[llvm-bugs] [Bug 20806] [EarlyCSE, GVN, Missed Opt] invariant loads can be forwarded across aliasing stores
via llvm-bugs
llvm-bugs at lists.llvm.org
Wed Jul 19 10:14:20 PDT 2017
https://bugs.llvm.org/show_bug.cgi?id=20806
Geoff Berry <gberry at codeaurora.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
CC| |gberry at codeaurora.org
Status|NEW |RESOLVED
--- Comment #2 from Geoff Berry <gberry at codeaurora.org> ---
The EarlyCSE case has been implemented for some time, even without MemorySSA.
It looks like the wrong GVN test case was mistakenly attached (since it has no
occurrences of invariant.load), but this optimization has also been implemented
in GVN (see llvm/test/Transforms/GVN/PRE/invariant-load.ll).
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