RPCS3/llvm
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm.git synced 2024-12-12 14:20:33 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Handle functions as targets during linking of aliases as well

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47974 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2008-03-05 23:08:16 +00:00
parent ad2715e0d7
commit b5a4bd86df
1 changed files with 25 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
lib/Linker/LinkModules.cpp
View File

@ -623,6 +623,7 @@ static bool LinkAlias(Module *Dest, const Module *Src,
} else if (GlobalVariable *DGV = Dest->getGlobalVariable(SGA->getName())) {
RecursiveResolveTypes(SGA->getType(), DGV->getType(),
&Dest->getTypeSymbolTable(), "");
// The only allowed way is to link alias with external declaration.
if (DGV->isDeclaration()) {
NewGA = new GlobalAlias(SGA->getType(), SGA->getLinkage(),
@ -649,7 +650,30 @@ static bool LinkAlias(Module *Dest, const Module *Src,
} else if (Function *DF = Dest->getFunction(SGA->getName())) {
RecursiveResolveTypes(SGA->getType(), DF->getType(),
&Dest->getTypeSymbolTable(), "");
assert(0 && "FIXME");
// The only allowed way is to link alias with external declaration.
if (DF->isDeclaration()) {
NewGA = new GlobalAlias(SGA->getType(), SGA->getLinkage(),
SGA->getName(), DAliasee, Dest);
CopyGVAttributes(NewGA, SGA);
// Any uses of DF need to change to NewGA, with cast, if needed.
if (SGA->getType() != DF->getType())
DF->replaceAllUsesWith(ConstantExpr::getBitCast(NewGA,
DF->getType()));
else
DF->replaceAllUsesWith(NewGA);
// DF will conflict with NewGA because they both had the same
// name. We must erase this now so ForceRenaming doesn't assert
// because DF might not have internal linkage.
DF->eraseFromParent();
// Proceed to 'common' steps
} else
return Error(Err, "Alias Collision on '" +
ToStr(SGA->getType(), Src) +"':%"+SGA->getName()+
" - symbol multiple defined");
} else {
// Nothing similar found, just copy alias into destination module.