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annotate gcc/testsuite/gcc.dg/recip_sqrt_mult_4.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 1830386684a0
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 "-Ofast -fdump-tree-recip" } */
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3 /* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */
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4
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5 /* The main path doesn't have any multiplications.
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6 Avoid introducing them in the recip pass. */
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7
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8 double res, res2, tmp;
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9 void
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10 foo (double a, double b, int c, int d)
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11 {
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12 tmp = 1.0 / __builtin_sqrt (a);
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13 if (c)
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14 res = tmp * tmp;
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15
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16 if (d)
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17 res2 = a * tmp;
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18 }
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19
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20 /* { dg-final { scan-tree-dump-not "Optimizing reciprocal sqrt multiplications" "recip" } } */
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21 /* { dg-final { scan-tree-dump-not "Replacing squaring multiplication" "recip" } } */
84e7813d76e9 gcc-8.2
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22 /* { dg-final { scan-tree-dump-not "Replacing original division" "recip" } } */