emit inlined scope that is split into multiple instruction ranges.
// For now, use first instruction range and emit low_pc/high_pc pair and
// corresponding .debug_inlined section entry for this pair.
DenseMap<const MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator
I = InlineInfo.find(InlinedSP);
if (I == InlineInfo.end()) {
InlineInfo[InlinedSP].push_back(std::make_pair(StartLabel, ScopeDIE));
InlinedSPNodes.push_back(InlinedSP);
} else
I->second.push_back(std::make_pair(StartLabel, ScopeDIE));
// Add the call site information to the DIE.
DILocation DL(Scope->getInlinedAt());
TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_file, 0,
getOrCreateSourceID(DL.getFilename(), DL.getDirectory(),
TheCU->getUniqueID()));
TheCU->addUInt(ScopeDIE, dwarf::DW_AT_call_line, 0, DL.getLineNumber());
// Track the start label for this inlined function.
//.debug_inlined section specification does not clearly state how
// to emit inlined scopes that are split into multiple instruction ranges.
// For now, use the first instruction range and emit low_pc/high_pc pair and
// corresponding the .debug_inlined section entry for this pair.
if (Asm->MAI->doesDwarfUseInlineInfoSection()) {
MCSymbol *StartLabel = getLabelBeforeInsn(Ranges.begin()->first);
DenseMap<const MDNode *, SmallVector<InlineInfoLabels, 4> >::iterator I =
InlineInfo.find(InlinedSP);
if (I == InlineInfo.end()) {
InlineInfo[InlinedSP].push_back(std::make_pair(StartLabel, ScopeDIE));
InlinedSPNodes.push_back(InlinedSP);
} else
I->second.push_back(std::make_pair(StartLabel, ScopeDIE));
}
// Add name to the name table, we do this here because we're guaranteed
// to have concrete versions of our DW_TAG_inlined_subprogram nodes.
addSubprogramNames(TheCU, InlinedSP, ScopeDIE);