[llvm-bugs] [Bug 34474] Failure to multiply 'pow2 +/-1' vectors with shl+add/sub

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=34474

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|ASSIGNED                    |RESOLVED

--- Comment #9 from Simon Pilgrim <llvm-dev at redking.me.uk> ---
(In reply to Sanjay Patel from comment #8)
> Negative constant support added here:
> http://llvm.org/viewvc/llvm-project?view=revision&revision=342844
> 
> (Looks like Phab-equivalent notifications/links for commits haven't been
> generated since sometime yesterday.)
> 
> Still not sure if we want to address the pmullw/pmulld questions within this
> report?

Thanks Sanjay, I think we can close this.

Re PMULLW/PMULLD - this maybe useful for some cases (FeatureSlowPMULLD,
constant pool size, broadcast-vs-hoisted-vs-non-hoisted constants etc.) but
that can wait for now.

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