1 //
2 // Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
3 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 //
5 // This code is free software; you can redistribute it and/or modify it
6 // under the terms of the GNU General Public License version 2 only, as
7 // published by the Free Software Foundation.
8 //
9 // This code is distributed in the hope that it will be useful, but WITHOUT
10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 // version 2 for more details (a copy is included in the LICENSE file that
13 // accompanied this code).
14 //
15 // You should have received a copy of the GNU General Public License version
16 // 2 along with this work; if not, write to the Free Software Foundation,
17 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 //
19 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 // or visit www.oracle.com if you need additional information or have any
21 // questions.
22 //
1598 case T_SHORT:
1599 if (size < 4) return 0;
1600 break;
1601 default:
1602 ShouldNotReachHere();
1603 }
1604 return size;
1605 }
1606
1607 // Limits on vector size (number of elements) loaded into vector.
1608 const int Matcher::max_vector_size(const BasicType bt) {
1609 return vector_width_in_bytes(bt)/type2aelembytes(bt);
1610 }
1611 const int Matcher::min_vector_size(const BasicType bt) {
1612 int max_size = max_vector_size(bt);
1613 // Min size which can be loaded into vector is 4 bytes.
1614 int size = (type2aelembytes(bt) == 1) ? 4 : 2;
1615 return MIN2(size,max_size);
1616 }
1617
1618 // Vector ideal reg corresponding to specified size in bytes
1619 const uint Matcher::vector_ideal_reg(int size) {
1620 assert(MaxVectorSize >= size, "");
1621 switch(size) {
1622 case 4: return Op_VecS;
1623 case 8: return Op_VecD;
1624 case 16: return Op_VecX;
1625 case 32: return Op_VecY;
1626 case 64: return Op_VecZ;
1627 }
1628 ShouldNotReachHere();
1629 return 0;
1630 }
1631
1632 // x86 supports misaligned vectors store/load.
1633 const bool Matcher::misaligned_vectors_ok() {
1634 return true;
1635 }
1636
1637 // x86 AES instructions are compatible with SunJCE expanded
|
1 //
2 // Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
3 // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 //
5 // This code is free software; you can redistribute it and/or modify it
6 // under the terms of the GNU General Public License version 2 only, as
7 // published by the Free Software Foundation.
8 //
9 // This code is distributed in the hope that it will be useful, but WITHOUT
10 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 // version 2 for more details (a copy is included in the LICENSE file that
13 // accompanied this code).
14 //
15 // You should have received a copy of the GNU General Public License version
16 // 2 along with this work; if not, write to the Free Software Foundation,
17 // Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 //
19 // Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 // or visit www.oracle.com if you need additional information or have any
21 // questions.
22 //
1598 case T_SHORT:
1599 if (size < 4) return 0;
1600 break;
1601 default:
1602 ShouldNotReachHere();
1603 }
1604 return size;
1605 }
1606
1607 // Limits on vector size (number of elements) loaded into vector.
1608 const int Matcher::max_vector_size(const BasicType bt) {
1609 return vector_width_in_bytes(bt)/type2aelembytes(bt);
1610 }
1611 const int Matcher::min_vector_size(const BasicType bt) {
1612 int max_size = max_vector_size(bt);
1613 // Min size which can be loaded into vector is 4 bytes.
1614 int size = (type2aelembytes(bt) == 1) ? 4 : 2;
1615 return MIN2(size,max_size);
1616 }
1617
1618 const bool Matcher::supports_scalable_vector() {
1619 return false;
1620 }
1621
1622 const int Matcher::scalable_vector_reg_size(const BasicType bt) {
1623 return -1;
1624 }
1625
1626 // Vector ideal reg corresponding to specified size in bytes
1627 const uint Matcher::vector_ideal_reg(int size) {
1628 assert(MaxVectorSize >= size, "");
1629 switch(size) {
1630 case 4: return Op_VecS;
1631 case 8: return Op_VecD;
1632 case 16: return Op_VecX;
1633 case 32: return Op_VecY;
1634 case 64: return Op_VecZ;
1635 }
1636 ShouldNotReachHere();
1637 return 0;
1638 }
1639
1640 // x86 supports misaligned vectors store/load.
1641 const bool Matcher::misaligned_vectors_ok() {
1642 return true;
1643 }
1644
1645 // x86 AES instructions are compatible with SunJCE expanded
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