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Commit ba38eee8 authored by Hao Liu's avatar Hao Liu
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AArch64: The pattern match should check the range of the immediate value. 

Or we can generate some illegal instructions.
E.g. shrn2 v0.4s, v1.2d, #35. The legal range should be in [1, 16].

llvm-svn: 195941
parent 24173dd4
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