From 2cd9846cc9cad10f907ac6e0c6434ede068dcab3 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Mon, 5 Nov 2018 12:44:23 +0100
Subject: [PATCH] interp: fix compile-time alloc linkage

This makes sure compile-time allocations (globals with the $alloc
suffix) can be eliminated when unused.
---
 interp/frame.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/interp/frame.go b/interp/frame.go
index 860ec02d7..9e75f8f6d 100644
--- a/interp/frame.go
+++ b/interp/frame.go
@@ -215,6 +215,7 @@ func (fr *frame) evalBasicBlock(bb, incoming llvm.BasicBlock, indent string) (re
 				}
 				alloc := llvm.AddGlobal(fr.Mod, allocType, fr.pkgName+"$alloc")
 				alloc.SetInitializer(getZeroValue(allocType))
+				alloc.SetLinkage(llvm.InternalLinkage)
 				result := &GlobalValue{
 					Underlying: alloc,
 					Eval:       fr.Eval,