[PATCH] Fix PR51519

[Richard Guenther]

This fixes PR51519.

Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.

Richard.

2011-12-13  Richard Guenther  <rguent...@suse.de>

        PR tree-optimization/51519
        * ipa-inline.c (edge_badness): Use edge growth in non-guessed
        branch probability case as well.

        * gcc.dg/pr51519.c: New testcase.

Index: gcc/ipa-inline.c
===================================================================
--- gcc/ipa-inline.c    (revision 182220)
+++ gcc/ipa-inline.c    (working copy)
@@ -861,7 +861,7 @@ edge_badness (struct cgraph_edge *edge,
   else
     {
       int nest = MIN (inline_edge_summary (edge)->loop_depth, 8);
-      badness = estimate_growth (callee) * 256;
+      badness = growth * 256;
 
       /* Decrease badness if call is nested.  */
       if (badness > 0)
Index: gcc/testsuite/gcc.dg/pr51519.c
===================================================================
--- gcc/testsuite/gcc.dg/pr51519.c      (revision 0)
+++ gcc/testsuite/gcc.dg/pr51519.c      (revision 0)
@@ -0,0 +1,39 @@
+/* { dg-do compile } */
+/* { dg-options "-O -fno-guess-branch-probability -findirect-inlining" } */
+
+void fe (void);
+int i;
+
+static inline void
+FX (void (*f) (void))
+{
+  fe ();
+  (*f) ();
+}
+
+static inline void
+f4 ()
+{
+  if (i)
+    FX (fe);
+}
+
+static inline void
+f3 (void)
+{
+  f4 ();
+  if (i)
+    FX (f4);
+}
+
+static inline void
+f2 (void)
+{
+  FX (&f3);
+}
+
+void
+f1 (void)
+{
+  FX (&f2);
+}