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IRgen support for alias of global variable.

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- PR3818.

llvm-svn: 67297
This commit is contained in:
Daniel Dunbar
2009-03-19 08:27:24 +00:00
parent 8d6ab2afa6
commit 4e004ed124
3 changed files with 23 additions and 12 deletions
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20
clang/lib/CodeGen/CodeGenModule.cpp
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@@ -369,7 +369,7 @@ void CodeGenModule::SetFunctionAttributes(const FunctionDecl *FD,
void CodeGenModule::EmitAliases() {
for (unsigned i = 0, e = Aliases.size(); i != e; ++i) {
const FunctionDecl *D = Aliases[i];
const ValueDecl *D = Aliases[i];
const AliasAttr *AA = D->getAttr<AliasAttr>();
// This is something of a hack, if the FunctionDecl got overridden
@@ -380,7 +380,7 @@ void CodeGenModule::EmitAliases() {
continue;
const std::string& aliaseeName = AA->getAliasee();
llvm::Function *aliasee = getModule().getFunction(aliaseeName);
llvm::GlobalValue *aliasee = getModule().getNamedValue(aliaseeName);
if (!aliasee) {
// FIXME: This isn't unsupported, this is just an error, which
// sema should catch, but...
@@ -539,16 +539,14 @@ bool CodeGenModule::MayDeferGeneration(const ValueDecl *Global) {
}
void CodeGenModule::EmitGlobal(const ValueDecl *Global) {
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(Global)) {
// Aliases are deferred until code for everything else has been
// emitted.
if (FD->getAttr<AliasAttr>()) {
assert(!FD->isThisDeclarationADefinition() &&
"Function alias cannot have a definition!");
Aliases.push_back(FD);
return;
}
// Aliases are deferred until code for everything else has been
// emitted.
if (Global->getAttr<AliasAttr>()) {
Aliases.push_back(Global);
return;
}
if (const FunctionDecl *FD = dyn_cast<FunctionDecl>(Global)) {
// Forward declarations are emitted lazily on first use.
if (!FD->isThisDeclarationADefinition())
return;