llvm-project/clang/test/Sema/bitfield-layout_1.c

203 lines
3.0 KiB
C

// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=i686-apple-darwin9
// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=arm-linux-gnueabihf
// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=aarch64-linux-gnu
// RUN: %clang_cc1 %s -fsyntax-only -verify -triple=x86_64-pc-linux-gnu
// expected-no-diagnostics
#define CHECK_SIZE(name, size) \
extern int name##_1[sizeof(name) == size ? 1 : -1];
struct __attribute__((packed)) {
int a;
int b : 4;
int c : 32;
} s0;
CHECK_SIZE(s0,9)
#pragma pack (1)
struct {
int a;
int b : 4;
int c : 32;
} s1;
CHECK_SIZE(s1,9)
#pragma pack (2)
struct {
int a;
int b : 4;
int c : 32;
} s2;
CHECK_SIZE(s2,10)
#pragma pack (2)
struct __attribute__((packed)) {
int a;
int b : 4;
int c : 32;
} s3;
CHECK_SIZE(s3,10)
#pragma pack (4)
struct __attribute__((packed)) {
int a;
int b : 4;
int c : 32;
} s4;
CHECK_SIZE(s4,12)
#pragma pack (16)
struct {
int a;
int __attribute__((packed)) b : 4;
int __attribute__((packed)) c : 32;
} s41;
CHECK_SIZE(s41,12)
#pragma pack (16)
struct {
int a;
int b : 4;
int c : 32;
} s5;
CHECK_SIZE(s5,12)
#pragma pack (1)
struct __attribute__((aligned(4))) {
int a;
int b : 4;
int c : 32;
} s6;
CHECK_SIZE(s6,12)
#pragma pack (2)
struct {
char a;
int b : 4;
int c : 32;
char s;
} s7;
CHECK_SIZE(s7,8)
#pragma pack (1)
struct {
char a;
int b : 4;
int c : 28;
char s;
} s8;
CHECK_SIZE(s8,6)
#pragma pack (8)
struct {
char a;
int b : 4;
int c : 28;
char s;
} s9;
CHECK_SIZE(s9,8)
#pragma pack (8)
struct {
char a;
char s;
} s10;
CHECK_SIZE(s10,2)
#pragma pack(4)
struct {
char a;
int b : 4;
int c : 28;
char s1;
char s2;
char s3;
} s11;
CHECK_SIZE(s11,8)
#pragma pack(4)
struct {
short s1;
int a1 : 17;
int a2 : 17;
int a3 : 30;
short s2;
} s12;
CHECK_SIZE(s12,12)
#pragma pack(4)
struct {
char c1;
int i1 : 17;
int i2 : 17;
int i3 : 30;
char c2;
} s13;
CHECK_SIZE(s13,12)
#pragma pack(2)
struct {
char a;
int s;
} s14;
CHECK_SIZE(s14,6)
#pragma pack(4)
struct {
char a;
short s;
} s15;
CHECK_SIZE(s15,4)
#pragma pack(2)
struct {
char a;
int b : 4;
int c : 28;
char s1;
char s2;
char s3;
} s16;
CHECK_SIZE(s16,8)
#pragma pack (16)
struct {
int __attribute__((packed)) a;
int __attribute__((packed)) b : 4;
int __attribute__((packed)) c : 32;
} s17;
CHECK_SIZE(s17,12)
#pragma pack (16)
struct {
int __attribute__((aligned(8))) a;
int __attribute__((aligned(8))) b : 4;
int __attribute__((aligned(8))) c : 32;
} s18;
CHECK_SIZE(s18,24)
#pragma pack (16)
struct {
int __attribute__((aligned(1))) a;
int __attribute__((aligned(1))) b : 4;
int __attribute__((aligned(1))) c : 32;
} s19;
CHECK_SIZE(s19,12)
#pragma pack (1)
struct __attribute__((aligned(8))) {
int a;
int b : 4;
int c : 32;
} s20;
CHECK_SIZE(s20,16)
#pragma pack (2)
struct {
int __attribute__((aligned(8))) a;
int __attribute__((aligned(8))) b : 4;
int __attribute__((aligned(8))) c : 32;
} s21;
CHECK_SIZE(s21,10)