bool vmIntrinsics::disabled_by_jvm_flags()

in src/hotspot/share/classfile/vmIntrinsics.cpp [212:640]

• 422 lines of code
• 367 McCabe index (conditional complexity)

bool vmIntrinsics::disabled_by_jvm_flags(vmIntrinsics::ID id) {
  assert(id != vmIntrinsics::_none, "must be a VM intrinsic");

  // -XX:-InlineNatives disables nearly all intrinsics except the ones listed in
  // the following switch statement.
  if (!InlineNatives) {
    switch (id) {
    case vmIntrinsics::_indexOfL:
    case vmIntrinsics::_indexOfU:
    case vmIntrinsics::_indexOfUL:
    case vmIntrinsics::_indexOfIL:
    case vmIntrinsics::_indexOfIU:
    case vmIntrinsics::_indexOfIUL:
    case vmIntrinsics::_indexOfU_char:
    case vmIntrinsics::_indexOfL_char:
    case vmIntrinsics::_compareToL:
    case vmIntrinsics::_compareToU:
    case vmIntrinsics::_compareToLU:
    case vmIntrinsics::_compareToUL:
    case vmIntrinsics::_equalsL:
    case vmIntrinsics::_equalsC:
    case vmIntrinsics::_vectorizedHashCode:
    case vmIntrinsics::_getCharStringU:
    case vmIntrinsics::_putCharStringU:
    case vmIntrinsics::_compressStringC:
    case vmIntrinsics::_compressStringB:
    case vmIntrinsics::_inflateStringC:
    case vmIntrinsics::_inflateStringB:
    case vmIntrinsics::_getAndAddInt:
    case vmIntrinsics::_getAndAddLong:
    case vmIntrinsics::_getAndSetInt:
    case vmIntrinsics::_getAndSetLong:
    case vmIntrinsics::_getAndSetReference:
    case vmIntrinsics::_loadFence:
    case vmIntrinsics::_storeFence:
    case vmIntrinsics::_fullFence:
    case vmIntrinsics::_countPositives:
    case vmIntrinsics::_Reference_get0:
    case vmIntrinsics::_Continuation_doYield:
    case vmIntrinsics::_Continuation_enterSpecial:
    case vmIntrinsics::_Continuation_pin:
    case vmIntrinsics::_Continuation_unpin:
      break;
    default:
      return true;
    }
  }

  switch (id) {
  case vmIntrinsics::_isInstance:
  case vmIntrinsics::_isAssignableFrom:
  case vmIntrinsics::_isHidden:
  case vmIntrinsics::_getSuperclass:
  case vmIntrinsics::_Class_cast:
  case vmIntrinsics::_getLength:
  case vmIntrinsics::_newArray:
  case vmIntrinsics::_getClass:
    if (!InlineClassNatives) return true;
    break;
  case vmIntrinsics::_currentCarrierThread:
  case vmIntrinsics::_currentThread:
    if (!InlineThreadNatives) return true;
    break;
  case vmIntrinsics::_setCurrentThread:
  case vmIntrinsics::_scopedValueCache:
  case vmIntrinsics::_setScopedValueCache:
  case vmIntrinsics::_floatToRawIntBits:
  case vmIntrinsics::_intBitsToFloat:
  case vmIntrinsics::_doubleToRawLongBits:
  case vmIntrinsics::_longBitsToDouble:
  case vmIntrinsics::_ceil:
  case vmIntrinsics::_floor:
  case vmIntrinsics::_rint:
  case vmIntrinsics::_dabs:
  case vmIntrinsics::_fabs:
  case vmIntrinsics::_iabs:
  case vmIntrinsics::_labs:
  case vmIntrinsics::_dsqrt:
  case vmIntrinsics::_dsqrt_strict:
  case vmIntrinsics::_dsin:
  case vmIntrinsics::_dcos:
  case vmIntrinsics::_dtan:
  case vmIntrinsics::_dlog:
  case vmIntrinsics::_dexp:
  case vmIntrinsics::_dpow:
  case vmIntrinsics::_dlog10:
  case vmIntrinsics::_datan2:
  case vmIntrinsics::_floatToIntBits:
  case vmIntrinsics::_doubleToLongBits:
  case vmIntrinsics::_min:
  case vmIntrinsics::_max:
  case vmIntrinsics::_maxF:
  case vmIntrinsics::_minF:
  case vmIntrinsics::_maxD:
  case vmIntrinsics::_minD:
  case vmIntrinsics::_min_strict:
  case vmIntrinsics::_max_strict:
  case vmIntrinsics::_maxF_strict:
  case vmIntrinsics::_minF_strict:
  case vmIntrinsics::_maxD_strict:
  case vmIntrinsics::_minD_strict:
    if (!InlineMathNatives) return true;
    break;
  case vmIntrinsics::_fmaD:
  case vmIntrinsics::_fmaF:
    if (!InlineMathNatives || !UseFMA) return true;
    break;
  case vmIntrinsics::_dsinh:
  case vmIntrinsics::_dtanh:
  case vmIntrinsics::_dcbrt:
    if (!InlineMathNatives || !InlineIntrinsics) return true;
#if defined(AMD64) && (defined(COMPILER1) || defined(COMPILER2))
    if (!UseLibmIntrinsic) return true;
#endif
    break;
  case vmIntrinsics::_floatToFloat16:
  case vmIntrinsics::_float16ToFloat:
    if (!InlineIntrinsics) return true;
    break;
  case vmIntrinsics::_arraycopy:
    if (!InlineArrayCopy) return true;
    break;
  case vmIntrinsics::_updateCRC32:
  case vmIntrinsics::_updateBytesCRC32:
  case vmIntrinsics::_updateByteBufferCRC32:
    if (!UseCRC32Intrinsics) return true;
    break;
  case vmIntrinsics::_getReference:
  case vmIntrinsics::_getBoolean:
  case vmIntrinsics::_getByte:
  case vmIntrinsics::_getShort:
  case vmIntrinsics::_getChar:
  case vmIntrinsics::_getInt:
  case vmIntrinsics::_getLong:
  case vmIntrinsics::_getFloat:
  case vmIntrinsics::_getDouble:
  case vmIntrinsics::_putReference:
  case vmIntrinsics::_putBoolean:
  case vmIntrinsics::_putByte:
  case vmIntrinsics::_putShort:
  case vmIntrinsics::_putChar:
  case vmIntrinsics::_putInt:
  case vmIntrinsics::_putLong:
  case vmIntrinsics::_putFloat:
  case vmIntrinsics::_putDouble:
  case vmIntrinsics::_getReferenceVolatile:
  case vmIntrinsics::_getBooleanVolatile:
  case vmIntrinsics::_getByteVolatile:
  case vmIntrinsics::_getShortVolatile:
  case vmIntrinsics::_getCharVolatile:
  case vmIntrinsics::_getIntVolatile:
  case vmIntrinsics::_getLongVolatile:
  case vmIntrinsics::_getFloatVolatile:
  case vmIntrinsics::_getDoubleVolatile:
  case vmIntrinsics::_putReferenceVolatile:
  case vmIntrinsics::_putBooleanVolatile:
  case vmIntrinsics::_putByteVolatile:
  case vmIntrinsics::_putShortVolatile:
  case vmIntrinsics::_putCharVolatile:
  case vmIntrinsics::_putIntVolatile:
  case vmIntrinsics::_putLongVolatile:
  case vmIntrinsics::_putFloatVolatile:
  case vmIntrinsics::_putDoubleVolatile:
  case vmIntrinsics::_getReferenceAcquire:
  case vmIntrinsics::_getBooleanAcquire:
  case vmIntrinsics::_getByteAcquire:
  case vmIntrinsics::_getShortAcquire:
  case vmIntrinsics::_getCharAcquire:
  case vmIntrinsics::_getIntAcquire:
  case vmIntrinsics::_getLongAcquire:
  case vmIntrinsics::_getFloatAcquire:
  case vmIntrinsics::_getDoubleAcquire:
  case vmIntrinsics::_putReferenceRelease:
  case vmIntrinsics::_putBooleanRelease:
  case vmIntrinsics::_putByteRelease:
  case vmIntrinsics::_putShortRelease:
  case vmIntrinsics::_putCharRelease:
  case vmIntrinsics::_putIntRelease:
  case vmIntrinsics::_putLongRelease:
  case vmIntrinsics::_putFloatRelease:
  case vmIntrinsics::_putDoubleRelease:
  case vmIntrinsics::_getReferenceOpaque:
  case vmIntrinsics::_getBooleanOpaque:
  case vmIntrinsics::_getByteOpaque:
  case vmIntrinsics::_getShortOpaque:
  case vmIntrinsics::_getCharOpaque:
  case vmIntrinsics::_getIntOpaque:
  case vmIntrinsics::_getLongOpaque:
  case vmIntrinsics::_getFloatOpaque:
  case vmIntrinsics::_getDoubleOpaque:
  case vmIntrinsics::_putReferenceOpaque:
  case vmIntrinsics::_putBooleanOpaque:
  case vmIntrinsics::_putByteOpaque:
  case vmIntrinsics::_putShortOpaque:
  case vmIntrinsics::_putCharOpaque:
  case vmIntrinsics::_putIntOpaque:
  case vmIntrinsics::_putLongOpaque:
  case vmIntrinsics::_putFloatOpaque:
  case vmIntrinsics::_putDoubleOpaque:
  case vmIntrinsics::_getAndAddInt:
  case vmIntrinsics::_getAndAddLong:
  case vmIntrinsics::_getAndSetInt:
  case vmIntrinsics::_getAndSetLong:
  case vmIntrinsics::_getAndSetReference:
  case vmIntrinsics::_loadFence:
  case vmIntrinsics::_storeFence:
  case vmIntrinsics::_fullFence:
  case vmIntrinsics::_compareAndSetLong:
  case vmIntrinsics::_weakCompareAndSetLong:
  case vmIntrinsics::_weakCompareAndSetLongPlain:
  case vmIntrinsics::_weakCompareAndSetLongAcquire:
  case vmIntrinsics::_weakCompareAndSetLongRelease:
  case vmIntrinsics::_compareAndSetInt:
  case vmIntrinsics::_weakCompareAndSetInt:
  case vmIntrinsics::_weakCompareAndSetIntPlain:
  case vmIntrinsics::_weakCompareAndSetIntAcquire:
  case vmIntrinsics::_weakCompareAndSetIntRelease:
  case vmIntrinsics::_compareAndSetReference:
  case vmIntrinsics::_weakCompareAndSetReference:
  case vmIntrinsics::_weakCompareAndSetReferencePlain:
  case vmIntrinsics::_weakCompareAndSetReferenceAcquire:
  case vmIntrinsics::_weakCompareAndSetReferenceRelease:
  case vmIntrinsics::_compareAndExchangeInt:
  case vmIntrinsics::_compareAndExchangeIntAcquire:
  case vmIntrinsics::_compareAndExchangeIntRelease:
  case vmIntrinsics::_compareAndExchangeLong:
  case vmIntrinsics::_compareAndExchangeLongAcquire:
  case vmIntrinsics::_compareAndExchangeLongRelease:
  case vmIntrinsics::_compareAndExchangeReference:
  case vmIntrinsics::_compareAndExchangeReferenceAcquire:
  case vmIntrinsics::_compareAndExchangeReferenceRelease:
  case vmIntrinsics::_allocateInstance:
    if (!InlineUnsafeOps) return true;
    break;
  case vmIntrinsics::_getShortUnaligned:
  case vmIntrinsics::_getCharUnaligned:
  case vmIntrinsics::_getIntUnaligned:
  case vmIntrinsics::_getLongUnaligned:
  case vmIntrinsics::_putShortUnaligned:
  case vmIntrinsics::_putCharUnaligned:
  case vmIntrinsics::_putIntUnaligned:
  case vmIntrinsics::_putLongUnaligned:
    if (!InlineUnsafeOps || !UseUnalignedAccesses) return true;
    break;
  case vmIntrinsics::_hashCode:
    if (!InlineObjectHash) return true;
    break;
  case vmIntrinsics::_aescrypt_encryptBlock:
  case vmIntrinsics::_aescrypt_decryptBlock:
    if (!UseAESIntrinsics) return true;
    break;
  case vmIntrinsics::_cipherBlockChaining_encryptAESCrypt:
  case vmIntrinsics::_cipherBlockChaining_decryptAESCrypt:
    if (!UseAESIntrinsics) return true;
    break;
  case vmIntrinsics::_electronicCodeBook_encryptAESCrypt:
  case vmIntrinsics::_electronicCodeBook_decryptAESCrypt:
    if (!UseAESIntrinsics) return true;
    break;
  case vmIntrinsics::_counterMode_AESCrypt:
    if (!UseAESCTRIntrinsics) return true;
    break;
  case vmIntrinsics::_galoisCounterMode_AESCrypt:
    if (!UseAESIntrinsics) return true;
    break;
  case vmIntrinsics::_md5_implCompress:
    if (!UseMD5Intrinsics) return true;
    break;
  case vmIntrinsics::_sha_implCompress:
    if (!UseSHA1Intrinsics) return true;
    break;
  case vmIntrinsics::_sha2_implCompress:
    if (!UseSHA256Intrinsics) return true;
    break;
  case vmIntrinsics::_sha5_implCompress:
    if (!UseSHA512Intrinsics) return true;
    break;
  case vmIntrinsics::_double_keccak:
  case vmIntrinsics::_sha3_implCompress:
    if (!UseSHA3Intrinsics) return true;
    break;
  case vmIntrinsics::_digestBase_implCompressMB:
    if (!(UseMD5Intrinsics || UseSHA1Intrinsics || UseSHA256Intrinsics || UseSHA512Intrinsics || UseSHA3Intrinsics)) return true;
    break;
  case vmIntrinsics::_ghash_processBlocks:
    if (!UseGHASHIntrinsics) return true;
    break;
  case vmIntrinsics::_chacha20Block:
    if (!UseChaCha20Intrinsics) return true;
    break;
  case vmIntrinsics::_kyberNtt:
  case vmIntrinsics::_kyberInverseNtt:
  case vmIntrinsics::_kyberNttMult:
  case vmIntrinsics::_kyberAddPoly_2:
  case vmIntrinsics::_kyberAddPoly_3:
  case vmIntrinsics::_kyber12To16:
  case vmIntrinsics::_kyberBarrettReduce:
    if (!UseKyberIntrinsics) return true;
    break;
  case vmIntrinsics::_dilithiumAlmostNtt:
  case vmIntrinsics::_dilithiumAlmostInverseNtt:
  case vmIntrinsics::_dilithiumNttMult:
  case vmIntrinsics::_dilithiumMontMulByConstant:
  case vmIntrinsics::_dilithiumDecomposePoly:
    if (!UseDilithiumIntrinsics) return true;
    break;
  case vmIntrinsics::_base64_encodeBlock:
  case vmIntrinsics::_base64_decodeBlock:
    if (!UseBASE64Intrinsics) return true;
    break;
  case vmIntrinsics::_poly1305_processBlocks:
    if (!UsePoly1305Intrinsics) return true;
    break;
  case vmIntrinsics::_intpoly_montgomeryMult_P256:
  case vmIntrinsics::_intpoly_assign:
    if (!UseIntPolyIntrinsics) return true;
    break;
  case vmIntrinsics::_updateBytesCRC32C:
  case vmIntrinsics::_updateDirectByteBufferCRC32C:
    if (!UseCRC32CIntrinsics) return true;
    break;
  case vmIntrinsics::_vectorizedMismatch:
    if (!UseVectorizedMismatchIntrinsic) return true;
    break;
  case vmIntrinsics::_updateBytesAdler32:
  case vmIntrinsics::_updateByteBufferAdler32:
    if (!UseAdler32Intrinsics) return true;
    break;
  case vmIntrinsics::_copyMemory:
    if (!InlineArrayCopy || !InlineUnsafeOps) return true;
    break;
  case vmIntrinsics::_setMemory:
    if (!InlineUnsafeOps) return true;
    break;
#ifdef COMPILER2
  case vmIntrinsics::_clone:
  case vmIntrinsics::_copyOf:
  case vmIntrinsics::_copyOfRange:
    // These intrinsics use both the objectcopy and the arraycopy
    // intrinsic mechanism.
    if (!InlineObjectCopy || !InlineArrayCopy) return true;
    break;
  case vmIntrinsics::_compareToL:
  case vmIntrinsics::_compareToU:
  case vmIntrinsics::_compareToLU:
  case vmIntrinsics::_compareToUL:
    if (!SpecialStringCompareTo) return true;
    break;
  case vmIntrinsics::_indexOfL:
  case vmIntrinsics::_indexOfU:
  case vmIntrinsics::_indexOfUL:
  case vmIntrinsics::_indexOfIL:
  case vmIntrinsics::_indexOfIU:
  case vmIntrinsics::_indexOfIUL:
  case vmIntrinsics::_indexOfU_char:
  case vmIntrinsics::_indexOfL_char:
    if (!SpecialStringIndexOf) return true;
    break;
  case vmIntrinsics::_equalsL:
    if (!SpecialStringEquals) return true;
    break;
  case vmIntrinsics::_vectorizedHashCode:
    if (!UseVectorizedHashCodeIntrinsic) return true;
    break;
  case vmIntrinsics::_equalsB:
  case vmIntrinsics::_equalsC:
    if (!SpecialArraysEquals) return true;
    break;
  case vmIntrinsics::_encodeISOArray:
  case vmIntrinsics::_encodeAsciiArray:
  case vmIntrinsics::_encodeByteISOArray:
    if (!SpecialEncodeISOArray) return true;
    break;
  case vmIntrinsics::_getCallerClass:
    if (!InlineReflectionGetCallerClass) return true;
    break;
  case vmIntrinsics::_multiplyToLen:
    if (!UseMultiplyToLenIntrinsic) return true;
    break;
  case vmIntrinsics::_squareToLen:
    if (!UseSquareToLenIntrinsic) return true;
    break;
  case vmIntrinsics::_mulAdd:
    if (!UseMulAddIntrinsic) return true;
    break;
  case vmIntrinsics::_montgomeryMultiply:
    if (!UseMontgomeryMultiplyIntrinsic) return true;
    break;
  case vmIntrinsics::_montgomerySquare:
    if (!UseMontgomerySquareIntrinsic) return true;
    break;
  case vmIntrinsics::_bigIntegerRightShiftWorker:
  case vmIntrinsics::_bigIntegerLeftShiftWorker:
    break;
  case vmIntrinsics::_addExactI:
  case vmIntrinsics::_addExactL:
  case vmIntrinsics::_decrementExactI:
  case vmIntrinsics::_decrementExactL:
  case vmIntrinsics::_incrementExactI:
  case vmIntrinsics::_incrementExactL:
  case vmIntrinsics::_multiplyExactI:
  case vmIntrinsics::_multiplyExactL:
  case vmIntrinsics::_negateExactI:
  case vmIntrinsics::_negateExactL:
  case vmIntrinsics::_subtractExactI:
  case vmIntrinsics::_subtractExactL:
    if (!UseMathExactIntrinsics || !InlineMathNatives) return true;
    break;
  case vmIntrinsics::_isDigit:
  case vmIntrinsics::_isLowerCase:
  case vmIntrinsics::_isUpperCase:
  case vmIntrinsics::_isWhitespace:
    if (!UseCharacterCompareIntrinsics) return true;
    break;
  case vmIntrinsics::_dcopySign:
  case vmIntrinsics::_fcopySign:
    if (!InlineMathNatives || !UseCopySignIntrinsic) return true;
    break;
  case vmIntrinsics::_dsignum:
  case vmIntrinsics::_fsignum:
    if (!InlineMathNatives || !UseSignumIntrinsic) return true;
    break;
#endif // COMPILER2
  default:
    return false;
  }

  return false;
}