https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100882
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Iain Buclaw <ibuc...@gcc.gnu.org>: https://gcc.gnu.org/g:b81bb0a6025588ac752cd78cce74ecf0d9ab4494 commit r9-9569-gb81bb0a6025588ac752cd78cce74ecf0d9ab4494 Author: Iain Buclaw <ibuc...@gdcproject.org> Date: Fri Jun 4 19:38:26 2021 +0200 d: Fix ICE in gimplify_var_or_parm_decl, at gimplify.c:2755 (PR100882) Constructor calls for temporaries were reusing the TARGET_EXPR_SLOT of a TARGET_EXPR for an assignment, which later got passed to `build_assign', which stripped away the outer TARGET_EXPR, leaving a reference to a lone temporary with no declaration. This stripping away of the TARGET_EXPR also discarded any cleanups that may have been assigned to the expression as well. So now the reuse of TARGET_EXPR_SLOT has been removed, and `build_assign' now constructs assignments inside the TARGET_EXPR_INITIAL slot. This has also been extended to `return_expr', to deal with possibility of a TARGET_EXPR being returned. gcc/d/ChangeLog: PR d/100882 * d-codegen.cc (build_assign): Construct initializations inside TARGET_EXPR_INITIAL. (compound_expr): Remove intermediate expressions that have no side-effects. (return_expr): Construct returns inside TARGET_EXPR_INITIAL. * expr.cc (ExprVisitor::visit (CallExp *)): Remove useless assignment to TARGET_EXPR_SLOT. gcc/testsuite/ChangeLog: PR d/100882 * gdc.dg/pr100882a.d: New test. * gdc.dg/pr100882b.d: New test. * gdc.dg/pr100882c.d: New test. * gdc.dg/pr100882d.d: New test. (cherry picked from commit e8761d4c21b5f4cc1c5612be9bf952a07c8a2238)
