https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113758
--- Comment #3 from GCC Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-12 branch has been updated by Iain Buclaw <ibuc...@gcc.gnu.org>: https://gcc.gnu.org/g:e276a94c061861a09dd790d206ec73d90478925e commit r12-10189-ge276a94c061861a09dd790d206ec73d90478925e Author: Iain Buclaw <ibuc...@gdcproject.org> Date: Sun Feb 4 22:04:14 2024 +0100 d: Fix callee destructor call invalidates the live object [PR113758] When generating the argument, check the isCalleeDestroyingArgs hook, and force a TARGET_EXPR to be created if true, so that a reference to the live object isn't passed directly to the function that runs dtors. When instead dealing with caller running destructors, two temporaries were being generated, one explicit temporary generated by the D front-end, and another implicitly by the code generator. This has been reduced to one by setting DECL_VALUE_EXPR on the explicit temporary to bind it to the implicit slot created for the TARGET_EXPR, as that has the shorter lifetime of the two. PR d/113758 gcc/d/ChangeLog: * d-codegen.cc (d_build_call): Force a TARGET_EXPR when callee destorys its arguments. * decl.cc (DeclVisitor::visit (VarDeclaration *)): Set SET_DECL_VALUE_EXPR on the temporary variable to make it a placeholder for the TARGET_EXPR_SLOT. gcc/testsuite/ChangeLog: * gdc.dg/torture/pr113758.d: New test. (cherry picked from commit 3c57b1c12a8e34d50bdf6aaf44146760db6d1b33)
