From ab47895c6bfe3a4b95c849fe1894af6a187d92e0 Mon Sep 17 00:00:00 2001
From: Jeff Cohen <jeffc@jolt-lang.org>
Date: Wed, 28 Mar 2007 23:08:37 +0000
Subject: [PATCH] Fix C Backend to generate code that works with Microsoft C
 for the benefit of front ends that do not depend on the GCC runtime
 (someday...).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35441 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/CBackend/CBackend.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index eeefaa27e99..05efa7da064 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -1293,7 +1293,10 @@ static void generateCompilerSpecificCode(std::ostream& Out) {
       << "#define alloca(x) __builtin_alloca(x)\n"
       << "#elif defined(__FreeBSD__) || defined(__OpenBSD__)\n"
       << "#define alloca(x) __builtin_alloca(x)\n"
-      << "#elif !defined(_MSC_VER)\n"
+      << "#elif defined(_MSC_VER)\n"
+      << "#define inline\n"
+      << "#define alloca(x) _alloca(x)\n"
+      << "#else\n"
       << "#include <alloca.h>\n"
       << "#endif\n\n";