Have you seen CompilerExplorer?

[Darian Miller 361]

There is a long list of languages to pick from and you can input code and see assembler.  It currently supports a few different versions of FPC.

 

From: https://godbolt.org/

 

 

[Guest]

One of the greatest open source projects of our time !

[Arnaud Bouchez 407]

Old versions of FPC, sadly.

Gareth did some optimizations included in 3.2 and trunk... worth seeing it live in the generated asm!

I have seen generated asm being improved in FPC since years. I sadly can't say the same with Delphi - especially on cross-platform, e.g. about inlining floating point operations.

 

I use godbolt since years to check the asm generated by latest gcc with high-level of optimization and opcodes.
It is useful to have some reference code when writing some SSE2 or AVX/AVX2 asm.

Edited August 4, 2020 by Arnaud Bouchez