clang/test/SemaCXX/attr-aligned.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
   2 // expected-no-diagnostics
   3
   4 typedef struct S1 { char c; } S1 __attribute__((aligned(8)));
   5 static_assert(alignof(S1) == 8, "attribute ignored");
   6 static_assert(alignof(struct S1) == 1, "attribute applied to original type");
   7
   8 typedef struct __attribute__((aligned(8))) S2 { char c; } AS;
   9 static_assert(alignof(S2) == 8, "attribute not propagated");
  10 static_assert(alignof(struct S2) == 8, "attribute ignored");
  11
  12 typedef struct __attribute__((aligned(4))) S3 {
  13   char c;
  14 } S3 __attribute__((aligned(8)));
  15 static_assert(alignof(S3) == 8, "attribute ignored");
  16 static_assert(alignof(struct S3) == 4, "attribute clobbered");