[PATCH] D54278: [SelectionDAG] Teach getNode to constant fold SIGN/ZERO/ANY_EXTEND_VECTOR_INREG

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

I removed the custom combine in r348237. This patch doesn't provide any test changes. Probably due to a combination of the DAG combine for constant folding being enabled to run later, the MULH lowering being legalized earlier, and constant vectors being explicitly handled in the MUL/MULH lowering.


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  https://reviews.llvm.org/D54278/new/

https://reviews.llvm.org/D54278