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Re: PATCH to remove unnecessary NOTE_INSN_DELETED
- To: law at cygnus dot com
- Subject: Re: PATCH to remove unnecessary NOTE_INSN_DELETED
- From: Joern Rennecke <amylaar at cygnus dot co dot uk>
- Date: Thu, 4 Nov 1999 05:45:39 GMT
- Cc: gcc-patches at gcc dot gnu dot org, amylaar at cygnus dot co dot uk
- Newsgroups: cygnus.egcs.patches
: debug these monsters, we just bite the bullet and eat the extra memory needed
: when we do not squash uids & regnos.
That is fine if it works, but in acses of memory corruption or reading
uninitialized memory it might be impossible to observe the bug once the
squashing is disabled.
So I think we should have both, a flag to disable renumbering and a
translation table.
: I still suspect there's significant saving to realize from regno squashing a
: quick grep shows:
Well, these are all linear. More interesting are resets that are allocated
for each insn.