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Fix bug: 2003-01-30-LinkerRename.ll

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5828 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-21 21:15:04 +00:00
parent 0fec08eb58
commit 2719bac905
3 changed files with 99 additions and 21 deletions
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40
lib/Linker/LinkModules.cpp
View File

@ -210,12 +210,26 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
// symbol over in the dest module... the initializer will be filled in // symbol over in the dest module... the initializer will be filled in
// later by LinkGlobalInits... // later by LinkGlobalInits...
// //
DGV = new GlobalVariable(SGV->getType()->getElementType(), GlobalVariable *NewDGV =
SGV->isConstant(), SGV->getLinkage(), /*init*/0, new GlobalVariable(SGV->getType()->getElementType(),
SGV->getName(), Dest); SGV->isConstant(), SGV->getLinkage(), /*init*/0,
SGV->getName(), Dest);
// If the LLVM runtime renamed the global, but it is an externally visible
// symbol, DGV must be an existing global with internal linkage. Rename
// it.
if (NewDGV->getName() != SGV->getName() && !NewDGV->hasInternalLinkage()){
assert(DGV && DGV->getName() == SGV->getName() &&
DGV->hasInternalLinkage());
DGV->setName("");
NewDGV->setName(SGV->getName()); // Force the name back
DGV->setName(SGV->getName()); // This will cause a renaming
assert(NewDGV->getName() == SGV->getName() &&
DGV->getName() != SGV->getName());
}
// Make sure to remember this mapping... // Make sure to remember this mapping...
ValueMap.insert(std::make_pair(SGV, DGV)); ValueMap.insert(std::make_pair(SGV, NewDGV));
} else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){ } else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){
return Error(Err, "Global variables named '" + SGV->getName() + return Error(Err, "Global variables named '" + SGV->getName() +
"' have different linkage specifiers!"); "' have different linkage specifiers!");
@ -313,11 +327,23 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) { if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) {
// Function does not already exist, simply insert an function signature // Function does not already exist, simply insert an function signature
// identical to SF into the dest module... // identical to SF into the dest module...
Function *DF = new Function(SF->getFunctionType(), SF->getLinkage(), Function *NewDF = new Function(SF->getFunctionType(), SF->getLinkage(),
SF->getName(), Dest); SF->getName(), Dest);
// If the LLVM runtime renamed the function, but it is an externally
// visible symbol, DF must be an existing function with internal linkage.
// Rename it.
if (NewDF->getName() != SF->getName() && !NewDF->hasInternalLinkage()) {
assert(DF && DF->getName() == SF->getName() &&DF->hasInternalLinkage());
DF->setName("");
NewDF->setName(SF->getName()); // Force the name back
DF->setName(SF->getName()); // This will cause a renaming
assert(NewDF->getName() == SF->getName() &&
DF->getName() != SF->getName());
}
// ... and remember this mapping... // ... and remember this mapping...
ValueMap.insert(std::make_pair(SF, DF)); ValueMap.insert(std::make_pair(SF, NewDF));
} else if (SF->getLinkage() == GlobalValue::AppendingLinkage) { } else if (SF->getLinkage() == GlobalValue::AppendingLinkage) {
return Error(Err, "Functions named '" + SF->getName() + return Error(Err, "Functions named '" + SF->getName() +
"' have appending linkage!"); "' have appending linkage!");

40
lib/Transforms/Utils/Linker.cpp
View File

@ -210,12 +210,26 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
// symbol over in the dest module... the initializer will be filled in // symbol over in the dest module... the initializer will be filled in
// later by LinkGlobalInits... // later by LinkGlobalInits...
// //
DGV = new GlobalVariable(SGV->getType()->getElementType(), GlobalVariable *NewDGV =
SGV->isConstant(), SGV->getLinkage(), /*init*/0, new GlobalVariable(SGV->getType()->getElementType(),
SGV->getName(), Dest); SGV->isConstant(), SGV->getLinkage(), /*init*/0,
SGV->getName(), Dest);
// If the LLVM runtime renamed the global, but it is an externally visible
// symbol, DGV must be an existing global with internal linkage. Rename
// it.
if (NewDGV->getName() != SGV->getName() && !NewDGV->hasInternalLinkage()){
assert(DGV && DGV->getName() == SGV->getName() &&
DGV->hasInternalLinkage());
DGV->setName("");
NewDGV->setName(SGV->getName()); // Force the name back
DGV->setName(SGV->getName()); // This will cause a renaming
assert(NewDGV->getName() == SGV->getName() &&
DGV->getName() != SGV->getName());
}
// Make sure to remember this mapping... // Make sure to remember this mapping...
ValueMap.insert(std::make_pair(SGV, DGV)); ValueMap.insert(std::make_pair(SGV, NewDGV));
} else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){ } else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){
return Error(Err, "Global variables named '" + SGV->getName() + return Error(Err, "Global variables named '" + SGV->getName() +
"' have different linkage specifiers!"); "' have different linkage specifiers!");
@ -313,11 +327,23 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) { if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) {
// Function does not already exist, simply insert an function signature // Function does not already exist, simply insert an function signature
// identical to SF into the dest module... // identical to SF into the dest module...
Function *DF = new Function(SF->getFunctionType(), SF->getLinkage(), Function *NewDF = new Function(SF->getFunctionType(), SF->getLinkage(),
SF->getName(), Dest); SF->getName(), Dest);
// If the LLVM runtime renamed the function, but it is an externally
// visible symbol, DF must be an existing function with internal linkage.
// Rename it.
if (NewDF->getName() != SF->getName() && !NewDF->hasInternalLinkage()) {
assert(DF && DF->getName() == SF->getName() &&DF->hasInternalLinkage());
DF->setName("");
NewDF->setName(SF->getName()); // Force the name back
DF->setName(SF->getName()); // This will cause a renaming
assert(NewDF->getName() == SF->getName() &&
DF->getName() != SF->getName());
}
// ... and remember this mapping... // ... and remember this mapping...
ValueMap.insert(std::make_pair(SF, DF)); ValueMap.insert(std::make_pair(SF, NewDF));
} else if (SF->getLinkage() == GlobalValue::AppendingLinkage) { } else if (SF->getLinkage() == GlobalValue::AppendingLinkage) {
return Error(Err, "Functions named '" + SF->getName() + return Error(Err, "Functions named '" + SF->getName() +
"' have appending linkage!"); "' have appending linkage!");

40
lib/VMCore/Linker.cpp
View File

@ -210,12 +210,26 @@ static bool LinkGlobals(Module *Dest, const Module *Src,
// symbol over in the dest module... the initializer will be filled in // symbol over in the dest module... the initializer will be filled in
// later by LinkGlobalInits... // later by LinkGlobalInits...
// //
DGV = new GlobalVariable(SGV->getType()->getElementType(), GlobalVariable *NewDGV =
SGV->isConstant(), SGV->getLinkage(), /*init*/0, new GlobalVariable(SGV->getType()->getElementType(),
SGV->getName(), Dest); SGV->isConstant(), SGV->getLinkage(), /*init*/0,
SGV->getName(), Dest);
// If the LLVM runtime renamed the global, but it is an externally visible
// symbol, DGV must be an existing global with internal linkage. Rename
// it.
if (NewDGV->getName() != SGV->getName() && !NewDGV->hasInternalLinkage()){
assert(DGV && DGV->getName() == SGV->getName() &&
DGV->hasInternalLinkage());
DGV->setName("");
NewDGV->setName(SGV->getName()); // Force the name back
DGV->setName(SGV->getName()); // This will cause a renaming
assert(NewDGV->getName() == SGV->getName() &&
DGV->getName() != SGV->getName());
}
// Make sure to remember this mapping... // Make sure to remember this mapping...
ValueMap.insert(std::make_pair(SGV, DGV)); ValueMap.insert(std::make_pair(SGV, NewDGV));
} else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){ } else if (!SGExtern && !DGExtern && SGV->getLinkage() !=DGV->getLinkage()){
return Error(Err, "Global variables named '" + SGV->getName() + return Error(Err, "Global variables named '" + SGV->getName() +
"' have different linkage specifiers!"); "' have different linkage specifiers!");
@ -313,11 +327,23 @@ static bool LinkFunctionProtos(Module *Dest, const Module *Src,
if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) { if (!DF || SF->hasInternalLinkage() || DF->hasInternalLinkage()) {
// Function does not already exist, simply insert an function signature // Function does not already exist, simply insert an function signature
// identical to SF into the dest module... // identical to SF into the dest module...
Function *DF = new Function(SF->getFunctionType(), SF->getLinkage(), Function *NewDF = new Function(SF->getFunctionType(), SF->getLinkage(),
SF->getName(), Dest); SF->getName(), Dest);
// If the LLVM runtime renamed the function, but it is an externally
// visible symbol, DF must be an existing function with internal linkage.
// Rename it.
if (NewDF->getName() != SF->getName() && !NewDF->hasInternalLinkage()) {
assert(DF && DF->getName() == SF->getName() &&DF->hasInternalLinkage());
DF->setName("");
NewDF->setName(SF->getName()); // Force the name back
DF->setName(SF->getName()); // This will cause a renaming
assert(NewDF->getName() == SF->getName() &&
DF->getName() != SF->getName());
}
// ... and remember this mapping... // ... and remember this mapping...
ValueMap.insert(std::make_pair(SF, DF)); ValueMap.insert(std::make_pair(SF, NewDF));
} else if (SF->getLinkage() == GlobalValue::AppendingLinkage) { } else if (SF->getLinkage() == GlobalValue::AppendingLinkage) {
return Error(Err, "Functions named '" + SF->getName() + return Error(Err, "Functions named '" + SF->getName() +
"' have appending linkage!"); "' have appending linkage!");