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annotate gcc/testsuite/gcc.dg/pr54087.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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111
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1 /* PR54087. Verify __atomic_sub (val) uses __atomic_add (-val) if there is no
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2 atomic_aub. */
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3 /* { dg-do compile { target { i?86-*-* x86_64-*-* } } } */
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4 /* { dg-require-effective-target sync_int_long } */
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5 /* { dg-final { scan-assembler-times "xadd" 2 } } */
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6
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7
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8 int a;
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9
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10 int f1(int p)
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11 {
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12 return __atomic_sub_fetch(&a, p, __ATOMIC_SEQ_CST) == 0;
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13 }
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14
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15 int f2(int p)
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16 {
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17 return __atomic_fetch_sub(&a, p, __ATOMIC_SEQ_CST) - p == 0;
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18 }