From: Simon Marchi <simon.marchi@polymtl.ca>
To: Andreas Arnez <arnez@linux.vnet.ibm.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 9/9] Remove unnecessary copies of variables in read/write_pieced_value
Date: Fri, 14 Apr 2017 15:21:00 -0000 [thread overview]
Message-ID: <3eb8baf276b16a9de3b11e1a6e94582a@polymtl.ca> (raw)
In-Reply-To: <1491586736-21296-10-git-send-email-arnez@linux.vnet.ibm.com>
On 2017-04-07 13:38, Andreas Arnez wrote:
> In read_pieced_value's main loop, the variables `dest_offset_bits' and
> `source_offset_bits' are basically just copies of `offset' and
> `bits_to_skip', respectively. In write_pieced_value the copies are
> reversed. This is not very helpful when trying to keep the logic
> between
> these functions in sync. Since the copies are unnecessary, this patch
> just removes them.
I agree about dest_offset_bits being the same as offset in
read_pieced_value and source_offset_bits being the same as offset in
write_pieced_value, I had also identified this as a potential
simplification. But I'd keep the names
source_offset_bits/dest_offset_bits rather than offset. Or maybe
offset_in_value_bits, something like that.
Also, it might be clearer if bits_to_skip was named source_bits_to_skip
in read_pieced_value and dest_bits_to_skip in write_pieced_value, to
clarify what is skipped exactly.
Thanks,
Simon
prev parent reply other threads:[~2017-04-14 15:21 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-07 17:39 [PATCH 0/9] Various DWARF piece fixes Andreas Arnez
2017-04-07 17:39 ` [PATCH 1/9] Add test for modifiable DWARF locations Andreas Arnez
2017-04-13 4:00 ` Simon Marchi
2017-04-13 10:52 ` Andreas Arnez
2017-04-13 8:36 ` Yao Qi
2017-04-13 11:46 ` Andreas Arnez
2017-04-07 17:40 ` [PATCH 2/9] Fix size capping in write_pieced_value Andreas Arnez
2017-04-13 8:18 ` Yao Qi
2017-04-13 16:35 ` Andreas Arnez
2017-04-19 9:15 ` Yao Qi
2017-04-19 14:36 ` Andreas Arnez
2017-04-19 15:00 ` Yao Qi
2017-04-07 17:41 ` [PATCH 3/9] PR gdb/21226: Take DWARF stack value pieces from LSB end Andreas Arnez
2017-04-14 3:36 ` Simon Marchi
2017-04-18 16:32 ` Andreas Arnez
2017-04-18 16:43 ` Simon Marchi
2017-04-07 17:41 ` [PATCH 4/9] Remove addr_size field from struct piece_closure Andreas Arnez
2017-04-13 9:10 ` Yao Qi
2017-04-14 3:39 ` Simon Marchi
2017-04-18 17:25 ` Andreas Arnez
2017-04-18 18:49 ` Simon Marchi
2017-04-07 17:42 ` [PATCH 5/9] Fix issues in write_pieced_value when targeting bit-fields Andreas Arnez
2017-04-14 5:18 ` Simon Marchi
2017-04-27 17:54 ` Andreas Arnez
2017-05-03 13:59 ` Simon Marchi
2017-04-07 17:43 ` [PATCH 6/9] Fix handling of DWARF register pieces on big-endian targets Andreas Arnez
2017-04-14 14:11 ` Simon Marchi
2017-04-19 18:03 ` Andreas Arnez
2017-04-07 17:43 ` [PATCH 7/9] Improve logic for buffer allocation in read/write_pieced_value Andreas Arnez
2017-04-14 14:51 ` Simon Marchi
2017-04-07 17:44 ` [PATCH 8/9] Respect piece offset for DW_OP_bit_piece Andreas Arnez
2017-04-14 15:07 ` Simon Marchi
2017-04-07 17:45 ` [PATCH 9/9] Remove unnecessary copies of variables in read/write_pieced_value Andreas Arnez
2017-04-14 15:21 ` Simon Marchi [this message]
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