From c1a6d65d21545ad1622e2f8041c6a55756b71599 Mon Sep 17 00:00:00 2001
From: David Majnemer <david.majnemer@gmail.com>
Date: Thu, 10 Jul 2014 16:26:10 +0000
Subject: [PATCH] IR: Aliases don't belong to an explicit comdat

Aliases inherit their comdat from their aliasee, they don't have an
explicit comdat.

This fixes PR20279.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212732 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/IR/AsmWriter.cpp   | 5 -----
 test/Feature/comdat.ll | 3 +++
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/lib/IR/AsmWriter.cpp b/lib/IR/AsmWriter.cpp
index 87d26b164bb..a7499bc09b3 100644
--- a/lib/IR/AsmWriter.cpp
+++ b/lib/IR/AsmWriter.cpp
@@ -1528,11 +1528,6 @@ void AssemblyWriter::printAlias(const GlobalAlias *GA) {
     writeOperand(Aliasee, !isa<ConstantExpr>(Aliasee));
   }
 
-  if (GA->hasComdat()) {
-    Out << ", comdat ";
-    PrintLLVMName(Out, GA->getComdat()->getName(), ComdatPrefix);
-  }
-
   printInfoComment(*GA);
   Out << '\n';
 }
diff --git a/test/Feature/comdat.ll b/test/Feature/comdat.ll
index 6b94a418582..05fb87c648e 100644
--- a/test/Feature/comdat.ll
+++ b/test/Feature/comdat.ll
@@ -9,6 +9,9 @@ $f2 = comdat any
 @v = global i32 0, comdat $f
 ; CHECK: @v = global i32 0, comdat $f
 
+@a = alias i32* @v
+; CHECK: @a = alias i32* @v{{$}}
+
 define void @f() comdat $f {
   ret void
 }