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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2 -fno-ipa-icf" } */
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3
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4 extern void do_something_usefull();
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5 /* Check that we finish compiling even if instructed to
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6 flatten a cyclic callgraph. Verify we correctly
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7 flatten with another function marked flatten in the
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8 callgraph. */
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9
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10 void __attribute__((flatten)) direct(void)
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11 {
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12 direct();
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13 }
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14
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15
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16 void __attribute__((flatten)) indirect(void);
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17 static void indirect1(void)
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18 {
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19 indirect();
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20 }
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21 void __attribute__((flatten)) indirect(void)
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22 {
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23 indirect1();
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24 }
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25
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26
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27 void __attribute__((flatten)) doubleindirect(void);
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28 static void doubleindirect2(void)
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29 {
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30 doubleindirect();
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31 do_something_usefull ();
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32 }
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33 static void doubleindirect1(void)
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34 {
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35 doubleindirect2();
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36 }
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37 void __attribute__((flatten)) doubleindirect(void)
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38 {
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39 doubleindirect1();
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40 }
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41
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42
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43 static void subcycle1(void);
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44 static void subcycle2(void)
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45 {
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46 subcycle1();
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47 do_something_usefull ();
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48 }
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49 static void subcycle1(void)
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50 {
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51 subcycle2();
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52 }
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53 void __attribute__((flatten)) subcycle(void)
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54 {
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55 subcycle1();
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56 }
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57
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58
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59 static void doublesubcycle1(void);
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60 static void doublesubcycle2(void);
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61 static void doublesubcycle3(void)
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62 {
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63 doublesubcycle1();
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64 do_something_usefull ();
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65 }
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66 static void doublesubcycle2(void)
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67 {
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68 doublesubcycle3();
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69 }
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70 static void doublesubcycle1(void)
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71 {
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72 doublesubcycle2();
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73 }
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74 void __attribute__((flatten)) doublesubcycle(void)
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75 {
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76 doublesubcycle1();
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77 }
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78
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79 /* { dg-final { scan-assembler "cycle\[123\]\[: \t\n\]" } } */
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