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[Bug rtl-optimization/67145] [6 Regression] associativity from pseudo-reg ordering
- From: "segher at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 02 Mar 2016 19:34:44 +0000
- Subject: [Bug rtl-optimization/67145] [6 Regression] associativity from pseudo-reg ordering
- Auto-submitted: auto-generated
- References: <bug-67145-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67145
--- Comment #15 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Thanks Richard, that is a much safer solution for now.
FWIW, your original patch regressed at least code generation for
0xffffffff00000000ULL - a on powerpc (-m32), and various other
things change (although the end result is the same for trivial
testcases).
It's not just rs6000 btw, at least the sh backend has the same
issues.