[opaque pointer type] Pass GlobalAlias the actual pointer type rather than decomposing it into pointee type + address space

Many of the callers already have the pointer type anyway, and for the
couple of callers that don't it's pretty easy to call PointerType::get
on the pointee type and address space.

This avoids LLParser from using PointerType::getElementType when parsing
GlobalAliases from IR.

llvm-svn: 236160

1 files changed, 1 insertions, 2 deletions

diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
index 596674d..396ab9b 100644
--- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp
+++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp
@@ -1358,8 +1358,7 @@ void MergeFunctions::writeThunk(Function *F, Function *G) {
 // Replace G with an alias to F and delete G.
 void MergeFunctions::writeAlias(Function *F, Function *G) {
   PointerType *PTy = G->getType();
-  auto *GA = GlobalAlias::create(PTy->getElementType(), PTy->getAddressSpace(),
-                                 G->getLinkage(), "", F);
+  auto *GA = GlobalAlias::create(PTy, G->getLinkage(), "", F);
   F->setAlignment(std::max(F->getAlignment(), G->getAlignment()));
   GA->takeName(G);
   GA->setVisibility(G->getVisibility());