Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/Wtrampolines.c @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
parents | 04ced10e8804 |
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/* Origin: trampoline-1.c Waldek Hebisch <hebisch@math.uni.wroc.pl> */ /* Ported to test -Wtrampolines Magnus Granberg <zorry@gentoo.org> */ /* { dg-do compile } */ /* { dg-require-effective-target trampolines } */ /* { dg-options "-O2 -Wtrampolines" } */ /* This used to fail on various versions of Solaris 2 because the trampoline couldn't be made executable. */ extern void abort(void); extern double fabs(double); void foo (void) { const int correct[1100] = {1, 0, -2, 0, 1, 0, 1, -1, -10, -30, -67}; int i; double x1 (void) {return 1; } double x2 (void) {return -1;} double x3 (void) {return -1;} double x4 (void) {return 1; } double x5 (void) {return 0; } typedef double pfun(void); double a (int k, pfun x1, pfun x2, pfun x3, pfun x4, pfun x5) { double b (void) /* { dg-warning "trampoline generated for nested function 'b'" "standard descriptors" { xfail { { ia64-*-* *-*-aix* } || { powerpc*-*-* && lp64 } } } } */ { k = k - 1; return a (k, b, x1, x2, x3, x4 ); } if (k <= 0) return x4 () + x5 (); else return b (); } for (i=0; i<=10; i++) { if (fabs(a( i, x1, x2, x3, x4, x5 ) - correct [i]) > 0.1) abort(); } } int main (void) { foo (); return 0; }