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111
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1 /* { dg-do compile } */
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2 /* { dg-require-effective-target double64 } */
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3 /* { dg-options "-O -fdump-tree-forwprop1" } */
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4
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5 #include <stdint.h>
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6
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7 /* All of these optimizations happen for unsupported vector modes as a
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8 consequence of the lowering pass. We need to test with a vector mode
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9 that is supported by default on at least some architectures, or make
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10 the test target specific so we can pass a flag like -mavx. */
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11
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12 typedef double vecf __attribute__ ((vector_size (2 * sizeof (double))));
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13 typedef int64_t veci __attribute__ ((vector_size (2 * sizeof (int64_t))));
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14
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15 void f (double d, vecf* r)
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16 {
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17 vecf x = { -d, 5 };
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18 vecf y = { 1, 4 };
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19 veci m = { 2, 0 };
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20 *r = __builtin_shuffle (x, y, m); // { 1, -d }
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21 }
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22
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23 void g (float d, vecf* r)
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24 {
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25 vecf x = { d, 5 };
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26 vecf y = { 1, 4 };
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27 veci m = { 2, 1 };
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28 *r = __builtin_shuffle (x, y, m); // { 1, 5 }
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29 }
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30
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31 void h (double d, vecf* r)
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32 {
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33 vecf x = { d + 1, 5 };
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34 vecf y = { 1 , 4 };
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35 veci m = { 2 , 0 };
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36 *r = __builtin_shuffle (y, x, m); // { d + 1, 1 }
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37 }
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38
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39 void i (float d, vecf* r)
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40 {
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41 vecf x = { d, 5 };
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42 veci m = { 1, 0 };
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43 *r = __builtin_shuffle (x, m); // { 5, d }
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44 }
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45
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46 void j (vecf* r)
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47 {
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48 vecf y = { 1, 2 };
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49 veci m = { 0, 0 };
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50 *r = __builtin_shuffle (y, m); // { 1, 1 }
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51 }
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52
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53 void k (vecf* r)
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54 {
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55 vecf x = { 3, 4 };
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56 vecf y = { 1, 2 };
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57 veci m = { 3, 0 };
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58 *r = __builtin_shuffle (x, y, m); // { 2, 3 }
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59 }
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60
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61 void l (double d, vecf* r)
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62 {
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63 vecf x = { -d, 5 };
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64 vecf y = { d, 4 };
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65 veci m = { 2, 0 };
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66 *r = __builtin_shuffle (x, y, m); // { d, -d }
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67 }
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68
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69 /* { dg-final { scan-tree-dump-not "VEC_PERM_EXPR" "forwprop1" } } */
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