arch/hexagon/lib/udivsi3.S

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2021, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #include <linux/linkage.h>
   7
   8 SYM_FUNC_START(__hexagon_udivsi3)
   9         {
  10                 r2 = cl0(r0)
  11                 r3 = cl0(r1)
  12                 r5:4 = combine(#1,#0)
  13                 p0 = cmp.gtu(r1,r0)
  14         }
  15         {
  16                 r6 = sub(r3,r2)
  17                 r4 = r1
  18                 r1:0 = combine(r0,r4)
  19                 if (p0) jumpr r31
  20         }
  21         {
  22                 r3:2 = vlslw(r5:4,r6)
  23                 loop0(1f,r6)
  24         }
  25         .falign
  26 1:
  27         {
  28                 p0 = cmp.gtu(r2,r1)
  29                 if (!p0.new) r1 = sub(r1,r2)
  30                 if (!p0.new) r0 = add(r0,r3)
  31                 r3:2 = vlsrw(r3:2,#1)
  32         }:endloop0
  33         {
  34                 p0 = cmp.gtu(r2,r1)
  35                 if (!p0.new) r0 = add(r0,r3)
  36                 jumpr r31
  37         }
  38 SYM_FUNC_END(__hexagon_udivsi3)