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copysign_gen.S

copysign_gen.S 2.7 KB
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  1. /*
    2. 

  2. * Math library
    3. 

  3. *
    4. 

  4. * Copyright (C) 2016 Intel Corporation. All rights reserved.
    5. 

  5. *
    6. 

  6. * Redistribution and use in source and binary forms, with or without
    7. 

  7. * modification, are permitted provided that the following conditions
    8. 

  8. * are met:
    9. 

  9. *
    10. 

  10. *   * Redistributions of source code must retain the above copyright
    11. 

  11. *     notice, this list of conditions and the following disclaimer.
    12. 

  12. *   * Redistributions in binary form must reproduce the above copyright
    13. 

  13. *     notice, this list of conditions and the following disclaimer in
    14. 

  14. *     the documentation and/or other materials provided with the
    15. 

  15. *     distribution.
    16. 

  16. *   * Neither the name of Intel Corporation nor the names of its
    17. 

  17. *     contributors may be used to endorse or promote products derived
    18. 

  18. *     from this software without specific prior written permission.
    19. 

  19. *
    20. 

  20. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    21. 

  21. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    22. 

  22. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    23. 

  23. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    24. 

  24. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    25. 

  25. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    26. 

  26. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    27. 

  27. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    28. 

  28. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    29. 

  29. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    30. 

  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    31. 

  31. *
    32. 

  32. *
    33. 

  33. * Author Name <jingwei.zhang@intel.com>
    34. 

  34. *   History:
    35. 

  35. *   03-14-2016 Initial version. numerics svn rev. 12864
    36. 

  36. */
    37. 

  37. 	.file "copysign_gen.c"
    38. 

  38. 	.text
    39. 

  39. ..TXTST0:
    40. 

  40. # -- Begin  copysign
    41. 

  41. 	.text
    42. 

  42.        .align    16,0x90
    43. 

  43. 	.globl copysign
    44. 

  44. copysign:
    45. 

  45. # parameter 1: %xmm0
    46. 

  46. # parameter 2: %xmm1
    47. 

  47. ..B1.1:
    48. 

  48. 	.cfi_startproc
    49. 

  49. ..___tag_value_copysign.1:
    50. 

  50. ..L2:
    51. 

  51. 

  52.         lea       _ones(%rip), %rax
    53. 

  53.         movsd     %xmm1, -24(%rsp)
    54. 

  54.         movl      -20(%rsp), %edx
    55. 

  55.         andl      $-2147483648, %edx
    56. 

  56.         mulsd     (%rax), %xmm0
    57. 

  57.         movsd     (%rax), %xmm2
    58. 

  58.         mulsd     %xmm2, %xmm1
    59. 

  59.         movsd     %xmm0, -8(%rsp)
    60. 

  60.         movl      -4(%rsp), %ecx
    61. 

  61.         andl      $2147483647, %ecx
    62. 

  62.         orl       %edx, %ecx
    63. 

  63.         movl      %ecx, -4(%rsp)
    64. 

  64.         movsd     %xmm1, -16(%rsp)
    65. 

  65.         movsd     -8(%rsp), %xmm0
    66. 

  66.         ret       
    67. 

  67.         .align    16,0x90
    68. 

  68. 	.cfi_endproc
    69. 

  69. 	.type	copysign,@function
    70. 

  70. 	.size	copysign,.-copysign
    71. 

  71. 	.data
    72. 

  72. # -- End  copysign
    73. 

  73. 	.section .rodata, "a"
    74. 

  74. 	.align 4
    75. 

  75. 	.align 4
    76. 

  76. _ones:
    77. 

  77. 	.long	0
    78. 

  78. 	.long	1072693248
    79. 

  79. 	.long	0
    80. 

  80. 	.long	3220176896
    81. 

  81. 	.type	_ones,@object
    82. 

  82. 	.size	_ones,16
    83. 

  83. 	.data
    84. 

  84. 	.section .note.GNU-stack, ""
    85. 

  85. // -- Begin DWARF2 SEGMENT .eh_frame
    86. 

  86. 	.section .eh_frame,"a",@progbits
    87. 

  87. .eh_frame_seg:
    88. 

  88. 	.align 1
    89. 

  89. # End
    90.