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111
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1 /* Test complex arithmetic with signed zeros. Pure complex
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2 multiplication with 1.0 + 0.0i. */
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3 /* { dg-do run } */
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4 /* { dg-options "-std=gnu99" { target c } } */
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5
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6 #include "complex-sign.h"
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7
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8 #define CHECK_MUL_INT(TYPE, COPY, ZERO, ZEROI, ONE, S1, S2, SR, SI) \
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9 do { \
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10 _Complex TYPE a1, b1, c1; \
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11 volatile _Complex TYPE a2, b2, c2; \
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12 a1 = ENCODE(ZERO, ZEROI, S1, S2); \
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13 CHECK_RES (a1, COPY, S1, S2); \
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14 b1 = ONE + ZEROI; \
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15 c1 = a1 * b1; \
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16 CHECK_RES (c1, COPY, SR, SI); \
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17 c1 = a1 * (ONE + ZEROI); \
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18 CHECK_RES (c1, COPY, SR, SI); \
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19 a2 = ENCODE(ZERO, ZEROI, S1, S2); \
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20 CHECK_RES (a2, COPY, S1, S2); \
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21 b2 = ONE + ZEROI; \
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22 c2 = a2 * b2; \
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23 CHECK_RES (c2, COPY, SR, SI); \
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24 c2 = a2 * (ONE + ZEROI); \
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25 CHECK_RES (c2, COPY, SR, SI); \
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26 } while (0)
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27
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28 #define CHECK_MUL(TYPE, COPY, ZERO, ZEROI, ONE) \
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29 do { \
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30 CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, +, +, +, +); \
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31 CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, +, -, +, +); \
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32 CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, -, +, -, +); \
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33 CHECK_MUL_INT (TYPE, COPY, ZERO, ZEROI, ONE, -, -, +, -); \
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34 } while (0)
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35
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36 void
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37 check_mul_float (void)
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38 {
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39 CHECK_MUL (float, __builtin_copysignf, 0.0f, 0.0if, 1.0f);
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40 }
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41
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42 void
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43 check_mul_double (void)
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44 {
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45 CHECK_MUL (double, __builtin_copysign, 0.0, 0.0i, 1.0);
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46 }
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47
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48 void
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49 check_mul_long_double (void)
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50 {
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51 CHECK_MUL (long double, __builtin_copysignl, 0.0l, 0.0il, 1.0l);
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52 }
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53
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54 int
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55 main (void)
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56 {
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57 check_mul_float ();
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58 check_mul_double ();
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59 check_mul_long_double ();
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60 exit (0);
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61 }
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