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[Bug target/39137] [4.4 Regression] -mpreferred-stack-boundary=2 causes lots of dynamic realign
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Feb 2009 14:52:17 -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 #22 from hjl dot tools at gmail dot com 2009-02-17 14:52 -------
-mpreferred-stack-boundary=2 can also be used to generate psABI
conforming code. I think we need a new option to align DImode
to 4 byte on stack if we want to change DImode alignment on stack.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39137