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* [AArch64] Refactor floating point materialization. NFCAdhemerval Zanella2019-03-181-0/+35
It splits the login of actual instruction emission away from the logic that figures out the appropriate sequence on AArch64ExpandPseudo::expandMOVImm. The new function AArch64_IMM::expandMOVImm, which return the list of the instructions to materialize the immediate constant, is implemented on a separated unit because it will be used in a subsequent patch to optimize floating point materialization. Reviewers: efriedma Differential Revision: https://reviews.llvm.org/D58915 llvm-svn: 356387
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