Sanjay Patel 4e44c22c97 [ValueTracking][InstCombine] restrict FP min/max matching to avoid miscompile ...

This is a long-standing FIXME with a non-FMF test that exposes
the bug as shown in issue #57357.

It's possible that there's still a way to miscompile by
mis-identifying/mis-folding FP min/max patterns, but
this patch only exposes a couple of seemingly minor
regressions while preventing the broken transform.

2022-08-25 16:52:40 -04:00

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