[llvm-bugs] [Bug 37952] Miscompile with -basicaa-recphi=1 -gvn

via llvm-bugs llvm-bugs at lists.llvm.org
Fri Jul 10 01:52:42 PDT 2020


https://bugs.llvm.org/show_bug.cgi?id=37952

Dave Green <david.green at arm.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
                 CC|                            |david.green at arm.com

--- Comment #2 from Dave Green <david.green at arm.com> ---
This was the same problem as D82987, where a MustAlias between %results.0 and
%results doesn't imply a MustAlias for every element of the %result.current
phi.

With and without the option now produce identical code:
 https://godbolt.org/z/6W8hc8

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