test/MC/ARM/multi-section-mapping.s

   1 @ RUN: llvm-mc -triple=armv7-linux-gnueabi -filetype=obj < %s | llvm-objdump -t - | FileCheck %s
   2
   3         .text
   4         add r0, r0, r0
   5
   6 @ .wibble should *not* inherit .text's mapping symbol. It's a completely different section.
   7         .section .wibble
   8         add r0, r0, r0
   9
  10 @ A section should be able to start with a $t
  11         .section .starts_thumb
  12         .thumb
  13         adds r0, r0, r0
  14
  15 @ A setion should be able to start with a $d
  16         .section .starts_data
  17         .word 42
  18
  19 @ Changing back to .text should not emit a redundant $a
  20         .text
  21         .arm
  22         add r0, r0, r0
  23
  24 @ Similarly no $t if we change back .starts_thumb using .pushsection
  25         .pushsection .starts_thumb
  26         .thumb
  27         adds r0, r0, r0
  28
  29 @ When we change back to .text using .popsection .thumb is still active, so we
  30 @ should emit a $t
  31         .popsection
  32         add r0, r0, r0
  33
  34 @ .ident does a push then pop of the .comment section, so the .word should
  35 @ cause $d to appear in the .text section
  36         .ident "ident"
  37         .word 0
  38
  39 @ With all those constraints, we want:
  40 @   + .text to have $a at 0, $t at 8, $d at 12
  41 @   + .wibble to have $a at 0
  42 @   + .starts_thumb to have $t at 0
  43 @   + .starts_data to have $d at 0
  44
  45 @ CHECK: 00000000 .text 00000000 $a
  46 @ CHECK-NEXT: 00000000 .wibble 00000000 $a
  47 @ CHECK-NEXT: 0000000a .text 00000000 $d
  48 @ CHECK-NEXT: 00000000 .starts_thumb 00000000 $t
  49 @ CHECK-NEXT: 00000008 .text 00000000 $t
  50 @ CHECK-NOT: ${{[adt]}}
  51