Displaying 1 result from an estimated 1 matches for "strict_fadd".
2017 Feb 14
2
Adding FP environment register modeling for constrained FP nodes
...understand correctly, the implicit register use often (if not always) comes from TargetInstrInfo queries based on the opcode. If this is right, then I’d need to introduce a new machine opcode for any instruction that I wanted to have an implicit register use. For instance, if we just mutated ISD::STRICT_FADD to ISD::FADD and Select changed that to X86::MULSDrm, then to attach implicit MXCSR use to that I’d need a new opcode (X86::MULSDrm_Strict) that behaves just like X86::MULSDrm but has the implicit MXCSR use/def information associated with it.
Does it sound like I’m understanding this correctly?
Y...