Ever wanted to know who's that great chap running Compiler Explorer? Mike Godbolt gave a talk:
#CompilerExplorer
[#Compiler] Day 1 of #AoCO2025 Study Notes
While the original uses #CompilerExplorer, I wanted to replicate the analysis locally.
In this post, I have used #gcc, #clang, llvm-objdump and #LLDB to analyze.
Read more here: https://gapry.github.io/2026/01/01/Advent-of-Compiler-Optimisations-Study-Notes-01.html
Talking about that, #MattGodbolt's #CompilerExplorer supports #ocaml, so you can get an idea how to somewhat optimize for code size :sourire:
#compilation #compiler
RE: https://hachyderm.io/@mattgodbolt/115689717135274179
Another #AbsoluteBanger from @mattgodbolt's Advent of Compiler Optimisations, in which the compiler knows when to stop being clever because it knows modern CPUs with all their mad out-of-order pipelining jibber-jabber don't need any help - and he shows us a tool on #CompilerExplorer for looking into that. Read this one, but then watch the video too.
Slurrrrrrp....... Ahhh! @mattgodbolt
@uecker @Codeberg @mattgodbolt
Wat?
As a Codeberg member myself, I checked your example here as well. The @compiler_explorer UI seems to handle the link just fine: if you click on the offered link, the raw file content is shown as you would expect. Then, the compiler is complaining about the file where the CE-internal machinery has supposedly put down the source text that it has downloaded from Codeberg.
So, there seem to be two different code paths in play. One, close to the UI, that works. And another one, hidden in the background, that doesn't.
More thanks to Matt Godbolt for today's episode of #AdventOfCompilerOptimisations, where the only horrors are in the tortured C code that gets turned into beautiful elegant assembler. The golden moment was the footnote alerting me to the existence of #CompilerExplorer's "optimisation pipeline explorer".
My #compilerexplorer #arm64 reference mug just arrived and is awesome! thanks @mattgodbolt !
I didn’t realize that #CompilerExplorer had become this…complicated 😰 — kudos to Matt Godbolt, et al for running it:
“How Compiler Explorer Works In 2025”, Matt Godbolt (https://xania.org/202506/how-compiler-explorer-works).
On HN: https://news.ycombinator.com/item?id=44183299
On Lobsters: https://lobste.rs/s/ocu642/how_compiler_explorer_works_2025
🥳🎉 In the dystopian wonderland of 2025, Compiler Explorer is the AI overlord, churning out 92 million compilations like it's flipping burgers 🍔. Who'd have thought a hacky weekend project would grow into Skynet's compiler? 🙃
https://xania.org/202506/how-compiler-explorer-works #dystopianfuture #AIoverlord #CompilerExplorer #techtrends #weekendproject #HackerNews #ngated
How Compiler Explorer Works in 2025
https://xania.org/202506/how-compiler-explorer-works
#HackerNews #CompilerExplorer #2025 #FutureTech #Programming #Innovation #Coding
Fascinating (and a bit sad):
“Compiler Explorer And The Promise Of URLs That Last Forever”, Matt Godbolt (https://xania.org/202505/compiler-explorer-urls-forever).
On HN: https://news.ycombinator.com/item?id=44117722
On Lobsters: https://lobste.rs/s/rqc5yc/compiler_explorer_promise_urls_last
#Internet #Google #URLShortener #AWS #CompilerExplorer #SelfSufficiency
Compiler Explorer and the Promise of URLs That Last Forever
https://xania.org/202505/compiler-explorer-urls-forever
#HackerNews #CompilerExplorer #URLsForever #TechInnovation #SoftwareDevelopment #Programmers
In which meaningless #benchmarks comparing the #performance of different #ProgrammingLanguages really annoy Casey Muratori 😅:
#Speed #Optimization #Compilers #WTF #Programming #CompilerExplorer #GCC
Consider: semi-offline #CompilerExplorer that lazily downloads compilers using #Nix or #Guix .
Couple years ago it was good and very useful tool.
Now it is glitchy sh#t...
Scripts only became working after es2022 smoothie re syntax was added to browser, after weakref (which MDN says avoid to use) was polyfilled...
And... it still cannot render correctly. What was improved in frontend in last 2 years??? It seems, nothing...
#frontend #front #godbolt #ce #compilerexplorer #js #libraries
#compilerexplorer question: After some trial and errer, I managed to creare and execute a C++ cmake project on CE. How do I get rid of the initial " source #1" window that is auto-created when you reset UI and code? As opposed to all other windows. It does not have the obvious "x".
On my recent India visit, I visited multiple academic campuses and addressed over 200 CS students (and 30 faculty). Regrettably, I did not once use Compiler Explorer (not even mention it) in any of my talks. 🥺
The topics of the talks just did not lend themselves to bringing up Compiler Explorer, but still I feel so ungrateful, like I let down someone. 😳
I was so hoping I could include JUnit with Java compiler/executor on Compiler Explorer, but alas. 😞
I don't know how hard it is to accomplish, but I filed a library request. Please vote and opine:
https://github.com/compiler-explorer/compiler-explorer/issues/6779
Client Info
Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst