Viewing file:  isr-03-fixed.c (2.41 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-std=gnu99 -fno-lto -fno-toplevel-reorder" } */
// No LTO for now due to PR lto/68384.
#ifdef __AVR_TINY__
unsigned char reg2;
#else
register unsigned char reg2 __asm("r2");
#endif
#include "../isr-test.h"
#define SET_REG(reg,val) \
do { \
reg = (val); \
__asm __volatile__("" : "+r" (reg)); \
} while (0) \
#define GET_REG(reg) \
({ \
__asm __volatile__("" : "+r" (reg)); \
reg; \
})
/**********************************************************************/
ISR (1, signal)
{
reg2++;
}
MK_RUN_ISR (1, 1ul << 2)
void test1 (void)
{
SET_REG (reg2, 0);
run_isr_1();
if (GET_REG (reg2) != 1)
__builtin_abort();
}
/**********************************************************************/
__attribute__((noinline,noclone))
void inc_r2 (void)
{
reg2++;
}
ISR (2, signal)
{
inc_r2 ();
}
MK_RUN_ISR (2, 1ul << 2)
void test2 (void)
{
run_isr_2();
if (GET_REG (reg2) != 2)
__builtin_abort();
}
/**********************************************************************/
ISR (3, signal)
{
#ifndef __AVR_TINY__
register char r4 __asm ("r4");
__asm __volatile ("inc %0" : "+r" (r4));
__asm __volatile ("inc r5" ::: "r5");
#endif
}
MK_RUN_ISR (3, 0)
void test3 (void)
{
run_isr_3();
}
/**********************************************************************/
#define CLOBB(reg) \
do { \
__asm __volatile__ ("inc " #reg ::: #reg); \
} while (0)
ISR (4, signal)
{
char volatile v;
v = 1;
#ifndef __AVR_TINY__
CLOBB (r3);
CLOBB (r4);
CLOBB (r5);
CLOBB (r6);
CLOBB (r7);
CLOBB (r8);
CLOBB (r9);
CLOBB (r10);
CLOBB (r11);
CLOBB (r12);
CLOBB (r13);
CLOBB (r14);
CLOBB (r15);
CLOBB (r16);
CLOBB (r17);
#endif
CLOBB (r18);
CLOBB (r19);
CLOBB (r20);
CLOBB (r21);
CLOBB (r22);
CLOBB (r23);
CLOBB (r24);
CLOBB (r25);
CLOBB (r26);
CLOBB (r27);
CLOBB (r30);
CLOBB (r31);
}
MK_RUN_ISR (4, 0)
void test4 (void)
{
run_isr_4();
}
/**********************************************************************/
int main (void)
{
test1();
test2();
test3();
test4();
return 0;
}
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