This is the mail archive of the
mailing list for the GCC project.
Re: Faster compilation speed
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: torvalds at transmeta dot com
- Cc: gcc at gcc dot gnu dot org
- Date: Sat, 10 Aug 02 13:47:13 EDT
- Subject: Re: Faster compilation speed
Or am I wrong?
Basically, what I'm saying is that it _does_ have everything to do with
allocation efficiency. The gcc allocators have just always been bad.
No, it doesn't. As I said, it has to do with *correctness* issues. For
example, GCC assumes that there is exactly one copy of the RTL for each
pseudo-register so that when the pseudo is forced to memory, only that
RTL needs to be changed.
It also assumes that certain other RTL is *not* shared, so that it can
be changed without affecting any others insns.
Nothing whatsoever to do with memory management.