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/* Wrong method to get number of arg reg will cause argument corruption. */
/* { dg-do run } */
/* { dg-require-effective-target arm_eabi } */
/* { dg-options "-mthumb -O1" } */
extern void abort (void);
int foo (int, int, int, int) __attribute__((noinline));
int
foo (int a, int b, int c, int d)
{
register int m asm ("r8");
m = a;
m += b;
m += c;
m += d;
asm ("" : "=r" (m) : "0" (m));
return m;
}
int
main ()
{
volatile int a = 10;
volatile int b = 20;
volatile int c = 30;
volatile int d = 40;
volatile int sum = 0;
sum = foo (a, b, c, d);
if (sum != 100)
abort ();
return 0;
}
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