From: ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 29 Apr 2009 21:44:26 +0000 (+0000)
Subject: 	PR rtl-optimization/39938
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=225e5f6f49d9d76603062b097ed377c5f6f97533;p=thirdparty%2Fgcc.git

	PR rtl-optimization/39938
	* Makefile.in (cfgrtl.o): Add $(INSN_ATTR_H).
	* cfgrtl.c: Include insn-attr.h.
	(rest_of_pass_free_cfg): New function.
	(pass_free_cfg): Use rest_of_pass_free_cfg as execute function.
	* resource.c (init_resource_info): Remove call to df_analyze.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@146988 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c7a97ddde62e..888a769eb6d9 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2009-04-29  Eric Botcazou  <ebotcazou@adacore.com>
+            Steven Bosscher  <steven@gcc.gnu.org>
+
+	PR rtl-optimization/39938
+	* Makefile.in (cfgrtl.o): Add $(INSN_ATTR_H).
+	* cfgrtl.c: Include insn-attr.h.
+	(rest_of_pass_free_cfg): New function.
+	(pass_free_cfg): Use rest_of_pass_free_cfg as execute function.
+	* resource.c (init_resource_info): Remove call to df_analyze.
+
 2009-04-29  Richard Guenther  <rguenther@suse.de>
 
 	PR target/39943
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 2283138956e0..1a253489f81c 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -2802,7 +2802,8 @@ cfgexpand.o : cfgexpand.c $(TREE_FLOW_H) $(CONFIG_H) $(SYSTEM_H) \
    value-prof.h $(TREE_INLINE_H) $(TARGET_H) $(SSAEXPAND_H)
 cfgrtl.o : cfgrtl.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
    $(FLAGS_H) insn-config.h $(BASIC_BLOCK_H) $(REGS_H) hard-reg-set.h \
-   output.h $(TOPLEV_H) $(FUNCTION_H) $(EXCEPT_H) $(TM_P_H) insn-config.h $(EXPR_H) \
+   output.h $(TOPLEV_H) $(FUNCTION_H) $(EXCEPT_H) $(TM_P_H) $(INSN_ATTR_H) \
+   insn-config.h $(EXPR_H) \
    $(CFGLAYOUT_H) $(CFGLOOP_H) $(OBSTACK_H) $(TARGET_H) $(TREE_H) \
    $(TREE_PASS_H) $(DF_H) $(GGC_H)
 cfganal.o : cfganal.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(RTL_H) \
diff --git a/gcc/cfgrtl.c b/gcc/cfgrtl.c
index 36bc865916be..a2c0e0f20268 100644
--- a/gcc/cfgrtl.c
+++ b/gcc/cfgrtl.c
@@ -53,6 +53,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "toplev.h"
 #include "tm_p.h"
 #include "obstack.h"
+#include "insn-attr.h"
 #include "insn-config.h"
 #include "cfglayout.h"
 #include "expr.h"
@@ -408,13 +409,27 @@ free_bb_for_insn (void)
   return 0;
 }
 
+static unsigned int
+rest_of_pass_free_cfg (void)
+{
+#ifdef DELAY_SLOTS
+  /* The resource.c machinery uses DF but the CFG isn't guaranteed to be
+     valid at that point so it would be too late to call df_analyze.  */
+  if (optimize > 0 && flag_delayed_branch)
+    df_analyze ();
+#endif
+
+  free_bb_for_insn ();
+  return 0;
+}
+
 struct rtl_opt_pass pass_free_cfg =
 {
  {
   RTL_PASS,
   NULL,                                 /* name */
   NULL,                                 /* gate */
-  free_bb_for_insn,                     /* execute */
+  rest_of_pass_free_cfg,                /* execute */
   NULL,                                 /* sub */
   NULL,                                 /* next */
   0,                                    /* static_pass_number */
diff --git a/gcc/resource.c b/gcc/resource.c
index be76f688410a..91b86c9573be 100644
--- a/gcc/resource.c
+++ b/gcc/resource.c
@@ -1200,8 +1200,6 @@ init_resource_info (rtx epilogue_insn)
   FOR_EACH_BB (bb)
     if (LABEL_P (BB_HEAD (bb)))
       BLOCK_FOR_INSN (BB_HEAD (bb)) = bb;
-
-  df_analyze ();
 }
 
 /* Free up the resources allocated to mark_target_live_regs ().  This