From f1e7ea43aa3b511ea9750c7a1f721d1c683e31b2 Mon Sep 17 00:00:00 2001
From: Hal Finkel <hfinkel@anl.gov>
Date: Wed, 15 May 2013 22:20:24 +0000
Subject: [PATCH] undef setjmp in PPCCTRLoops

Trying to unbreak the VS build by copying some undef code from
Utils/LowerInvoke.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181938 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/PowerPC/PPCCTRLoops.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lib/Target/PowerPC/PPCCTRLoops.cpp b/lib/Target/PowerPC/PPCCTRLoops.cpp
index bb969a635ec..ae5d9184605 100644
--- a/lib/Target/PowerPC/PPCCTRLoops.cpp
+++ b/lib/Target/PowerPC/PPCCTRLoops.cpp
@@ -188,7 +188,23 @@ bool PPCCTRLoops::convertToCTRLoop(Loop *L) {
           if (F->getIntrinsicID() != Intrinsic::not_intrinsic) {
             switch (F->getIntrinsicID()) {
             default: continue;
+
+// VisualStudio defines setjmp as _setjmp
+#if defined(_MSC_VER) && defined(setjmp) && \
+                         !defined(setjmp_undefined_for_msvc)
+#  pragma push_macro("setjmp")
+#  undef setjmp
+#  define setjmp_undefined_for_msvc
+#endif
+
             case Intrinsic::setjmp:
+
+#if defined(_MSC_VER) && defined(setjmp_undefined_for_msvc)
+   // let's return it to _setjmp state
+#  pragma pop_macro("setjmp")
+#  undef setjmp_undefined_for_msvc
+#endif
+
             case Intrinsic::longjmp:
             case Intrinsic::memcpy:
             case Intrinsic::memmove: