[PATCH] D62166: [mips] Always check that `shift and add` optimization is efficient

[Petar Avramovic via Phabricator via llvm-commits]

Petar.Avramovic accepted this revision.
Petar.Avramovic added a comment.
This revision is now accepted and ready to land.

LGTM.



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Comment at: llvm/lib/Target/Mips/MipsSEISelLowering.cpp:723
   // constant multiply into. The number is approximately how many powers
   // of two summed together that the constant can be broken down into.
+  //
----------------
This comment can be misleading. The number is approximately equal to the minimal number of powers of two that constant can be broken down to by adding or __subtracting__ them.


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https://reviews.llvm.org/D62166