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// RUN: %clang_cc1 -triple=x86_64-none-none -Wpadded -Wpacked -verify %s -emit-llvm-only
struct S1 {
char c;
short s; // expected-warning {{padding struct 'S1' with 1 byte to align 's'}}
long l; // expected-warning {{padding struct 'S1' with 4 bytes to align 'l'}}
};
struct S2 { // expected-warning {{padding size of 'S2' with 3 bytes to alignment boundary}}
int i;
char c;
};
struct S3 {
char c;
int i;
} __attribute__((packed));
struct S4 {
int i; // expected-warning {{packed attribute is unnecessary for 'i'}}
char c;
} __attribute__((packed));
struct S5 {
char c;
union {
char c;
int i;
} u; // expected-warning {{padding struct 'S5' with 3 bytes to align 'u'}}
};
struct S6 { // expected-warning {{padding size of 'S6' with 30 bits to alignment boundary}}
int i : 2;
};
struct S7 { // expected-warning {{padding size of 'S7' with 7 bytes to alignment boundary}}
char c;
virtual void m();
};
struct B {
char c;
};
struct S8 : B {
int i; // expected-warning {{padding struct 'S8' with 3 bytes to align 'i'}}
};
struct S9 { // expected-warning {{packed attribute is unnecessary for 'S9'}}
int x; // expected-warning {{packed attribute is unnecessary for 'x'}}
int y; // expected-warning {{packed attribute is unnecessary for 'y'}}
} __attribute__((packed));
struct S10 { // expected-warning {{packed attribute is unnecessary for 'S10'}}
int x; // expected-warning {{packed attribute is unnecessary for 'x'}}
char a,b,c,d;
} __attribute__((packed));
struct S11 {
bool x;
char a,b,c,d;
} __attribute__((packed));
struct S12 {
bool b : 1;
char c; // expected-warning {{padding struct 'S12' with 7 bits to align 'c'}}
};
struct S13 { // expected-warning {{padding size of 'S13' with 6 bits to alignment boundary}}
char c;
bool b : 10; // expected-warning {{size of bit-field 'b' (10 bits) exceeds the size of its type}}
};
// The warnings are emitted when the layout of the structs is computed, so we have to use them.
void f(S1*, S2*, S3*, S4*, S5*, S6*, S7*, S8*, S9*, S10*, S11*, S12*, S13*) { }
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