isa/rv32ui/fence_i.S

   1 #*****************************************************************************
   2 # fence_i.S
   3 #-----------------------------------------------------------------------------
   4 #
   5 # Test self-modifying code and the fence.i instruction.
   6 #
   7
   8 #include "riscv_test.h"
   9 #include "test_macros.h"
  10
  11 RVTEST_RV32U
  12 RVTEST_CODE_BEGIN
  13
  14 li a3, 111
  15 la a0, 3f
  16 la a1, 1f
  17 la a2, 2f
  18 lw a0, 0(a0)
  19
  20 # test I$ hit
  21 .align 6
  22 sw a0, 0(a1)
  23 fence.i
  24
  25 1: addi a3, a3, 222
  26 TEST_CASE( 2, a3, 444, nop )
  27
  28 # test prefetcher hit
  29 li a4, 100
  30 1: addi a4, a4, -1
  31 bnez a4, 1b
  32
  33 sw a0, 0(a2)
  34 fence.i
  35
  36 .align 6
  37 2: addi a3, a3, 555
  38 TEST_CASE( 3, a3, 777, nop )
  39
  40 3: addi a3, a3, 333
  41
  42 TEST_PASSFAIL
  43
  44 RVTEST_CODE_END
  45
  46   .data
  47 RVTEST_DATA_BEGIN
  48
  49   TEST_DATA
  50
  51 RVTEST_DATA_END