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annotate gcc/testsuite/gcc.dg/tree-ssa/pr93582-11.c @ 152:2b5abeee2509

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update gcc11
author anatofuz
date Mon, 25 May 2020 07:50:57 +0900
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152
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1 /* PR tree-optimization/93582 */
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2 /* { dg-do compile { target lp64 } } */
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3 /* { dg-options "-O2 -fdump-tree-fre1" } */
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4 /* { dg-final { scan-tree-dump "return 9223372036854775806;" "fre1" } } */
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5
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6 union U { struct A { unsigned long long a : 1, b : 62, c : 1; } a; unsigned long long i; };
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7
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8 unsigned long long
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9 foo (char *p)
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10 {
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11 __builtin_memset (p - 0xfffffffffffffffULL, 0, 0xffffffffffffffeULL);
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12 __builtin_memset (p + 1, 0, 0xffffffffffffffeULL);
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13 union U *q = (union U *) (void *) (p - 4);
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14 q->a.b = -1;
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15 return q->i;
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16 }