LLVM_FALLTHROUGH => [[fallthrough]]. NFC

Author: MaskRay

clang-tools-extra/clangd/CodeCompletionStrings.cpp

@@ -253,7 +253,7 @@ void getSignature(const CodeCompletionString &CCS, std::string *Signature,
       if (!IncludeFunctionArguments &&
           ResultKind == CodeCompletionResult::RK_Declaration)
         TruncateSnippetAt.emplace(Snippet->size());
-      LLVM_FALLTHROUGH;
+      [[fallthrough]];
     case CodeCompletionString::CK_RightParen:
     case CodeCompletionString::CK_LeftBracket:
     case CodeCompletionString::CK_RightBracket:

lldb/source/Plugins/LanguageRuntime/ObjC/AppleObjCRuntime/AppleObjCRuntimeV2.cpp

@@ -1869,15 +1869,15 @@ AppleObjCRuntimeV2::DynamicClassInfoExtractor::ComputeHelper(
       if (loader->IsFullyInitialized()) {
         switch (exe_ctx.GetTargetRef().GetDynamicClassInfoHelper()) {
         case eDynamicClassInfoHelperAuto:
-          LLVM_FALLTHROUGH;
+          [[fallthrough]];
         case eDynamicClassInfoHelperGetRealizedClassList:
           if (m_runtime.m_has_objc_getRealizedClassList_trylock)
             return DynamicClassInfoExtractor::objc_getRealizedClassList_trylock;
-          LLVM_FALLTHROUGH;
+          [[fallthrough]];
         case eDynamicClassInfoHelperCopyRealizedClassList:
           if (m_runtime.m_has_objc_copyRealizedClassList)
             return DynamicClassInfoExtractor::objc_copyRealizedClassList;
-          LLVM_FALLTHROUGH;
+          [[fallthrough]];
         case eDynamicClassInfoHelperRealizedClassesStruct:
           return DynamicClassInfoExtractor::gdb_objc_realized_classes;
         }

llvm/include/llvm/IR/GenericConvergenceVerifierImpl.h

@@ -76,7 +76,7 @@ void GenericConvergenceVerifier<ContextT>::visit(const InstructionT &I) {
           "Entry intrinsic cannot be preceded by a convergent operation in the "
           "same basic block.",
           {Context.print(&I)});
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case CONV_ANCHOR:
     Check(!TokenDef,
           "Entry or anchor intrinsic cannot have a convergencectrl token "

llvm/lib/CodeGen/GlobalISel/IRTranslator.cpp

@@ -2223,7 +2223,7 @@ bool IRTranslator::translateKnownIntrinsic(const CallInst &CI, Intrinsic::ID ID,
     // addresses. We can treat it like a normal dbg_value intrinsic here; to
     // benefit from the full analysis of stack/SSA locations, GlobalISel would
     // need to register for and use the AssignmentTrackingAnalysis pass.
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case Intrinsic::dbg_value: {
     // This form of DBG_VALUE is target-independent.
     const DbgValueInst &DI = cast<DbgValueInst>(CI);

llvm/lib/CodeGen/SelectionDAG/FastISel.cpp

@@ -1424,7 +1424,7 @@ bool FastISel::selectIntrinsicCall(const IntrinsicInst *II) {
     // happened (such as an optimised function being always-inlined into an
     // optnone function). We will not be using the extra information in the
     // dbg.assign in that case, just use its dbg.value fields.
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case Intrinsic::dbg_value: {
     // This form of DBG_VALUE is target-independent.
     const DbgValueInst *DI = cast<DbgValueInst>(II);

llvm/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp

@@ -3195,7 +3195,7 @@ bool SelectionDAGLegalize::ExpandNode(SDNode *Node) {
       break;
     }
 
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   }
   case ISD::BITCAST:
     if ((Tmp1 = EmitStackConvert(Node->getOperand(0), Node->getValueType(0),

llvm/lib/Support/regcomp.c

@@ -538,7 +538,7 @@ p_ere_exp(struct parse *p)
 		break;
 	case '{':		/* okay as ordinary except if digit follows */
 		REQUIRE(!MORE() || !isdigit((uch)PEEK()), REG_BADRPT);
-		LLVM_FALLTHROUGH;
+		[[fallthrough]];
 	default:
 		ordinary(p, c);
 		break;
@@ -734,7 +734,7 @@ p_simp_re(struct parse *p,
 		break;
 	case '*':
 		REQUIRE(starordinary, REG_BADRPT);
-		LLVM_FALLTHROUGH;
+		[[fallthrough]];
 	default:
 		ordinary(p, (char)c);
 		break;
@@ -1634,7 +1634,7 @@ findmust(struct parse *p, struct re_guts *g)
 					return;
 				}
 			} while (OP(s) != O_QUEST && OP(s) != O_CH);
-			LLVM_FALLTHROUGH;
+			[[fallthrough]];
 		default:		/* things that break a sequence */
 			if (newlen > g->mlen) {		/* ends one */
 				start = newstart;

llvm/lib/Target/AArch64/AArch64FrameLowering.cpp

@@ -1296,7 +1296,7 @@ static MachineBasicBlock::iterator InsertSEH(MachineBasicBlock::iterator MBBI,
   }
   case AArch64::LDPQpost:
     Imm = -Imm;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case AArch64::STPQpre: {
     unsigned Reg0 = RegInfo->getSEHRegNum(MBBI->getOperand(1).getReg());
     unsigned Reg1 = RegInfo->getSEHRegNum(MBBI->getOperand(2).getReg());

llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp

@@ -2261,7 +2261,7 @@ void AMDGPURegisterBankInfo::applyMappingImpl(
   case AMDGPU::G_FCMP:
     if (!Subtarget.hasSALUFloatInsts())
       break;
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case AMDGPU::G_ICMP:
   case AMDGPU::G_UADDO:
   case AMDGPU::G_USUBO:

llvm/lib/Target/ARM/AsmParser/ARMAsmParser.cpp

@@ -11104,7 +11104,7 @@ ARMAsmParser::checkEarlyTargetMatchPredicate(MCInst &Inst,
       return Match_MnemonicFail;
     }
   }
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   default:
     return Match_Success;
   }

llvm/lib/Target/SystemZ/SystemZISelLowering.cpp

@@ -9631,7 +9631,7 @@ SDValue SystemZTargetLowering::lowerVECREDUCE_ADD(SDValue Op,
   case 8:
   case 16:
     Op = DAG.getNode(SystemZISD::VSUM, DL, MVT::v4i32, Op, Zero);
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   case 32:
   case 64:
     Op = DAG.getNode(SystemZISD::VSUM, DL, MVT::i128, Op,

llvm/utils/TableGen/DXILEmitter.cpp

@@ -97,7 +97,7 @@ static ParameterKind getParameterKind(const Record *R) {
     if (R->getValueAsInt("isHalfOrFloat") || R->getValueAsInt("isI16OrI32")) {
       return ParameterKind::Overload;
     }
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   default:
     llvm_unreachable("Support for specified DXIL Type not yet implemented");
   }
@@ -272,7 +272,7 @@ static std::string getOverloadKindStr(const Record *R) {
         return "OverloadKind::I16 | OverloadKind::I32";
       }
     }
-    LLVM_FALLTHROUGH;
+    [[fallthrough]];
   default:
     llvm_unreachable(
         "Support for specified parameter OverloadKind not yet implemented");