Tue, 02 Sep 2014 12:48:45 -0700
8055494: Add C2 x86 intrinsic for BigInteger::multiplyToLen() method
Summary: Add new C2 intrinsic for BigInteger::multiplyToLen() on x86 in 64-bit VM.
Reviewed-by: roland
duke@435 | 1 | /* |
twisti@2552 | 2 | * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #ifndef CPU_X86_VM_INTERPRETER_X86_HPP |
stefank@2314 | 26 | #define CPU_X86_VM_INTERPRETER_X86_HPP |
stefank@2314 | 27 | |
duke@435 | 28 | public: |
never@2895 | 29 | static Address::ScaleFactor stackElementScale() { |
never@2895 | 30 | return NOT_LP64(Address::times_4) LP64_ONLY(Address::times_8); |
never@2895 | 31 | } |
duke@435 | 32 | |
duke@435 | 33 | // Offset from rsp (which points to the last stack element) |
twisti@1861 | 34 | static int expr_offset_in_bytes(int i) { return stackElementSize * i; } |
duke@435 | 35 | |
duke@435 | 36 | // Stack index relative to tos (which points at value) |
twisti@1861 | 37 | static int expr_index_at(int i) { return stackElementWords * i; } |
duke@435 | 38 | |
duke@435 | 39 | // Already negated by c++ interpreter |
twisti@1861 | 40 | static int local_index_at(int i) { |
twisti@1861 | 41 | assert(i <= 0, "local direction already negated"); |
twisti@1861 | 42 | return stackElementWords * i; |
duke@435 | 43 | } |
stefank@2314 | 44 | |
stefank@2314 | 45 | #endif // CPU_X86_VM_INTERPRETER_X86_HPP |