isa/rv64ui/fence_i.S

   1 # See LICENSE for license details.
   2
   3 #*****************************************************************************
   4 # fence_i.S
   5 #-----------------------------------------------------------------------------
   6 #
   7 # Test self-modifying code and the fence.i instruction.
   8 #
   9
  10 #include "riscv_test.h"
  11 #include "test_macros.h"
  12
  13 RVTEST_RV64U
  14 RVTEST_CODE_BEGIN
  15
  16 li a3, 111
  17 la a0, 3f
  18 la a1, 1f
  19 la a2, 2f
  20 lw a0, 0(a0)
  21
  22 # test I$ hit
  23 .align 6
  24 sw a0, 0(a1)
  25 .align 2
  26 fence.i
  27
  28 1: addi a3, a3, 222
  29 TEST_CASE( 2, a3, 444, nop )
  30
  31 # test prefetcher hit
  32 li a4, 100
  33 1: addi a4, a4, -1
  34 bnez a4, 1b
  35
  36 sw a0, 0(a2)
  37 fence.i
  38
  39 .align 6
  40 2: addi a3, a3, 555
  41 TEST_CASE( 3, a3, 777, nop )
  42
  43 3: addi a3, a3, 333
  44
  45 TEST_PASSFAIL
  46
  47 RVTEST_CODE_END
  48
  49   .data
  50 RVTEST_DATA_BEGIN
  51
  52   TEST_DATA
  53
  54 RVTEST_DATA_END