[LLVMdev] Is line number in DbgStopPointInst in LLVM accurate?

[hc2428 at columbia.edu]

Quoting Török Edwin <edwintorok at gmail.com>:

Hi Torok,
     There are some code lines that do not have dbgstoppoint. For  
example, the 1345 to 1355 (the function below). 1347, 1348, and 1349  
do not exist in the result file.

void select_insert::send_error(uint errcode,const char *err)
{
   ::send_error(&thd->net,errcode,err);
   table->file->extra(HA_EXTRA_NO_CACHE);
   table->file->activate_all_index(thd);
   ha_rollback_stmt(thd);
   if (info.copied || info.deleted)
   {
     query_cache_invalidate3(thd, table, 1);
   }
}

> On 2009-09-24 22:34, hc2428 at columbia.edu wrote:
>> Dear developers,
>>     When I try to map line numbers in source code back to LLVM
>> basicblocks, I meet some problems: there is a source file with 1500
>> lines of code, but when I use BasicBlockPass to collect all
>> DbgStopPoint instructions in this file, I can only get 500 lines of code.
>>     The source code and the collected results are both attached.
>
> Not all lines of the source code are executable, take blank lines, line
> with only braces, comments, function prototypes as an example.
>
> How many lines of source code are left after you remove those? More than
> 500?
>
> Best regards,
> --Edwin
>
>