1.1 --- a/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp Tue Jul 02 07:51:31 2013 +0200
1.2 +++ b/src/cpu/x86/vm/c1_LIRGenerator_x86.cpp Tue Jul 02 20:42:12 2013 -0400
1.3 @@ -1,5 +1,5 @@
1.4 /*
1.5 - * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
1.6 + * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
1.7 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.8 *
1.9 * This code is free software; you can redistribute it and/or modify it
1.10 @@ -932,6 +932,81 @@
1.11 __ arraycopy(src.result(), src_pos.result(), dst.result(), dst_pos.result(), length.result(), tmp, expected_type, flags, info); // does add_safepoint
1.12 }
1.13
1.14 +void LIRGenerator::do_update_CRC32(Intrinsic* x) {
1.15 + assert(UseCRC32Intrinsics, "need AVX and LCMUL instructions support");
1.16 + // Make all state_for calls early since they can emit code
1.17 + LIR_Opr result = rlock_result(x);
1.18 + int flags = 0;
1.19 + switch (x->id()) {
1.20 + case vmIntrinsics::_updateCRC32: {
1.21 + LIRItem crc(x->argument_at(0), this);
1.22 + LIRItem val(x->argument_at(1), this);
1.23 + crc.load_item();
1.24 + val.load_item();
1.25 + __ update_crc32(crc.result(), val.result(), result);
1.26 + break;
1.27 + }
1.28 + case vmIntrinsics::_updateBytesCRC32:
1.29 + case vmIntrinsics::_updateByteBufferCRC32: {
1.30 + bool is_updateBytes = (x->id() == vmIntrinsics::_updateBytesCRC32);
1.31 +
1.32 + LIRItem crc(x->argument_at(0), this);
1.33 + LIRItem buf(x->argument_at(1), this);
1.34 + LIRItem off(x->argument_at(2), this);
1.35 + LIRItem len(x->argument_at(3), this);
1.36 + buf.load_item();
1.37 + off.load_nonconstant();
1.38 +
1.39 + LIR_Opr index = off.result();
1.40 + int offset = is_updateBytes ? arrayOopDesc::base_offset_in_bytes(T_BYTE) : 0;
1.41 + if(off.result()->is_constant()) {
1.42 + index = LIR_OprFact::illegalOpr;
1.43 + offset += off.result()->as_jint();
1.44 + }
1.45 + LIR_Opr base_op = buf.result();
1.46 +
1.47 +#ifndef _LP64
1.48 + if (!is_updateBytes) { // long b raw address
1.49 + base_op = new_register(T_INT);
1.50 + __ convert(Bytecodes::_l2i, buf.result(), base_op);
1.51 + }
1.52 +#else
1.53 + if (index->is_valid()) {
1.54 + LIR_Opr tmp = new_register(T_LONG);
1.55 + __ convert(Bytecodes::_i2l, index, tmp);
1.56 + index = tmp;
1.57 + }
1.58 +#endif
1.59 +
1.60 + LIR_Address* a = new LIR_Address(base_op,
1.61 + index,
1.62 + LIR_Address::times_1,
1.63 + offset,
1.64 + T_BYTE);
1.65 + BasicTypeList signature(3);
1.66 + signature.append(T_INT);
1.67 + signature.append(T_ADDRESS);
1.68 + signature.append(T_INT);
1.69 + CallingConvention* cc = frame_map()->c_calling_convention(&signature);
1.70 + const LIR_Opr result_reg = result_register_for(x->type());
1.71 +
1.72 + LIR_Opr addr = new_pointer_register();
1.73 + __ leal(LIR_OprFact::address(a), addr);
1.74 +
1.75 + crc.load_item_force(cc->at(0));
1.76 + __ move(addr, cc->at(1));
1.77 + len.load_item_force(cc->at(2));
1.78 +
1.79 + __ call_runtime_leaf(StubRoutines::updateBytesCRC32(), getThreadTemp(), result_reg, cc->args());
1.80 + __ move(result_reg, result);
1.81 +
1.82 + break;
1.83 + }
1.84 + default: {
1.85 + ShouldNotReachHere();
1.86 + }
1.87 + }
1.88 +}
1.89
1.90 // _i2l, _i2f, _i2d, _l2i, _l2f, _l2d, _f2i, _f2l, _f2d, _d2i, _d2l, _d2f
1.91 // _i2b, _i2c, _i2s
