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111
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1 /* x2 and x3 will be strength-reduced based on the same statement
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2 but with different variables as the stride. Note that they will
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3 be strength-reduced by introducing an initializer 4*s which is
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4 cheaper than 5*s; similar for 4*c and 5*c. */
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5
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6 /* { dg-do compile } */
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7 /* { dg-options "-O3 -fdump-tree-optimized" } */
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8
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9 int
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10 f (int s, int c)
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11 {
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12 int a2, a3, x1, x2, x3, x;
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13
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14 x1 = c + s;
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15 a2 = 5 * s;
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16 x2 = c + a2;
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17 a3 = 5 * c;
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18 x3 = s + a3;
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19 x = x1 + x2 + x3;
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20 return x;
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21 }
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22
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23 /* { dg-final { scan-tree-dump-times " \\* 4" 2 "optimized" } } */
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24 /* { dg-final { scan-tree-dump-times " \\* 5" 0 "optimized" } } */
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