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/* bug-2368.c
Wrong byte order in optimization of pointer assignment for stm8
*/
#include <testfwk.h>
#include <stdint.h>
#ifdef __SDCC
#pragma std_c99
#endif
#if defined (__SDCC_stm8) || defined (__SDCC_z80) || defined(__SDCC_z80n) || defined (__SDCC_z180) || defined (__SDCC_r2k) || defined (__SDCC_r2ka) || defined (__SDCC_r3ka)
#define TEST_VAL 0x1234
#ifdef __SDCC_stm8 // data memory in lower half of 16-bit address space
#define loc ((volatile uint16_t *) 0x7fd)
#else // data memory in upper half of 16-bit address space
#define loc ((volatile uint16_t *) 0x87fd)
#endif
volatile uint16_t *p = loc;
void foo1 (void)
{
*p = TEST_VAL;
}
void foo2 (void)
{
*loc = TEST_VAL;
}
#endif
void testBug (void)
{
#if defined (__SDCC_stm8) || defined (__SDCC_z80) || defined(__SDCC_z80n) || defined (__SDCC_z180) || defined (__SDCC_r2k) || defined (__SDCC_r2ka) || defined (__SDCC_r3ka)
volatile uint16_t *q = loc;
foo1 ();
ASSERT (*loc == TEST_VAL);
ASSERT (*p == TEST_VAL);
ASSERT (*q == TEST_VAL);
foo2 ();
ASSERT (*loc == TEST_VAL);
ASSERT (*p == TEST_VAL);
ASSERT (*q == TEST_VAL);
*q = TEST_VAL;
ASSERT (*loc == TEST_VAL);
ASSERT (*p == TEST_VAL);
ASSERT (*q == TEST_VAL);
#endif
}
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