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annotate gcc/testsuite/gcc.dg/pr91720.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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145
1830386684a0 gcc-9.2.0
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1 /* PR rtl-optimization/91720 */
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2 /* { dg-do run } */
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3 /* { dg-options "-Og -fno-forward-propagate -frerun-cse-after-loop -fno-tree-fre" } */
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4
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5 unsigned a, b;
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6
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7 int
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8 main ()
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9 {
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10 #if __CHAR_BIT__ == 8
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11 unsigned c = 1;
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12 unsigned long long d = 0;
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13 unsigned char e = 0;
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14 e = __builtin_sub_overflow (d, e, &a) ? 0 : 0x80;
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15 e = e << 7 | e >> c;
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16 __builtin_memmove (&d, &a, 2);
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17 b = e;
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18 if (b != 0x40)
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19 __builtin_abort ();
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20 #endif
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21 return 0;
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22 }