On Sun, May 30, 2021 at 11:35 PM apinski--- via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > From: Andrew Pinski <apin...@marvell.com> > > The problem here is we don't have an assignment type any more > for zero-length structs as they were removed during gimplifcation. > This adds a special case where the assignment var does not exist > and the return decl is zero-length. > > OK? Tested on aarch64-linux-gnu with no regressions. > > Thanks, > Andrew Pinski > > gcc/ChangeLog: > * tree-tailcall.c (zero_sized_decl): New function. > (find_tail_calls): Handle zero sized return decls. > > gcc/testsuite/ChangeLog: > > * gcc.dg/tree-ssa/tailcall-10.c: New test. > * gcc.dg/tree-ssa/tailcall-11.c: New test. > * gcc.dg/tree-ssa/tailcall-12.c: New test. > * gcc.dg/tree-ssa/tailcall-13.c: New test. > * gcc.dg/tree-ssa/tailrecursion-8.c: New test.
Please mention PR 95481 in the commit log. Thanks. H.J.
