From 52ab7604db35e0421bc3d2468a3af52b2c513a7b Mon Sep 17 00:00:00 2001 From: Noah Goldstein Date: Fri, 14 Oct 2022 22:00:25 -0500 Subject: x86: Update VEC macros to complete API for evex/evex512 impls 1) Copy so that backport will be easier. 2) Make section only define if there is not a previous definition 3) Add `VEC_lo` definition for proper reg-width but in the ymm/zmm0-15 range. 4) Add macros for accessing GPRs based on VEC_SIZE This is to make it easier to do think like: ``` vpcmpb %VEC(0), %VEC(1), %k0 kmov{d|q} %k0, %{eax|rax} test %{eax|rax} ``` It adds macro s.t any GPR can get the proper width with: `V{upcase_GPR_name}` and any mask insn can get the proper width with: `{upcase_mask_insn_without_postfix}` This commit does not change libc.so Tested build on x86-64 --- sysdeps/x86_64/multiarch/scripts/gen-reg-macros.py | 133 +++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 sysdeps/x86_64/multiarch/scripts/gen-reg-macros.py (limited to 'sysdeps/x86_64/multiarch/scripts') diff --git a/sysdeps/x86_64/multiarch/scripts/gen-reg-macros.py b/sysdeps/x86_64/multiarch/scripts/gen-reg-macros.py new file mode 100644 index 0000000000..9fb6903212 --- /dev/null +++ b/sysdeps/x86_64/multiarch/scripts/gen-reg-macros.py @@ -0,0 +1,133 @@ +#!/usr/bin/python3 +# Copyright (C) 2022 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, see +# . +"""Generate macros for getting GPR name of a certain size + +Inputs: None +Output: Prints header fill to stdout + +API: + V{upcase_GPR_name} + - Get register name REG_WIDTH component of `upcase_GPR_name` + {upcase_mask_insn_without_postfix} + - Get proper REG_WIDTH mask insn for `upcase_mask_insn_without_postfix` + VGPR(reg_name) + - Get register name REG_WIDTH component of `reg_name` + VKINSN(mask_insn) + - Get proper REG_WIDTH mask insn for `mask_insn` + VGPR_SZ(reg_name, reg_size) + - Get register name `reg_size` component of `reg_name` + VKINSN_SZ(mask_insn, insn_size) + - Get proper `insn_size` mask insn for `mask_insn` +""" + +import sys +import os +from datetime import datetime + +registers = [["rax", "eax", "ax", "al"], ["rbx", "ebx", "bx", "bl"], + ["rcx", "ecx", "cx", "cl"], ["rdx", "edx", "dx", "dl"], + ["rbp", "ebp", "bp", "bpl"], ["rsp", "esp", "sp", "spl"], + ["rsi", "esi", "si", "sil"], ["rdi", "edi", "di", "dil"], + ["r8", "r8d", "r8w", "r8b"], ["r9", "r9d", "r9w", "r9b"], + ["r10", "r10d", "r10w", "r10b"], ["r11", "r11d", "r11w", "r11b"], + ["r12", "r12d", "r12w", "r12b"], ["r13", "r13d", "r13w", "r13b"], + ["r14", "r14d", "r14w", "r14b"], ["r15", "r15d", "r15w", "r15b"]] + +mask_insns = [ + "kmov", + "kortest", + "kor", + "ktest", + "kand", + "kxor", + "knot", + "kxnor", +] +mask_insns_ext = ["b", "w", "d", "q"] + +cr = """ + Copyright (C) {} Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ +""" + +print("/* This file was generated by: {}.".format(os.path.basename( + sys.argv[0]))) +print(cr.format(datetime.today().year)) + +print("#ifndef _REG_MACROS_H") +print("#define _REG_MACROS_H\t1") +print("") +for reg in registers: + for i in range(0, 4): + print("#define {}_{}\t{}".format(reg[0], 8 << i, reg[3 - i])) + +print("") +for mask_insn in mask_insns: + for i in range(0, 4): + print("#define {}_{}\t{}{}".format(mask_insn, 8 << i, mask_insn, + mask_insns_ext[i])) +for i in range(0, 3): + print("#define kunpack_{}\tkunpack{}{}".format(8 << i, mask_insns_ext[i], + mask_insns_ext[i + 1])) +mask_insns.append("kunpack") + +print("") +print( + "/* Common API for accessing proper width GPR is V{upcase_GPR_name}. */") +for reg in registers: + print("#define V{}\tVGPR({})".format(reg[0].upper(), reg[0])) + +print("") + +print( + "/* Common API for accessing proper width mask insn is {upcase_mask_insn}. */" +) +for mask_insn in mask_insns: + print("#define {} \tVKINSN({})".format(mask_insn.upper(), mask_insn)) +print("") + +print("#ifdef USE_WIDE_CHAR") +print("# define REG_WIDTH 32") +print("#else") +print("# define REG_WIDTH VEC_SIZE") +print("#endif") +print("") +print("#define VPASTER(x, y)\tx##_##y") +print("#define VEVALUATOR(x, y)\tVPASTER(x, y)") +print("") +print("#define VGPR_SZ(reg_name, reg_size)\tVEVALUATOR(reg_name, reg_size)") +print("#define VKINSN_SZ(insn, reg_size)\tVEVALUATOR(insn, reg_size)") +print("") +print("#define VGPR(reg_name)\tVGPR_SZ(reg_name, REG_WIDTH)") +print("#define VKINSN(mask_insn)\tVKINSN_SZ(mask_insn, REG_WIDTH)") + +print("\n#endif") -- cgit 1.4.1