text: // RUN: %clang_cc1 -triple x86_64-pc-linux-gnu -fsyntax-only -Wno-unused -verify=addr64,expected %s
  // RUN: %clang_cc1 -triple i386-pc-linux-gnu   -fsyntax-only -Wno-unused -verify=addr32,expected %s
  // RUN: %clang_cc1 -triple avr-pc-linux-gnu    -fsyntax-only -Wno-unused -verify=addr16,expected %s
  
  struct S {
    long long a;
    char b;
    long long c;
    short d;
  };
  
  struct S s[]; // expected-warning {{tentative array definition}} expected-note {{declared here}} addr16-note {{declared here}}
  
  void f1() {
    ++s[3].a;
    ++s[7073650413200313099].b;
    // addr16-warning@-1 {{array index 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
    // addr32-warning@-2 {{array index 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 192-bit (24-byte) elements (max possible 178956970 elements)}}
    // addr64-warning@-3 {{array index 7073650413200313099 refers past the last possible element for an array in 64-bit address space containing 256-bit (32-byte) elements (max possible 576460752303423488 elements)}}
    ++s[7073650].c;
    // addr16-warning@-1 {{array index 7073650 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
  }
  
  long long ll[]; // expected-warning {{tentative array definition}} expected-note {{declared here}} addr16-note {{declared here}} addr32-note {{declared here}}
  
  void f2() {
    ++ll[3];
    ++ll[2705843009213693952];
    // addr16-warning@-1 {{array index 2705843009213693952 refers past the last possible element for an array in 16-bit address space containing 64-bit (8-byte) elements (max possible 8192 elements)}}
    // addr32-warning@-2 {{array index 2705843009213693952 refers past the last possible element for an array in 32-bit address space containing 64-bit (8-byte) elements (max possible 536870912 elements)}}
    // addr64-warning@-3 {{array index 2705843009213693952 refers past the last possible element for an array in 64-bit address space containing 64-bit (8-byte) elements (max possible 2305843009213693952 elements)}}
    ++ll[847073650];
    // addr16-warning@-1 {{array index 847073650 refers past the last possible element for an array in 16-bit address space containing 64-bit (8-byte) elements (max possible 8192 elements)}}
    // addr32-warning@-2 {{array index 847073650 refers past the last possible element for an array in 32-bit address space containing 64-bit (8-byte) elements (max possible 536870912 elements)}}
  }
  
  void f3(struct S p[]) { // expected-note {{declared here}} addr16-note {{declared here}}
    ++p[3].a;
    ++p[7073650413200313099].b;
    // addr16-warning@-1 {{array index 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
    // addr32-warning@-2 {{array index 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 192-bit (24-byte) elements (max possible 178956970 elements)}}
    // addr64-warning@-3 {{array index 7073650413200313099 refers past the last possible element for an array in 64-bit address space containing 256-bit (32-byte) elements (max possible 576460752303423488 elements)}}
    ++p[7073650].c;
    // addr16-warning@-1 {{array index 7073650 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
  }
  
  void f4(struct S *p) { // expected-note {{declared here}} addr16-note {{declared here}}
    p += 3;
    p += 7073650413200313099;
    // addr16-warning@-1 {{the pointer incremented by 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
    // addr32-warning@-2 {{the pointer incremented by 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 192-bit (24-byte) elements (max possible 178956970 elements)}}
    // addr64-warning@-3 {{the pointer incremented by 7073650413200313099 refers past the last possible element for an array in 64-bit address space containing 256-bit (32-byte) elements (max possible 576460752303423488 elements)}}
    p += 7073650;
    // addr16-warning@-1 {{the pointer incremented by 7073650 refers past the last possible element for an array in 16-bit address space containing 160-bit (20-byte) elements (max possible 3276 elements)}}
  }
  
  struct BQ {
    struct S bigblock[3276];
  };
  
  struct BQ bq[]; // expected-warning {{tentative array definition}} addr16-note {{declared here}}
  
  void f5() {
    ++bq[0].bigblock[0].a;
    ++bq[1].bigblock[0].a;
    // addr16-warning@-1 {{array index 1 refers past the last possible element for an array in 16-bit address space containing 524160-bit (65520-byte) elements (max possible 1 element)}}
  }
  
  void f6() {
    int ints[] = {1, 3, 5, 7, 8, 6, 4, 5, 9};
    int const n_ints = sizeof(ints) / sizeof(int);
    unsigned long long const N = 3;
  
    int *middle = &ints[0] + n_ints / 2;
    // Should NOT produce a warning.
    *(middle + 5 - N) = 22;
  }
  
  void pr50741() {
    (void *)0 + 0xdead000000000000UL;
    // no array-bounds warning, and no crash
  }
  