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[Bug target/17959] -mpowerpc64 can cause worse code than without it
- From: "sayle at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 30 Mar 2006 17:47:53 -0000
- Subject: [Bug target/17959] -mpowerpc64 can cause worse code than without it
- References: <bug-17959-6528@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #2 from sayle at gcc dot gnu dot org 2006-03-30 17:47 -------
Subject: Bug 17959
Author: sayle
Date: Thu Mar 30 17:47:48 2006
New Revision: 112543
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=112543
Log:
PR target/17959
* expr.c (emit_group_store): Optimize group stores into a pseudo
register by using a paradoxical subreg to initialize the destination
if the first or last member of the group specifies a "low part".
Modified:
trunk/gcc/ChangeLog
trunk/gcc/expr.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17959