invoke.texi (max-inline-insns-small): New parameters.

* doc/invoke.texi (max-inline-insns-small): New parameters.
	* ipa-inline.c (want_early_inline_function_p): simplify.
	(want_inline_small_function_p): Fix pasto from previous patch;
	use max-inline-insns-small bound.
	* params.def (max-inline-insns-small): New param.
	* ipa-fnsummary.c (analyze_function_body): Initialize time/size
	variables correctly.

From-SVN: r267603

gcc/ChangeLog

@@ -1,3 +1,13 @@
+2019-01-05  Jan Hubicka  <hubicka@ucw.cz>
+
+	* doc/invoke.texi (max-inline-insns-small): New parameters.
+	* ipa-inline.c (want_early_inline_function_p): simplify.
+	(want_inline_small_function_p): Fix pasto from previous patch;
+	use max-inline-insns-small bound.
+	* params.def (max-inline-insns-small): New param.
+	* ipa-fnsummary.c (analyze_function_body): Initialize time/size
+	variables correctly.
+
 2019-01-05  Jan Hubicka  <hubicka@ucw.cz>
 
 	* doc/invoke.texi: Document max-inline-insns-size,

gcc/doc/invoke.texi

@@ -11007,6 +11007,10 @@ by the compiler are investigated.  To those functions, a different
 (more restrictive) limit compared to functions declared inline can
 be applied.
 
+@item max-inline-insns-small
+This is bound applied to calls which are considered relevant with
+@option{-finline-small-functions}.
+
 @item max-inline-insns-size
 This is bound applied to calls which are optimized for size. Small growth
 may be desirable to anticipate optimization oppurtunities exposed by inlining.

gcc/ipa-fnsummary.c

@@ -1969,9 +1969,9 @@ fp_expression_p (gimple *stmt)
 static void
 analyze_function_body (struct cgraph_node *node, bool early)
 {
-  sreal time = 0;
+  sreal time = PARAM_VALUE (PARAM_UNINLINED_FUNCTION_TIME);
   /* Estimate static overhead for function prologue/epilogue and alignment. */
-  int size = 2;
+  int size = PARAM_VALUE (PARAM_UNINLINED_FUNCTION_INSNS);
   /* Benefits are scaled by probability of elimination that is in range
      <0,2>.  */
   basic_block bb;

gcc/ipa-inline.c

@@ -637,8 +637,7 @@ want_early_inline_function_p (struct cgraph_edge *e)
 
       if (growth <= PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SIZE))
 	;
-      else if (!e->maybe_hot_p ()
+      else if (!e->maybe_hot_p ())
-	       && growth > 0)
 	{
 	  if (dump_enabled_p ())
 	    dump_printf_loc (MSG_MISSED_OPTIMIZATION, e->call_stmt,
@@ -791,7 +790,7 @@ want_inline_small_function_p (struct cgraph_edge *e, bool report)
       ipa_hints hints = estimate_edge_hints (e);
       int big_speedup = -1; /* compute this lazily */
 
-      if (growth <= PARAM_VALUE (PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SIZE)))
+      if (growth <= PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SIZE))
 	;
       /* Apply MAX_INLINE_INSNS_SINGLE limit.  Do not do so when
 	 hints suggests that inlining given function is very profitable.  */
@@ -809,9 +808,8 @@ want_inline_small_function_p (struct cgraph_edge *e, bool report)
 	  want_inline = false;
 	}
       else if (!DECL_DECLARED_INLINE_P (callee->decl)
-	       && (in_lto_p
+	       && !opt_for_fn (e->caller->decl, flag_inline_functions)
-		   && growth >= PARAM_VALUE (PARAM_EARLY_INLINING_INSNS))
+	       && growth >= PARAM_VALUE (PARAM_MAX_INLINE_INSNS_SMALL))
-	       && !opt_for_fn (e->caller->decl, flag_inline_functions))
 	{
 	  /* growth_likely_positive is expensive, always test it last.  */
           if (growth >= MAX_INLINE_INSNS_SINGLE

gcc/params.def

@@ -83,6 +83,11 @@ DEFPARAM (PARAM_MAX_INLINE_INSNS_AUTO,
 	  "The maximum number of instructions when automatically inlining.",
 	  30, 0, 0)
 
+DEFPARAM (PARAM_MAX_INLINE_INSNS_SMALL,
+	  "max-inline-insns-small",
+	  "The maximum number of instructions when automatically inlining small functions.",
+	  0, 0, 0)
+
 DEFPARAM (PARAM_MAX_INLINE_INSNS_SIZE,
 	  "max-inline-insns-size",
 	  "The maximum number of instructions when inlining for size.",

gcc/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2019-01-05  Jan Hubicka  <hubicka@ucw.cz>
+
+	* gcc.dg/ipa/ipcp-2.c: Update bounds.
+
 2019-01-05  Dominique d'Humieres  <dominiq@gcc.gnu.org>
 
 	* gcc.dg/plugin/plugindir1.c: Adjust dg-prune-output for Darwin.

gcc/testsuite/gcc.dg/ipa/ipcp-2.c

@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O3 -fipa-cp -fipa-cp-clone -fdump-ipa-cp -fno-early-inlining --param ipa-cp-eval-threshold=80"  } */
+/* { dg-options "-O3 -fipa-cp -fipa-cp-clone -fdump-ipa-cp -fno-early-inlining --param ipa-cp-eval-threshold=200"  } */
 /* { dg-add-options bind_pic_locally } */
 
 extern int get_stuff (int);