PR fortran/26769

[pf3gnuchains/gcc-fork.git] / gcc / predict.def

diff --git a/gcc/predict.def b/gcc/predict.def
index 01290b7..997f4d2 100644 (file)
--- a/gcc/predict.def
+++ b/gcc/predict.def
@@ -1,6 +1,5 @@
-/* This file contains the definitions and documentation for the
-   builtins used in the GNU compiler.
-   Copyright (C) 2001 Free Software Foundation, Inc.
+/* Definitions for the branch prediction routines in the GNU compiler.
+   Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -16,8 +15,8 @@ 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.  */
 
 /* Before including this file, you should define a macro:
 
@@ -42,7 +41,7 @@ DEF_PREDICTOR (PRED_COMBINED, "combined", PROB_ALWAYS, 0)
 /* An outcome estimated by Dempster-Shaffer theory.  */
 DEF_PREDICTOR (PRED_DS_THEORY, "DS theory", PROB_ALWAYS, 0)
 
-/* An combined heuristics using probability determined by first
+/* A combined heuristics using probability determined by first
    matching heuristics from this list.  */
 DEF_PREDICTOR (PRED_FIRST_MATCH, "first match", PROB_ALWAYS, 0)
 
@@ -63,15 +62,18 @@ DEF_PREDICTOR (PRED_LOOP_ITERATIONS, "loop iterations", PROB_ALWAYS,
 DEF_PREDICTOR (PRED_BUILTIN_EXPECT, "__builtin_expect", PROB_VERY_LIKELY,
               PRED_FLAG_FIRST_MATCH)
 
+/* Branch containing goto is probably not taken.  */
+DEF_PREDICTOR (PRED_CONTINUE, "continue", HITRATE (56), 0)
+
 /* Branch to basic block containing call marked by noreturn attribute.  */
-DEF_PREDICTOR (PRED_NORETURN, "noreturn call", PROB_ALWAYS,
+DEF_PREDICTOR (PRED_NORETURN, "noreturn call", HITRATE (99),
               PRED_FLAG_FIRST_MATCH)
 
 /* Loopback edge is taken.  */
 DEF_PREDICTOR (PRED_LOOP_BRANCH, "loop branch", HITRATE (89),
               PRED_FLAG_FIRST_MATCH)
 
-/* Edge causing loop to terminate is probably not taken. */
+/* Edge causing loop to terminate is probably not taken.  */
 DEF_PREDICTOR (PRED_LOOP_EXIT, "loop exit", HITRATE (90),
               PRED_FLAG_FIRST_MATCH)
 
@@ -86,13 +88,35 @@ DEF_PREDICTOR (PRED_LOOP_PRECONDITIONING, "loop preconditioning", PROB_VERY_LIKE
 DEF_PREDICTOR (PRED_LOOP_HEADER, "loop header", HITRATE (64), 0)
 
 /* Pointers are usually not NULL.  */
-DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (83), 0)
+DEF_PREDICTOR (PRED_POINTER, "pointer", HITRATE (81), 0)
+DEF_PREDICTOR (PRED_TREE_POINTER, "pointer (on trees)", HITRATE (81), 0)
 
 /* NE is probable, EQ not etc...  */
-DEF_PREDICTOR (PRED_OPCODE, "opcode", HITRATE (55), 0)
+DEF_PREDICTOR (PRED_OPCODE_POSITIVE, "opcode values positive", HITRATE (79), 0)
+DEF_PREDICTOR (PRED_OPCODE_NONEQUAL, "opcode values nonequal", HITRATE (71), 0)
+DEF_PREDICTOR (PRED_FPOPCODE, "fp_opcode", HITRATE (90), 0)
+DEF_PREDICTOR (PRED_TREE_OPCODE_POSITIVE, "opcode values positive (on trees)", HITRATE (79), 0)
+DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", HITRATE (71), 0)
+DEF_PREDICTOR (PRED_TREE_FPOPCODE, "fp_opcode (on trees)", HITRATE (90), 0)
 
 /* Branch guarding call is probably taken.  */
 DEF_PREDICTOR (PRED_CALL, "call", HITRATE (70), 0)
 
 /* Branch causing function to terminate is probably not taken.  */
-DEF_PREDICTOR (PRED_ERROR_RETURN, "error return", PROB_LIKELY, 0)
+DEF_PREDICTOR (PRED_EARLY_RETURN, "early return", HITRATE (67), 0)
+DEF_PREDICTOR (PRED_TREE_EARLY_RETURN, "early return (on trees)", HITRATE (67), 0)
+
+/* Branch containing goto is probably not taken.  */
+DEF_PREDICTOR (PRED_GOTO, "goto", HITRATE (70), 0)
+
+/* Branch ending with return constant is probably not taken.  */
+DEF_PREDICTOR (PRED_CONST_RETURN, "const return", HITRATE (95), 0)
+
+/* Branch ending with return negative constant is probably not taken.  */
+DEF_PREDICTOR (PRED_NEGATIVE_RETURN, "negative return", HITRATE (96), 0)
+
+/* Branch ending with return; is probably not taken */
+DEF_PREDICTOR (PRED_NULL_RETURN, "null return", HITRATE (90), 0)
+
+/* Branches to a mudflap bounds check are extremely unlikely.  */
+DEF_PREDICTOR (PRED_MUDFLAP, "mudflap check", HITRATE (99), 0)