Karthik Senthil d9c52c31a0 [LV][IVDescriptors] Fix recurrence identity element for FMin and FMax reductions ...

For a min and max reduction idioms, the identity (i.e. neutral) element
should be datatype's highest and lowest possible values respectively.
Current implementation in IVDescriptors incorrectly returns -Inf for FMin
reduction and +Inf for FMax reduction. This patch fixes this bug which
was causing incorrect reduction computation results in loops vectorized
by LV.

Differential Revision: https://reviews.llvm.org/D137220

2022-11-04 10:39:37 -04:00

62 KiB

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