X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fregs.h;h=ee074b9ed1bed325dfa4f22da85d2739327170fd;hp=848c306a3ff35f97502bbc1f506f46de2a05974d;hb=c1fe988d31caa185c3527352c3d5cd285975e500;hpb=3dc77328bc12b3fda1709cb5a6da381b6144fc2c

diff --git a/gcc/regs.h b/gcc/regs.h
index 848c306a3ff..ee074b9ed1b 100644
--- a/gcc/regs.h
+++ b/gcc/regs.h
@@ -16,13 +16,14 @@ for more details.
 
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
 
 #ifndef GCC_REGS_H
 #define GCC_REGS_H
 
 #include "varray.h"
+#include "obstack.h"
 #include "hard-reg-set.h"
 #include "basic-block.h"
 
@@ -50,7 +51,6 @@ typedef struct reg_info_def
 {				/* fields set by reg_scan */
   int first_uid;		/* UID of first insn to use (REG n) */
   int last_uid;			/* UID of last insn to use (REG n) */
-  int last_note_uid;		/* UID of last note to use (REG n) */
 
 				/* fields set by reg_scan & flow_analysis */
   int sets;			/* # of times (REG n) is set */
@@ -61,20 +61,24 @@ typedef struct reg_info_def
   int deaths;			/* # of times (REG n) dies */
   int live_length;		/* # of instructions (REG n) is live */
   int calls_crossed;		/* # of calls (REG n) is live across */
+  int throw_calls_crossed;	/* # of calls that may throw (REG n) is live across */
   int basic_block;		/* # of basic blocks (REG n) is used in */
-  char changes_mode;		/* whether (SUBREG (REG n)) exists and
-				   is illegal.  */
 } reg_info;
 
-extern varray_type reg_n_info;
+typedef reg_info *reg_info_p;
+
+DEF_VEC_P(reg_info_p);
+DEF_VEC_ALLOC_P(reg_info_p,heap);
+
+extern VEC(reg_info_p,heap) *reg_n_info;
 
 /* Indexed by n, gives number of times (REG n) is used or set.  */
 
-#define REG_N_REFS(N) (VARRAY_REG (reg_n_info, N)->refs)
+#define REG_N_REFS(N) (VEC_index (reg_info_p, reg_n_info, N)->refs)
 
 /* Estimate frequency of references to register N.  */
 
-#define REG_FREQ(N) (VARRAY_REG (reg_n_info, N)->freq)
+#define REG_FREQ(N) (VEC_index (reg_info_p, reg_n_info, N)->freq)
 
 /* The weights for each insn varries from 0 to REG_FREQ_BASE.
    This constant does not need to be high, as in infrequently executed
@@ -98,7 +102,7 @@ extern varray_type reg_n_info;
    ??? both regscan and flow allocate space for this.  We should settle
    on just copy.  */
 
-#define REG_N_SETS(N) (VARRAY_REG (reg_n_info, N)->sets)
+#define REG_N_SETS(N) (VEC_index (reg_info_p, reg_n_info, N)->sets)
 
 /* Indexed by N, gives number of insns in which register N dies.
    Note that if register N is live around loops, it can die
@@ -106,7 +110,7 @@ extern varray_type reg_n_info;
    So this is only a reliable indicator of how many regions of life there are
    for registers that are contained in one basic block.  */
 
-#define REG_N_DEATHS(N) (VARRAY_REG (reg_n_info, N)->deaths)
+#define REG_N_DEATHS(N) (VEC_index (reg_info_p, reg_n_info, N)->deaths)
 
 /* Get the number of consecutive words required to hold pseudo-reg N.  */
 
@@ -125,7 +129,14 @@ extern varray_type reg_n_info;
 
 /* Indexed by N, gives number of CALL_INSNS across which (REG n) is live.  */
 
-#define REG_N_CALLS_CROSSED(N) (VARRAY_REG (reg_n_info, N)->calls_crossed)
+#define REG_N_CALLS_CROSSED(N)					\
+  (VEC_index (reg_info_p, reg_n_info, N)->calls_crossed)
+
+/* Indexed by N, gives number of CALL_INSNS that may throw, across which
+   (REG n) is live.  */
+
+#define REG_N_THROWING_CALLS_CROSSED(N) \
+  (VEC_index (reg_info_p, reg_n_info, N)->throw_calls_crossed)
 
 /* Total number of instructions at which (REG n) is live.
    The larger this is, the less priority (REG n) gets for
@@ -142,7 +153,8 @@ extern varray_type reg_n_info;
    is not required.  global.c makes an allocno for this but does
    not try to assign a hard register to it.  */
 
-#define REG_LIVE_LENGTH(N) (VARRAY_REG (reg_n_info, N)->live_length)
+#define REG_LIVE_LENGTH(N)				\
+  (VEC_index (reg_info_p, reg_n_info, N)->live_length)
 
 /* Vector of substitutions of register numbers,
    used to map pseudo regs into hardware regs.
@@ -177,7 +189,7 @@ extern enum machine_mode reg_raw_mode[FIRST_PSEUDO_REGISTER];
    It is sometimes adjusted for subsequent changes during loop,
    but not adjusted by cse even if cse invalidates it.  */
 
-#define REGNO_FIRST_UID(N) (VARRAY_REG (reg_n_info, N)->first_uid)
+#define REGNO_FIRST_UID(N) (VEC_index (reg_info_p, reg_n_info, N)->first_uid)
 
 /* Vector indexed by regno; gives uid of last insn using that reg.
    This is computed by reg_scan for use by cse and loop.
@@ -185,11 +197,7 @@ extern enum machine_mode reg_raw_mode[FIRST_PSEUDO_REGISTER];
    but not adjusted by cse even if cse invalidates it.
    This is harmless since cse won't scan through a loop end.  */
 
-#define REGNO_LAST_UID(N) (VARRAY_REG (reg_n_info, N)->last_uid)
-
-/* Similar, but includes insns that mention the reg in their notes.  */
-
-#define REGNO_LAST_NOTE_UID(N) (VARRAY_REG (reg_n_info, N)->last_note_uid)
+#define REGNO_LAST_UID(N) (VEC_index (reg_info_p, reg_n_info, N)->last_uid)
 
 /* List made of EXPR_LIST rtx's which gives pairs of pseudo registers
    that have to go in the same hard reg.  */