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[Bug target/55527] Passing structures containing floats by value in calls are underoptimized
- 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, 29 Nov 2012 10:03:26 +0000
- Subject: [Bug target/55527] Passing structures containing floats by value in calls are underoptimized
- Auto-submitted: auto-generated
- References: <bug-55527-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55527
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-11-29
Component|other |target
Ever Confirmed|0 |1
Severity|normal |enhancement
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-11-29 10:03:26 UTC ---
Confirmed. It's a mess from expansion on (assembly is better with -mtune=core2
which avoids going through the stack). It's of course an ABI issue - I'm not
sure where to best look for opportunities to optimize this.