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[Bug target/49865] [4.7 Regression] Unnecessary reload causes small bloat
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 27 Oct 2011 09:54:39 +0000
- Subject: [Bug target/49865] [4.7 Regression] Unnecessary reload causes small bloat
- Auto-submitted: auto-generated
- References: <bug-49865-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49865
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-27
CC| |vmakarov at gcc dot gnu.org
Known to work| |4.6.2
Ever Confirmed|0 |1
Known to fail| |4.7.0
Severity|normal |minor
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-27 09:54:39 UTC ---
Confirmed. The load is CSEd but the reg has a REG_EQUIV note pointing
to the MEM and is reloaded. An IRA regression.
Vlad, can you investigate if there is a bug?