Ian Lance Taylor schrieb:
Georg-Johann Lay <avr@xxxxxxxx> writes:iii) Expand into MOV+LSHIFTRT and allow the resulting const in *movsi_insn: CSE et. al. will reconstruct the original constant and replace MOV+LSHIFTRT with a single SET: Bad: expanding was in vain and we Goto i)I think this is the option you should use. You should use TARGET_RTX_COSTS to make the constants which may not be immediate operands expensive. Then CSE will not reconstruct them.
Jepp, that works. Thanks a lot! Georg-Johann
