binutils-gdb/gdb/testsuite/gdb.base/branches.c

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/* Tests for single stepping through various branch conditions */
int noscramble(int a)
{
return a ;
}
int echo(int a)
{ return noscramble(a) ; }
int equaltest(int a,int b)
{ int retval ;
if (a == b)
retval = noscramble(1) ;
else retval = noscramble(0) ;
return retval ;
}
int neqtest(int a , int b)
{ int retval ;
if (a != b)
retval = echo(1) ;
else retval = echo(2) ;
return retval ;
}
int zerotest(int a )
{ int retval ;
a = echo(a) ;
if (a ==0)
retval = echo(1) ;
else
retval = echo(0) ;
retval = echo(retval) ;
return retval ;
}
int zerotest2(int a)
{
return (a==0) ;
}
int nonzerotest(int a)
{
int retval ;
if (a != 0)
retval = echo(0) ;
else retval = echo(1) ;
return retval ;
}
int whiletest(int a)
{
while (a > 0)
{
a-- ;
}
return 0 ;
}
int whiletest2(int a)
{
while (a > 0)
{
a = noscramble(a) ;
a-- ;
}
return a ;
}
int decr(int x) { return x - 1 ; }
int while3(int a)
{
int b = a ;
while (a == b)
{
a = echo(a) ;
b = decr(b) ;
}
return a ;
}
void done (int x) { }
int main()
{
int a,b,c,d ;
done(1) ;
a = echo(123456) ;
b = echo(123456) ;
c = echo(56789) ;
d = echo(0) ;
#if 1
equaltest(a,b) ;
done(7) ;
equaltest(a,c) ;
done(8) ;
whiletest(3) ; /* worked */
done(3) ;
while3(3) ;
done(6) ;
#endif
neqtest(a,b) ;
neqtest(a,b) ;
neqtest(a,c) ;
zerotest(d) ;
zerotest(a) ;
done(5) ;
nonzerotest(d) ;
done(4) ;
nonzerotest(a) ;
done(111) ;
return 1 ;
}