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      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 () {
      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() {
     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 }
     24