calls.c (ECF_ALWAYS_RETURN): New constant.

	* calls.c (ECF_ALWAYS_RETURN): New constant.
	(emit_call_1): Add REG_ALWAYS_RETURN note if needed.
	(expand_call): Use LCF_ALWAYS_RETURN for __bb_fork_func.
	(emit_library_call_value_1): Handle LCT_ALWAYS_RETRUN.
	* flow.c (need_fake_edge_p): Handle REG_ALWAYS_RETURN.
	* rtl.c (reg_note_name): New name.
	* rtl.h (enum reg_note): Add REG_ALWAYS_RETURN.

From-SVN: r44722

1 files changed, 1 insertions, 0 deletions

diff --git a/gcc/flow.c b/gcc/flow.c
index e32114c..61928ed 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -2517,6 +2517,7 @@ need_fake_edge_p (insn)
   if ((GET_CODE (insn) == CALL_INSN
        && !SIBLING_CALL_P (insn)
        && !find_reg_note (insn, REG_NORETURN, NULL)
+       && !find_reg_note (insn, REG_ALWAYS_RETURN, NULL)
        && !CONST_OR_PURE_CALL_P (insn)))
     return true;