Sanjay Patel 7bb8bfa062 [InstCombine] fix miscompile from vector select substitution ...

This is similar to the fix in c590a9880d ( PR49832 ), but
we missed handling the pattern for select of bools (no compare
inst).

We can't substitute a vector value because the equality condition
replacement that we are attempting requires that the condition
is true/false for the entire value. Vector select can be partly
true/false.

I added an assert for vector types, so we shouldn't hit this again.
Fixed formatting while auditing the callers.

https://llvm.org/PR50500

2021-05-30 07:11:58 -04:00

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