Tim Northover 8b1240b0f0 ARM: handle post-indexed NEON ops where the offset isn't the access width. ...

Before, we assumed that any ConstantInt offset was precisely the access width,
so we could use the "[rN]!" form. ISelLowering only ever created that kind, but
further simplification during combining could lead to unexpected constants and
incorrect codegen.

Should fix PR32658.

llvm-svn: 300878

2017-04-20 19:54:02 +00:00

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