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111
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1 /* { dg-require-effective-target vect_long } */
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2 /* { dg-additional-options "-fno-tree-scev-cprop" } */
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3
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4 #include "tree-vect.h"
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5
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6 /* Statement in SLP vectorization used outside the loop.
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7 NOTE: SCEV disabled to ensure the live operation is not removed before
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8 vectorization. */
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9 #define LIVELOOP(RET) \
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10 __attribute__ ((noinline)) long \
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11 liveloop##RET (int n, long *x, long *y) \
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12 { \
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13 long n0, n1, n2, n3; \
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14 int j; \
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15 for (j = 0; j < n; ++j) \
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16 { \
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17 n0 = x[(j*4)]; \
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18 n1 = x[(j*4)+1]; \
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19 n2 = x[(j*4)+2]; \
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20 n3 = x[(j*4)+3]; \
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21 y[(j*4)] = n0 + 1; \
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22 y[(j*4)+1] = n1 + 2; \
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23 y[(j*4)+2] = n2 + 3; \
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24 y[(j*4)+3] = n3 + 4; \
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25 } \
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26 return n##RET; \
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27 }
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28
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29 LIVELOOP (0)
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30 LIVELOOP (1)
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31 LIVELOOP (2)
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32 LIVELOOP (3)
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33 typedef long (*FP)(int n, long *x, long *y);
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34 const FP llf[]= {&liveloop0, &liveloop1, &liveloop2, &liveloop3};
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35
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36 #define MAX 153
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37
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38 int
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39 main (void)
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40 {
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41 long a[MAX*4];
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42 long b[MAX*4];
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43 int i;
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44
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45 check_vect ();
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46
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47 for (i=0; i<MAX*4; i++)
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48 {
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49 __asm__ volatile ("");
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50 a[i] = i;
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51 }
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52
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53 for (i=0; i<4; i++)
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54 {
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55 __asm__ volatile ("");
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56
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57 int ret = llf[i] (MAX, a, b);
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58
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59 if (ret != (MAX * 4) - 4 + i)
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60 abort ();
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61
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62 for (i=0; i<MAX*4; i++)
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63 {
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64 __asm__ volatile ("");
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65 if (b[i] != i + (i%4) + 1)
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66 abort ();
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67 }
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68 }
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69 }
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70
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71 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 4 "vect" } } */
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72 /* { dg-final { scan-tree-dump-times "vectorizing stmts using SLP" 4 "vect" } } */
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73 /* { dg-final { scan-tree-dump-times "vec_stmt_relevant_p: stmt live but not relevant" 4 "vect" } } */
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