No, it doesn't imply that. It's just that if your code doesn't need 32 different vector variables then you can step down to, say, 4 variables with 8x longer re

No, it doesn't imply that. It's just that if your code doesn't need 32 different vector variables then you can step down to, say, 4 variables with 8x longer registers for more efficiency. You need to know how many live variables your code has (which the compiler knows), not how long the registers are.