Viewing file:  subs2.c (2.97 KB) -rw-r--r--
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/* { dg-do run } */
/* { dg-options "-O2 --save-temps -fno-inline" } */
extern void abort (void);
int
subs_si_test1 (int a, int b, int c)
{
int d = a - b;
/* { dg-final { scan-assembler-not "subs\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+" } } */
/* { dg-final { scan-assembler "sub\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
int
subs_si_test2 (int a, int b, int c)
{
int d = a - 0xfff;
/* { dg-final { scan-assembler-not "subs\tw\[0-9\]+, w\[0-9\]+, #4095" } } */
/* { dg-final { scan-assembler "sub\tw\[0-9\]+, w\[0-9\]+, #4095" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
int
subs_si_test3 (int a, int b, int c)
{
int d = a - (b << 3);
/* { dg-final { scan-assembler-not "subs\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+, lsl 3" } } */
/* { dg-final { scan-assembler "sub\tw\[0-9\]+, w\[0-9\]+, w\[0-9\]+, lsl 3" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
typedef long long s64;
s64
subs_di_test1 (s64 a, s64 b, s64 c)
{
s64 d = a - b;
/* { dg-final { scan-assembler-not "subs\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+" } } */
/* { dg-final { scan-assembler "sub\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
s64
subs_di_test2 (s64 a, s64 b, s64 c)
{
s64 d = a - 0x1000ll;
/* { dg-final { scan-assembler-not "subs\tx\[0-9\]+, x\[0-9\]+, #4096" } } */
/* { dg-final { scan-assembler "sub\tx\[0-9\]+, x\[0-9\]+, #4096" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
s64
subs_di_test3 (s64 a, s64 b, s64 c)
{
s64 d = a - (b << 3);
/* { dg-final { scan-assembler-not "subs\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+, lsl 3" } } */
/* { dg-final { scan-assembler "sub\tx\[0-9\]+, x\[0-9\]+, x\[0-9\]+, lsl 3" } } */
if (d <= 0)
return a + c;
else
return b + d + c;
}
int main ()
{
int x;
s64 y;
x = subs_si_test1 (29, 4, 5);
if (x != 34)
abort ();
x = subs_si_test1 (5, 2, 20);
if (x != 25)
abort ();
x = subs_si_test2 (29, 4, 5);
if (x != 34)
abort ();
x = subs_si_test2 (1024, 2, 20);
if (x != 1044)
abort ();
x = subs_si_test3 (35, 4, 5);
if (x != 12)
abort ();
x = subs_si_test3 (5, 2, 20);
if (x != 25)
abort ();
y = subs_di_test1 (0x130000029ll,
0x320000004ll,
0x505050505ll);
if (y != 0x63505052e)
abort ();
y = subs_di_test1 (0x5000500050005ll,
0x2111211121112ll,
0x0000000002020ll);
if (y != 0x5000500052025)
abort ();
y = subs_di_test2 (0x130000029ll,
0x320000004ll,
0x505050505ll);
if (y != 0x95504f532)
abort ();
y = subs_di_test2 (0x540004100ll,
0x320000004ll,
0x805050205ll);
if (y != 0x1065053309)
abort ();
y = subs_di_test3 (0x130000029ll,
0x064000008ll,
0x505050505ll);
if (y != 0x63505052e)
abort ();
y = subs_di_test3 (0x130002900ll,
0x088000008ll,
0x505050505ll);
if (y != 0x635052e05)
abort ();
return 0;
}
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