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42
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1 #include<stdio.h>
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2 #define dprint(f, args...) \
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3 printf("in %s env=%p: "f, __FUNCTION__, __builtin_frame_address(1), ## args)
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4
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5 void
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6 callee(int a, int b, int c, int d)
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7 {
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8 int r;
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9 dprint("a=%d,b=%d,c=%d,d=%d\n", a,b,c,d);
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10 r = a+b+c+d;
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11 printf("r = %d\n", r);
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12 return;
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13 }
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14
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15 void
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16 caller1(int a, int b, int c, int d)
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17 {
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18 int x,y,z,w;
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19 x=a, y=b;
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20 z=c, w=d;
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21
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22 callee(x,y,z,w);
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23 return;
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24 }
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25
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26 void
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27 caller2(int a, int b, int c, int d)
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28 {
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29 int x,y,z,w;
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30 x=a, y=b;
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31 z=c, w=d;
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32
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33 callee(y,z,w,x);
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34 return;
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35 }
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36
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37 void
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38 caller3(int a, int b, int c, int d)
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39 {
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40 callee(b,c,d,a);
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41 return;
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42 }
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43
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44 void
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45 caller4(int a, int b, int c, int d)
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46 {
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47 callee(a+b,b+c,c+d,d+a);
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48 return;
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49 }
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50
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51 void
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52 caller5(int a, int b, int c, int d)
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53 {
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54 int x,y,z,w;
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55 x = a+b;
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56 y = b+c;
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57 z = c+d;
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58 w = d+a;
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59
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60 callee(x,y,z,w);
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61 return;
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62 }
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63
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64 int
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65 main (int argc, char **argv)
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66 {
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67 int r;
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68 caller(11,22,33,44);
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69 //r = caller(11,22,33,44, 55,66,77,88);
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70 }
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71
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