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Simplify the loop linking function bodies. NFC.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@223512 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2014-12-05 21:04:36 +00:00
parent a44126f432
commit f117c8ae03
1 changed files with 23 additions and 39 deletions
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62
lib/Linker/LinkModules.cpp
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@ -1514,48 +1514,32 @@ bool ModuleLinker::run() {
linkGlobalInits();
// Process vector of lazily linked in functions.
bool LinkedInAnyFunctions;
do {
LinkedInAnyFunctions = false;
while (!LazilyLinkFunctions.empty()) {
Function *SF = LazilyLinkFunctions.back();
LazilyLinkFunctions.pop_back();
for(std::vector<Function*>::iterator I = LazilyLinkFunctions.begin(),
E = LazilyLinkFunctions.end(); I != E; ++I) {
Function *SF = *I;
if (!SF)
continue;
if (!SF)
continue;
Function *DF = cast<Function>(ValueMap[SF]);
if (SF->hasPrefixData()) {
// Link in the prefix data.
DF->setPrefixData(MapValue(SF->getPrefixData(),
ValueMap,
RF_None,
&TypeMap,
&ValMaterializer));
}
// Materialize if needed.
if (std::error_code EC = SF->materialize())
return emitError(EC.message());
// Skip if no body (function is external).
if (SF->isDeclaration())
continue;
// Erase from vector *before* the function body is linked - linkFunctionBody could
// invalidate I.
LazilyLinkFunctions.erase(I);
// Link in function body.
linkFunctionBody(DF, SF);
SF->Dematerialize();
// Set flag to indicate we may have more functions to lazily link in
// since we linked in a function.
LinkedInAnyFunctions = true;
break;
Function *DF = cast<Function>(ValueMap[SF]);
if (SF->hasPrefixData()) {
// Link in the prefix data.
DF->setPrefixData(MapValue(SF->getPrefixData(), ValueMap, RF_None,
&TypeMap, &ValMaterializer));
}
} while (LinkedInAnyFunctions);
// Materialize if needed.
if (std::error_code EC = SF->materialize())
return emitError(EC.message());
// Skip if no body (function is external).
if (SF->isDeclaration())
continue;
// Link in function body.
linkFunctionBody(DF, SF);
SF->Dematerialize();
}
return false;
}