clang/test/Sema/attr-aligned.c

   1 // RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -triple i586-intel-elfiamcu -fsyntax-only -verify %s
   3
   4 int x __attribute__((aligned(3))); // expected-error {{requested alignment is not a power of 2}}
   5 int y __attribute__((aligned(1ull << 33))); // expected-error {{requested alignment must be 4294967296 bytes or smaller}}
   6 int y __attribute__((aligned(1ull << 32)));
   7
   8 // PR26444
   9 int y __attribute__((aligned(1 << 29)));
  10 int y __attribute__((aligned(1 << 28)));
  11
  12 // PR3254
  13 short g0[3] __attribute__((aligned));
  14 #ifdef __iamcu
  15 short g0_chk[__alignof__(g0) == 4 ? 1 : -1];
  16 #else
  17 short g0_chk[__alignof__(g0) == 16 ? 1 : -1];
  18
  19 // GH50534
  20 int z __attribute__((aligned((__int128_t)0x1234567890abcde0ULL << 64))); // expected-error {{requested alignment must be 4294967296 bytes or smaller}}
  21 #endif
  22
  23 typedef char ueber_aligned_char __attribute__((aligned(8)));
  24
  25 struct struct_with_ueber_char {
  26   ueber_aligned_char c;
  27 };
  28
  29 char a = 0;
  30
  31 char a0[__alignof__(ueber_aligned_char) == 8? 1 : -1] = { 0 };
  32 char a1[__alignof__(struct struct_with_ueber_char) == 8? 1 : -1] = { 0 };
  33 char a2[__alignof__(a) == 1? : -1] = { 0 };
  34 char a3[sizeof(a) == 1? : -1] = { 0 };
  35
  36 typedef long long __attribute__((aligned(1))) underaligned_longlong;
  37 char a4[__alignof__(underaligned_longlong) == 1 ?: -1] = {0};
  38
  39 typedef long long __attribute__((aligned(1))) underaligned_complex_longlong;
  40 char a5[__alignof__(underaligned_complex_longlong) == 1 ?: -1] = {0};
  41
  42 int b __attribute__((aligned(2)));
  43 char b1[__alignof__(b) == 2 ?: -1] = {0};
  44
  45 struct C { int member __attribute__((aligned(2))); } c;
  46 char c1[__alignof__(c) == 4 ?: -1] = {0};
  47 char c2[__alignof__(c.member) == 4 ?: -1] = {0};
  48
  49 struct D { int member __attribute__((aligned(2))) __attribute__((packed)); } d;
  50 char d1[__alignof__(d) == 2 ?: -1] = {0};
  51 char d2[__alignof__(d.member) == 2 ?: -1] = {0};
  52
  53 struct E { int member __attribute__((aligned(2))); } __attribute__((packed));
  54 struct E e;
  55 char e1[__alignof__(e) == 2 ?: -1] = {0};
  56 char e2[__alignof__(e.member) == 2 ?: -1] = {0};
  57
  58 typedef struct { char c[16]; } S;
  59 typedef S overaligned_struct __attribute__((aligned(16)));
  60 typedef overaligned_struct array_with_overaligned_struct[11];
  61 typedef char array_with_align_attr[11] __attribute__((aligned(16)));
  62
  63 char f0[__alignof__(array_with_overaligned_struct) == 16 ? 1 : -1] = { 0 };
  64 char f1[__alignof__(array_with_align_attr) == 16 ? 1 : -1] = { 0 };
  65 array_with_overaligned_struct F2;
  66 char f2[__alignof__(F2) == 16 ? 1 : -1] = { 0 };
  67 array_with_align_attr F3;
  68 char f3[__alignof__(F3) == 16 ? 1 : -1] = { 0 };