builtin1.c

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· C语言 代码 · 共 18 行

// { dg-do run  }
// { dg-options "" }
// GROUPS passed builtins
// Apparently not in g++ bug snapshot (was originally sent to bug-gcc)
// Message-Id: <[e-mail]>
// Date: Tue, 7 Dec 93 10:23 EST
// From: [e-mail] (Neal Becker)
// Subject: builtin_alloca on hpux (gcc-2.5.6)
// We have to avoid using -ansi, which results in a call to alloca instead of
//  the use of __builtin_alloca, and thus ends up being unresolved.

extern "C" int printf (const char *, ...);

void* junk() {
  return __builtin_alloca(10);
}
main() { printf ("PASS\n");}