Re: [PATCH v2 1/1] gdb/linespec: relax block filter to preserve distinct code paths

[Eli Zaretskii <eliz@gnu.org>]

> From: Klaus Gerlicher <klaus.gerlicher@intel.com>
> Date: Thu,  4 Jun 2026 13:29:38 +0000
> 
>  gdb/NEWS                                      |  11 +
>  gdb/amd64-tdep.c                              |  57 ++++
>  gdb/arch-utils.c                              |  10 +
>  gdb/arch-utils.h                              |   1 +
>  gdb/gdbarch-gen.c                             |  22 ++
>  gdb/gdbarch-gen.h                             |  10 +
>  gdb/gdbarch_components.py                     |  15 ++
>  gdb/linespec.c                                |  98 ++++++-
>  .../gdb.linespec/block-filter-cases.c         | 126 +++++++++
>  .../gdb.linespec/block-filter-cases.exp       | 248 ++++++++++++++++++
>  10 files changed, 595 insertions(+), 3 deletions(-)
>  create mode 100644 gdb/testsuite/gdb.linespec/block-filter-cases.c
>  create mode 100644 gdb/testsuite/gdb.linespec/block-filter-cases.exp

Thanks.

> diff --git a/gdb/NEWS b/gdb/NEWS
> index 7c8cf9af4c2..f55b6518344 100644
> --- a/gdb/NEWS
> +++ b/gdb/NEWS
> @@ -64,6 +64,17 @@
>    This fixes an issue where GDB could fail to find a type when relying
>    on the index.  Any existing indexes should be regenerated.
>  
> +* Breakpoint location resolution has been improved for vectorized loops.
> +  Previously, when setting a breakpoint on a source line with vectorized
> +  code (at -O2 with -ftree-vectorize), GDB's block filter heuristic would
> +  discard the scalar remainder location, causing breakpoints to be missed
> +  when only the scalar path executed. GDB now correctly preserves multiple
                                       ^^
Please leave two spaces between sentences, per our conventions.

Reviewed-By: Eli Zaretskii <eliz@gnu.org>