From 7e8f9d579ccb8e473855cb466bd77c89fada1483 Mon Sep 17 00:00:00 2001
From: Benjamin Kramer <benny.kra@googlemail.com>
Date: Sat, 24 Aug 2019 15:46:49 +0000
Subject: [PATCH] Try to make MSVC 2017 happy.

AArch64BaseInfo.h(316): error C3615: constexpr function 'llvm::SysAlias::SysAlias' cannot result in a constant expression
AArch64BaseInfo.h(316): note: failure was caused by call of undefined function or one not declared 'constexpr'
AArch64BaseInfo.h(316): note: see usage of 'llvm::FeatureBitset::FeatureBitset'

llvm-svn: 369851
---
 llvm/include/llvm/MC/SubtargetFeature.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/include/llvm/MC/SubtargetFeature.h b/llvm/include/llvm/MC/SubtargetFeature.h
index 9bd94efcb01c..7ce27843c2cd 100644
--- a/llvm/include/llvm/MC/SubtargetFeature.h
+++ b/llvm/include/llvm/MC/SubtargetFeature.h
@@ -50,7 +50,7 @@ protected:
   }
 
 public:
-  FeatureBitset() = default;
+  constexpr FeatureBitset() = default;
   constexpr FeatureBitset(std::initializer_list<unsigned> Init) {
     for (auto I : Init)
       set(I);