Viewing file:  pr66187-1.c (1.68 KB) -rw-r--r--
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/* PR tree-optimization/66187 */
/* { dg-do run } */
/* { dg-options "-O2 -fno-wrapv" } */
__attribute__((noinline, noclone)) int
f0 (unsigned char x, unsigned char y)
{
return (x + y) & 0x2ff;
}
__attribute__((noinline, noclone)) int
f1 (unsigned char x, unsigned char y)
{
return (x - y) & 0x2ff;
}
__attribute__((noinline, noclone)) int
f2 (signed char x, signed char y)
{
return (x + y) & -4;
}
__attribute__((noinline, noclone)) int
f3 (signed char x, signed char y)
{
return (x + y) & 0xf8;
}
__attribute__((noinline, noclone)) int
f4 (signed char x, signed char y)
{
return (x + y) & 0x78;
}
__attribute__((noinline, noclone)) int
f5 (unsigned char x, unsigned char y)
{
int a = x;
int b = y;
int c = a + b;
return c & 0x2ff;
}
__attribute__((noinline, noclone)) int
f6 (unsigned char x, unsigned char y)
{
int a = x;
int b = y;
int c = a - b;
return c & 0x2ff;
}
__attribute__((noinline, noclone)) int
f7 (signed char x, signed char y)
{
int a = x;
int b = y;
int c = a + b;
return c & -4;
}
__attribute__((noinline, noclone)) int
f8 (signed char x, signed char y)
{
int a = x;
int b = y;
int c = a + b;
return c & 0xf8;
}
__attribute__((noinline, noclone)) int
f9 (signed char x, signed char y)
{
int a = x;
int b = y;
int c = a + b;
return c & 0x78;
}
int
main ()
{
if (__SCHAR_MAX__ != 127 || sizeof (int) != 4)
return 0;
if (f0 (0xff, 0xff) != 0xfe
|| f1 (0, 1) != 0x2ff
|| f2 (-2, 1) != -4
|| f3 (-2, 1) != 0xf8
|| f4 (-2, 1) != 0x78
|| f5 (0xff, 0xff) != 0xfe
|| f6 (0, 1) != 0x2ff
|| f7 (-2, 1) != -4
|| f8 (-2, 1) != 0xf8
|| f9 (-2, 1) != 0x78)
__builtin_abort ();
return 0;
}
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