rintl.S 4.2 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 "rintl.c"
  38. .text
  39. ..TXTST0:
  40. # -- Begin rintl
  41. .text
  42. .align 16,0x90
  43. .globl rintl
  44. rintl:
  45. # parameter 1: 32 + %rsp
  46. ..B1.1:
  47. .cfi_startproc
  48. ..___tag_value_rintl.1:
  49. ..L2:
  50. subq $24, %rsp
  51. .cfi_def_cfa_offset 32
  52. xorb %cl, %cl
  53. ..B1.2:
  54. fnstcw 18(%rsp)
  55. ..B1.3:
  56. movb 41(%rsp), %dl
  57. movzwl 40(%rsp), %eax
  58. andb $-128, %dl
  59. andl $32767, %eax
  60. shrb $7, %dl
  61. movzwl 18(%rsp), %esi
  62. cmpl $16446, %eax
  63. jge ..B1.13
  64. ..B1.4:
  65. movl %esi, %eax
  66. andl $768, %eax
  67. cmpl $768, %eax
  68. je ..B1.8
  69. ..B1.5:
  70. orl $-64768, %esi
  71. movw %si, 16(%rsp)
  72. ..B1.6:
  73. fldcw 16(%rsp)
  74. ..B1.7:
  75. movb $1, %cl
  76. ..B1.8:
  77. fldt 32(%rsp)
  78. lea _TWO_63(%rip), %rax
  79. movzbl %dl, %edx
  80. testb %cl, %cl
  81. fldl (%rax,%rdx,8)
  82. fadd %st, %st(1)
  83. fsubrp %st, %st(1)
  84. fstpt 32(%rsp)
  85. je ..B1.10
  86. ..B1.9:
  87. fldcw 18(%rsp)
  88. ..B1.10:
  89. fldt 32(%rsp)
  90. lea _zeros(%rip), %rax
  91. fldl (%rax)
  92. fucomip %st(1), %st
  93. jp ..B1.12
  94. je ..B1.19
  95. ..B1.12:
  96. addq $24, %rsp
  97. .cfi_def_cfa_offset 8
  98. ret
  99. .cfi_def_cfa_offset 32
  100. ..B1.13:
  101. movl %esi, %eax
  102. andl $768, %eax
  103. cmpl $768, %eax
  104. je ..B1.20
  105. ..B1.14:
  106. orl $-64768, %esi
  107. movw %si, 16(%rsp)
  108. ..B1.15:
  109. fldcw 16(%rsp)
  110. ..B1.16:
  111. fldt 32(%rsp)
  112. fstpt (%rsp)
  113. ..B1.17:
  114. fldcw 18(%rsp)
  115. ..B1.18:
  116. fldt (%rsp)
  117. addq $24, %rsp
  118. .cfi_def_cfa_offset 8
  119. ret
  120. .cfi_def_cfa_offset 32
  121. ..B1.19:
  122. fstp %st(0)
  123. fldl (%rax,%rdx,8)
  124. addq $24, %rsp
  125. .cfi_def_cfa_offset 8
  126. ret
  127. .cfi_def_cfa_offset 32
  128. ..B1.20:
  129. fldt 32(%rsp)
  130. fstpt (%rsp)
  131. jmp ..B1.18
  132. .align 16,0x90
  133. .cfi_endproc
  134. .type rintl,@function
  135. .size rintl,.-rintl
  136. .data
  137. # -- End rintl
  138. .section .rodata, "a"
  139. .align 4
  140. .align 4
  141. _TWO_63:
  142. .long 0
  143. .long 1138753536
  144. .long 0
  145. .long 3286237184
  146. .type _TWO_63,@object
  147. .size _TWO_63,16
  148. .align 4
  149. _zeros:
  150. .long 0
  151. .long 0
  152. .long 0
  153. .long 2147483648
  154. .type _zeros,@object
  155. .size _zeros,16
  156. .data
  157. .section .note.GNU-stack, ""
  158. // -- Begin DWARF2 SEGMENT .eh_frame
  159. .section .eh_frame,"a",@progbits
  160. .eh_frame_seg:
  161. .align 1
  162. # End