xref: /minix3/external/bsd/llvm/dist/clang/test/Sema/arm-layout.c (revision f4a2713ac843a11c696ec80c0a5e3e5d80b4d338)
1*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple armv7-unknown-unknown -target-abi apcs-gnu %s -verify
2*f4a2713aSLionel Sambuc // RUN: %clang_cc1 -triple armv7-unknown-unknown -target-abi aapcs %s -verify
3*f4a2713aSLionel Sambuc // expected-no-diagnostics
4*f4a2713aSLionel Sambuc 
5*f4a2713aSLionel Sambuc #define check(name, cond) int _##name##_check[(cond) ? 1 : -1]
6*f4a2713aSLionel Sambuc 
7*f4a2713aSLionel Sambuc struct s0 { char field0; double field1; };
8*f4a2713aSLionel Sambuc #ifdef __ARM_EABI__
9*f4a2713aSLionel Sambuc check(s0_size, sizeof(struct s0) == 16);
10*f4a2713aSLionel Sambuc #else
11*f4a2713aSLionel Sambuc check(s0_size, sizeof(struct s0) == 12);
12*f4a2713aSLionel Sambuc #endif
13*f4a2713aSLionel Sambuc 
14*f4a2713aSLionel Sambuc struct s1 { char field0; long double field1; };
15*f4a2713aSLionel Sambuc #ifdef __ARM_EABI__
16*f4a2713aSLionel Sambuc check(s1_size, sizeof(struct s1) == 16);
17*f4a2713aSLionel Sambuc #else
18*f4a2713aSLionel Sambuc check(s1_size, sizeof(struct s1) == 12);
19*f4a2713aSLionel Sambuc #endif
20*f4a2713aSLionel Sambuc 
21*f4a2713aSLionel Sambuc struct s2 {
22*f4a2713aSLionel Sambuc   short field0;
23*f4a2713aSLionel Sambuc   int field1 : 24;
24*f4a2713aSLionel Sambuc   char field2;
25*f4a2713aSLionel Sambuc };
26*f4a2713aSLionel Sambuc #ifdef __ARM_EABI__
27*f4a2713aSLionel Sambuc check(s2_size, sizeof(struct s2) == 8);
28*f4a2713aSLionel Sambuc check(s2_offset_0, __builtin_offsetof(struct s2, field0) == 0);
29*f4a2713aSLionel Sambuc check(s2_offset_1, __builtin_offsetof(struct s2, field2) == 7);
30*f4a2713aSLionel Sambuc #else
31*f4a2713aSLionel Sambuc check(s2_size, sizeof(struct s2) == 6);
32*f4a2713aSLionel Sambuc check(s2_offset_0, __builtin_offsetof(struct s2, field0) == 0);
33*f4a2713aSLionel Sambuc check(s2_offset_1, __builtin_offsetof(struct s2, field2) == 5);
34*f4a2713aSLionel Sambuc #endif
35*f4a2713aSLionel Sambuc 
36*f4a2713aSLionel Sambuc struct s3 {
37*f4a2713aSLionel Sambuc   short field0;
38*f4a2713aSLionel Sambuc   int field1 : 24 __attribute__((aligned(4)));
39*f4a2713aSLionel Sambuc   char field2;
40*f4a2713aSLionel Sambuc };
41*f4a2713aSLionel Sambuc check(s3_size, sizeof(struct s3) == 8);
42*f4a2713aSLionel Sambuc check(s3_offset_0, __builtin_offsetof(struct s3, field0) == 0);
43*f4a2713aSLionel Sambuc check(s3_offset_1, __builtin_offsetof(struct s3, field2) == 7);
44*f4a2713aSLionel Sambuc 
45*f4a2713aSLionel Sambuc struct s4 {
46*f4a2713aSLionel Sambuc   int field0 : 4;
47*f4a2713aSLionel Sambuc };
48*f4a2713aSLionel Sambuc #ifdef __ARM_EABI__
49*f4a2713aSLionel Sambuc check(s4_size, sizeof(struct s4) == 4);
50*f4a2713aSLionel Sambuc check(s4_align, __alignof(struct s4) == 4);
51*f4a2713aSLionel Sambuc #else
52*f4a2713aSLionel Sambuc check(s4_size, sizeof(struct s4) == 1);
53*f4a2713aSLionel Sambuc check(s4_align, __alignof(struct s4) == 1);
54*f4a2713aSLionel Sambuc #endif
55