/* test_rs6000_sda.cpp */
/* Sample code to test the "sda optimization" in the GCC rs6000 port. */

/* Look at the assembler generated instructions, varying the -G compiler
	option value. */

/* Comments below assume that -msdata=eabi or -msdata=sysv,
   with other values of -msdata, no sda efficient addressing should occur. */

int sda_array[2000] __attribute__((section (".sbss")));

char byte_v;
short short_v;
long long_v;

char peripheral_register __attribute__((section (".periph_reg_sect")));

int * function(void)
{
   peripheral_register=0;	/* should never use sda efficient addressing */

	sda_array[0]=1;	/* should always use sda efficient addressing */
	sda_array[100]=2;	/* should always use sda efficient addressing */
	sda_array[1000]=3;	/* should always use sda efficient addressing */

	return sda_array	/* should always use sda efficient address computation */
			+byte_v	/* should use sda efficient addressing iif -G option >= 1 */
			+short_v	/* should use sda efficient addressing iif -G option >= 2 */
			+long_v;	/* should use sda efficient addressing iif -G option >= 4 */
}