From 43a9994c0164848d44527060da72985c75183a48 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 22 Apr 2003 19:13:20 +0000
Subject: [PATCH] Add warning when linking modules with disagreeing target
 properties

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5845 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Linker/LinkModules.cpp      | 4 ++++
 lib/Transforms/Utils/Linker.cpp | 4 ++++
 lib/VMCore/Linker.cpp           | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/lib/Linker/LinkModules.cpp b/lib/Linker/LinkModules.cpp
index 65b05cd65e9..b5cec060763 100644
--- a/lib/Linker/LinkModules.cpp
+++ b/lib/Linker/LinkModules.cpp
@@ -469,6 +469,10 @@ static bool LinkFunctionBodies(Module *Dest, const Module *Src,
 // shouldn't be relied on to be consistent.
 //
 bool LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
+  if (Dest->getEndianness() != Src->getEndianness())
+    std::cerr << "WARNING: Linking two modules of different endianness!\n";
+  if (Dest->getPointerSize() != Src->getPointerSize())
+    std::cerr << "WARNING: Linking two modules of different pointer size!\n";
 
   // LinkTypes - Go through the symbol table of the Src module and see if any
   // types are named in the src module that are not named in the Dst module.
diff --git a/lib/Transforms/Utils/Linker.cpp b/lib/Transforms/Utils/Linker.cpp
index 65b05cd65e9..b5cec060763 100644
--- a/lib/Transforms/Utils/Linker.cpp
+++ b/lib/Transforms/Utils/Linker.cpp
@@ -469,6 +469,10 @@ static bool LinkFunctionBodies(Module *Dest, const Module *Src,
 // shouldn't be relied on to be consistent.
 //
 bool LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
+  if (Dest->getEndianness() != Src->getEndianness())
+    std::cerr << "WARNING: Linking two modules of different endianness!\n";
+  if (Dest->getPointerSize() != Src->getPointerSize())
+    std::cerr << "WARNING: Linking two modules of different pointer size!\n";
 
   // LinkTypes - Go through the symbol table of the Src module and see if any
   // types are named in the src module that are not named in the Dst module.
diff --git a/lib/VMCore/Linker.cpp b/lib/VMCore/Linker.cpp
index 65b05cd65e9..b5cec060763 100644
--- a/lib/VMCore/Linker.cpp
+++ b/lib/VMCore/Linker.cpp
@@ -469,6 +469,10 @@ static bool LinkFunctionBodies(Module *Dest, const Module *Src,
 // shouldn't be relied on to be consistent.
 //
 bool LinkModules(Module *Dest, const Module *Src, std::string *ErrorMsg) {
+  if (Dest->getEndianness() != Src->getEndianness())
+    std::cerr << "WARNING: Linking two modules of different endianness!\n";
+  if (Dest->getPointerSize() != Src->getPointerSize())
+    std::cerr << "WARNING: Linking two modules of different pointer size!\n";
 
   // LinkTypes - Go through the symbol table of the Src module and see if any
   // types are named in the src module that are not named in the Dst module.