re PR tree-optimization/15366 ([3.4 only][unit-at-a-time] -fno-inline-functions…

re PR tree-optimization/15366 ([3.4 only][unit-at-a-time] -fno-inline-functions is ignored for static functions)

2005-09-01  Richard Guenther  <rguenther@suse.de>

	PR tree-optimization/15366
	* common.opt: Add -finline-functions-called-once.
	Put -fearly-inlining in alphabetically ordered place.
	* doc/invoke.texi: Document new option.
	* ipa-inline.c (cgraph_decide_inlining): Honour
	flag_inline_functions_called_once.

From-SVN: r103722

gcc/ChangeLog

+2005-09-01  Richard Guenther  <rguenther@suse.de>
+
+	PR tree-optimization/15366
+	* common.opt: Add -finline-functions-called-once.
+	Put -fearly-inlining in alphabetically ordered place.
+	* doc/invoke.texi: Document new option.
+	* ipa-inline.c (cgraph_decide_inlining): Honour
+	flag_inline_functions_called_once.
+
 2005-09-01  Jakub Jelinek  <jakub@redhat.com>
 
 	PR rtl-optimization/23478

gcc/common.opt

@@ -359,6 +359,10 @@ fdump-unnumbered
 Common Report Var(flag_dump_unnumbered) VarExists
 Suppress output of instruction numbers and line number notes in debugging dumps
 
+fearly-inlining
+Common Report Var(flag_early_inlining) Init(1)
+Perform early inlining
+
 feliminate-dwarf2-dups
 Common Report Var(flag_eliminate_dwarf2_dups)
 Perform DWARF2 duplicate elimination
@@ -480,9 +484,9 @@ finline-functions
 Common Report Var(flag_inline_functions)
 Integrate simple functions into their callers
 
-fearly-inlining
-Common Report Var(flag_early_inlining) Init(1)
-Perform early inlining
+finline-functions-called-once
+Common Report Var(flag_inline_functions_called_once) Init(1)
+Integrate functions called once into their callers
 
 finline-limit-
 Common RejectNegative Joined UInteger

gcc/doc/invoke.texi

@@ -306,7 +306,8 @@ Objective-C and Objective-C++ Dialects}.
 -fforce-addr  -ffunction-sections @gol
 -fgcse  -fgcse-lm  -fgcse-sm  -fgcse-las  -fgcse-after-reload @gol
 -floop-optimize -fcrossjumping  -fif-conversion  -fif-conversion2 @gol
--finline-functions  -finline-limit=@var{n}  -fkeep-inline-functions @gol
+-finline-functions  -finline-functions-called-once @gol
+-finline-limit=@var{n}  -fkeep-inline-functions @gol
 -fkeep-static-consts  -fmerge-constants  -fmerge-all-constants @gol
 -fmodulo-sched -fno-branch-count-reg @gol
 -fno-default-inline  -fno-defer-pop -floop-optimize2 -fmove-loop-invariants @gol
@@ -4480,6 +4481,15 @@ assembler code in its own right.
 
 Enabled at level @option{-O3}.
 
+@item -finline-functions-called-once
+@opindex finline-functions-called-once
+Consider all @code{static} functions called once for inlining into their
+caller even if they are not marked @code{inline}.  If a call to a given
+function is integrated, then the function is not output as assembler code
+in its own right.
+
+Enabled if @option{-funit-at-a-time} is enabled.
+
 @item -fearly-inlining
 @opindex fearly-inlining
 Inline functions marked by @code{always_inline} and functions whose body seems

gcc/ipa-inline.c

@@ -944,9 +944,11 @@ cgraph_decide_inlining (void)
     }
 
   if (!flag_really_no_inline)
-    {
-      cgraph_decide_inlining_of_small_functions ();
+    cgraph_decide_inlining_of_small_functions ();
 
+  if (!flag_really_no_inline
+      && flag_inline_functions_called_once)
+    {
       if (dump_file)
 	fprintf (dump_file, "\nDeciding on functions called once:\n");