r304642 - Added LLVM_FALLTHROUGH to address warning: this statement may fall through + formatted. NFC.

[Galina Kistanova via cfe-commits]

Author: gkistanova
Date: Sat Jun  3 01:25:29 2017
New Revision: 304642

URL: http://llvm.org/viewvc/llvm-project?rev=304642&view=rev
Log:
Added LLVM_FALLTHROUGH to address warning: this statement may fall through + formatted. NFC.

Modified:
    cfe/trunk/lib/Lex/LiteralSupport.cpp

Modified: cfe/trunk/lib/Lex/LiteralSupport.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Lex/LiteralSupport.cpp?rev=304642&r1=304641&r2=304642&view=diff
==============================================================================
--- cfe/trunk/lib/Lex/LiteralSupport.cpp (original)
+++ cfe/trunk/lib/Lex/LiteralSupport.cpp Sat Jun  3 01:25:29 2017
@@ -456,10 +456,17 @@ static void EncodeUCNEscape(const char *
   // Finally, we write the bytes into ResultBuf.
   ResultBuf += bytesToWrite;
   switch (bytesToWrite) { // note: everything falls through.
-  case 4: *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-  case 3: *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-  case 2: *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-  case 1: *--ResultBuf = (UTF8) (UcnVal | firstByteMark[bytesToWrite]);
+  case 4:
+    *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
+    LLVM_FALLTHROUGH;
+  case 3:
+    *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
+    LLVM_FALLTHROUGH;
+  case 2:
+    *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
+    LLVM_FALLTHROUGH;
+  case 1:
+    *--ResultBuf = (UTF8) (UcnVal | firstByteMark[bytesToWrite]);
   }
   // Update the buffer.
   ResultBuf += bytesToWrite;