[clang] LLVM_FALLTHROUGH => [[fallthrough]]. NFC

With C++17 there is no Clang pedantic warning or MSVC C5051.

Reviewed By: aaron.ballman

Differential Revision: https://reviews.llvm.org/D131346

6 files changed, 12 insertions, 12 deletions

diff --git a/clang/lib/Lex/InitHeaderSearch.cpp b/clang/lib/Lex/InitHeaderSearch.cpp
index 158b566..cd32763 100644
--- a/clang/lib/Lex/InitHeaderSearch.cpp
+++ b/clang/lib/Lex/InitHeaderSearch.cpp
@@ -246,7 +246,7 @@ void InitHeaderSearch::AddDefaultCIncludePaths(const llvm::Triple &triple,
     case llvm::Triple::Win32:
       if (triple.getEnvironment() != llvm::Triple::Cygnus)
         break;
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     default:
       // FIXME: temporary hack: hard-coded paths.
       AddPath("/usr/local/include", System, false);
diff --git a/clang/lib/Lex/Lexer.cpp b/clang/lib/Lex/Lexer.cpp
index 64655b9..83c31bc 100644
--- a/clang/lib/Lex/Lexer.cpp
+++ b/clang/lib/Lex/Lexer.cpp
@@ -2905,7 +2905,7 @@ void Lexer::ReadToEndOfLine(SmallVectorImpl<char> *Result) {
         break;
       }
       // FALL THROUGH.
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     case '\r':
     case '\n':
       // Okay, we found the end of the line. First, back up past the \0, \r, \n.
@@ -3591,7 +3591,7 @@ LexNextToken:
   case '\r':
     if (CurPtr[0] == '\n')
       (void)getAndAdvanceChar(CurPtr, Result);
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case '\n':
     // If we are inside a preprocessor directive and we see the end of line,
     // we know we are done with the directive, so return an EOD token.
@@ -3788,7 +3788,7 @@ LexNextToken:
       return LexCharConstant(Result, ConsumeChar(CurPtr, SizeTmp, Result),
                              tok::wide_char_constant);
     // FALL THROUGH, treating L like the start of an identifier.
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
 
   // C99 6.4.2: Identifiers.
   case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
diff --git a/clang/lib/Lex/LiteralSupport.cpp b/clang/lib/Lex/LiteralSupport.cpp
index 53635a7..1a48a68 100644
--- a/clang/lib/Lex/LiteralSupport.cpp
+++ b/clang/lib/Lex/LiteralSupport.cpp
@@ -766,13 +766,13 @@ static void EncodeUCNEscape(const char *ThisTokBegin, const char *&ThisTokBuf,
   switch (bytesToWrite) { // note: everything falls through.
   case 4:
     *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case 3:
     *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case 2:
     *--ResultBuf = (UTF8)((UcnVal | byteMark) & byteMask); UcnVal >>= 6;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case 1:
     *--ResultBuf = (UTF8) (UcnVal | firstByteMark[bytesToWrite]);
   }
@@ -1037,7 +1037,7 @@ NumericLiteralParser::NumericLiteralParser(StringRef TokSpelling,
           break;
         }
       }
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     case 'j':
     case 'J':
       if (isImaginary) break;   // Cannot be repeated.
diff --git a/clang/lib/Lex/ModuleMap.cpp b/clang/lib/Lex/ModuleMap.cpp
index 47d6f58..3698a8c 100644
--- a/clang/lib/Lex/ModuleMap.cpp
+++ b/clang/lib/Lex/ModuleMap.cpp
@@ -1668,7 +1668,7 @@ retry:
         break;
       }
     }
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
 
   default:
     Diags.Report(Tok.getLocation(), diag::err_mmap_unknown_token);
diff --git a/clang/lib/Lex/Preprocessor.cpp b/clang/lib/Lex/Preprocessor.cpp
index 5310db3..8c4859d 100644
--- a/clang/lib/Lex/Preprocessor.cpp
+++ b/clang/lib/Lex/Preprocessor.cpp
@@ -986,7 +986,7 @@ void Preprocessor::Lex(Token &Result) {
         TrackGMFState.handleModule(ImportSeqState.afterTopLevelSeq());
         break;
       }
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     default:
       TrackGMFState.handleMisc();
       ImportSeqState.handleMisc();
@@ -1232,7 +1232,7 @@ bool Preprocessor::LexAfterModuleImport(Token &Result) {
       Suffix.back().setLocation(SemiLoc);
       Suffix.back().setAnnotationEndLoc(SemiLoc);
       Suffix.back().setAnnotationValue(Action.ModuleForHeader);
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
 
     case ImportAction::ModuleImport:
     case ImportAction::HeaderUnitImport:
diff --git a/clang/lib/Lex/TokenConcatenation.cpp b/clang/lib/Lex/TokenConcatenation.cpp
index f6b005d..1b3201b 100644
--- a/clang/lib/Lex/TokenConcatenation.cpp
+++ b/clang/lib/Lex/TokenConcatenation.cpp
@@ -240,7 +240,7 @@ bool TokenConcatenation::AvoidConcat(const Token &PrevPrevTok,
     // it as an identifier.
     if (!PrevTok.hasUDSuffix())
       return false;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case tok::identifier:   // id+id or id+number or id+L"foo".
     // id+'.'... will not append.
     if (Tok.is(tok::numeric_constant))