From 1e9b8d38881c3213d1e67b0c47ab9b2c00721a5c Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Fri, 25 Dec 2015 14:26:58 +0000
Subject: Import clang 3.7.1 release (r255217).

---
 lib/Basic/Targets.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'lib/Basic/Targets.cpp')

diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
index e4db004..9e44f7d 100644
--- a/lib/Basic/Targets.cpp
+++ b/lib/Basic/Targets.cpp
@@ -3968,7 +3968,13 @@ public:
 class MinGWX86_64TargetInfo : public WindowsX86_64TargetInfo {
 public:
   MinGWX86_64TargetInfo(const llvm::Triple &Triple)
-      : WindowsX86_64TargetInfo(Triple) {}
+      : WindowsX86_64TargetInfo(Triple) {
+    // Mingw64 rounds long double size and alignment up to 16 bytes, but sticks
+    // with x86 FP ops. Weird.
+    LongDoubleWidth = LongDoubleAlign = 128;
+    LongDoubleFormat = &llvm::APFloat::x87DoubleExtended;
+  }
+
   void getTargetDefines(const LangOptions &Opts,
                         MacroBuilder &Builder) const override {
     WindowsX86_64TargetInfo::getTargetDefines(Opts, Builder);
-- 
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