LXR linux/tools/testing/selftests/arm64/fp/assembler.h

   1// SPDX-License-Identifier: GPL-2.0-only
   2// Copyright (C) 2015-2019 ARM Limited.
   3// Original author: Dave Martin <Dave.Martin@arm.com>
   4
   5#ifndef ASSEMBLER_H
   6#define ASSEMBLER_H
   7
   8.macro __for from:req, to:req
   9        .if (\from) == (\to)
  10                _for__body %\from
  11        .else
  12                __for \from, %(\from) + ((\to) - (\from)) / 2
  13                __for %(\from) + ((\to) - (\from)) / 2 + 1, \to
  14        .endif
  15.endm
  16
  17.macro _for var:req, from:req, to:req, insn:vararg
  18        .macro _for__body \var:req
  19                .noaltmacro
  20                \insn
  21                .altmacro
  22        .endm
  23
  24        .altmacro
  25        __for \from, \to
  26        .noaltmacro
  27
  28        .purgem _for__body
  29.endm
  30
  31.macro function name
  32        .macro endfunction
  33                .type \name, @function
  34                .purgem endfunction
  35        .endm
  36\name:
  37.endm
  38
  39.macro define_accessor name, num, insn
  40        .macro \name\()_entry n
  41                \insn \n, 1
  42                ret
  43        .endm
  44
  45function \name
  46        adr     x2, .L__accessor_tbl\@
  47        add     x2, x2, x0, lsl #3
  48        br      x2
  49
  50.L__accessor_tbl\@:
  51        _for x, 0, (\num) - 1, \name\()_entry \x
  52endfunction
  53
  54        .purgem \name\()_entry
  55.endm
  56
  57#endif /* ! ASSEMBLER_H */
  58