commit d6bbca7b78745915d98bb1324d79de6a1e6dc801
author Tobias Burnus <tobias@codesourcery.com> Tue Nov 22 17:54:34 2022 +0100
committer Tobias Burnus <tobias@codesourcery.com> Tue Nov 22 17:57:35 2022 +0100
tree 8cd4b4359517e7b6df2e5f2c56da7a11a29a9cc5
parent ac5054144bd2248e948842937448eb5f4ce36bfd

gcn: Add __builtin_gcn_{get_stack_limit,first_call_this_thread_p}

The new builtins have been added for newlib to reduce dependency on
compiler-internal implementation choices of GCC in newlibs' getreent.c.

gcc/ChangeLog:

	* config/gcn/gcn-builtins.def (FIRST_CALL_THIS_THREAD_P,
	GET_STACK_LIMIT): Add new builtins.
	* config/gcn/gcn.cc (gcn_expand_builtin_1): Expand them.
	* config/gcn/gcn.md (prologue_use): Add "register_operand" as
	arg to match_operand.
	(prologue_use_di): New; DI insn_and_split variant of the former.

Co-Authored-By: Andrew Stubbs <ams@codesourcery.com>