Daniel Sanders 12e6e709e9 [globalisel][tablegen] Honour priority order within nested instructions. ...

It appears that we haven't been prioritizing rules that contain nested
instructions properly. InstructionOperandMatcher didn't override
isHigherPriorityThan so it never compared the instructions/operands/predicates
inside nested instructions.

Fixes PR35926. Thanks to Diana Picus for the bug report.

llvm-svn: 322754

2018-01-17 20:34:29 +00:00

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