Currently LibcallLoweringInfo is defined inside of TargetLowering, which is owned by the subtarget. Pass in the subtarget so we can construct LibcallLoweringInfo with the subtarget. This is a temporary step that should be revertable in the future, after LibcallLoweringInfo is moved out of TargetLowering.
This is directly available in TargetInstrInfo
Both conceptually belong to the same subtarget, so it should not be necessary to pass in the context TargetRegisterInfo to any TargetInstrInfo member. Add this reference so those superfluous arguments can be removed. Most targets placed their TargetRegisterInfo as a member in TargetInstrInfo. A few had this owned by the TargetSubtargetInfo, so unify all targets to look the same.
This will make it possible for tablegen to make subtarget dependent decisions without adding new arguments to every target. --------- Co-authored-by: Sergei Barannikov <barannikov88@gmail.com>
Rearrange decode functions to be before including the generated disassembler code and eliminate forward declarations for most of them. This is possible because `fieldFromInstruction` is now in MCDecoder.h and not in the generated disassembler code.
Extract fixed functions generated by decoder emitter into a new MCDecoder.h header.
That is, on all targets except ARM and AArch64. This field used to be required due to a bug, it was fixed long ago by 23423c0ea8d414e56081cb6a13bd8b2cc91513a9.