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// RUN: %clang_cc1 -verify=expected -Warray-bounds-pointer-arithmetic %s
// RUN: %clang_cc1 -verify=expected -Warray-bounds-pointer-arithmetic %s -fstrict-flex-arrays=0
// RUN: %clang_cc1 -verify=expected,strict -Warray-bounds-pointer-arithmetic %s -fstrict-flex-arrays=2
// RUN: %clang_cc1 -verify=expected,strict -Warray-bounds-pointer-arithmetic %s -fstrict-flex-arrays=3
// Test case from PR10615
struct ext2_super_block{
unsigned char s_uuid[8]; // expected-note {{declared here}}
int ignored; // Prevents "s_uuid" from being treated as a flexible array
// member.
};
void* ext2_statfs (struct ext2_super_block *es,int a) {
return (void *)es->s_uuid + sizeof(int); // no-warning
}
void* broken (struct ext2_super_block *es,int a) {
return (void *)es->s_uuid + 9; // expected-warning {{the pointer incremented by 9 refers past the end of the array (that has type 'unsigned char[8]')}}
}
// Test case reduced from PR11594
struct S {
int n;
};
void pr11594(struct S *s) {
int a[10];
int *p = a - s->n;
}
// This resulted in an assertion failure because of the typedef instead of an
// explicit constant array type.
struct RDar11387038 {};
typedef struct RDar11387038 RDar11387038Array[1];
struct RDar11387038_Table {
RDar11387038Array z; // strict-note {{array 'z' declared here}}
};
typedef struct RDar11387038_Table *TPtr;
typedef TPtr *TabHandle;
struct RDar11387038_B {
TabHandle x;
};
typedef struct RDar11387038_B RDar11387038_B;
void radar11387038(void) {
RDar11387038_B *pRDar11387038_B;
struct RDar11387038 *y = &(*pRDar11387038_B->x)->z[4]; // strict-warning {{array index 4 is past the end of the array (that has type 'struct RDar11387038[1]')}}
}
void pr51682(void) {
int arr[1];
switch (0) {
case 0:
break;
case 1:
asm goto("" ::"r"(arr[42] >> 1)::failed);
break;
}
failed:;
}
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