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Summary:
This patch introduces the ROLBRd and RORBRd pseudo-instructions,
which implemenent the "traditional" rotate operations; instead of
the AVR rotate instructions that use the carry bit.
The code is not optimized at all. Especially when dealing with
loops of rotate instructions, this codegen should be improved some
day.
Related bug: 41358 <https://bugs.llvm.org/show_bug.cgi?id=41358>
//Note//: This is my first submitted patch.
Reviewers: dylanmckay, Jim
Reviewed By: dylanmckay
Subscribers: hiraditya, llvm-commits, dylanmckay, dsprenkels
Tags: #llvm
Patched by dsprenkels (Daan Sprenkels)
Differential Revision: https://reviews.llvm.org/D60365
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