[clang] b8409c0 - Fix `-Wreturn-type` warning. NFC.

[Michael Liao via cfe-commits]

Author: Michael Liao
Date: 2020-07-11T16:20:41-04:00
New Revision: b8409c03ed90807f3d49c7d98dceea98cf461f7a

URL: https://github.com/llvm/llvm-project/commit/b8409c03ed90807f3d49c7d98dceea98cf461f7a
DIFF: https://github.com/llvm/llvm-project/commit/b8409c03ed90807f3d49c7d98dceea98cf461f7a.diff

LOG: Fix `-Wreturn-type` warning. NFC.

Added: 
    

Modified: 
    clang/lib/Tooling/Syntax/BuildTree.cpp

Removed: 
    


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diff  --git a/clang/lib/Tooling/Syntax/BuildTree.cpp b/clang/lib/Tooling/Syntax/BuildTree.cpp
index 6d13f1ace83b..1f192180ec45 100644
--- a/clang/lib/Tooling/Syntax/BuildTree.cpp
+++ b/clang/lib/Tooling/Syntax/BuildTree.cpp
@@ -750,6 +750,7 @@ class BuildTreeVisitor : public RecursiveASTVisitor<BuildTreeVisitor> {
         return new (allocator()) syntax::FloatUserDefinedLiteralExpression;
       }
     }
+    llvm_unreachable("Unknown literal operator kind.");
   }
 
   bool WalkUpFromUserDefinedLiteral(UserDefinedLiteral *S) {