Hi all,
Magnus Hagander wrote:
Personally, in my development tree I use a Makefile.custom containing
# back off optimization unless profiling
ifeq ($(PROFILE),)
CFLAGS:= $(patsubst -O2,-O1,$(CFLAGS))
endif
-O1 still generates "uninitialized variable" warnings but the code is a
lot saner to step through ... not perfect, but saner. It's been a
workable compromise for a long time. I don't recommend developing with
-O0, exactly because it disables some mighty valuable warnings.
Agreed. I use -O1 by default myself, unless I am doing performance testing.
Something for the developers FAQ perhaps? I confess I did not know of
Makefile.custom :-D
I did not know, either, but would have been glad, had I found such info
a few weeks ago when I started digging into the pg source ;)
And while we are at it, how about some CFLAGS="-DOPTIMIZER_DEBUG"
sweetness for the debugging section in the Dev FAQ?
Are there any other macros that enable some more debug output? (Or is
there a place where all this has already been documented?)
Cheers,
Matthias
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