a757c4e74e
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.
To-do ----- * Instruction encodings * Tailcalls * Investigate loop alignment * Add builtins