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111
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1 /* Testing save/restore of floating point caller-save registers, on ia64
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2 this resulted in bad code. Not all targets will use caller-save regs. */
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3
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4 /* { dg-do run } */
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5 /* { dg-options "-O2" } */
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6 /* { dg-options "-O2 -minline-float-divide-max-throughput" { target ia64-*-* } } */
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7
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8 /* Testing save/restore of floating point caller-save registers on ia64. */
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9
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10 extern void abort (void);
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11
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12 double foo(double a, double b, double c)
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13 {
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14 return (a+b+c);
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15 }
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16
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17 int
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18 main ()
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19 {
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20 double f1, f2, f3, f4, f5, f6, f7, f8, f9,f10;
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21 double f11,f12,f13,f14,f15,f16,f17,f18,f19,f20;
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22 double f21,f22,f23,f24,f25,f26,f27,f28,f29,f30;
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23 double x;
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24 int i,j,k;
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25
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26 f1 = 0.1; f2 = 0.2; f3 = 0.3; f4 = 0.4; f5 = 0.5;
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27 f6 = 0.6; f7 = 0.7; f8 = 0.8; f9 = 0.9; f10 = 1.0;
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28 f11 = 1.1; f12 = 1.2; f13 = 1.3; f14 = 1.4; f15 = 1.5;
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29 f16 = 1.6; f17 = 1.7; f18 = 1.8; f19 = 1.9; f20 = 2.0;
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30 f21 = 2.1; f22 = 2.2; f23 = 2.3; f24 = 2.4; f25 = 2.5;
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31 f26 = 2.6; f27 = 2.7; f28 = 2.8; f29 = 2.9; f30 = 3.0;
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32
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33 i = (int) foo(1.0,1.0,1.0);
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34 while (i > 0) {
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35 f1 = f2 / f3 * f30;
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36 f2 = f3 / f4 * f30;
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37 f3 = f4 / f5 * f30;
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38 f4 = f5 / f6 * f30;
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39 f5 = f6 / f7 * f30;
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40 f6 = f7 / f8 * f30;
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41 f7 = f8 / f9 * f30;
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42 f8 = f9 / f10 * f30;
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43 f9 = f10 / f11 * f30;
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44 f10 = f11 / f12 * f30;
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45 f11 = f12 / f13 * f30;
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46 f12 = f13 / f14 * f25;
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47 f13 = f14 / f15 * f30;
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48 f14 = f15 / f16 * f30;
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49 f15 = f16 / f17 * f30;
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50 f16 = f17 / f18 * f30;
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51 f17 = f18 / f19 * f30;
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52 f18 = f19 / f20 * f30;
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53 f19 = f20 / f21 * f30;
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54 f20 = f21 / f22 * f20;
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55 f21 = f22 / f23 * f30;
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56 f22 = f23 / f24 * f30;
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57 f23 = f24 / f25 * f30;
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58 f24 = f25 / f26 * f30;
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59 f25 = f26 / f27 * f30;
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60 f26 = f27 / f28 * f30;
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61 f27 = f28 / f29 * f30;
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62 f28 = f29 / f30 * f30;
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63 f29 = f30 / f1 * f30;
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64 f30 = f1 / f2 * f30;
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65 x = foo(f1,f2,f3);
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66 i = i - 1;
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67 }
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68 x = (f1+f2+f3+f4+f5+f6+f7+f8+f9+f10) *
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69 (f11+f12+f13+f14+f15+f16+f17+f18+f19+f20) *
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70 (f21+f22+f23+f24+f25+f26+f27+f28+f29+f30);
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71
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72 /* Exact value is not needed, on IA64 it is massively off. */
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73 if (x < 19503.0 || x > 19504.0) abort();
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74 return 0;
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75 }
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