clang/test/CodeGen/varargs.c

   1 // RUN: %clang_cc1 -triple i386-unknown-unknown -emit-llvm -o - %s | FileCheck %s
   2
   3 // PR6433 - Don't crash on va_arg(typedef).
   4 typedef double gdouble;
   5 void focus_changed_cb (void) {
   6     __builtin_va_list pa;
   7     double mfloat;
   8     mfloat = __builtin_va_arg((pa), gdouble);
   9 }
  10
  11 void vararg(int, ...);
  12 void function_as_vararg(void) {
  13   // CHECK: define {{.*}}function_as_vararg
  14   // CHECK-NOT: llvm.trap
  15   vararg(0, focus_changed_cb);
  16 }
  17
  18 void vla(int n, ...)
  19 {
  20   __builtin_va_list ap;
  21   void *p;
  22   p = __builtin_va_arg(ap, typeof (int (*)[++n])); // CHECK: add nsw i32 {{.*}}, 1
  23 }