19 lines
709 B
C
19 lines
709 B
C
/* { dg-do compile } */
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/* { dg-options "-O2 -fdump-tree-ccp1" } */
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typedef double v2df __attribute__ ((vector_size (2 * sizeof (double))));
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void do_div (v2df *a, v2df *b)
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{
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*a = *b / (v2df) { 2.0, 2.0 };
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}
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/* Since 2.0 has an exact reciprocal, constant folding should multiply *b
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by the reciprocals of the vector elements. As a result there should be
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one vector multiply and zero divides in the optimized code. The fold
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does not take place for generic vectors until the first CCP pass. The
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string " * " occurs 3 times: one multiply and two indirect parameters. */
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/* { dg-final { scan-tree-dump-times " \\\* " 3 "ccp1" } } */
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/* { dg-final { scan-tree-dump-times " / " 0 "ccp1" } } */
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