Zhongyunde 05aae0839f Reland [AArch64][NFC] Call the API getVScaleRange directly ...

Use the maximum 64 for BitWidth of getVScaleRange to avoid returning an empty range.

the previous changes bring in a Buildbot failure because MinSVEVectorSize = MinSVEVectorSize.
    error: explicitly assigning value of variable of type 'unsigned int' to itself [-Werror,-Wself-assign]

Reviewed By: sdesmalen, nikic, dmgreen
Differential Revision: https://reviews.llvm.org/D155708

2023-07-26 18:55:31 +08:00

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