[PATCH] D87316: Mark FMOV constant materialization as being as cheap as a move.

[Owen Anderson via Phabricator via llvm-commits]

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This prevents us from doing things like LICM'ing it out of a loop,
which is usually a net loss because we end up having to spill a
callee-saved FPR to accomodate it.

This does perturb instruction scheduling around this instruction,
so a number of tests had to be updated to account for it.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D87316

Files:
  llvm/lib/Target/AArch64/AArch64InstrInfo.td
  llvm/test/CodeGen/AArch64/arm64-aapcs.ll
  llvm/test/CodeGen/AArch64/fmov-imm-licm.ll
  llvm/test/CodeGen/AArch64/fp-cond-sel.ll
  llvm/test/CodeGen/AArch64/func-calls.ll
  llvm/test/CodeGen/AArch64/pow.ll
  llvm/test/CodeGen/AArch64/swifterror.ll

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