Re: Add new for_each macros for iterating over a List that do not require ListCell pointer - Mailing list pgsql-hackers

From Nathan Bossart
Subject Re: Add new for_each macros for iterating over a List that do not require ListCell pointer
Date
Msg-id 20240103221311.GA1595831@nathanxps13
Whole thread Raw
In response to Re: Add new for_each macros for iterating over a List that do not require ListCell pointer  (Jelte Fennema-Nio <postgres@jeltef.nl>)
List pgsql-hackers
On Wed, Jan 03, 2024 at 10:57:07PM +0100, Jelte Fennema-Nio wrote:
> Overall your light edits look good to me. The commit message is very
> descriptive and I like the shortening of the comments. The only thing
> I feel is that I think lost some my original intent is this sentence:
> 
> + * different types.  The outer loop only does a single iteration, so we expect
> + * optimizing compilers will unroll it, thereby optimizing it away.
> 
> The "we expect" reads to me as if we're not very sure that compilers
> do this optimization. Even though we are quite sure. Maybe some small
> changes like this to clarify that.
> 
> The outer loop only does a single iteration, so we expect that **any**
> optimizing compilers will unroll it, thereby optimizing it away. **We
> know for sure that gcc and clang do this optimization.**

WFM.  Thanks for reviewing the edits.

-- 
Nathan Bossart
Amazon Web Services: https://aws.amazon.com



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