[RISCV][Clang] Refactor RISCVVEmitter. (NFC)

Remove MaskedPrototype and add several fields in RVVIntrinsicRecord,
compute Prototype in runtime.

Reviewed By: rogfer01

Differential Revision: https://reviews.llvm.org/D126741

clang/include/clang/Support/RISCVVIntrinsicUtils.h

@@ -371,9 +371,6 @@ struct RVVIntrinsicRecord {
   // Prototype for this intrinsic, index of RVVSignatureTable.
   uint16_t PrototypeIndex;
 
-  // Prototype for masked intrinsic, index of RVVSignatureTable.
-  uint16_t MaskedPrototypeIndex;
-
   // Suffix of intrinsic name, index of RVVSignatureTable.
   uint16_t SuffixIndex;
 
@@ -383,9 +380,6 @@ struct RVVIntrinsicRecord {
   // Length of the prototype.
   uint8_t PrototypeLength;
 
-  // Length of prototype of masked intrinsic.
-  uint8_t MaskedPrototypeLength;
-
   // Length of intrinsic name suffix.
   uint8_t SuffixLength;
 
@@ -403,6 +397,10 @@ struct RVVIntrinsicRecord {
 
   // Number of fields, greater than 1 if it's segment load/store.
   uint8_t NF;
+
+  bool HasMasked : 1;
+  bool HasVL : 1;
+  bool HasMaskedOffOperand : 1;
 };
 
 llvm::raw_ostream &operator<<(llvm::raw_ostream &OS,

clang/lib/Sema/SemaRISCVVectorLookup.cpp

@@ -178,14 +178,23 @@ void RISCVIntrinsicManagerImpl::InitIntrinsicList() {
   for (auto &Record : RVVIntrinsicRecords) {
     // Create Intrinsics for each type and LMUL.
     BasicType BaseType = BasicType::Unknown;
-    ArrayRef<PrototypeDescriptor> ProtoSeq =
+    ArrayRef<PrototypeDescriptor> BasicProtoSeq =
         ProtoSeq2ArrayRef(Record.PrototypeIndex, Record.PrototypeLength);
-    ArrayRef<PrototypeDescriptor> ProtoMaskSeq = ProtoSeq2ArrayRef(
-        Record.MaskedPrototypeIndex, Record.MaskedPrototypeLength);
     ArrayRef<PrototypeDescriptor> SuffixProto =
         ProtoSeq2ArrayRef(Record.SuffixIndex, Record.SuffixLength);
     ArrayRef<PrototypeDescriptor> OverloadedSuffixProto = ProtoSeq2ArrayRef(
         Record.OverloadedSuffixIndex, Record.OverloadedSuffixSize);
+
+    llvm::SmallVector<PrototypeDescriptor> ProtoSeq =
+        RVVIntrinsic::computeBuiltinTypes(BasicProtoSeq, /*IsMasked=*/false,
+                                          /*HasMaskedOffOperand=*/false,
+                                          Record.HasVL, Record.NF);
+
+    llvm::SmallVector<PrototypeDescriptor> ProtoMaskSeq =
+        RVVIntrinsic::computeBuiltinTypes(BasicProtoSeq, /*IsMasked=*/true,
+                                          Record.HasMaskedOffOperand,
+                                          Record.HasVL, Record.NF);
+
     for (unsigned int TypeRangeMaskShift = 0;
          TypeRangeMaskShift <= static_cast<unsigned int>(BasicType::MaxOffset);
          ++TypeRangeMaskShift) {
@@ -235,7 +244,7 @@ void RISCVIntrinsicManagerImpl::InitIntrinsicList() {
         // Create non-masked intrinsic.
         InitRVVIntrinsic(Record, SuffixStr, OverloadedSuffixStr, false, *Types);
 
-        if (Record.MaskedPrototypeLength != 0) {
+        if (Record.HasMasked) {
           // Create masked intrinsic.
           Optional<RVVTypes> MaskTypes = RVVType::computeTypes(
               BaseType, Log2LMUL, Record.NF, ProtoMaskSeq);

clang/lib/Support/RISCVVIntrinsicUtils.cpp

@@ -981,17 +981,18 @@ raw_ostream &operator<<(raw_ostream &OS, const RVVIntrinsicRecord &Record) {
   else
     OS << "\"" << Record.OverloadedName << "\",";
   OS << Record.PrototypeIndex << ",";
-  OS << Record.MaskedPrototypeIndex << ",";
   OS << Record.SuffixIndex << ",";
   OS << Record.OverloadedSuffixIndex << ",";
   OS << (int)Record.PrototypeLength << ",";
-  OS << (int)Record.MaskedPrototypeLength << ",";
   OS << (int)Record.SuffixLength << ",";
   OS << (int)Record.OverloadedSuffixSize << ",";
   OS << (int)Record.RequiredExtensions << ",";
   OS << (int)Record.TypeRangeMask << ",";
   OS << (int)Record.Log2LMULMask << ",";
   OS << (int)Record.NF << ",";
+  OS << (int)Record.HasMasked << ",";
+  OS << (int)Record.HasVL << ",";
+  OS << (int)Record.HasMaskedOffOperand << ",";
   OS << "},\n";
   return OS;
 }

clang/utils/TableGen/RISCVVEmitter.cpp

@@ -50,9 +50,6 @@ struct SemaRecord {
   // Prototype for this intrinsic.
   SmallVector<PrototypeDescriptor> Prototype;
 
-  // Prototype for masked intrinsic.
-  SmallVector<PrototypeDescriptor> MaskedPrototype;
-
   // Suffix of intrinsic name.
   SmallVector<PrototypeDescriptor> Suffix;
 
@@ -61,6 +58,10 @@ struct SemaRecord {
 
   // Number of field, large than 1 if it's segment load/store.
   unsigned NF;
+
+  bool HasMasked :1;
+  bool HasVL :1;
+  bool HasMaskedOffOperand :1;
 };
 
 // Compressed function signature table.
@@ -241,7 +242,6 @@ void SemaSignatureTable::init(ArrayRef<SemaRecord> SemaRecords) {
 
   llvm::for_each(SemaRecords, [&](const SemaRecord &SR) {
     InsertToSignatureSet(SR.Prototype);
-    InsertToSignatureSet(SR.MaskedPrototype);
     InsertToSignatureSet(SR.Suffix);
     InsertToSignatureSet(SR.OverloadedSuffix);
   });
@@ -583,12 +583,10 @@ void RVVEmitter::createRVVIntrinsics(
     }
 
     SR.NF = NF;
-
-    SR.Prototype = std::move(Prototype);
-
-    if (HasMasked)
-      SR.MaskedPrototype = std::move(MaskedPrototype);
-
+    SR.HasMasked = HasMasked;
+    SR.HasVL = HasVL;
+    SR.HasMaskedOffOperand = HasMaskedOffOperand;
+    SR.Prototype = std::move(BasicPrototype);
     SR.Suffix = parsePrototypes(SuffixProto);
     SR.OverloadedSuffix = parsePrototypes(OverloadedSuffixProto);
 
@@ -616,22 +614,21 @@ void RVVEmitter::createRVVIntrinsicRecords(std::vector<RVVIntrinsicRecord> &Out,
     R.Name = SR.Name.c_str();
     R.OverloadedName = SR.OverloadedName.c_str();
     R.PrototypeIndex = SST.getIndex(SR.Prototype);
-    R.MaskedPrototypeIndex = SST.getIndex(SR.MaskedPrototype);
     R.SuffixIndex = SST.getIndex(SR.Suffix);
     R.OverloadedSuffixIndex = SST.getIndex(SR.OverloadedSuffix);
     R.PrototypeLength = SR.Prototype.size();
-    R.MaskedPrototypeLength = SR.MaskedPrototype.size();
     R.SuffixLength = SR.Suffix.size();
     R.OverloadedSuffixSize = SR.OverloadedSuffix.size();
     R.RequiredExtensions = SR.RequiredExtensions;
     R.TypeRangeMask = SR.TypeRangeMask;
     R.Log2LMULMask = SR.Log2LMULMask;
     R.NF = SR.NF;
+    R.HasMasked = SR.HasMasked;
+    R.HasVL = SR.HasVL;
+    R.HasMaskedOffOperand = SR.HasMaskedOffOperand;
 
     assert(R.PrototypeIndex !=
            static_cast<uint16_t>(SemaSignatureTable::INVALID_INDEX));
-    assert(R.MaskedPrototypeIndex !=
-           static_cast<uint16_t>(SemaSignatureTable::INVALID_INDEX));
     assert(R.SuffixIndex !=
            static_cast<uint16_t>(SemaSignatureTable::INVALID_INDEX));
     assert(R.OverloadedSuffixIndex !=