[all-commits] [llvm/llvm-project] 71c596: [ARM][AArch64] autogenerate header file for Target...

[Tomas Matheson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 71c5964f5c0686be3319bc55a0dbfb0e3a60a917
      https://github.com/llvm/llvm-project/commit/71c5964f5c0686be3319bc55a0dbfb0e3a60a917
  Author: Tomas Matheson <Tomas.Matheson at arm.com>
  Date:   2024-04-24 (Wed, 24 Apr 2024)

  Changed paths:
    M llvm/include/llvm/TargetParser/CMakeLists.txt
    M llvm/lib/Target/AArch64/AArch64Subtarget.cpp
    M llvm/lib/Target/AArch64/AArch64Subtarget.h
    M llvm/lib/Target/ARM/ARMSubtarget.cpp
    M llvm/lib/Target/ARM/ARMSubtarget.h
    M llvm/lib/TargetParser/CMakeLists.txt
    A llvm/utils/TableGen/ARMTargetDefEmitter.cpp
    M llvm/utils/TableGen/CMakeLists.txt

  Log Message:
  -----------
  [ARM][AArch64] autogenerate header file for TargetParser from Target tablegen files (#88378)

Introduce a mechanism to share data between the ARM and AArch64 backends and
TargetParser, to reduce duplication of code. This is similar to the current
RISC-V implementation.

The target tablegen file (in this case `ARM.td` or `AArch64.td`) is
processed during building of `TargetParser` to generate the following
files in the build tree:
 - `build/include/llvm/TargetParser/ARMTargetParserDef.inc`
 - `build/include/llvm/TargetParser/AArch64TargetParserDef.inc`

For now, the use of these generated files is limited to files _outside_
of `TargetParser`. The main reason for this is that the modifications to
`TargetParser` will require additional data added to the tablegen files,
which I want to split into separate PRs.



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