Mailinglist Archive: opensuse-bugs (15077 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=326866#c6





--- Comment #6 from Richard Guenther <rguenther@xxxxxxxxxx>  2007-09-28 08:49:43 MST ---
Text size with -fpreserve-function-arguments is 15053 bytes vs. 14771 bytes
without.

Short testcase where we generate location lists for the parameters, but gdb
does not show anything:

static inline int foo(int i)
{
  return i-1;
}

int foobar(int j)
{
  return foo(j);
}

int main(int argc, char **argv)
{
  return foobar(argc);
}

 <1><162>: Abbrev Number: 5 (DW_TAG_subprogram)
  <163>     DW_AT_sibling     : <1b5>   
  <167>     DW_AT_external    : 1       
  <168>     DW_AT_name        : (indirect string, offset: 0xc0): foobar 
  <16c>     DW_AT_decl_file   : 1       
  <16d>     DW_AT_decl_line   : 7       
  <16e>     DW_AT_prototyped  : 1       
  <16f>     DW_AT_type        : <15b>   
  <173>     DW_AT_low_pc      : 0x400498        
  <17b>     DW_AT_high_pc     : 0x40049c        
  <183>     DW_AT_frame_base  : 2 byte block: 77 8      (DW_OP_breg7: 8)
 <2><186>: Abbrev Number: 6 (DW_TAG_formal_parameter)
  <187>     DW_AT_name        : j       
  <189>     DW_AT_decl_file   : 1       
  <18a>     DW_AT_decl_line   : 6       
  <18b>     DW_AT_type        : <15b>   
  <18f>     DW_AT_location    : 0       (location list)
 <2><193>: Abbrev Number: 7 (DW_TAG_inlined_subroutine)
  <194>     DW_AT_abstract_origin: <140>        
  <198>     DW_AT_low_pc      : 0x400498        
  <1a0>     DW_AT_high_pc     : 0x40049b        
  <1a8>     DW_AT_call_file   : 1       
  <1a9>     DW_AT_call_line   : 8       
 <3><1aa>: Abbrev Number: 8 (DW_TAG_formal_parameter)
  <1ab>     DW_AT_abstract_origin: <151>        
  <1af>     DW_AT_location    : 0x36    (location list)


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