clang/test/CodeGen/ms_struct-long-double.c

   1 // RUN: %clang_cc1 -emit-llvm-only -triple i686-windows-gnu -fdump-record-layouts %s | FileCheck %s
   2 // RUN: %clang_cc1 -emit-llvm-only -triple i686-linux -fdump-record-layouts -Wno-incompatible-ms-struct %s | FileCheck %s
   3 // RUN: not %clang_cc1 -emit-llvm-only -triple i686-linux -fdump-record-layouts %s 2>&1 | FileCheck %s -check-prefix=ERROR
   4
   5 struct ldb_struct {
   6   char c;
   7   long double ldb;
   8 } __attribute__((__ms_struct__));
   9
  10 struct ldb_struct a;
  11
  12 // CHECK:             0 | struct ldb_struct
  13 // CHECK-NEXT:        0 |   char c
  14 // CHECK-NEXT:        4 |   long double ldb
  15 // CHECK-NEXT:          | [sizeof=16, align=4]
  16
  17 // ERROR: error: ms_struct may not produce Microsoft-compatible layouts with fundamental data types with sizes that aren't a power of two