[llvm-bugs] [Bug 16595] Oversized vector shift not turned into undef

via llvm-bugs llvm-bugs at lists.llvm.org
Sun Sep 8 05:20:58 PDT 2019


https://bugs.llvm.org/show_bug.cgi?id=16595

Simon Pilgrim <llvm-dev at redking.me.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
            Product|new-bugs                    |libraries
             Status|NEW                         |RESOLVED
          Component|new bugs                    |Common Code Generator Code
                 CC|                            |llvm-dev at redking.me.uk

--- Comment #3 from Simon Pilgrim <llvm-dev at redking.me.uk> ---
This was fixed in DAG for llvm 6.00 - both IR and DAG will fold to undef for
out of range shift values (uniform or nonuniform).

https://godbolt.org/z/S5SXy6

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