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annotate gcc/testsuite/gcc.dg/tree-ssa/ssa-pre-8.c @ 158:494b0b89df80 default tip

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author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Mon, 25 May 2020 18:13:55 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fno-tree-dominator-opts -fdump-tree-fre1-stats" } */
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3 struct s {
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4 int *n;
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5 };
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6
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7 int
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8 foo (__SIZE_TYPE__ i, struct s *array)
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9 {
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10 int *p = array[i].n;
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11 if (p)
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12 {
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13 int *q = array[i].n;
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14 if (p != q)
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15 return 1;
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16 }
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17 return 0;
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18 }
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19 /* We should eliminate two address calculations, and one load. */
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20 /* We also elimiate the PHI node feeding the return because the case
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21 returning 1 is unreachable. */
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22 /* We used to eliminate a cast but that was before POINTER_PLUS_EXPR
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23 was added. */
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24 /* { dg-final { scan-tree-dump-times "Eliminated: 4" 1 "fre1"} } */