libffi/src/kvx/asm.h - gcc - Git at Google

 /* args are passed on registers from r0 up to r11 => 12*8 bytes */
 #define REG_ARGS_SIZE (12*8)
 #define KVX_REGISTER_SIZE (8)
 #define KVX_ABI_SLOT_SIZE (KVX_REGISTER_SIZE)
 #define KVX_ABI_MAX_AGGREGATE_IN_REG_SIZE (4*KVX_ABI_SLOT_SIZE)
	/* args are passed on registers from r0 up to r11 => 128 bytes /
	#define REG_ARGS_SIZE (12*8)
	#define KVX_REGISTER_SIZE (8)
	#define KVX_ABI_SLOT_SIZE (KVX_REGISTER_SIZE)
	#define KVX_ABI_MAX_AGGREGATE_IN_REG_SIZE (4*KVX_ABI_SLOT_SIZE)