Change Details

Look through copy in GIM_CheckOpcode allows selection of a few extra patterns that are hidden by some copy instructions.

Introduce g_maybe_cross_reg_bank_copy, operator that can be used in patterns to ignore cross register bank copies. Operator will be recognized by global-isel emitter and ignored by sdag emitter (sdag uses types not register banks). Generates GIM_CheckOpcodeIgnoreCopies instead of GIM_CheckOpcode. Does not affect complexity of the pattern.

Look through copy in GIM_CheckOpcode allows selection of a few extra patterns that are hidden by some copy instructionsIntroduce g_maybe_cross_reg_bank_copy, operator that can be used in patterns to ignore cross register bank copies. Operator will be recognized by global-isel emitter and ignored by sdag emitter (sdag uses types not register banks). Generates GIM_CheckOpcodeIgnoreCopies instead of GIM_CheckOpcode. Does not affect complexity of the pattern.