test/MC/Mips/higher-highest-addressing.s

   1 # RUN: llvm-mc -filetype=obj -triple=mips64el-unknown-linux -mcpu=mips64r2 %s \
   2 # RUN:   | llvm-objdump -disassemble - | FileCheck %s
   3
   4 # RUN: llvm-mc -filetype=obj -triple=mips64el-unknown-linux -mcpu=mips64r2 %s \
   5 # RUN:   | llvm-readobj -r | FileCheck %s -check-prefix=CHECK-REL
   6
   7
   8 # Test that R_MIPS_HIGHER and R_MIPS_HIGHEST relocations are created.  By using
   9 # NEXT we also test that none of the expressions from the test2 generates
  10 # relocations.
  11
  12 test1:
  13 # CHECK-LABEL:    test1:
  14
  15         lui     $5, %highest(func)
  16         daddiu  $5, $5, %higher(func)
  17
  18 # CHECK-REL:           Relocations [
  19 # CHECK-REL-NEXT:      {
  20 # CHECK-REL-NEXT:          0x{{[0-9,A-F]+}} R_MIPS_HIGHEST
  21 # CHECK-REL-NEXT:          0x{{[0-9,A-F]+}} R_MIPS_HIGHER
  22 # CHECK-REL-NEXT:      }
  23
  24
  25 # Test the calculation of %higher and %highest:
  26 # ((x + 0x80008000) >> 32) & 0xffff (higher)
  27 # ((x + 0x800080008000) >> 48) & 0xffff (highest).
  28
  29 test2:
  30 # CHECK-LABEL:    test2:
  31
  32 # Check the case where relocations are not modified by adding +1.  The constant
  33 # is chosen so that it is just below the value that triggers the addition of +1
  34 # to %higher.
  35 $L1:
  36         lui     $6,    %highest($L2-$L1+0x300047FFF7FF7)
  37         daddiu  $6, $6, %higher($L2-$L1+0x300047FFF7FF7)
  38 $L2:
  39 # CHECK:    lui      $6, 3
  40 # CHECK:    daddiu   $6, $6, 4
  41
  42
  43 # Check the case where %higher is modified by adding +1.
  44         lui     $7, %highest($L2-$L1+0x300047FFF7FF8)
  45         ld      $7, %higher ($L2-$L1+0x300047FFF7FF8)($7)
  46 # CHECK:    lui     $7, 3
  47 # CHECK:    ld      $7, 5($7)
  48
  49
  50 # Check the case where both %higher and %highest are modified by adding +1.
  51         lui     $8, %highest(0x37FFF7FFF8000)
  52         ld      $8, %higher (0x37FFF7FFF8000)($8)
  53 # CHECK:    lui     $8, 4
  54 # CHECK:    ld      $8, -32768($8)