cif-code.def (NEVER_CALL): New code.

	* cif-code.def (NEVER_CALL): New code.
	* ipa-inline.c (want_inline_small_function_p): Fix formatting issues.
	Set the failure to CIF_NEVER_CALL if the IPA count is zero.

From-SVN: r273804

gcc/ChangeLog

+2019-07-25  Eric Botcazou  <ebotcazou@adacore.com>
+
+	* cif-code.def (NEVER_CALL): New code.
+	* ipa-inline.c (want_inline_small_function_p): Fix formatting issues.
+	Set the failure to CIF_NEVER_CALL if the IPA count is zero.
+
 2019-07-25  Wilco Dijkstra  <wdijkstr@arm.com>
 
 	* config/arm/thumb2.md (thumb2_movsi_insn): Fix load/store low reg.

gcc/cif-code.def

@@ -83,6 +83,10 @@ DEFCIFCODE(RECURSIVE_INLINING, CIF_FINAL_NORMAL,
 DEFCIFCODE(UNLIKELY_CALL, CIF_FINAL_NORMAL,
 	   N_("call is unlikely and code size would grow"))
 
+/* Call is considered never executed.  */
+DEFCIFCODE(NEVER_CALL, CIF_FINAL_NORMAL,
+	   N_("call is considered never executed and code size would grow"))
+
 /* Function is not declared as inline.  */
 DEFCIFCODE(NOT_DECLARED_INLINED, CIF_FINAL_NORMAL,
 	   N_("function not declared inline and code size would grow"))

gcc/ipa-inline.c

@@ -851,6 +851,9 @@ want_inline_small_function_p (struct cgraph_edge *e, bool report)
 	       && (growth >= MAX_INLINE_INSNS_SINGLE
 		   || growth_likely_positive (callee, growth)))
 	{
+	  if (e->count.ipa () == profile_count::zero ())
+	    e->inline_failed = CIF_NEVER_CALL;
+	  else
 	    e->inline_failed = CIF_UNLIKELY_CALL;
 	  want_inline = false;
 	}