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Fix the label name generation for address-taken labels to avoid potential

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problems with name collisions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86189 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-11-05 23:14:35 +00:00
parent 0c8ae782cb
commit 568a3be545
1 changed files with 10 additions and 6 deletions
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16
lib/CodeGen/AsmPrinter/AsmPrinter.cpp
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@ -1636,13 +1636,17 @@ MCSymbol *AsmPrinter::GetBlockAddressSymbol(const Function *F,
assert(BB->hasName() &&
"Address of anonymous basic block not supported yet!");
// FIXME: This isn't guaranteed to produce a unique name even if the
// block and function have a name.
std::string Mangled =
Mang->getMangledName(F, Mang->makeNameProper(BB->getName()).c_str(),
/*ForcePrivate=*/true);
// This code must use the function name itself, and not the function number,
// since it must be possible to generate the label name from within other
// functions.
std::string FuncName = Mang->getMangledName(F);
return OutContext.GetOrCreateSymbol(StringRef(Mangled));
SmallString<60> Name;
raw_svector_ostream(Name) << MAI->getPrivateGlobalPrefix() << "BA"
<< FuncName.size() << '_' << FuncName << '_'
<< Mang->makeNameProper(BB->getName());
return OutContext.GetOrCreateSymbol(Name.str());
}
MCSymbol *AsmPrinter::GetMBBSymbol(unsigned MBBID) const {