1/* PR rtl-optimization/48721 */ 2/* { dg-do compile } */ 3/* { dg-options "-O -foptimize-sibling-calls -fsched2-use-superblocks -fschedule-insns2 -mtune=core2" } */ 4 5extern unsigned char a[]; 6extern int b[], d[], e[], f[], g[], *h[], m[], *n[], o[]; 7extern char c[]; 8 9struct S 10{ 11 unsigned char s1; 12 int s2, s3, s4, s5, s6, s7, s8; 13}; 14 15__attribute__((noinline, noclone)) int 16foo (int x) 17{ 18 return 0; 19} 20 21int 22bar (int x, struct S *y) 23{ 24 int z; 25 switch (x) 26 { 27 case 1: 28 case 2: 29 { 30 int t2, t4, t5, t6, t7, t8; 31 z = o[y->s8 * 6]; 32 t8 = *n[m[x] * 5]; 33 t4 = *h[y->s7]; 34 t7 = z; 35 z = g[f[x] + y->s6]; 36 t6 = e[y->s5]; 37 t5 = d[c[x] + y->s3 * 17]; 38 if (z) 39 t2 = b[z]; 40 if (a[z] != y->s1) 41 return foo (x); 42 y->s8 = t8; 43 y->s4 = t4; 44 y->s7 = t7; 45 y->s6 = t6; 46 y->s5 = t5; 47 y->s2 = t2; 48 } 49 } 50 return 0; 51} 52