Hello, I have a problem about the definition of SHIFT_COUNT_TRUNCATED. MIPS is a SHIFT_COUNT_TRUNCATED target, and has it defined as 1. While loongson-specific vector insns are not SHIFT_COUNT_TRUNCATED. That means that the macro depends on the machine mode. One simple resolution may be,
#define SHIFT_COUNT_TRUNCATED (TARGET_LOONGSON_2EF ? 0 : 1) but this will disable the common optimization for loongson target. Another way is to use a target hook to handle this problem, but this requires many changes. I'd like to ask suggestions for this. Thanks, Mingjie
