contrib/compiler-rt/lib/builtins/hexagon/memcpy_likely_aligned.S

   1 //===------------------------- memcopy routines ---------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is dual licensed under the MIT and the University of Illinois Open
   6 // Source Licenses. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10
  11         .macro FUNCTION_BEGIN name
  12         .text
  13         .p2align 5
  14         .globl \name
  15         .type  \name, @function
  16 \name:
  17         .endm
  18
  19         .macro FUNCTION_END name
  20         .size  \name, . - \name
  21         .endm
  22
  23 FUNCTION_BEGIN __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
  24         {
  25                 p0 = bitsclr(r1,#7)
  26                 p0 = bitsclr(r0,#7)
  27                 if (p0.new) r5:4 = memd(r1)
  28                 r3 = #-3
  29         }
  30         {
  31                 if (!p0) jump .Lmemcpy_call
  32                 if (p0) memd(r0++#8) = r5:4
  33                 if (p0) r5:4 = memd(r1+#8)
  34                 r3 += lsr(r2,#3)
  35         }
  36         {
  37                 memd(r0++#8) = r5:4
  38                 r5:4 = memd(r1+#16)
  39                 r1 = add(r1,#24)
  40                 loop0(1f,r3)
  41         }
  42         .falign
  43 1:
  44         {
  45                 memd(r0++#8) = r5:4
  46                 r5:4 = memd(r1++#8)
  47         }:endloop0
  48         {
  49                 memd(r0) = r5:4
  50                 r0 -= add(r2,#-8)
  51                 jumpr r31
  52         }
  53 FUNCTION_END __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes
  54
  55 .Lmemcpy_call:
  56 #ifdef __PIC__
  57         jump memcpy@PLT
  58 #else
  59         jump memcpy
  60 #endif
  61
  62   .globl __qdsp_memcpy_likely_aligned_min32bytes_mult8bytes
  63   .set   __qdsp_memcpy_likely_aligned_min32bytes_mult8bytes, \
  64          __hexagon_memcpy_likely_aligned_min32bytes_mult8bytes