Roman Tereshin 13229aff54 [GlobalISel] NFCI, Getting GlobalISel ~5% faster ...

by replacing DenseMap with IndexedMap for LLTs within MRI, as
benchmarked by cross-compiling sqlite3 amalgamation for AArch64
on x86 machine.

Reviewed By: qcolombet

Differential Revision: https://reviews.llvm.org/D46809

llvm-svn: 333125

2018-05-23 21:12:02 +00:00

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