1/* { dg-do compile } */ 2/* { dg-options "-O3 -fno-optimize-sibling-calls" } */ 3 4extern int use_data (void *p_01, void *p_02, void *p_03, void *p_04, void *p_05, 5 void *p_06, void *p_07, void *p_08, void *p_09, void *p_10, 6 void *p_11, void *p_12, void *p_13, void *p_14, void *p_15, 7 void *p_16, void *p_17, void *p_18, void *p_19, void *p_20, 8 void *p_21, void *p_22, void *p_23, void *p_24, void *p_25, 9 void *p_26, void *p_27, void *p_28, void *p_29, 10 void *p_30); 11 12extern int idx (int i, int j, int n); 13 14struct stuff 15{ 16 int decision; 17 int *a, *b, *c; 18 int res; 19}; 20 21 22#define some_large_stuff(stuff, n) { \ 23 int i, j, k; \ 24 for (i = 0; i < n; i++) \ 25 for (j = 0; j < n; j++) \ 26 { \ 27 int v = stuff->c[idx(i, j, n)]; \ 28 for (k = 0; k < n; k++) \ 29 v += stuff->a[idx(i, k, n)] * stuff->b[idx(k,j,n)]; \ 30 stuff->c[idx(i, j, n)] = v; \ 31 } \ 32} 33 34#define recursion if (iter > 0) \ 35 foo (stuff, iter - 1, (void *) -1, p_01, p_02, p_03, p_04, p_05, p_06, \ 36 p_07, p_08, p_09, p_10, p_11, p_12, p_13, p_14, p_15, p_16, p_17, \ 37 p_18, p_19, p_20, p_21, p_22, p_23, p_24, p_25, p_26, p_27, p_28, p_29); \ 38 else \ 39 foo (stuff, iter, p_01, p_02, p_03, p_04, p_05, p_06, p_07, p_08, p_09, \ 40 p_10, p_11, p_12, p_13, p_14, p_15, p_16, p_17, p_18, p_19, p_20, \ 41 p_21,p_22, p_23, p_24, p_25, p_26, p_27, p_28, p_29, p_30) 42 43void 44foo (struct stuff *stuff, 45 int iter, 46 void *p_01, void *p_02, void *p_03, void *p_04, void *p_05, 47 void *p_06, void *p_07, void *p_08, void *p_09, void *p_10, 48 void *p_11, void *p_12, void *p_13, void *p_14, void *p_15, 49 void *p_16, void *p_17, void *p_18, void *p_19, void *p_20, 50 void *p_21, void *p_22, void *p_23, void *p_24, void *p_25, 51 void *p_26, void *p_27, void *p_28, void *p_29, void *p_30) 52{ 53 switch (stuff->decision) 54 { 55 case 0: 56 some_large_stuff (stuff, 83); 57 stuff->res = 58 use_data (p_01, p_02, p_03, p_04, p_05, p_06, p_07, p_08, p_09, p_10, 59 p_11, p_12, p_13, p_14, p_15, p_16, p_17, p_18, p_19, p_20, 60 p_21, p_22, p_23, p_24, p_25, p_26, p_27, p_28, p_29, p_30); 61 recursion; 62 break; 63 64 case 1: 65 some_large_stuff (stuff, 25); 66 stuff->res = 67 use_data (p_11, p_02, p_03, p_04, p_05, p_06, p_07, p_08, p_09, p_10, 68 p_21, p_12, p_13, p_14, p_15, p_16, p_17, p_18, p_19, p_20, 69 p_01, p_22, p_23, p_24, p_25, p_26, p_27, p_28, p_29, p_30); 70 recursion; 71 break; 72 73 case 3: 74 some_large_stuff (stuff, 139); 75 stuff->res = 76 use_data (p_01, p_12, p_03, p_04, p_05, p_06, p_07, p_08, p_09, p_10, 77 p_11, p_22, p_13, p_14, p_15, p_16, p_17, p_18, p_19, p_20, 78 p_21, p_02, p_23, p_24, p_25, p_26, p_27, p_28, p_29, p_30); 79 recursion; 80 break; 81 82 case 4: 83 some_large_stuff (stuff, 32); 84 stuff->res = 85 use_data (p_01, p_02, p_13, p_04, p_05, p_06, p_07, p_08, p_09, p_10, 86 p_11, p_12, p_23, p_14, p_15, p_16, p_17, p_18, p_19, p_20, 87 p_21, p_22, p_03, p_24, p_25, p_26, p_27, p_28, p_29, p_30); 88 recursion; 89 break; 90 91 case 5: 92 some_large_stuff (stuff, 205); 93 stuff->res = 94 use_data (p_01, p_02, p_03, p_04, p_15, p_06, p_07, p_08, p_09, p_10, 95 p_11, p_12, p_13, p_14, p_25, p_16, p_17, p_18, p_19, p_20, 96 p_21, p_22, p_23, p_24, p_05, p_26, p_27, p_28, p_29, p_30); 97 recursion; 98 break; 99 100 case 6: 101 some_large_stuff (stuff, 64); 102 stuff->res = 103 use_data (p_01, p_02, p_03, p_04, p_05, p_16, p_07, p_08, p_09, p_10, 104 p_11, p_12, p_13, p_14, p_15, p_26, p_17, p_18, p_19, p_20, 105 p_21, p_22, p_23, p_24, p_25, p_06, p_27, p_28, p_29, p_30); 106 recursion; 107 break; 108 } 109} 110 111#define NULL (void *)0 112 113void 114bar (struct stuff *stuff, int iter) 115{ 116 foo (stuff, iter, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 117 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, 118 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL); 119} 120