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Kristof Beyls
fe183150a4
[GlobalISel] Make multi-step legalization work.
In r301116, a custom lowering needed to be introduced to be able to legalize 8 and 16-bit divisions on ARM targets without a division instruction, since 2-step legalization (WidenScalar from 8 bit to 32 bit, then Libcall the 32-bit division) doesn't work. This fixes this and makes this kind of multi-step legalization, where first the size of the type needs to be changed and then some action is needed that doesn't require changing the size of the type, straighforward to specify. Differential Revision: https://reviews.llvm.org/D32529 llvm-svn: 306806
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