This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/77287] Much worse code generated compared to clang (stack alignment and spills)
- From: "kobalicek.petr at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 18 Aug 2016 11:07:24 +0000
- Subject: [Bug target/77287] Much worse code generated compared to clang (stack alignment and spills)
- Authentication-results: sourceware.org; auth=none
- Auto-submitted: auto-generated
- References: <bug-77287-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77287
--- Comment #2 from Petr <kobalicek.petr at gmail dot com> ---
With '-mtune=intel' the push/pop sequence is gone, but YMM register management
remains the same - 24 memory accesses more than clang.