This patches fixes bugs that caused the multi-version tests to fail.
* mversn-dispatch.c (specialize_call): Rebuild cgraph edges after
specialization.
(clone_and_dispatch_function): Rebuild cgraph edges to compute
inline parameters.
(do_convert_builtin_dispatch): Ditto.
(convert_builtin_dispatch): Remove call to mark_syms_for_renaming
for phi nodes.
* passes.c (init_optimization_passes): Remove pass to rebuild
cgraph edges after converting __builtin_dispatch.
Index: mversn-dispatch.c
===
--- mversn-dispatch.c (revision 178618)
+++ mversn-dispatch.c (working copy)
@@ -1166,6 +1166,10 @@ specialize_call (tree clone_decl, int side)
gsi = gsi_for_stmt (specialized_call_stmt);
}
}
+
+ /* Rebuild cgraph edges for the clone. */
+ rebuild_cgraph_edges ();
+
current_function_decl = old_current_function_decl;
pop_cfun ();
}
@@ -1282,6 +1286,8 @@ clone_and_dispatch_function (struct cgraph_node *o
global. */
update_ssa (TODO_update_ssa);
+ /* cgraph edges need to be updated before computing inline parameters. */
+ rebuild_cgraph_edges ();
compute_inline_parameters (cgraph_get_create_node (orig_fndecl), false);
DECL_DECLARED_INLINE_P (orig_fndecl) = 1;
DECL_UNINLINABLE (orig_fndecl) = 0;
@@ -1623,7 +1629,6 @@ convert_builtin_dispatch (gimple stmt)
phinode = create_phi_node (tmp_var, bb4);
add_phi_arg (phinode, ssa_if_name, e24, UNKNOWN_LOCATION);
add_phi_arg (phinode, ssa_else_name, e34, UNKNOWN_LOCATION);
- mark_symbols_for_renaming (phinode);
gcc_assert (lhs_result);
assign_stmt
= gimple_build_assign (lhs_result, gimple_phi_result (phinode));
@@ -1732,6 +1737,8 @@ do_convert_builtin_dispatch (void)
++ix)
convert_builtin_dispatch (builtin_stmt);
+ /* cgraph edges need to be updated before computing inline parameters. */
+ rebuild_cgraph_edges ();
compute_inline_parameters (cgraph_get_create_node (current_function_decl),
false);
Index: passes.c
===
--- passes.c(revision 178618)
+++ passes.c(working copy)
@@ -1254,10 +1254,6 @@ init_optimization_passes (void)
{
struct opt_pass **p = &pass_ipa_multiversion_dispatch.pass.sub;
NEXT_PASS (pass_tree_convert_builtin_dispatch);
- /* Rebuilding cgraph edges is necessary as the above passes change
- the call graph. Otherwise, future optimizations use the old
-call graph and make wrong decisions sometimes.*/
- NEXT_PASS (pass_rebuild_cgraph_edges);
}
NEXT_PASS (pass_ipa_lower_emutls);
*p = NULL;
--
This patch is available for review at http://codereview.appspot.com/4961065
