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[Bug target/39137] [4.4 Regression] -mpreferred-stack-boundary=2 causes lots of dynamic realign
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 10 Feb 2009 20:48:07 -0000
- Subject: [Bug target/39137] [4.4 Regression] -mpreferred-stack-boundary=2 causes lots of dynamic realign
- References: <bug-39137-87@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from jakub at gcc dot gnu dot org 2009-02-10 20:48 -------
This would mean -Os vs. -O2 gives different __alignof__(long long) values, I
think that's a bad idea. I think a new option to disable dynamic realignment
or at least do that if estimated stack size is <= 64 bits would be better.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39137