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// 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(void) {
++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(void) {
++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(void) {
++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(void) {
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) {
(void *)0 + 0xdead000000000000UL;
// no array-bounds warning, and no crash
}
void func() {
func + 0xdead000000000000UL; // no crash
}
struct {
int _;
char tail[]; // addr16-note {{declared here}} addr32-note {{declared here}}
} fam;
struct {
int _;
char tail[0]; // addr16-note {{declared here}} addr32-note {{declared here}}
} fam0;
struct {
int _;
char tail[1]; // addr16-note {{declared here}} addr32-note {{declared here}}
} fam1;
void fam_ily() {
++fam.tail[7073650413200313099];
// addr16-warning@-1 {{array index 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 8-bit (1-byte) elements (max possible 65536 elements)}}
// addr32-warning@-2 {{array index 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 8-bit (1-byte) elements (max possible 4294967296 elements)}}
// No warning for addr64 because the array index is inbound in that case.
++fam0.tail[7073650413200313099];
// addr16-warning@-1 {{array index 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 8-bit (1-byte) elements (max possible 65536 elements)}}
// addr32-warning@-2 {{array index 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 8-bit (1-byte) elements (max possible 4294967296 elements)}}
// No warning for addr64 because the array index is inbound in that case.
++fam1.tail[7073650413200313099];
// addr16-warning@-1 {{array index 7073650413200313099 refers past the last possible element for an array in 16-bit address space containing 8-bit (1-byte) elements (max possible 65536 elements)}}
// addr32-warning@-2 {{array index 7073650413200313099 refers past the last possible element for an array in 32-bit address space containing 8-bit (1-byte) elements (max possible 4294967296 elements)}}
// No warning for addr64 because the array index is inbound in that case.
}
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