Emit 64bits literal imm

Author: wangpc-pp

llvm/test/TableGen/riscv-target-def.td

@@ -166,9 +166,9 @@ def ROCKET : RISCVTuneProcessorModel<"rocket",
 // CHECK-NEXT: #define PROC(ENUM, NAME, DEFAULT_MARCH, FAST_SCALAR_UNALIGN, FAST_VECTOR_UNALIGN, MVENDORID, MARCHID, MIMPID)
 // CHECK-NEXT: #endif
 
-// CHECK:      PROC(GENERIC_RV32, {"generic-rv32"}, {"rv32i2p1"}, 0, 0, 0x00000000, 0x00000000, 0x00000000)
+// CHECK:      PROC(GENERIC_RV32, {"generic-rv32"}, {"rv32i2p1"}, 0, 0, 0x00000000, 0x0000000000000000, 0x0000000000000000)
 // CHECK-NEXT: PROC(GENERIC_RV64, {"generic-rv64"}, {"rv64i2p1"}, 0, 0, 0x00000000, 0x0000000000000000, 0x0000000000000000)
-// CHECK-NEXT: PROC(ROCKET_RV32, {"rocket-rv32"}, {"rv32i2p1_zicsr2p0_zidummy0p1_zifencei2p0"}, 0, 0, 0x00000000, 0x00000000, 0x00000000)
+// CHECK-NEXT: PROC(ROCKET_RV32, {"rocket-rv32"}, {"rv32i2p1_zicsr2p0_zidummy0p1_zifencei2p0"}, 0, 0, 0x00000000, 0x0000000000000000, 0x0000000000000000)
 // CHECK-NEXT: PROC(ROCKET_RV64, {"rocket-rv64"}, {"rv64i2p1_zicsr2p0_zidummy0p1_zifencei2p0"}, 0, 0, 0x00000000, 0x0000000000000000, 0x0000000000000000)
 
 // CHECK: #undef PROC

llvm/utils/TableGen/RISCVTargetDefEmitter.cpp

@@ -183,10 +183,6 @@ static void emitRISCVProcs(const RecordKeeper &RK, raw_ostream &OS) {
       return Feature->getValueAsString("Name") == "unaligned-vector-mem";
     });
 
-    bool IsRV64 = any_of(Features, [&](auto &Feature) {
-      return Feature->getValueAsString("Name") == "64bit";
-    });
-
     OS << "PROC(" << Rec->getName() << ", {\"" << Rec->getValueAsString("Name")
        << "\"}, {\"";
 
@@ -205,8 +201,8 @@ static void emitRISCVProcs(const RecordKeeper &RK, raw_ostream &OS) {
     OS << "\"}, " << FastScalarUnalignedAccess << ", "
        << FastVectorUnalignedAccess;
     OS << ", " << format_hex(MVendorID, 10);
-    OS << ", " << format_hex(MArchID, IsRV64 ? 18 : 10);
-    OS << ", " << format_hex(MImpID, IsRV64 ? 18 : 10);
+    OS << ", " << format_hex(MArchID, 18);
+    OS << ", " << format_hex(MImpID, 18);
     OS << ")\n";
   }
   OS << "\n#undef PROC\n";