ipa-reference.c (ipa_reference_optimization_summary_d): Rename statics_not_read…

ipa-reference.c (ipa_reference_optimization_summary_d): Rename statics_not_read and statics_not_written to statics_read and...


	* ipa-reference.c (ipa_reference_optimization_summary_d): Rename
	statics_not_read and statics_not_written to statics_read and
	statics_written respectively.
	(no_module_statics): New static var.
	(ipa_reference_get_not_read_global): Rename to ...
	(ipa_reference_get_read_global): ... this.
	(ipa_reference_get_not_written_global): Rename to ...
	(ipa_reference_get_written_global): ... this.
	(dump_static_vars_set_to_file): Dump no_module_statics.
	(copy_static_var_set): Add for propagation parameter.
	(ipa_init): Initialize no_module_statics.
	(ipa_ref_opt_summary_t::duplicate): Update.
	(ipa_ref_opt_summary_t::remove): Update.
	(propagate): Update.
	(write_node_summary_p): Look correctly for bitmap differences.
	(ipa_reference_write_optimization_summary): Update.
	(ipa_reference_read_optimization_summary): Update.
	* ipa-reference.h
	(ipa_reference_get_not_read_global): Rename to ...
	(ipa_reference_get_read_global): ... this.
	(ipa_reference_get_not_written_global): Rename to ...
	(ipa_reference_get_written_global): ... this.
	* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Update.
	(call_may_clobber_ref_p_1): Update.

From-SVN: r277403

gcc/ChangeLog

+2019-10-24  Jan Hubicka  <hubicka@ucw.cz>
+
+	* ipa-reference.c (ipa_reference_optimization_summary_d): Rename
+	statics_not_read and statics_not_written to statics_read and
+	statics_written respectively.
+	(no_module_statics): New static var.
+	(ipa_reference_get_not_read_global): Rename to ...
+	(ipa_reference_get_read_global): ... this.
+	(ipa_reference_get_not_written_global): Rename to ...
+	(ipa_reference_get_written_global): ... this.
+	(dump_static_vars_set_to_file): Dump no_module_statics.
+	(copy_static_var_set): Add for propagation parameter.
+	(ipa_init): Initialize no_module_statics.
+	(ipa_ref_opt_summary_t::duplicate): Update.
+	(ipa_ref_opt_summary_t::remove): Update.
+	(propagate): Update.
+	(write_node_summary_p): Look correctly for bitmap differences.
+	(ipa_reference_write_optimization_summary): Update.
+	(ipa_reference_read_optimization_summary): Update.
+	* ipa-reference.h
+	(ipa_reference_get_not_read_global): Rename to ...
+	(ipa_reference_get_read_global): ... this.
+	(ipa_reference_get_not_written_global): Rename to ...
+	(ipa_reference_get_written_global): ... this.
+	* tree-ssa-alias.c (ref_maybe_used_by_call_p_1): Update.
+	(call_may_clobber_ref_p_1): Update.
+
 2019-10-24  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
 	* config/msp430/msp430.c (msp430_hard_regno_nregs_has_padding): Remove

gcc/ipa-reference.h

@@ -22,8 +22,8 @@ along with GCC; see the file COPYING3.  If not see
 #define GCC_IPA_REFERENCE_H
 
 /* In ipa-reference.c  */
-bitmap ipa_reference_get_not_read_global (struct cgraph_node *fn);
-bitmap ipa_reference_get_not_written_global (struct cgraph_node *fn);
+bitmap ipa_reference_get_read_global (struct cgraph_node *fn);
+bitmap ipa_reference_get_written_global (struct cgraph_node *fn);
 void ipa_reference_c_finalize (void);
 int ipa_reference_var_uid (tree t);
 

gcc/tree-ssa-alias.c

@@ -2529,14 +2529,16 @@ ref_maybe_used_by_call_p_1 (gcall *call, ao_ref *ref, bool tbaa_p)
   if (callee != NULL_TREE && VAR_P (base) && TREE_STATIC (base))
     {
       struct cgraph_node *node = cgraph_node::get (callee);
-      bitmap not_read;
+      bitmap read;
+      int id;
 
       /* FIXME: Callee can be an OMP builtin that does not have a call graph
 	 node yet.  We should enforce that there are nodes for all decls in the
 	 IL and remove this check instead.  */
       if (node
-	  && (not_read = ipa_reference_get_not_read_global (node))
-	  && bitmap_bit_p (not_read, ipa_reference_var_uid (base)))
+	  && (id = ipa_reference_var_uid (base)) != -1
+	  && (read = ipa_reference_get_read_global (node))
+	  && !bitmap_bit_p (read, id))
 	goto process_args;
     }
 
@@ -2924,11 +2926,13 @@ call_may_clobber_ref_p_1 (gcall *call, ao_ref *ref)
   if (callee != NULL_TREE && VAR_P (base) && TREE_STATIC (base))
     {
       struct cgraph_node *node = cgraph_node::get (callee);
-      bitmap not_written;
+      bitmap written;
+      int id;
 
       if (node
-	  && (not_written = ipa_reference_get_not_written_global (node))
-	  && bitmap_bit_p (not_written, ipa_reference_var_uid (base)))
+	  && (id = ipa_reference_var_uid (base)) != -1
+	  && (written = ipa_reference_get_written_global (node))
+	  && !bitmap_bit_p (written, id))
 	return false;
     }