On Mon, Jun 11, 2018 at 08:50:31AM +0200, Olivier Hainque wrote:
> FWIW, I was surprised by a gotcha while writing tests for this,
> where both
>
> { dg-final { scan-assembler "0x3.*DW_AT_language" } }
> and { dg-final { scan-assembler "0xd.*DW_AT_language" } }
>
> matched for Ada95 (0xd) with -gdwarf-3.
Sure, you need to use something like \[^\n\r]* instead.
> scan-assembler uses "regexp" without --line, and 0x3 happened
> to match from a much earlier line in the output, with an assembly
> output like
>
> bla 0x3 blo
> <some other dwarf>
> 0xd # DW_AT_language
>
> I adjusted the regex not to match newline characters and the
> test is now more accurate, then I noticed that other language tests
> use '.*' so might be affected as well, unless I'm missing something.
In some tests using .* is intentional, in lots of others probably a bug.
Jakub
