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// RUN: %clang_cc1 -triple x86_64-windows-msvc -fsyntax-only -verify -Wpadded %s
// RUN: %clang_cc1 -triple x86_64-linux-gnu -fsyntax-only -verify -Wpadded %s
struct __attribute__((ms_struct)) BitfieldStruct { // expected-warning {{padding size of 'BitfieldStruct' with 3 bytes to alignment boundary}}
char c : 1;
int : 0; // expected-warning {{padding struct 'BitfieldStruct' with 31 bits to align anonymous bit-field}}
char i;
};
struct __attribute__((ms_struct)) SevenBitfieldStruct { // expected-warning {{padding size of 'SevenBitfieldStruct' with 3 bytes to alignment boundary}}
char c : 7;
int : 0; // expected-warning {{padding struct 'SevenBitfieldStruct' with 25 bits to align anonymous bit-field}}
char i;
};
struct __attribute__((ms_struct)) SameUnitSizeBitfield {
char c : 7;
char : 1; // Same unit size attributes fall in the same unit + they fill the unit -> no padding
char i;
};
struct __attribute__((ms_struct)) DifferentUnitSizeBitfield { // expected-warning {{padding size of 'DifferentUnitSizeBitfield' with 3 bytes to alignment boundary}}
char c : 7;
int : 1; // expected-warning {{padding struct 'DifferentUnitSizeBitfield' with 25 bits to align anonymous bit-field}}
char i; // expected-warning {{padding struct 'DifferentUnitSizeBitfield' with 31 bits to align 'i'}}
};
struct __attribute__((ms_struct)) BitfieldBigPadding { // expected-warning {{padding size of 'BitfieldBigPadding' with 63 bits to alignment boundary}}
long long x;
char a : 1;
long long b : 1; // expected-warning {{padding struct 'BitfieldBigPadding' with 63 bits to align 'b'}}
};
struct __attribute__((ms_struct)) SameUnitSizeMultiple { // expected-warning {{padding size of 'SameUnitSizeMultiple' with 2 bits to alignment boundary}}
char c : 1;
char cc : 2;
char ccc : 3;
};
int main() {
BitfieldStruct b;
SevenBitfieldStruct s;
SameUnitSizeBitfield su;
DifferentUnitSizeBitfield du;
BitfieldBigPadding bbp;
SameUnitSizeMultiple susm;
}
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