[llvm-bugs] [Bug 13549] Reassociate: should we convert c*c+c+c+c*c*c to c*(c*c+c+2)? We currently have c*(c*c+c)+c*2.

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=13549

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|new bugs                    |Scalar Optimizations
            Version|unspecified                 |trunk
                 CC|                            |llvm-dev at redking.me.uk
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED
            Product|new-bugs                    |libraries

--- Comment #2 from Simon Pilgrim <llvm-dev at redking.me.uk> ---
Resolving - this was fixed sometime around clang 3.8
https://godbolt.org/z/c7vvdc

define i64 @_Z14ComputeMemSizei(i32 %0) {
  %2 = sext i32 %0 to i64
  %3 = mul nsw i64 %2, %2
  %4 = add nuw nsw i64 %3, 2
  %5 = mul i64 %4, %2
  %6 = add i64 %5, %3
  ret i64 %6
}

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