divsi3.S 1.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * Copyright (c) 2021, The Linux Foundation. All rights reserved.
  4. */
  5. #include <linux/linkage.h>
  6. SYM_FUNC_START(__hexagon_divsi3)
  7. {
  8. p0 = cmp.gt(r0,#-1)
  9. p1 = cmp.gt(r1,#-1)
  10. r3:2 = vabsw(r1:0)
  11. }
  12. {
  13. p3 = xor(p0,p1)
  14. r4 = sub(r2,r3)
  15. r6 = cl0(r2)
  16. p0 = cmp.gtu(r3,r2)
  17. }
  18. {
  19. r0 = mux(p3,#-1,#1)
  20. r7 = cl0(r3)
  21. p1 = cmp.gtu(r3,r4)
  22. }
  23. {
  24. r0 = mux(p0,#0,r0)
  25. p0 = or(p0,p1)
  26. if (p0.new) jumpr:nt r31
  27. r6 = sub(r7,r6)
  28. }
  29. {
  30. r7 = r6
  31. r5:4 = combine(#1,r3)
  32. r6 = add(#1,lsr(r6,#1))
  33. p0 = cmp.gtu(r6,#4)
  34. }
  35. {
  36. r5:4 = vaslw(r5:4,r7)
  37. if (!p0) r6 = #3
  38. }
  39. {
  40. loop0(1f,r6)
  41. r7:6 = vlsrw(r5:4,#1)
  42. r1:0 = #0
  43. }
  44. .falign
  45. 1:
  46. {
  47. r5:4 = vlsrw(r5:4,#2)
  48. if (!p0.new) r0 = add(r0,r5)
  49. if (!p0.new) r2 = sub(r2,r4)
  50. p0 = cmp.gtu(r4,r2)
  51. }
  52. {
  53. r7:6 = vlsrw(r7:6,#2)
  54. if (!p0.new) r0 = add(r0,r7)
  55. if (!p0.new) r2 = sub(r2,r6)
  56. p0 = cmp.gtu(r6,r2)
  57. }:endloop0
  58. {
  59. if (!p0) r0 = add(r0,r7)
  60. }
  61. {
  62. if (p3) r0 = sub(r1,r0)
  63. jumpr r31
  64. }
  65. SYM_FUNC_END(__hexagon_divsi3)