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 | /* |
stefank@2314 | 2 | * Copyright (c) 2003, 2010, 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_COPY_X86_HPP |
stefank@2314 | 26 | #define CPU_X86_VM_COPY_X86_HPP |
stefank@2314 | 27 | |
duke@435 | 28 | // Inline functions for memory copy and fill. |
duke@435 | 29 | |
duke@435 | 30 | // Contains inline asm implementations |
stefank@2314 | 31 | #ifdef TARGET_OS_ARCH_linux_x86 |
stefank@2314 | 32 | # include "copy_linux_x86.inline.hpp" |
stefank@2314 | 33 | #endif |
stefank@2314 | 34 | #ifdef TARGET_OS_ARCH_solaris_x86 |
stefank@2314 | 35 | # include "copy_solaris_x86.inline.hpp" |
stefank@2314 | 36 | #endif |
stefank@2314 | 37 | #ifdef TARGET_OS_ARCH_windows_x86 |
stefank@2314 | 38 | # include "copy_windows_x86.inline.hpp" |
stefank@2314 | 39 | #endif |
never@3156 | 40 | #ifdef TARGET_OS_ARCH_bsd_x86 |
never@3156 | 41 | # include "copy_bsd_x86.inline.hpp" |
never@3156 | 42 | #endif |
stefank@2314 | 43 | |
duke@435 | 44 | |
duke@435 | 45 | static void pd_fill_to_words(HeapWord* tohw, size_t count, juint value) { |
duke@435 | 46 | #ifdef AMD64 |
duke@435 | 47 | julong* to = (julong*) tohw; |
duke@435 | 48 | julong v = ((julong) value << 32) | value; |
duke@435 | 49 | while (count-- > 0) { |
duke@435 | 50 | *to++ = v; |
duke@435 | 51 | } |
duke@435 | 52 | #else |
duke@435 | 53 | juint* to = (juint*)tohw; |
duke@435 | 54 | count *= HeapWordSize / BytesPerInt; |
duke@435 | 55 | while (count-- > 0) { |
duke@435 | 56 | *to++ = value; |
duke@435 | 57 | } |
duke@435 | 58 | #endif // AMD64 |
duke@435 | 59 | } |
duke@435 | 60 | |
duke@435 | 61 | static void pd_fill_to_aligned_words(HeapWord* tohw, size_t count, juint value) { |
duke@435 | 62 | pd_fill_to_words(tohw, count, value); |
duke@435 | 63 | } |
duke@435 | 64 | |
duke@435 | 65 | static void pd_fill_to_bytes(void* to, size_t count, jubyte value) { |
duke@435 | 66 | (void)memset(to, value, count); |
duke@435 | 67 | } |
duke@435 | 68 | |
duke@435 | 69 | static void pd_zero_to_words(HeapWord* tohw, size_t count) { |
duke@435 | 70 | pd_fill_to_words(tohw, count, 0); |
duke@435 | 71 | } |
duke@435 | 72 | |
duke@435 | 73 | static void pd_zero_to_bytes(void* to, size_t count) { |
duke@435 | 74 | (void)memset(to, 0, count); |
duke@435 | 75 | } |
stefank@2314 | 76 | |
stefank@2314 | 77 | #endif // CPU_X86_VM_COPY_X86_HPP |