* gcc-interface/decl.c (gnat_to_gnu_entity) <E_Record_Subtype>: Do not

[pf3gnuchains/gcc-fork.git] / gcc / df.h

diff --git a/gcc/df.h b/gcc/df.h
index a585b3b..aec9788 100644 (file)
--- a/gcc/df.h
+++ b/gcc/df.h
@@ -1,7 +1,7 @@
 /* Form lists of pseudo register references for autoinc optimization
    for GNU compiler.  This is part of flow optimization.
    Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008,
-   2009, 2010  Free Software Foundation, Inc.
+   2009, 2010, 2011, 2012  Free Software Foundation, Inc.
    Originally contributed by Michael P. Hayes
              (m.hayes@elec.canterbury.ac.nz, mhayes@redhat.com)
    Major rewrite contributed by Danny Berlin (dberlin@dberlin.org)
@@ -53,7 +53,7 @@ union df_ref_d;
 #define DF_RD      3      /* Reaching Defs. */
 #define DF_CHAIN   4      /* Def-Use and/or Use-Def Chains. */
 #define DF_WORD_LR 5      /* Subreg tracking lr.  */
-#define DF_NOTE    6      /* REG_DEF and REG_UNUSED notes. */
+#define DF_NOTE    6      /* REG_DEAD and REG_UNUSED notes.  */
 #define DF_MD      7      /* Multiple Definitions. */
 
 #define DF_LAST_PROBLEM_PLUS1 (DF_MD + 1)
@@ -67,7 +67,7 @@ enum df_flow_dir
   };
 
 /* Descriminator for the various df_ref types.  */
-enum df_ref_class {DF_REF_BASE, DF_REF_ARTIFICIAL, DF_REF_REGULAR, DF_REF_EXTRACT};
+enum df_ref_class {DF_REF_BASE, DF_REF_ARTIFICIAL, DF_REF_REGULAR};
 
 /* The first of these us a set of a registers.  The remaining three
    are all uses of a register (the mem_load and mem_store relate to
@@ -402,26 +402,12 @@ struct df_regular_ref
   rtx *loc;
 };
 
-
-/* A df_ref_extract is just a df_ref with a width and offset field at
-   the end of it.  It is used to hold this information if the ref was
-   wrapped by a SIGN_EXTRACT or a ZERO_EXTRACT and to pass this info
-   to passes that wish to process partial regs precisely.  */
-struct df_extract_ref
-{
-  struct df_regular_ref base;
-  int width;
-  int offset;
-  enum machine_mode mode;
-};
-
 /* Union of the different kinds of defs/uses placeholders.  */
 union df_ref_d
 {
   struct df_base_ref base;
   struct df_regular_ref regular_ref;
   struct df_artificial_ref artificial_ref;
-  struct df_extract_ref extract_ref;
 };
 typedef union df_ref_d *df_ref;
 
@@ -588,7 +574,7 @@ struct df_d
      uses and defs as well as refs in eq notes are ignored.  If the
      ref is a def, it cannot be a MAY_CLOBBER def.  If the ref is a
      use, it cannot be the emim_reg_set or be the frame or arg pointer
-     register.
+     register.  Uses in debug insns are ignored.
 
      IT IS NOT ACCEPTABLE TO MANUALLY CHANGE THIS ARRAY.  This array
      always reflects the actual number of refs in the insn stream that
@@ -645,7 +631,7 @@ struct df_d
 #define DF_REF_REAL_LOC(REF) (GET_CODE (*((REF)->regular_ref.loc)) == SUBREG \
                                ? &SUBREG_REG (*((REF)->regular_ref.loc)) : ((REF)->regular_ref.loc))
 #define DF_REF_REG(REF) ((REF)->base.reg)
-#define DF_REF_LOC(REF) ((DF_REF_CLASS(REF) == DF_REF_REGULAR || DF_REF_CLASS(REF) == DF_REF_EXTRACT) ? \
+#define DF_REF_LOC(REF) (DF_REF_CLASS(REF) == DF_REF_REGULAR ? \
                         (REF)->regular_ref.loc : NULL)
 #define DF_REF_BB(REF) (DF_REF_IS_ARTIFICIAL(REF) ? \
                         (REF)->artificial_ref.bb : BLOCK_FOR_INSN (DF_REF_INSN(REF)))
@@ -911,7 +897,6 @@ extern void df_simple_dataflow (enum df_flow_dir, df_init_function,
 extern void df_mark_solutions_dirty (void);
 extern bool df_get_bb_dirty (basic_block);
 extern void df_set_bb_dirty (basic_block);
-extern void df_set_bb_dirty_nonlr (basic_block);
 extern void df_compact_blocks (void);
 extern void df_bb_replace (int, basic_block);
 extern void df_bb_delete (int);
@@ -985,7 +970,9 @@ extern void df_simulate_one_insn_backwards (basic_block, rtx, bitmap);
 extern void df_simulate_finalize_backwards (basic_block, bitmap);
 extern void df_simulate_initialize_forwards (basic_block, bitmap);
 extern void df_simulate_one_insn_forwards (basic_block, rtx, bitmap);
-
+extern void simulate_backwards_to_point (basic_block, regset, rtx);
+extern bool can_move_insns_across (rtx, rtx, rtx, rtx, basic_block, regset,
+                                  regset, rtx *);
 /* Functions defined in df-scan.c.  */
 
 extern void df_scan_alloc (bitmap);
@@ -994,8 +981,8 @@ extern void df_grow_reg_info (void);
 extern void df_grow_insn_info (void);
 extern void df_scan_blocks (void);
 extern df_ref df_ref_create (rtx, rtx *, rtx,basic_block,
-                                    enum df_ref_type, int ref_flags,
-                                    int, int, enum machine_mode);
+                            enum df_ref_type, int ref_flags);
+extern void df_uses_create (rtx *, rtx, int);
 extern void df_ref_remove (df_ref);
 extern struct df_insn_info * df_insn_create_insn_record (rtx);
 extern void df_insn_delete (basic_block, unsigned int);