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[Bug tree-optimization/27004] [4.1/4.2/4.3 Regression] Insane amount of memory needed at -O1 and above because of salias and large switch
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Nov 2007 13:34:06 -0000
- Subject: [Bug tree-optimization/27004] [4.1/4.2/4.3 Regression] Insane amount of memory needed at -O1 and above because of salias and large switch
- References: <bug-27004-7849@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenth at gcc dot gnu dot org 2007-11-04 13:34 -------
Some numbers (-O):
4.0.4 needs 596MB peak
4.1.2 needs 2GB peak (and a lot of time)
4.2.2 same as 4.1.2
4.3.0 same as 4.2.2
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27004