From 62b811443db32e55b37370b421e0f34454417b47 Mon Sep 17 00:00:00 2001
From: Nico Rieck <nico.rieck@gmail.com>
Date: Tue, 14 Jan 2014 12:36:54 +0000
Subject: [PATCH] Revert "Handle dllexport for global aliases"

This reverts commit r199205.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199206 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86AsmPrinter.cpp     | 15 ---------------
 test/CodeGen/X86/dllexport-x86_64.ll | 25 -------------------------
 test/CodeGen/X86/dllexport.ll        | 25 -------------------------
 3 files changed, 65 deletions(-)

diff --git a/lib/Target/X86/X86AsmPrinter.cpp b/lib/Target/X86/X86AsmPrinter.cpp
index e6ad2f1d0da..ad7d3e0fdca 100644
--- a/lib/Target/X86/X86AsmPrinter.cpp
+++ b/lib/Target/X86/X86AsmPrinter.cpp
@@ -658,21 +658,6 @@ void X86AsmPrinter::EmitEndOfAsmFile(Module &M) {
       if (I->hasDLLExportStorageClass())
         DLLExportedGlobals.push_back(getSymbol(I));
 
-    for (Module::const_alias_iterator I = M.alias_begin(), E = M.alias_end();
-                                      I != E; ++I) {
-      const GlobalValue *GV = I;
-      if (!GV->hasDLLExportStorageClass())
-        continue;
-
-      while (const GlobalAlias *A = dyn_cast<GlobalAlias>(GV))
-        GV = A->getAliasedGlobal();
-
-      if (isa<Function>(GV))
-        DLLExportedFns.push_back(getSymbol(I));
-      else if (isa<GlobalVariable>(GV))
-        DLLExportedGlobals.push_back(getSymbol(I));
-    }
-
     // Output linker support code for dllexported globals on windows.
     if (!DLLExportedGlobals.empty() || !DLLExportedFns.empty()) {
       const TargetLoweringObjectFileCOFF &TLOFCOFF =
diff --git a/test/CodeGen/X86/dllexport-x86_64.ll b/test/CodeGen/X86/dllexport-x86_64.ll
index 1fadfec2543..6bf73aa5366 100644
--- a/test/CodeGen/X86/dllexport-x86_64.ll
+++ b/test/CodeGen/X86/dllexport-x86_64.ll
@@ -56,23 +56,6 @@ define weak_odr dllexport void @weak1() {
 @WeakVar2 = weak_odr dllexport unnamed_addr constant i32 1
 
 
-; CHECK: .globl alias
-; CHECK: alias = notExported
-@alias = dllexport alias void()* @notExported
-
-; CHECK: .globl alias2
-; CHECK: alias2 = f1
-@alias2 = dllexport alias void()* @f1
-
-; CHECK: .globl alias3
-; CHECK: alias3 = alias
-@alias3 = dllexport alias void()* @alias
-
-; CHECK: .weak weak_alias
-; CHECK: weak_alias = f1
-@weak_alias = dllexport alias weak_odr void()* @f1
-
-
 ; CHECK: .section .drectve
 ; WIN32: /EXPORT:Var1,DATA
 ; WIN32: /EXPORT:Var2,DATA
@@ -84,10 +67,6 @@ define weak_odr dllexport void @weak1() {
 ; WIN32: /EXPORT:lnk1
 ; WIN32: /EXPORT:lnk2
 ; WIN32: /EXPORT:weak1
-; WIN32: /EXPORT:alias
-; WIN32: /EXPORT:alias2
-; WIN32: /EXPORT:alias3
-; WIN32: /EXPORT:weak_alias
 ; MINGW: -export:Var1,data
 ; MINGW: -export:Var2,data
 ; MINGW: -export:Var3,data
@@ -98,7 +77,3 @@ define weak_odr dllexport void @weak1() {
 ; MINGW: -export:lnk1
 ; MINGW: -export:lnk2
 ; MINGW: -export:weak1
-; MINGW: -export:alias
-; MINGW: -export:alias2
-; MINGW: -export:alias3
-; MINGW: -export:weak_alias
diff --git a/test/CodeGen/X86/dllexport.ll b/test/CodeGen/X86/dllexport.ll
index 7f0dadb6a2e..1d992125976 100644
--- a/test/CodeGen/X86/dllexport.ll
+++ b/test/CodeGen/X86/dllexport.ll
@@ -71,23 +71,6 @@ define weak_odr dllexport void @weak1() {
 @WeakVar2 = weak_odr dllexport unnamed_addr constant i32 1
 
 
-; CHECK: .globl _alias
-; CHECK: _alias = _notExported
-@alias = dllexport alias void()* @notExported
-
-; CHECK: .globl _alias2
-; CHECK: _alias2 = _f1
-@alias2 = dllexport alias void()* @f1
-
-; CHECK: .globl _alias3
-; CHECK: _alias3 = _alias
-@alias3 = dllexport alias void()* @alias
-
-; CHECK: .weak _weak_alias
-; CHECK: _weak_alias = _f1
-@weak_alias = dllexport alias weak_odr void()* @f1
-
-
 ; CHECK: .section .drectve
 ; WIN32: /EXPORT:_Var1,DATA
 ; WIN32: /EXPORT:_Var2,DATA
@@ -102,10 +85,6 @@ define weak_odr dllexport void @weak1() {
 ; WIN32: /EXPORT:_lnk1
 ; WIN32: /EXPORT:_lnk2
 ; WIN32: /EXPORT:_weak1
-; WIN32: /EXPORT:_alias
-; WIN32: /EXPORT:_alias2
-; WIN32: /EXPORT:_alias3
-; WIN32: /EXPORT:_weak_alias
 ; MINGW: -export:_Var1,data
 ; MINGW: -export:_Var2,data
 ; MINGW: -export:_Var3,data
@@ -119,7 +98,3 @@ define weak_odr dllexport void @weak1() {
 ; MINGW: -export:_lnk1
 ; MINGW: -export:_lnk2
 ; MINGW: -export:_weak1
-; MINGW: -export:_alias
-; MINGW: -export:_alias2
-; MINGW: -export:_alias3
-; MINGW: -export:_weak_alias