llvm-6502/lib/Target/MSP430/CMakeLists.txt

31 lines
905 B
CMake
Raw Normal View History

set(LLVM_TARGET_DEFINITIONS MSP430.td)
tablegen(LLVM MSP430GenRegisterInfo.inc -gen-register-info)
tablegen(LLVM MSP430GenInstrInfo.inc -gen-instr-info)
tablegen(LLVM MSP430GenAsmWriter.inc -gen-asm-writer)
tablegen(LLVM MSP430GenDAGISel.inc -gen-dag-isel)
tablegen(LLVM MSP430GenCallingConv.inc -gen-callingconv)
tablegen(LLVM MSP430GenSubtargetInfo.inc -gen-subtarget)
Clean up a pile of hacks in our CMake build relating to TableGen. The first problem to fix is to stop creating synthetic *Table_gen targets next to all of the LLVM libraries. These had no real effect as CMake specifies that add_custom_command(OUTPUT ...) directives (what the 'tablegen(...)' stuff expands to) are implicitly added as dependencies to all the rules in that CMakeLists.txt. These synthetic rules started to cause problems as we started more and more heavily using tablegen files from *subdirectories* of the one where they were generated. Within those directories, the set of tablegen outputs was still available and so these synthetic rules added them as dependencies of those subdirectories. However, they were no longer properly associated with the custom command to generate them. Most of the time this "just worked" because something would get to the parent directory first, and run tablegen there. Once run, the files existed and the build proceeded happily. However, as more and more subdirectories have started using this, the probability of this failing to happen has increased. Recently with the MC refactorings, it became quite common for me when touching a large enough number of targets. To add insult to injury, several of the backends *tried* to fix this by adding explicit dependencies back to the parent directory's tablegen rules, but those dependencies didn't work as expected -- they weren't forming a linear chain, they were adding another thread in the race. This patch removes these synthetic rules completely, and adds a much simpler function to declare explicitly that a collection of tablegen'ed files are referenced by other libraries. From that, we can add explicit dependencies from the smaller libraries (such as every architectures Desc library) on this and correctly form a linear sequence. All of the backends are updated to use it, sometimes replacing the existing attempt at adding a dependency, sometimes adding a previously missing dependency edge. Please let me know if this causes any problems, but it fixes a rather persistent and problematic source of build flakiness on our end. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136023 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 00:09:08 +00:00
add_public_tablegen_target(MSP430CommonTableGen)
add_llvm_target(MSP430CodeGen
MSP430BranchSelector.cpp
MSP430ISelDAGToDAG.cpp
MSP430ISelLowering.cpp
MSP430InstrInfo.cpp
MSP430FrameLowering.cpp
MSP430MachineFunctionInfo.cpp
MSP430RegisterInfo.cpp
MSP430Subtarget.cpp
MSP430TargetMachine.cpp
MSP430SelectionDAGInfo.cpp
MSP430AsmPrinter.cpp
MSP430MCInstLower.cpp
)
add_dependencies(LLVMMSP430CodeGen intrinsics_gen)
add_subdirectory(InstPrinter)
add_subdirectory(TargetInfo)
add_subdirectory(MCTargetDesc)