* [PATCH] [libstdc++] Remove unused hasher instance.
@ 2021-06-04 19:51 Thomas Rodgers
2021-06-04 20:30 ` Jonathan Wakely
0 siblings, 1 reply; 3+ messages in thread
From: Thomas Rodgers @ 2021-06-04 19:51 UTC (permalink / raw)
To: gcc-patches, libstdc++; +Cc: trodgers, Thomas Rodgers
This is a remnant of poorly executed refactoring.
libstdc++-v3/ChangeLog:
* include/std/barrier (__tree_barrier::_M_arrive): Remove
unnecessary hasher instantiation.
---
libstdc++-v3/include/std/barrier | 1 -
1 file changed, 1 deletion(-)
diff --git a/libstdc++-v3/include/std/barrier b/libstdc++-v3/include/std/barrier
index fd61fb4f9da..4210e30d1ce 100644
--- a/libstdc++-v3/include/std/barrier
+++ b/libstdc++-v3/include/std/barrier
@@ -103,7 +103,6 @@ It looks different from literature pseudocode for two main reasons:
static_cast<__barrier_phase_t>(__old_phase_val + 2);
size_t __current_expected = _M_expected;
- std::hash<std::thread::id> __hasher;
__current %= ((_M_expected + 1) >> 1);
for (int __round = 0; ; ++__round)
--
2.26.2
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] [libstdc++] Remove unused hasher instance.
2021-06-04 19:51 [PATCH] [libstdc++] Remove unused hasher instance Thomas Rodgers
@ 2021-06-04 20:30 ` Jonathan Wakely
2021-06-08 23:04 ` Thomas Rodgers
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Wakely @ 2021-06-04 20:30 UTC (permalink / raw)
To: Thomas Rodgers; +Cc: gcc-patches, libstdc++, Thomas Rodgers
On Fri, 4 Jun 2021 at 20:54, Thomas Rodgers wrote:
> This is a remnant of poorly executed refactoring.
>
OK for trunk and gcc-11, thanks.
> libstdc++-v3/ChangeLog:
>
> * include/std/barrier (__tree_barrier::_M_arrive): Remove
> unnecessary hasher instantiation.
> ---
> libstdc++-v3/include/std/barrier | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/libstdc++-v3/include/std/barrier
> b/libstdc++-v3/include/std/barrier
> index fd61fb4f9da..4210e30d1ce 100644
> --- a/libstdc++-v3/include/std/barrier
> +++ b/libstdc++-v3/include/std/barrier
> @@ -103,7 +103,6 @@ It looks different from literature pseudocode for two
> main reasons:
> static_cast<__barrier_phase_t>(__old_phase_val
> + 2);
>
> size_t __current_expected = _M_expected;
> - std::hash<std::thread::id> __hasher;
> __current %= ((_M_expected + 1) >> 1);
>
> for (int __round = 0; ; ++__round)
> --
> 2.26.2
>
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] [libstdc++] Remove unused hasher instance.
2021-06-04 20:30 ` Jonathan Wakely
@ 2021-06-08 23:04 ` Thomas Rodgers
0 siblings, 0 replies; 3+ messages in thread
From: Thomas Rodgers @ 2021-06-08 23:04 UTC (permalink / raw)
To: Jonathan Wakely; +Cc: Thomas Rodgers, gcc-patches, libstdc++
Tested x86_64-pc-linux-gnu, committed to master, backported to
releases/gcc-11.
On Fri, Jun 4, 2021 at 1:30 PM Jonathan Wakely <jwakely@redhat.com> wrote:
>
>
> On Fri, 4 Jun 2021 at 20:54, Thomas Rodgers wrote:
>
>> This is a remnant of poorly executed refactoring.
>>
>
> OK for trunk and gcc-11, thanks.
>
>
>
>> libstdc++-v3/ChangeLog:
>>
>> * include/std/barrier (__tree_barrier::_M_arrive): Remove
>> unnecessary hasher instantiation.
>> ---
>> libstdc++-v3/include/std/barrier | 1 -
>> 1 file changed, 1 deletion(-)
>>
>> diff --git a/libstdc++-v3/include/std/barrier
>> b/libstdc++-v3/include/std/barrier
>> index fd61fb4f9da..4210e30d1ce 100644
>> --- a/libstdc++-v3/include/std/barrier
>> +++ b/libstdc++-v3/include/std/barrier
>> @@ -103,7 +103,6 @@ It looks different from literature pseudocode for two
>> main reasons:
>> static_cast<__barrier_phase_t>(__old_phase_val
>> + 2);
>>
>> size_t __current_expected = _M_expected;
>> - std::hash<std::thread::id> __hasher;
>> __current %= ((_M_expected + 1) >> 1);
>>
>> for (int __round = 0; ; ++__round)
>> --
>> 2.26.2
>>
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-06-04 19:51 [PATCH] [libstdc++] Remove unused hasher instance Thomas Rodgers
2021-06-04 20:30 ` Jonathan Wakely
2021-06-08 23:04 ` Thomas Rodgers
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