IPA ICF pass 1/N

	* gimple-iterator.h (gsi_next_nonvirtual_phi): New function.
	* ipa-prop.h (count_formal_params): Global function created from static.
	* ipa-prop.c (count_formal_params): Likewise.
	* ipa-utils.c (ipa_merge_profiles): Be more tolerant if we merge
	profiles for semantically equivalent functions.
	* passes.c (do_per_function): If we load body of a function
	during WPA, this condition should behave same.
	* varpool.c (ctor_for_folding): More tolerant assert for variable
	aliases created during WPA.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@213417 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 24 insertions, 0 deletions

diff --git a/gcc/gimple-iterator.h b/gcc/gimple-iterator.h
index 909d58be892..47168b9d646 100644
--- a/gcc/gimple-iterator.h
+++ b/gcc/gimple-iterator.h
@@ -281,6 +281,30 @@ gsi_last_nondebug_bb (basic_block bb)
   return i;
 }
 
+/* Iterates I statement iterator to the next non-virtual statement.  */
+
+static inline void
+gsi_next_nonvirtual_phi (gimple_stmt_iterator *i)
+{
+  gimple phi;
+
+  if (gsi_end_p (*i))
+    return;
+
+  phi = gsi_stmt (*i);
+  gcc_assert (phi != NULL);
+
+  while (virtual_operand_p (gimple_phi_result (phi)))
+    {
+      gsi_next (i);
+
+      if (gsi_end_p (*i))
+	return;
+
+      phi = gsi_stmt (*i);
+    }
+}
+
 /* Return the basic block associated with this iterator.  */
 
 static inline basic_block