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[Bug middle-end/52419] Wrong expansion of misaligned vector store
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 29 Feb 2012 17:46:08 +0000
- Subject: [Bug middle-end/52419] Wrong expansion of misaligned vector store
- Auto-submitted: auto-generated
- References: <bug-52419-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52419
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-02-29 17:46:08 UTC ---
Author: jakub
Date: Wed Feb 29 17:45:55 2012
New Revision: 184666
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184666
Log:
PR middle-end/52419
* expr.c (expand_assignment): If doing misaligned store that doesn't
cover all mode bits, perform a RMW cycle.
* gcc.dg/torture/pr52419.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr52419.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/expr.c
trunk/gcc/testsuite/ChangeLog