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/* bug-2708.c
The STM8 peephole optimizer didn't like indirect addressing modes in inline asm.
*/
#include <testfwk.h>
#include <stdint.h>
#ifdef __SDCC
#pragma std_c99
#endif
uint8_t *cp;
void f1(void)
{
*cp >>= 1;
}
#ifdef __SDCC_stm8
void f2(void)
{
__asm
srl [_cp]
__endasm;
}
void f3(void)
{
__asm
ldw y, _cp
srl (y)
__endasm;
}
void f4(void)
{
__asm
ld a, [_cp]
srl a
ld [_cp], a
__endasm;
}
void f5(void)
{
__asm
clrw x
srl ([_cp], x)
__endasm;
}
#else
#define f2 f1
#define f3 f1
#define f4 f1
#define f5 f1
#endif
void testBug(void)
{
uint8_t c;
cp = &c;
c = 0xaa;
f1();
ASSERT(c == 0x55);
c = 0xaa;
f2();
ASSERT(c == 0x55);
c = 0xaa;
f3();
ASSERT(c == 0x55);
c = 0xaa;
f4();
ASSERT(c == 0x55);
c = 0xaa;
f5();
ASSERT(c == 0x55);
}
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