[vlovich123]

What is the performance delta between debug and prod? What is the performance delta between tcc and GCC -O0 if you’ve had a chance to compare?

I also disagree with others that using a different compiler is somehow cheating. Engineering is about winning and choosing the right tradeoffs. Being able to choose a faster backend for debug is one that all compilers offer. Most people spend most of the time living with -O0 builds because they need to debug the code. Heck, 90% of complaints about Rust compile times are about its performance making a debug build and it’s where that dev team spends its efforts. This criticism seems misplaced although it’s not clear to me why there’s this much pushback that most other languages don’t see.

[amedvednikov]

No difference between tcc and gcc -O0, despite tcc compiling it 10 times faster.

20%-100% difference between gcc -O0 and -O2.