From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm | 176 ++++++++++++++++++++++++++++++++ 1 file changed, 176 insertions(+) create mode 100644 gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm (limited to 'gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm') diff --git a/gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm b/gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm new file mode 100644 index 0000000..f1f044f --- /dev/null +++ b/gmp-6.3.0/mpn/x86_64/coreihwl/mul_2.asm @@ -0,0 +1,176 @@ +dnl AMD64 mpn_mul_2 optimised for Intel Haswell. + +dnl Contributed to the GNU project by Torbjörn Granlund. + +dnl Copyright 2013 Free Software Foundation, Inc. + +dnl This file is part of the GNU MP Library. +dnl +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +dnl The GNU MP Library is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + +C cycles/limb +C AMD K8,K9 - +C AMD K10 - +C AMD bull - +C AMD pile - +C AMD steam - +C AMD excavator - +C AMD bobcat - +C AMD jaguar - +C Intel P4 - +C Intel core - +C Intel NHM - +C Intel SBR - +C Intel IBR - +C Intel HWL 3.74 +C Intel BWL 4.21 +C Intel SKL 4.20 +C Intel atom - +C Intel SLM - +C VIA nano - + +C The loop of this code is the result of running a code generation and +C optimisation tool suite written by David Harvey and Torbjörn Granlund. + +C TODO +C * Move test and jcc together, for insn fusion. + +define(`rp', `%rdi') +define(`up', `%rsi') +define(`n_param',`%rdx') +define(`vp', `%rcx') + +define(`v0', `%r8') +define(`v1', `%r9') +define(`w0', `%rbx') +define(`w1', `%rcx') +define(`w2', `%rbp') +define(`w3', `%r10') +define(`n', `%r11') + +ABI_SUPPORT(DOS64) +ABI_SUPPORT(STD64) + +ASM_START() + TEXT + ALIGN(32) +PROLOGUE(mpn_mul_2) + FUNC_ENTRY(4) + push %rbx + push %rbp + + mov (vp), v0 + mov 8(vp), v1 + + lea 3(n_param), n + shr $2, n + + test $1, R8(n_param) + jnz L(bx1) + +L(bx0): xor w0, w0 + test $2, R8(n_param) + mov (up), %rdx + mulx( v0, w2, w1) + jz L(lo0) + +L(b10): lea -16(rp), rp + lea -16(up), up + jmp L(lo2) + +L(bx1): xor w2, w2 + test $2, R8(n_param) + mov (up), %rdx + mulx( v0, w0, w3) + jnz L(b11) + +L(b01): lea -24(rp), rp + lea 8(up), up + jmp L(lo1) + +L(b11): lea -8(rp), rp + lea -8(up), up + jmp L(lo3) + + ALIGN(16) +L(top): mulx( v1, %rax, w0) + add %rax, w2 C 0 + mov (up), %rdx + mulx( v0, %rax, w1) + adc $0, w0 C 1 + add %rax, w2 C 0 + adc $0, w1 C 1 + add w3, w2 C 0 +L(lo0): mov w2, (rp) C 0 + adc $0, w1 C 1 + mulx( v1, %rax, w2) + add %rax, w0 C 1 + mov 8(up), %rdx + adc $0, w2 C 2 + mulx( v0, %rax, w3) + add %rax, w0 C 1 + adc $0, w3 C 2 + add w1, w0 C 1 +L(lo3): mov w0, 8(rp) C 1 + adc $0, w3 C 2 + mulx( v1, %rax, w0) + add %rax, w2 C 2 + mov 16(up), %rdx + mulx( v0, %rax, w1) + adc $0, w0 C 3 + add %rax, w2 C 2 + adc $0, w1 C 3 + add w3, w2 C 2 +L(lo2): mov w2, 16(rp) C 2 + adc $0, w1 C 3 + mulx( v1, %rax, w2) + add %rax, w0 C 3 + mov 24(up), %rdx + adc $0, w2 C 4 + mulx( v0, %rax, w3) + add %rax, w0 C 3 + adc $0, w3 C 4 + add w1, w0 C 3 + lea 32(up), up +L(lo1): mov w0, 24(rp) C 3 + adc $0, w3 C 4 + dec n + lea 32(rp), rp + jnz L(top) + +L(end): mulx( v1, %rdx, %rax) + add %rdx, w2 + adc $0, %rax + add w3, w2 + mov w2, (rp) + adc $0, %rax + + pop %rbp + pop %rbx + FUNC_EXIT() + ret +EPILOGUE() -- cgit v1.2.3