[LLVMbugs] [Bug 18464] New: [-cxx-abi microsoft] size involving pragma pack and declspec(align) is wrong

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Mon Jan 13 15:37:19 PST 2014


http://llvm.org/bugs/show_bug.cgi?id=18464

            Bug ID: 18464
           Summary: [-cxx-abi microsoft] size involving pragma pack and
                    declspec(align) is wrong
           Product: clang
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: LLVM Codegen
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david.majnemer at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

extern "C" int printf(const char *fmt, ...);
struct ClassName0 {
  char ClassName0FieldName0;
};
#pragma pack(push, 1)
struct ClassName1 : public ClassName0 {
  __declspec(align(2)) char ClassName1FieldName5;
};
#pragma pack(pop)
int main() { printf("   sizeof(ClassName1): %Iu\n", sizeof(ClassName1));

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