Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/tree-ssa/pr83141.c @ 158:494b0b89df80 default tip
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:13:55 +0900 |
parents | 84e7813d76e9 |
children |
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/* { dg-do run } */ /* { dg-options "-O -fdump-tree-esra-details" } */ volatile short vs; volatile long vl; struct A { short s; long i; long j; }; struct A a, b; void foo () { struct A c; __builtin_memcpy (&c, &b, sizeof (struct A)); __builtin_memcpy (&a, &c, sizeof (struct A)); vs = c.s; vl = c.i; vl = c.j; } int main() { if ((sizeof (short) != 2) || (__builtin_offsetof (struct A, i) < 4)) return 0; __builtin_memset (&b, 0, sizeof (struct A)); b.s = 1; __builtin_memcpy ((char *)&b+2, &b, 2); foo (); __builtin_memcpy (&a, (char *)&a+2, 2); if (a.s != 1) __builtin_abort (); return 0; } /* { dg-final { scan-tree-dump-not "Will attempt to totally scalarize" "esra" } } */