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Commit 44e2c6a4 authored by Dinar Temirbulatov's avatar Dinar Temirbulatov
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[AArch64][SVE] Use PTRUE instruction instead of WHILELO if the range is... 

[AArch64][SVE] Use PTRUE instruction instead of WHILELO if the range is appropriate for predicator constant.

While get_active_lane_mask lowering it uses WHILELO instruction,
but forconstant range suitable for PTRUE then we could issue PTRUE instruction
instead.

Differential Revision: https://reviews.llvm.org/D137547
parent 57045982
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