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comparison gcc/testsuite/gcc.c-torture/execute/pr89634.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
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131:84e7813d76e9 145:1830386684a0
1 /* PR rtl-optimization/89634 */
2
3 static unsigned long *
4 foo (unsigned long *x)
5 {
6 return x + (1 + *x);
7 }
8
9 __attribute__((noipa)) unsigned long
10 bar (unsigned long *x)
11 {
12 unsigned long c, d = 1, e, *f, g, h = 0, i;
13 for (e = *x - 1; e > 0; e--)
14 {
15 f = foo (x + 1);
16 for (i = 1; i < e; i++)
17 f = foo (f);
18 c = *f;
19 if (c == 2)
20 d *= 2;
21 else
22 {
23 i = (c - 1) / 2 - 1;
24 g = (2 * i + 1) * (d + 1) + (2 * d + 1);
25 if (g > h)
26 h = g;
27 d *= c;
28 }
29 }
30 return h;
31 }
32
33 int
34 main ()
35 {
36 unsigned long a[18] = { 4, 2, -200, 200, 2, -400, 400, 3, -600, 0, 600, 5, -100, -66, 0, 66, 100, __LONG_MAX__ / 8 + 1 };
37 if (bar (a) != 17)
38 __builtin_abort ();
39 return 0;
40 }