From ec54d6121caceaa17aac6b16d8eb00717a66f54a Mon Sep 17 00:00:00 2001
From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 9 Nov 2018 01:32:30 +0000
Subject: [PATCH] Ignore implicit things like ConstantExpr.

llvm-svn: 346461
---
 .../clang-tidy/performance/NoexceptMoveConstructorCheck.cpp    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/clang-tools-extra/clang-tidy/performance/NoexceptMoveConstructorCheck.cpp b/clang-tools-extra/clang-tidy/performance/NoexceptMoveConstructorCheck.cpp
index 111f24d8ebe9..adc5910be446 100644
--- a/clang-tools-extra/clang-tidy/performance/NoexceptMoveConstructorCheck.cpp
+++ b/clang-tools-extra/clang-tidy/performance/NoexceptMoveConstructorCheck.cpp
@@ -58,7 +58,8 @@ void NoexceptMoveConstructorCheck::check(
     // where expr evaluates to false.
     if (ProtoType->canThrow() == CT_Can) {
       Expr *E = ProtoType->getNoexceptExpr();
-      if (!isa<CXXBoolLiteralExpr>(ProtoType->getNoexceptExpr())) {
+      E = E->IgnoreImplicit();
+      if (!isa<CXXBoolLiteralExpr>(E)) {
         diag(E->getExprLoc(),
              "noexcept specifier on the move %0 evaluates to 'false'")
             << MethodType;