Hallo Fred, vous ecrit au Sun, 27 Nov 2022 23:04:08 +0000:
> fpc 3.3.1 does better than fpc-llvm 3.3.1... No, that is not the case. But llvm-based fpc 3.3.1 is only marginally faster than plain fpc 3.3.1 on integer calculations and not much faster (perhaps around 20%) on floating point (doubles) operations. > So fpc 3.3.1 is very good Yes, it has improved a whole lot compared to fpc 3,2,2, ESPECIALLY on floating point operations. With integer operations, it has slowed down appreciably, by about 30% (i.e. it takes nearly 50% LONGER). > or fpc-llvm 3.3.1 dont use yet all the power of llvm > or llvm is a joke. I'd not say hat, llvm is yet another C/C++ compiler for many systems, and it probabely has its place. And, llvm certainly has a place as the tool to build compilers for other languages that it is. There may be established "competitors" it DOES improve a lot against, e.g. gcc is not usually called notoriously speedy. But fpc, i.e. fpc 3.3.1, obviously is not one of them. And what these results seem to display is that it is probabaly a bad idea to compare a variant of an advanced version of an application with an older plain version of it. E.g., fpc 3.2.2 and fpc 3.3.1 llvm. They DO NOT COMPARE. The correct comarison always is between corresponding items, i.e. both the plain versions (fpc 3.2.2 vs. fpc 3.3.1) or - if available - equivalent variants (fpc 3.2.2 llvm vs. fpc 3.3.1 llvm), which do not exist for fpc. So, this seems to suggest that the llvm version of fpc is not worth switching to it, for now at least, for fpc 3.3.1. This could change in the future, but it WILL require a thorough examination of the results. Much more thorough even than I did here, if it should be definitive. -- (Weitergabe von Adressdaten, Telefonnummern u.ä. ohne Zustimmung nicht gestattet, ebenso Zusendung von Werbung oder ähnlichem) ----------------------------------------------------------- Mit freundlichen Grüßen, S. Schicktanz ----------------------------------------------------------- _______________________________________________ mseide-msegui-talk mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mseide-msegui-talk
