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comparison gcc/testsuite/gcc.dg/pr83424.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
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111:04ced10e8804 131:84e7813d76e9
1 /* PR rtl-optimization/83424 */
2 /* { dg-do run { target int128 } } */
3 /* { dg-options "-O -fno-tree-ccp -fno-tree-coalesce-vars" } */
4
5 typedef unsigned char u8;
6 typedef unsigned int u32;
7 typedef unsigned __int128 u128;
8
9 u32 a, c;
10 u8 b;
11
12 static u128 __attribute__ ((noinline, noclone))
13 foo (u128 p)
14 {
15 u8 x = ~b;
16 p &= c;
17 x *= -p;
18 x &= a == 0;
19 x >>= 1;
20 return p + x;
21 }
22
23 int
24 main (void)
25 {
26 u128 x = foo (0);
27 if (x != 0)
28 __builtin_abort ();
29 return 0;
30 }