From: Karl-Johan Karlsson <karl-johan.karlsson@ericsson.com>
Date: Fri, 3 Aug 2018 09:13:15 +0000 (+0000)
Subject: Fix unused variable warning in tablegen generated code
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bf40a7d591448c74a81fc3f8657667ac69994ac7;p=clang

Fix unused variable warning in tablegen generated code

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@338831 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/utils/TableGen/ClangAttrEmitter.cpp b/utils/TableGen/ClangAttrEmitter.cpp
index 6b3df82580..0426ecb34c 100644
--- a/utils/TableGen/ClangAttrEmitter.cpp
+++ b/utils/TableGen/ClangAttrEmitter.cpp
@@ -3274,11 +3274,15 @@ static std::string GenerateCustomAppertainsTo(const Record &Subject,
     return "";
   }
 
+  const StringRef CheckCodeValue = Subject.getValueAsString("CheckCode");
+
   OS << "static bool " << FnName << "(const Decl *D) {\n";
-  OS << "  if (const auto *S = dyn_cast<";
-  OS << GetSubjectWithSuffix(Base);
-  OS << ">(D))\n";
-  OS << "    return " << Subject.getValueAsString("CheckCode") << ";\n";
+  if (CheckCodeValue != "false") {
+    OS << "  if (const auto *S = dyn_cast<";
+    OS << GetSubjectWithSuffix(Base);
+    OS << ">(D))\n";
+    OS << "    return " << Subject.getValueAsString("CheckCode") << ";\n";
+  }
   OS << "  return false;\n";
   OS << "}\n\n";