Revert "Implement global merge optimization for global variables."

This reverts commit r208934.

The patch depends on aliases to GEPs with non zero offsets. That is not
supported and fairly broken.

The good news is that GlobalAlias is being redesigned and will have support
for offsets, so this patch should be a nice match for it.

llvm-svn: 208978

1 files changed, 2 insertions, 5 deletions

diff --git a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 0c4865f2f27..37a2c3220cb 100644
--- a/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -946,11 +946,8 @@ bool AsmPrinter::doFinalization(Module &M) {
       EmitVisibility(Name, Alias.getVisibility());
 
       // Emit the directives as assignments aka .set:
-      const MCExpr *Expr = MCSymbolRefExpr::Create(Target, OutContext);
-      if (uint64_t Offset = Alias.calculateOffset(*TM.getDataLayout()))
-        Expr = MCBinaryExpr::CreateAdd(Expr,
-                 MCConstantExpr::Create(Offset, OutContext), OutContext);
-      OutStreamer.EmitAssignment(Name, Expr);
+      OutStreamer.EmitAssignment(Name,
+                                 MCSymbolRefExpr::Create(Target, OutContext));
     }
   }