Sanjay Patel 64b2676ca8 [InstCombine] fold ctlz/cttz-of-select with 1 or more constant arms ...

Building on:
4c44b02d87
...and adding handling for the extra operand in these intrinsics.

This pattern is discussed in:
https://llvm.org/PR50140

2021-06-21 11:04:12 -04:00

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