Re: Baby X is bor nagain

Liste des GroupesRevenir à cl c 
Sujet : Re: Baby X is bor nagain
De : 643-408-1753 (at) *nospam* kylheku.com (Kaz Kylheku)
Groupes : comp.lang.c
Date : 28. Jun 2024, 04:23:47
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <20240627201830.854@kylheku.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
User-Agent : slrn/pre1.0.4-9 (Linux)
On 2024-06-27, bart <bc@freeuk.com> wrote:
And for most of /my/ compiles, the code produced by gcc-O0 is fast
enough. It also about the same speed as code produced by one of my
compilers.
>
So I tend to use it when I want the extra speed, or other compilers
don't work, or when a particular app only builds with that compiler.
>
Otherwise the extra overheads are not worth the bother.

How good are your diagnostics compared to GCC -O2, plus -Wall and -W?

Some diagnostics are not produced or don't work well without
optimization, because the the same analysis that goes into optimization
also goes into proofs connected to diagnostics.

For instance, some code look like might use a variable without
initializing it, under some conditions. The optimizer can rule out of
those conditions (e.g. by transforming the code in a way that
makes it obvious that the use of the variable is not reached
without crossing an assignment to it.)

--
TXR Programming Language: http://nongnu.org/txr
Cygnal: Cygwin Native Application Library: http://kylheku.com/cygnal
Mastodon: @Kazinator@mstdn.ca

Date Sujet#  Auteur
27 Jun 24 * Re: Baby X is bor nagain110bart
27 Jun 24 +* Re: Baby X is bor nagain2Michael S
27 Jun 24 i`- Re: Baby X is bor nagain1bart
27 Jun 24 +* Re: Baby X is bor nagain69David Brown
27 Jun 24 i`* Re: Baby X is bor nagain68bart
27 Jun 24 i `* Re: Baby X is bor nagain67David Brown
27 Jun 24 i  `* Re: Baby X is bor nagain66bart
28 Jun 24 i   +* Re: Baby X is bor nagain55Kaz Kylheku
28 Jun 24 i   i`* Re: Baby X is bor nagain54bart
28 Jun 24 i   i +* Re: Baby X is bor nagain20Kaz Kylheku
29 Jun 24 i   i i`* Re: Baby X is bor nagain19bart
29 Jun 24 i   i i +* Re: Baby X is bor nagain10Tim Rentsch
29 Jun 24 i   i i i`* Re: Baby X is bor nagain9bart
29 Jun 24 i   i i i +* Re: Baby X is bor nagain5David Brown
29 Jun 24 i   i i i i`* Re: Baby X is bor nagain4Michael S
29 Jun 24 i   i i i i +- Re: Baby X is bor nagain1Keith Thompson
30 Jun 24 i   i i i i +- Re: Baby X is bor nagain1Tim Rentsch
30 Jun 24 i   i i i i `- Re: Baby X is bor nagain1David Brown
30 Jun 24 i   i i i +* Re: Baby X is bor nagain2Kaz Kylheku
3 Jul 24 i   i i i i`- Re: Baby X is bor nagain1James Kuyper
30 Jun 24 i   i i i `- Re: Baby X is bor nagain1Tim Rentsch
29 Jun 24 i   i i +* Re: Baby X is bor nagain7Richard Harnden
29 Jun 24 i   i i i`* Re: Baby X is bor nagain6bart
30 Jun 24 i   i i i `* Re: Baby X is bor nagain5Michael S
30 Jun 24 i   i i i  `* Re: Baby X is bor nagain4David Brown
30 Jun 24 i   i i i   `* Re: Baby X is bor nagain3Michael S
30 Jun 24 i   i i i    +- Re: Baby X is bor nagain1David Brown
9 Jul 24 i   i i i    `- Re: Baby X is bor nagain1Tim Rentsch
30 Jun 24 i   i i `- Re: Baby X is bor nagain1Keith Thompson
29 Jun 24 i   i +* Re: Baby X is bor nagain6David Brown
29 Jun 24 i   i i`* Re: Baby X is bor nagain5bart
30 Jun 24 i   i i `* Re: Baby X is bor nagain4David Brown
30 Jun 24 i   i i  `* Re: Baby X is bor nagain3bart
30 Jun 24 i   i i   `* Re: Baby X is bor nagain2David Brown
1 Jul 24 i   i i    `- Re: Baby X is bor nagain1bart
1 Jul 24 i   i `* Re: Baby X is bor nagain27Ben Bacarisse
1 Jul 24 i   i  `* Re: Baby X is bor nagain26bart
1 Jul 24 i   i   +- Re: Baby X is bor nagain1Keith Thompson
2 Jul 24 i   i   `* Re: Baby X is bor nagain24Ben Bacarisse
2 Jul 24 i   i    `* Re: Baby X is bor nagain23bart
3 Jul 24 i   i     `* Re: Baby X is bor nagain22Ben Bacarisse
3 Jul 24 i   i      `* Re: Baby X is bor nagain21bart
3 Jul 24 i   i       +* Re: Baby X is bor nagain2Kaz Kylheku
3 Jul 24 i   i       i`- Re: Baby X is bor nagain1Kaz Kylheku
3 Jul 24 i   i       +- Re: Baby X is bor nagain1Ben Bacarisse
3 Jul 24 i   i       `* Re: Baby X is bor nagain17David Brown
3 Jul 24 i   i        +* Re: Baby X is bor nagain14bart
3 Jul 24 i   i        i+* Re: Baby X is bor nagain12DFS
3 Jul 24 i   i        ii+* Re: Baby X is bor nagain3bart
3 Jul 24 i   i        iii`* Re: Baby X is bor nagain2Michael S
4 Jul 24 i   i        iii `- Re: Baby X is bor nagain1Malcolm McLean
3 Jul 24 i   i        ii+- Re: Baby X is bor nagain1Ben Bacarisse
4 Jul 24 i   i        ii`* Re: Baby X is bor nagain7David Brown
2 Jan 25 i   i        ii `* Re: Baby X is bor nagain6DFS
2 Jan 25 i   i        ii  +- Re: Baby X is bor nagain1Phillip
2 Jan 25 i   i        ii  +- Re: Baby X is bor nagain1Waldek Hebisch
3 Jan 25 i   i        ii  `* Re: Baby X is bor nagain3David Brown
3 Jan 25 i   i        ii   `* Re: Baby X is bor nagain2DFS
3 Jan 25 i   i        ii    `- Re: Baby X is bor nagain1David Brown
4 Jul 24 i   i        i`- Re: Baby X is bor nagain1David Brown
3 Jul 24 i   i        `* Re: Baby X is bor nagain2Malcolm McLean
3 Jul 24 i   i         `- Re: Baby X is bor nagain1Keith Thompson
28 Jun 24 i   +* Re: Baby X is bor nagain9David Brown
28 Jun 24 i   i+* Re: Baby X is bor nagain7Michael S
29 Jun 24 i   ii`* Re: Baby X is bor nagain6David Brown
29 Jun 24 i   ii +* Re: Baby X is bor nagain3Kaz Kylheku
29 Jun 24 i   ii i+- Re: Baby X is bor nagain1David Brown
29 Jun 24 i   ii i`- Re: Baby X is bor nagain1Richard Harnden
29 Jun 24 i   ii `* Re: Baby X is bor nagain2Michael S
30 Jun 24 i   ii  `- Re: Baby X is bor nagain1David Brown
28 Jun 24 i   i`- Re: Baby X is bor nagain1bart
28 Jun 24 i   `- Re: Baby X is bor nagain1David Brown
27 Jun 24 +* Re: Baby X is bor nagain36Tim Rentsch
27 Jun 24 i+* Re: Baby X is bor nagain2Keith Thompson
28 Jun 24 ii`- Re: Baby X is bor nagain1Tim Rentsch
28 Jun 24 i+* Re: Baby X is bor nagain11bart
28 Jun 24 ii+- Re: Baby X is bor nagain1Tim Rentsch
28 Jun 24 ii+- Re: Baby X is bor nagain1Tim Rentsch
28 Jun 24 ii+* Re: Baby X is bor nagain7Kaz Kylheku
28 Jun 24 iii+- Re: Baby X is bor nagain1Michael S
28 Jun 24 iii`* Re: Baby X is bor nagain5bart
28 Jun 24 iii +* Re: Baby X is bor nagain2bart
28 Jun 24 iii i`- Re: Baby X is bor nagain1bart
28 Jun 24 iii `* Re: Baby X is bor nagain2bart
28 Jun 24 iii  `- Re: Baby X is bor nagain1Michael S
28 Jun 24 ii`- Re: Baby X is bor nagain1bart
1 Jul 24 i`* tcc - first impression. Was: Baby X is bor nagain22Michael S
1 Jul 24 i +- Re: tcc - first impression. Was: Baby X is bor nagain1Tim Rentsch
1 Jul 24 i +* Re: tcc - first impression. Was: Baby X is bor nagain13Keith Thompson
1 Jul 24 i i+- Re: tcc - first impression. Was: Baby X is bor nagain1Keith Thompson
2 Jul 24 i i+* Re: tcc - first impression. Was: Baby X is bor nagain9Michael S
2 Jul 24 i ii+* Re: tcc - first impression. Was: Baby X is bor nagain6bart
2 Jul 24 i iii+* Re: tcc - first impression. Was: Baby X is bor nagain4Michael S
2 Jul 24 i iiii+* Re: tcc - first impression. Was: Baby X is bor nagain2bart
2 Jul 24 i iiiii`- Re: tcc - first impression. Was: Baby X is bor nagain1Michael S
3 Jul 24 i iiii`- Re: tcc - first impression. Was: Baby X is bor nagain1Michael S
2 Jul 24 i iii`- Re: tcc - first impression. Was: Baby X is bor nagain1Tim Rentsch
2 Jul 24 i ii+- Re: tcc - first impression. Was: Baby X is bor nagain1Tim Rentsch
2 Jul 24 i ii`- Re: tcc - first impression. Was: Baby X is bor nagain1James Kuyper
2 Jul 24 i i`* Re: tcc - first impression. Was: Baby X is bor nagain2Malcolm McLean
2 Jul 24 i i `- Re: tcc - first impression. Was: Baby X is bor nagain1Ben Bacarisse
2 Jul 24 i +* Re: tcc - first impression. Was: Baby X is bor nagain6Michael S
3 Jul 24 i `- Re: tcc - first impression. Was: Baby X is bor nagain1Michael S
27 Jun 24 `* Re: Baby X is bor nagain2Ben Bacarisse

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