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[GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen

Authored by volkan on Jun 7 2019, 1:19 PM.

Description

[GlobalISel] IRTranslator: Translate the intrinsics ignored by CodeGen

Summary:
Translate llvm.assume, llvm.var.annotation and llvm.sideeffect to nothing
as they have no effect on CodeGen.

Reviewers: qcolombet, aditya_nandakumar, dsanders, paquette, aemerson, arsenm

Reviewed By: arsenm

Subscribers: hiraditya, wdng, rovka, kristof.beyls, javed.absar, Petar.Avramovic, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D63022

llvm-svn: 362834