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annotate gcc/testsuite/gcc.dg/recip_sqrt_mult_5.c @ 131:84e7813d76e9

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gcc-8.2
author mir3636
date Thu, 25 Oct 2018 07:37:49 +0900
parents
children 1830386684a0
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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131
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1 /* { dg-do compile } */
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2 /* { dg-options "-Ofast -fdump-tree-recip" } */
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3
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4 /* We want to do the recip_sqrt transformations here there is already
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5 a multiplication on the main path. */
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6
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7 double res, res2, tmp;
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8 void
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9 foo (double a, double b, int c, int d)
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10 {
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11 tmp = 1.0 / __builtin_sqrt (a);
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12 res = tmp * tmp;
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13
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14 if (d)
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15 res2 = a * tmp;
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16 }
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17
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18 /* { dg-final { scan-tree-dump "Optimizing reciprocal sqrt multiplications" "recip" } } */
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19 /* { dg-final { scan-tree-dump "Replacing squaring multiplication" "recip" } } */
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20 /* { dg-final { scan-tree-dump "Replacing original division" "recip" } } */