contrib/llvm-project/compiler-rt/lib/builtins/hexagon/udivsi3.S

   1 //===----------------------Hexagon builtin routine ------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9         .macro FUNCTION_BEGIN name
  10         .text
  11         .p2align 5
  12         .globl \name
  13         .type  \name, @function
  14 \name:
  15         .endm
  16
  17         .macro FUNCTION_END name
  18         .size  \name, . - \name
  19         .endm
  20
  21
  22 FUNCTION_BEGIN __hexagon_udivsi3
  23         {
  24                 r2 = cl0(r0)
  25                 r3 = cl0(r1)
  26                 r5:4 = combine(#1,#0)
  27                 p0 = cmp.gtu(r1,r0)
  28         }
  29         {
  30                 r6 = sub(r3,r2)
  31                 r4 = r1
  32                 r1:0 = combine(r0,r4)
  33                 if (p0) jumpr r31
  34         }
  35         {
  36                 r3:2 = vlslw(r5:4,r6)
  37                 loop0(1f,r6)
  38         }
  39         .falign
  40 1:
  41         {
  42                 p0 = cmp.gtu(r2,r1)
  43                 if (!p0.new) r1 = sub(r1,r2)
  44                 if (!p0.new) r0 = add(r0,r3)
  45                 r3:2 = vlsrw(r3:2,#1)
  46         }:endloop0
  47         {
  48                 p0 = cmp.gtu(r2,r1)
  49                 if (!p0.new) r0 = add(r0,r3)
  50                 jumpr r31
  51         }
  52 FUNCTION_END __hexagon_udivsi3
  53
  54   .globl __qdsp_udivsi3
  55   .set   __qdsp_udivsi3, __hexagon_udivsi3