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Which optimization levels affect gimple?
- From: "Paulo J. Matos" <pocm at soton dot ac dot uk>
- To: gcc at gcc dot gnu dot org
- Date: Wed, 24 Jan 2007 17:44:57 +0000
- Subject: Which optimization levels affect gimple?
Hi all,
Which optimization levels affect gimple?
I've tried for a program to check what kind of gimple code you get
with -fdump-tree-gimple and -O0 and -O3 have different results,
however, -O3 and -O9 have exactly the same output. Will -Ox for x > 3,
generate the same gimple trees? (i.e., are done in backend of gcc?)
Regards,
--
Paulo Jorge Matos - pocm at soton.ac.uk
http://www.personal.soton.ac.uk/pocm
PhD Student @ ECS
University of Southampton, UK