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[Bug c++/49519] [4.7 Regression] Revision 175272 miscompiled 447.dealII in SPEC CPU 2006
- From: "kirill.yukhin at intel dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 6 Jul 2011 08:48:09 +0000
- Subject: [Bug c++/49519] [4.7 Regression] Revision 175272 miscompiled 447.dealII in SPEC CPU 2006
- Auto-submitted: auto-generated
- References: <bug-49519-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49519
--- Comment #13 from Yukhin Kirill <kirill.yukhin at intel dot com> 2011-07-06 08:47:20 UTC ---
I agree, that there is no problem with GIMPLE. As I mentioned we may just
forbid tailcall opt for non-MEMREFS, but I suspect it will lead to significant
perf. degradation.
BTW, I am to extract simple testcase by now