copysign_gen.S 2.7 KB

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  1. /*
  2. * Math library
  3. *
  4. * Copyright (C) 2016 Intel Corporation. All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * * Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * * Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in
  14. * the documentation and/or other materials provided with the
  15. * distribution.
  16. * * Neither the name of Intel Corporation nor the names of its
  17. * contributors may be used to endorse or promote products derived
  18. * from this software without specific prior written permission.
  19. *
  20. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. *
  33. * Author Name <jingwei.zhang@intel.com>
  34. * History:
  35. * 03-14-2016 Initial version. numerics svn rev. 12864
  36. */
  37. .file "copysign_gen.c"
  38. .text
  39. ..TXTST0:
  40. # -- Begin copysign
  41. .text
  42. .align 16,0x90
  43. .globl copysign
  44. copysign:
  45. # parameter 1: %xmm0
  46. # parameter 2: %xmm1
  47. ..B1.1:
  48. .cfi_startproc
  49. ..___tag_value_copysign.1:
  50. ..L2:
  51. lea _ones(%rip), %rax
  52. movsd %xmm1, -24(%rsp)
  53. movl -20(%rsp), %edx
  54. andl $-2147483648, %edx
  55. mulsd (%rax), %xmm0
  56. movsd (%rax), %xmm2
  57. mulsd %xmm2, %xmm1
  58. movsd %xmm0, -8(%rsp)
  59. movl -4(%rsp), %ecx
  60. andl $2147483647, %ecx
  61. orl %edx, %ecx
  62. movl %ecx, -4(%rsp)
  63. movsd %xmm1, -16(%rsp)
  64. movsd -8(%rsp), %xmm0
  65. ret
  66. .align 16,0x90
  67. .cfi_endproc
  68. .type copysign,@function
  69. .size copysign,.-copysign
  70. .data
  71. # -- End copysign
  72. .section .rodata, "a"
  73. .align 4
  74. .align 4
  75. _ones:
  76. .long 0
  77. .long 1072693248
  78. .long 0
  79. .long 3220176896
  80. .type _ones,@object
  81. .size _ones,16
  82. .data
  83. .section .note.GNU-stack, ""
  84. // -- Begin DWARF2 SEGMENT .eh_frame
  85. .section .eh_frame,"a",@progbits
  86. .eh_frame_seg:
  87. .align 1
  88. # End