gcc/testsuite/gcc.dg/debug/btf/btf-bitfields-3.c

   1 /* Test BTF generation for enum-type bitfields
   2
   3    It is allowed to have a bitfield type be an enum type.
   4    We expect the following types:
   5
   6      [1] enum 'foo'(1U#B) size=4U#B
   7          'BAR' value=0
   8          'BAZ' value=1
   9          'QUZ' value=2
  10          'QUX' value=3
  11      [2] int 'unsigned int' size=4 offset=0 bits=32
  12      [3] struct 'bitt' size=4
  13          member 'f' type=1 bitfield_size=2 bit_offset=0
  14    */
  15
  16 /* { dg-do compile } */
  17 /* { dg-options "-O0 -gbtf -gno-strict-dwarf -dA" } */
  18
  19 /* Enum with 4 members.  */
  20 /* { dg-final { scan-assembler-times "\[\t \]0x6000004\[\t \]+\[^\n\]*btt_info" 1 } } */
  21 /* Struct with 1 bitfield member.  */
  22 /* { dg-final { scan-assembler-times "\[\t \]0x84000001\[\t \]+\[^\n\]*btt_info" 1 } } */
  23
  24 /* Bitfield "f" points to type ID 1.  */
  25 /* { dg-final { scan-assembler-times " btm_type: \\(BTF_KIND_ENUM 'foo'" 1 } } */
  26
  27 enum foo
  28 {
  29   BAR = 0,
  30   BAZ = 1,
  31   QUZ = 2,
  32   QUX = 3
  33 };
  34
  35 struct bitt
  36 {
  37   enum foo f : 2;
  38 } bitty;