[AArch64] Refactor floating point materialization. NFC
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@356387
91177308-0d34-0410-b5e6-
96231b3b80d8
projects / llvm / commit