[PATCH] D56305: [AArch64] Support reserving arbitrary general purpose registers

[Petr Hosek via Phabricator via llvm-commits]

phosek created this revision.
phosek added reviewers: efriedma, trong, nickdesaulniers, manojgupta.
Herald added subscribers: llvm-commits, hiraditya, kristof.beyls, javed.absar.

This is a follow up to D48580 <https://reviews.llvm.org/D48580> and D48581 <https://reviews.llvm.org/D48581> which allows reserving
arbitrary general purpose registers with the exception of registers
with special purpose (X8, X16-X18, X29, X30). This change also
generalizes some of the existing logic to rely entirely on values
generated from tablegen.


Repository:
  rL LLVM

https://reviews.llvm.org/D56305

Files:
  clang/include/clang/Driver/Options.td
  clang/lib/Driver/ToolChains/Arch/AArch64.cpp
  clang/test/Driver/aarch64-fixed-x-register.c
  llvm/lib/Target/AArch64/AArch64.td
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/AArch64/AArch64RegisterBankInfo.cpp
  llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp
  llvm/lib/Target/AArch64/AArch64RegisterInfo.td
  llvm/lib/Target/AArch64/AArch64Subtarget.cpp
  llvm/test/CodeGen/AArch64/arm64-platform-reg.ll

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