Alexander Shaposhnikov 8b5f0c9111 [tablegen] Avoid creating a temporary vector in getInstructionCase ...

Record::getValues returns ArrayRef which has a cast operator
to std::vector, as a result a temporary vector is created
if the type of the variable is const std::vector& 
that is suboptimal in this case.

Differential revision: https://reviews.llvm.org/D34969

Test plan: make check-all

llvm-svn: 307063

2017-07-04 06:16:53 +00:00

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