ilogb_wmt.S 4.8 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 "ilogb_wmt.c"
  38. .text
  39. ..TXTST0:
  40. # -- Begin static_func
  41. .text
  42. .align 16,0x90
  43. static_func:
  44. ..B1.1:
  45. ..L1:
  46. call ..L2
  47. ..L2:
  48. popl %eax
  49. lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%eax), %eax
  50. lea static_const_table@GOTOFF(%eax), %eax
  51. ret
  52. .align 16,0x90
  53. .type static_func,@function
  54. .size static_func,.-static_func
  55. .data
  56. # -- End static_func
  57. .text
  58. # -- Begin ilogb
  59. .text
  60. .align 16,0x90
  61. .globl ilogb
  62. ilogb:
  63. # parameter 1: 8 + %ebp
  64. ..B2.1:
  65. ..L3:
  66. ..B2.2:
  67. pushl %ebp
  68. movl %esp, %ebp
  69. subl $104, %esp
  70. movl %ebx, 48(%esp)
  71. call static_func
  72. movl %eax, %ebx
  73. movsd 112(%esp), %xmm0
  74. movsd %xmm0, 8(%esp)
  75. psrlq $52, %xmm0
  76. movd %xmm0, %eax
  77. andl $2047, %eax
  78. subl $1, %eax
  79. cmpl $2046, %eax
  80. jae .L_2TAG_PACKET_0.0.3
  81. subl $1022, %eax
  82. jmp .L_2TAG_PACKET_1.0.3
  83. .L_2TAG_PACKET_0.0.3:
  84. movq 8(%esp), %xmm0
  85. movq (%ebx), %xmm1
  86. pxor %xmm2, %xmm2
  87. testl %eax, %eax
  88. jg .L_2TAG_PACKET_2.0.3
  89. comisd %xmm2, %xmm0
  90. mulsd %xmm1, %xmm0
  91. je .L_2TAG_PACKET_3.0.3
  92. psrlq $52, %xmm0
  93. movd %xmm0, %eax
  94. andl $2047, %eax
  95. subl $1078, %eax
  96. jmp .L_2TAG_PACKET_1.0.3
  97. .L_2TAG_PACKET_2.0.3:
  98. ucomisd %xmm0, %xmm0
  99. movl $2147483647, %eax
  100. movl $-2147483648, %edx
  101. cmovc %edx, %eax
  102. xorpd %xmm0, %xmm0
  103. movq 16(%ebx), %xmm1
  104. mulsd %xmm1, %xmm0
  105. jmp .L_2TAG_PACKET_1.0.3
  106. .L_2TAG_PACKET_3.0.3:
  107. movl $-2147483648, %edx
  108. movl %edx, (%esp)
  109. subl $32, %esp
  110. lea 112(%esp), %eax
  111. movl %eax, (%esp)
  112. lea 112(%esp), %eax
  113. movl %eax, 4(%esp)
  114. lea 32(%esp), %eax
  115. movl %eax, 8(%esp)
  116. movl $157, %eax
  117. movl %eax, 12(%esp)
  118. call __libm_error_support
  119. addl $32, %esp
  120. movl (%esp), %eax
  121. xorpd %xmm0, %xmm0
  122. movq 16(%ebx), %xmm1
  123. mulsd %xmm0, %xmm1
  124. .L_2TAG_PACKET_1.0.3:
  125. movl 48(%esp), %ebx
  126. movl %ebp, %esp
  127. popl %ebp
  128. ret
  129. ..B2.3:
  130. .align 16,0x90
  131. .type ilogb,@function
  132. .size ilogb,.-ilogb
  133. .data
  134. # -- End ilogb
  135. .text
  136. # -- Begin __libm_error_support
  137. .text
  138. .align 16,0x90
  139. __libm_error_support:
  140. # parameter 1: 4 + %esp
  141. # parameter 2: 8 + %esp
  142. # parameter 3: 12 + %esp
  143. # parameter 4: 16 + %esp
  144. ..B3.1:
  145. ..L4:
  146. ret
  147. .align 16,0x90
  148. .type __libm_error_support,@function
  149. .size __libm_error_support,.-__libm_error_support
  150. .data
  151. # -- End __libm_error_support
  152. .section .rodata, "a"
  153. .align 16
  154. .align 16
  155. static_const_table:
  156. .long 0
  157. .long 1130364928
  158. .long 0
  159. .long 1130364928
  160. .long 0
  161. .long 2146435072
  162. .long 0
  163. .long 2146435072
  164. .type static_const_table,@object
  165. .size static_const_table,32
  166. .data
  167. .section .note.GNU-stack, ""
  168. # End