[clang] [llvm] [PowerPC] frontend get target feature from backend with cpu name (PR #137670)

[Slava Zakharin via llvm-commits]

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@@ -8,6 +8,12 @@ if (HAS_WERROR_GLOBAL_CTORS AND NOT LLVM_HAS_NOGLOBAL_CTOR_MUTEX)
   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=global-constructors")
 endif()
 
+set(LLVM_TARGET_DEFINITIONS ${LLVM_MAIN_SRC_DIR}/lib/Target/PowerPC/PPC.td)
+
+tablegen(LLVM PPCGenSubtargetInfo.inc -gen-subtarget -I${LLVM_MAIN_SRC_DIR}/lib/Target/PowerPC)
+add_public_tablegen_target(PPCGenSubtargetInfo)
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vzakhari wrote:

Hmm, I do see `add_dependencies` below now.  So maybe it is a red herring, and my cmake config phase did not work out well.

https://github.com/llvm/llvm-project/pull/137670