Hiroshi Yamauchi dfeb797455 [PGO][CHR] Speed up following long use-def chains. ...

Summary: Avoid visiting an instruction more than once by using a map.

Reviewers: davidxl

Reviewed By: davidxl

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D62262

llvm-svn: 361416

2019-05-22 18:37:34 +00:00

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