Bug 15015 – Win64: interop with C/C++ fails if function return value is a struct of size 8

Currently versioned out in the dmd test suite: // from cabi1.d struct Foo5 { int i, j; } extern (C) Foo5 ctest5(); void main() { Foo5 f5 = ctest5(); assert(f5.i == 0x12345678); assert(f5.j == 0x21436587); } // from cabi2.cpp struct Foo5 { int i, j; }; struct Foo5 ctest5() { struct Foo5 f; f.i = 0x12345678; f.j = 0x21436587; return f; } /// compile with x64 cl: cl /c cabi2.cpp dmd -m64 cabi1.cpp cabi2.obj ./cabi1 raises assertion failure.

Commit pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/0b3c6ec1a1b9f19cd998f4571d55cb9ff1798cd3 Merge pull request #5039 from rainers/issue_15015 fix Issue 15015 - Win64: interop with C/C++ fails if function return value is a struct of size 8

Commit pushed to stable at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/0b3c6ec1a1b9f19cd998f4571d55cb9ff1798cd3 Merge pull request #5039 from rainers/issue_15015