clang/test/Sema/attr-aligned.c

   1 // RUN: %clang_cc1 -triple i386-apple-darwin9 -fsyntax-only -verify %s
   2
   3 int x __attribute__((aligned(3))); // expected-error {{requested alignment is not a power of 2}}
   4 int y __attribute__((aligned(1ull << 33))); // expected-error {{requested alignment must be 4294967296 bytes or smaller}}
   5 int y __attribute__((aligned(1ull << 32)));
   6
   7 // PR26444
   8 int y __attribute__((aligned(1 << 29)));
   9 int y __attribute__((aligned(1 << 28)));
  10
  11 // PR3254
  12 short g0[3] __attribute__((aligned));
  13 short g0_chk[__alignof__(g0) == 16 ? 1 : -1];
  14
  15 // <rdar://problem/6840045>
  16 typedef char ueber_aligned_char __attribute__((aligned(8)));
  17
  18 struct struct_with_ueber_char {
  19   ueber_aligned_char c;
  20 };
  21
  22 char a = 0;
  23
  24 char a0[__alignof__(ueber_aligned_char) == 8? 1 : -1] = { 0 };
  25 char a1[__alignof__(struct struct_with_ueber_char) == 8? 1 : -1] = { 0 };
  26 char a2[__alignof__(a) == 1? : -1] = { 0 };
  27 char a3[sizeof(a) == 1? : -1] = { 0 };
  28
  29 typedef long long __attribute__((aligned(1))) underaligned_longlong;
  30 char a4[__alignof__(underaligned_longlong) == 1 ?: -1] = {0};
  31
  32 typedef long long __attribute__((aligned(1))) underaligned_complex_longlong;
  33 char a5[__alignof__(underaligned_complex_longlong) == 1 ?: -1] = {0};
  34
  35 // rdar://problem/8335865
  36 int b __attribute__((aligned(2)));
  37 char b1[__alignof__(b) == 2 ?: -1] = {0};
  38
  39 struct C { int member __attribute__((aligned(2))); } c;
  40 char c1[__alignof__(c) == 4 ?: -1] = {0};
  41 char c2[__alignof__(c.member) == 4 ?: -1] = {0};
  42
  43 struct D { int member __attribute__((aligned(2))) __attribute__((packed)); } d;
  44 char d1[__alignof__(d) == 2 ?: -1] = {0};
  45 char d2[__alignof__(d.member) == 2 ?: -1] = {0};
  46
  47 struct E { int member __attribute__((aligned(2))); } __attribute__((packed));
  48 struct E e;
  49 char e1[__alignof__(e) == 2 ?: -1] = {0};
  50 char e2[__alignof__(e.member) == 2 ?: -1] = {0};
  51
  52 typedef struct { char c[16]; } S;
  53 typedef S overaligned_struct __attribute__((aligned(16)));
  54 typedef overaligned_struct array_with_overaligned_struct[11];
  55 typedef char array_with_align_attr[11] __attribute__((aligned(16)));
  56
  57 char f0[__alignof__(array_with_overaligned_struct) == 16 ? 1 : -1] = { 0 };
  58 char f1[__alignof__(array_with_align_attr) == 16 ? 1 : -1] = { 0 };
  59 array_with_overaligned_struct F2;
  60 char f2[__alignof__(F2) == 16 ? 1 : -1] = { 0 };
  61 array_with_align_attr F3;
  62 char f3[__alignof__(F3) == 16 ? 1 : -1] = { 0 };