[PATCH] D63210: gn build: Add NVPTX target

[Nico Weber via Phabricator via llvm-commits]

thakis created this revision.
thakis added a reviewer: phosek.
Herald added subscribers: hiraditya, jholewinski.
Herald added a project: LLVM.

The NVPTX target is a bit unusual in that it's the only target without a disassembler, and one of three targets without an asm parser (and the first one of those three in the gn build). NVPTX doesn't have those because it's not a binary format.

The CMake build checks for the existence of {AsmParser,Disassembler}/CMakeLists.txt when setting LLVM_ENUM_ASM_PARSERS / LLVM_ENUM_DISASSEBLERS (http://llvm-cs.pcc.me.uk/CMakeLists.txt#744). The GN build doesn't want to hit the disk for things like this, so instead I'm adding explicit `targets_with_asm_parsers` and `targets_with_disassemblers` lists. Since both are needed rarely, they are defined in their own gni files.


https://reviews.llvm.org/D63210

Files:
  llvm/utils/gn/TODO.txt
  llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn
  llvm/utils/gn/secondary/llvm/lib/Target/BUILD.gn
  llvm/utils/gn/secondary/llvm/lib/Target/NVPTX/BUILD.gn
  llvm/utils/gn/secondary/llvm/lib/Target/NVPTX/MCTargetDesc/BUILD.gn
  llvm/utils/gn/secondary/llvm/lib/Target/NVPTX/TargetInfo/BUILD.gn
  llvm/utils/gn/secondary/llvm/lib/Target/targets.gni
  llvm/utils/gn/secondary/llvm/lib/Target/targets_with_asm_parsers.gni
  llvm/utils/gn/secondary/llvm/lib/Target/targets_with_disassemblers.gni

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