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/* Test for bugs in equality comparison that are sensitive to regoster allocation (as #2621 was)
type: unsigned long, unsigned long long
*/
#include <testfwk.h>
#ifndef __SDCC_ds390
void t(unsigned int i)
{
i;
}
/* Try to get lower 16 bits allocated to register x on stm8 */
{type} f( {type} p)
{
register {type} v = p;
if(v == 0x0000ffff)
t((unsigned int)v);
else if(v == 0x00010000)
t((unsigned int)v + 1);
else if(v == 0xffff0001)
t((unsigned int)v + 42);
else
return(v);
return(v);
}
#ifndef __SDCC_pdk14 // Lack of memory
/* Try to get lower 16 bits allocated to register y on stm8*/
{type} g({type} p)
{
register {type} v = p;
if(v == 0x0000ffff)
t((unsigned int)(v >> 16));
else if(v == 0x00010000)
t((unsigned int)(v >> 16) + 1);
else if(v == 0xffff0001)
t((unsigned int)(v >> 16) + 42);
else
return(v);
return(v >> 16);
}
/* Try to get lower 8 bits allocated to register a on stm8*/
{type} h( {type} p)
{
register {type} v = p;
if(v == 0x0000ffff)
v |= 0x55;
else if(v == 0x00010000)
v &= 0x55;
else if(v == 0xffff0001)
v |= 0xaa;
else
return(v);
return(v);
}
#endif
#endif
void testBug(void)
{
#ifndef __SDCC_ds390
ASSERT(f(0x55aa55aa) == 0x55aa55aa);
ASSERT(f(0x0000ffff) == 0x0000ffff);
#ifndef __SDCC_pdk14 // Lack of memory
ASSERT(f(0xffff0001) == 0xffff0001);
ASSERT(g(0x55aa55aa) == 0x55aa55aa);
ASSERT(g(0x0000ffff) == 0x00000000);
ASSERT(g(0xffff0001) == 0x0000ffff);
ASSERT(h(0x55aa55aa) == 0x55aa55aa);
ASSERT(h(0x0000ffff) == 0x0000ffff);
ASSERT(h(0xffff0001) == 0xffff00ab);
#endif
#endif
}
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