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001-revert_register_mode_search.patch

001-revert_register_mode_search.patch 2.4 KB
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  1. Revert of:
    2. 

  2. 

  3. commit 275035b56823b26d5fb7e90fad945b998648edf2
    4. 

  4. Author: bergner <bergner@138bc75d-0d04-0410-961f-82ee72b054a4>
    5. 

  5. Date:   Thu Sep 5 14:09:07 2013 +0000
    6. 

  6. 

  7.         PR target/58139
    8. 

  8.         * reginfo.c (choose_hard_reg_mode): Scan through all mode classes
    9. 

  9.         looking for widest mode.
    10. 

  10. 

  11. 

  12.     git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@202286 138bc75d-0d04-0410-961f-82ee72b054a4
    13. 

  13. 

  14. 

  15. --- a/gcc/reginfo.c
    16. 

  16. +++ b/gcc/reginfo.c
    17. 

  17. @@ -620,35 +620,40 @@ choose_hard_reg_mode (unsigned int regno
    18. 

  18.         mode = GET_MODE_WIDER_MODE (mode))
    19. 

  19.      if ((unsigned) hard_regno_nregs[regno][mode] == nregs
    20. 

  20.  	&& HARD_REGNO_MODE_OK (regno, mode)
    21. 

  21. -	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
    22. 

  22. -	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
    23. 

  23. +	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
    24. 

  24.        found_mode = mode;
    25. 

  25.  
    26. 

  26. +  if (found_mode != VOIDmode)
    27. 

  27. +    return found_mode;
    28. 

  28. +
    29. 

  29.    for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT);
    30. 

  30.         mode != VOIDmode;
    31. 

  31.         mode = GET_MODE_WIDER_MODE (mode))
    32. 

  32.      if ((unsigned) hard_regno_nregs[regno][mode] == nregs
    33. 

  33.  	&& HARD_REGNO_MODE_OK (regno, mode)
    34. 

  34. -	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
    35. 

  35. -	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
    36. 

  36. +	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
    37. 

  37.        found_mode = mode;
    38. 

  38.  
    39. 

  39. +  if (found_mode != VOIDmode)
    40. 

  40. +    return found_mode;
    41. 

  41. +
    42. 

  42.    for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_FLOAT);
    43. 

  43.         mode != VOIDmode;
    44. 

  44.         mode = GET_MODE_WIDER_MODE (mode))
    45. 

  45.      if ((unsigned) hard_regno_nregs[regno][mode] == nregs
    46. 

  46.  	&& HARD_REGNO_MODE_OK (regno, mode)
    47. 

  47. -	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
    48. 

  48. -	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
    49. 

  49. +	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
    50. 

  50.        found_mode = mode;
    51. 

  51.  
    52. 

  52. +  if (found_mode != VOIDmode)
    53. 

  53. +    return found_mode;
    54. 

  54. +
    55. 

  55.    for (mode = GET_CLASS_NARROWEST_MODE (MODE_VECTOR_INT);
    56. 

  56.         mode != VOIDmode;
    57. 

  57.         mode = GET_MODE_WIDER_MODE (mode))
    58. 

  58.      if ((unsigned) hard_regno_nregs[regno][mode] == nregs
    59. 

  59.  	&& HARD_REGNO_MODE_OK (regno, mode)
    60. 

  60. -	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode))
    61. 

  61. -	&& GET_MODE_SIZE (mode) > GET_MODE_SIZE (found_mode))
    62. 

  62. +	&& (! call_saved || ! HARD_REGNO_CALL_PART_CLOBBERED (regno, mode)))
    63. 

  63.        found_mode = mode;
    64. 

  64.  
    65. 

  65.    if (found_mode != VOIDmode)
    66.