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[Bug target/52080] Stores to bitfields introduce a store-data-race on adjacent data
- From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 01 Feb 2012 17:45:08 +0000
- Subject: [Bug target/52080] Stores to bitfields introduce a store-data-race on adjacent data
- Auto-submitted: auto-generated
- References: <bug-52080-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52080
--- Comment #6 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-02-01 17:45:08 UTC ---
get_best_mode returns DImode because of:
/* Nonzero if access to memory by bytes is slow and undesirable.
For RISC chips, it means that access to memory by bytes is no
better than access by words when possible, so grab a whole word
and maybe make use of that. */
#define SLOW_BYTE_ACCESS 1