1/* Origin: trampoline-1.c Waldek Hebisch <hebisch@math.uni.wroc.pl> */ 2/* Ported to test -Wtrampolines Magnus Granberg <zorry@gentoo.org> */ 3 4/* { dg-do compile } */ 5/* { dg-require-effective-target trampolines } */ 6/* { dg-options "-O2 -Wtrampolines" } */ 7 8#ifndef NO_TRAMPOLINES 9 10/* This used to fail on various versions of Solaris 2 because the 11 trampoline couldn't be made executable. */ 12 13extern void abort(void); 14extern double fabs(double); 15 16void foo (void) 17{ 18 const int correct[1100] = {1, 0, -2, 0, 1, 0, 1, -1, -10, -30, -67}; 19 int i; 20 21 double x1 (void) {return 1; } 22 double x2 (void) {return -1;} 23 double x3 (void) {return -1;} 24 double x4 (void) {return 1; } 25 double x5 (void) {return 0; } 26 27 typedef double pfun(void); 28 29 double a (int k, pfun x1, pfun x2, pfun x3, pfun x4, pfun x5) 30 { 31 double b (void) /* { dg-warning "trampoline generated for nested function 'b'" } */ 32 { 33 k = k - 1; 34 return a (k, b, x1, x2, x3, x4 ); 35 } 36 37 if (k <= 0) 38 return x4 () + x5 (); 39 else 40 return b (); 41 } 42 43 for (i=0; i<=10; i++) 44 { 45 if (fabs(a( i, x1, x2, x3, x4, x5 ) - correct [i]) > 0.1) 46 abort(); 47 } 48} 49#endif 50 51int main (void) 52{ 53#ifndef NO_TRAMPOLINES 54 foo (); 55#endif 56 return 0; 57} 58