ld/testsuite/ld-arm/thumb2-bl-blx-interwork.s

   1         .arch armv7-a
   2         .global _start
   3         .syntax unified
   4         .text
   5         .thumb
   6
   7         .macro do_calls
   8         @ The following four instructions are accepted by gas, but generate
   9         @ meaningless code.
  10         @bl.w arm0
  11         @bl.w arm4
  12         @nop
  13         @bl.w arm0
  14         @bl.w arm4
  15         @nop
  16         blx.w arm0
  17         blx.w arm4
  18         nop
  19         blx.w arm0
  20         blx.w arm4
  21         nop
  22         bl.w thumb0
  23         bl.w thumb2
  24         bl.w thumb4
  25         bl.w thumb6
  26         nop
  27         bl.w thumb0
  28         bl.w thumb2
  29         bl.w thumb4
  30         bl.w thumb6
  31         nop
  32         @ These eight are all accepted by gas, but generate bad code.
  33         @blx.w thumb0
  34         @blx.w thumb2
  35         @blx.w thumb4
  36         @blx.w thumb6
  37         @nop
  38         @blx.w thumb0
  39         @blx.w thumb2
  40         @blx.w thumb4
  41         @blx.w thumb6
  42         .endm
  43
  44         .thumb_func
  45         .align 3
  46 _start:
  47         do_calls
  48
  49         .arm
  50         .align 3
  51 arm0:
  52         bx lr
  53
  54         .align 3
  55         nop
  56 arm4:
  57         bx lr
  58
  59         .thumb
  60         .thumb_func
  61         .align 3
  62 thumb0:
  63         bx lr
  64
  65         .thumb_func
  66         .align 3
  67         nop
  68 thumb2:
  69         bx lr
  70
  71         .thumb_func
  72         .align 3
  73         nop
  74         nop
  75 thumb4:
  76         bx lr
  77
  78         .thumb_func
  79         .align 3
  80         nop
  81         nop
  82         nop
  83 thumb6:
  84         bx lr
  85
  86 backwards:
  87         do_calls