[C++ PATCH] Fix inlined_stmts computation for inline throttling

[Jakub Jelinek]

Hi!

The computation of inlined_stmts looks wrong to me:
firstly DECL_NUM_STMTS of the to-be-inlined function is correctly accounted
to the function being expanded, but then the total number of statements in
the function being expanded is added to inlined_stmts. This means the
function being expanded plus gradually all the successful inlines will be
accounted many times. Say if
void bar () { ... }
void baz () { ... }
void foo () { bar (); baz (); ... }
these functions have initially 30, 40, 20 statements, then at the point of
expanding bar inlined_stmts will be bumped from 0 to 50 and when expanding
baz inlined_stmts will be bumped up to 140 (but it should be 70 at that
point).

2001-04-03  Jakub Jelinek  <jakub@redhat.com>

	* optimize.c (expand_call_inline): Only add newly inlined statements
	into inlined_stmts.

--- gcc/cp/optimize.c.jj	Fri Mar 30 11:44:59 2001
+++ gcc/cp/optimize.c	Tue Apr  3 14:50:40 2001
@@ -862,7 +862,7 @@ expand_call_inline (tp, walk_subtrees, d
 
   /* Our function now has more statements than it did before.  */
   DECL_NUM_STMTS (VARRAY_TREE (id->fns, 0)) += DECL_NUM_STMTS (fn);
-  id->inlined_stmts += DECL_NUM_STMTS (VARRAY_TREE (id->fns, 0));
+  id->inlined_stmts += DECL_NUM_STMTS (fn);
 
   /* Recurse into the body of the just inlined function.  */
   expand_calls_inline (inlined_body, id);

	Jakub