[Bug rtl-optimization/53352] Incorrect CSE optimization on RTL expressions with a paradoxical subreg

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53352

Steven Bosscher <steven at gcc dot gnu.org> changed:

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                 CC|                            |steven at gcc dot gnu.org

--- Comment #4 from Steven Bosscher <steven at gcc dot gnu.org> 2012-05-17 18:29:27 UTC ---
(In reply to comment #3)

That test case isn't particularly good, either. If something like IPA-CP or
inlining becomes the default at -O1, your whole test cases optimizes to a
no-op. And, at least AFAICT, your test case doesn't even specifically test for
the incorrect transformation.