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[Bug target/46716] [4.3/4.4/4.5/4.6 Regression] bad code generated with -mno-sse2 -m64
- 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: Tue, 30 Nov 2010 12:22:38 +0000
- Subject: [Bug target/46716] [4.3/4.4/4.5/4.6 Regression] bad code generated with -mno-sse2 -m64
- Auto-submitted: auto-generated
- References: <bug-46716-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46716
--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2010-11-30 12:22:26 UTC ---
I think there is a dup somewhere. Note that IMHO disabling sse2 makes the
code suspicious as it cannot fulfill the ABI (I think the kernel uses
-mno-sse2 to disable use of SSE registers, not just non-move SSE instructions
for example).