22 lines
674 B
C
22 lines
674 B
C
/* { dg-do compile } */
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/* { dg-options "-Ofast -fdump-tree-recip" } */
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/* { dg-additional-options "-fcompare-debug" { target { ! powerpc-ibm-aix* } } } */
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/* We want to do the recip_sqrt transformations here there is already
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a multiplication on the main path. */
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double res, res2, tmp;
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void
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foo (double a, double b, int c, int d)
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{
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tmp = 1.0 / __builtin_sqrt (a);
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res = tmp * tmp;
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if (d)
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res2 = a * tmp;
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}
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/* { dg-final { scan-tree-dump "Optimizing reciprocal sqrt multiplications" "recip" } } */
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/* { dg-final { scan-tree-dump "Replacing squaring multiplication" "recip" } } */
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/* { dg-final { scan-tree-dump "Replacing original division" "recip" } } */
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