compiler-rt/lib/builtins/hexagon/modsi3.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
  10
  11         .macro FUNCTION_BEGIN name
  12         .text
  13         .p2align 5
  14         .globl \name
  15         .type  \name, @function
  16 \name:
  17         .endm
  18
  19         .macro FUNCTION_END name
  20         .size  \name, . - \name
  21         .endm
  22
  23
  24 FUNCTION_BEGIN __hexagon_modsi3
  25         {
  26                 p2 = cmp.ge(r0,#0)
  27                 r2 = abs(r0)
  28                 r1 = abs(r1)
  29         }
  30         {
  31                 r3 = cl0(r2)
  32                 r4 = cl0(r1)
  33                 p0 = cmp.gtu(r1,r2)
  34         }
  35         {
  36                 r3 = sub(r4,r3)
  37                 if (p0) jumpr r31
  38         }
  39         {
  40                 p1 = cmp.eq(r3,#0)
  41                 loop0(1f,r3)
  42                 r0 = r2
  43                 r2 = lsl(r1,r3)
  44         }
  45         .falign
  46 1:
  47         {
  48                 p0 = cmp.gtu(r2,r0)
  49                 if (!p0.new) r0 = sub(r0,r2)
  50                 r2 = lsr(r2,#1)
  51                 if (p1) r1 = #0
  52         }:endloop0
  53         {
  54                 p0 = cmp.gtu(r2,r0)
  55                 if (!p0.new) r0 = sub(r0,r1)
  56                 if (p2) jumpr r31
  57         }
  58         {
  59                 r0 = neg(r0)
  60                 jumpr r31
  61         }
  62 FUNCTION_END __hexagon_modsi3
  63
  64   .globl __qdsp_modsi3
  65   .set   __qdsp_modsi3, __hexagon_modsi3