2010-04-27 Jonathan Wakely <jwakely.gcc@gmail.com>

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

diff --git a/gcc/predict.def b/gcc/predict.def
index cf31442..4b3e87a 100644 (file)
--- a/gcc/predict.def
+++ b/gcc/predict.def
@@ -1,11 +1,11 @@
 /* Definitions for the branch prediction routines in the GNU compiler.
-   Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2001, 2003, 2004, 2007, 2008 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
 GCC is free software; you can redistribute it and/or modify it under
 the terms of the GNU General Public License as published by the Free
-Software Foundation; either version 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
 version.
 
 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
@@ -14,9 +14,8 @@ FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 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, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA.  */
+along with GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
 
 /* Before including this file, you should define a macro:
 
@@ -33,7 +32,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
    HITRATE is the probability that edge predicted by predictor as taken
    will be really taken (so it should be always above
    REG_BR_PROB_BASE / 2).  */
-   
+
 
 /* A value used as final outcome of all heuristics.  */
 DEF_PREDICTOR (PRED_COMBINED, "combined", PROB_ALWAYS, 0)
@@ -67,14 +66,14 @@ DEF_PREDICTOR (PRED_LOOP_ITERATIONS_GUESSED, "guessed loop iterations",
               PROB_ALWAYS, PRED_FLAG_FIRST_MATCH)
 
 /* Branch containing goto is probably not taken.  */
-DEF_PREDICTOR (PRED_CONTINUE, "continue", HITRATE (56), 0)
+DEF_PREDICTOR (PRED_CONTINUE, "continue", HITRATE (50), 0)
 
 /* Branch to basic block containing call marked by noreturn attribute.  */
-DEF_PREDICTOR (PRED_NORETURN, "noreturn call", HITRATE (99),
+DEF_PREDICTOR (PRED_NORETURN, "noreturn call", PROB_VERY_LIKELY,
               PRED_FLAG_FIRST_MATCH)
 
 /* Branch to basic block containing call marked by cold function attribute.  */
-DEF_PREDICTOR (PRED_COLD_FUNCTION, "cold function call", HITRATE (99),
+DEF_PREDICTOR (PRED_COLD_FUNCTION, "cold function call", PROB_VERY_LIKELY,
               PRED_FLAG_FIRST_MATCH)
 
 /* Loopback edge is taken.  */
@@ -93,15 +92,15 @@ DEF_PREDICTOR (PRED_TREE_POINTER, "pointer (on trees)", HITRATE (85), 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 (70), 0)
-DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", HITRATE (69), 0)
+DEF_PREDICTOR (PRED_TREE_OPCODE_POSITIVE, "opcode values positive (on trees)", HITRATE (73), 0)
+DEF_PREDICTOR (PRED_TREE_OPCODE_NONEQUAL, "opcode values nonequal (on trees)", HITRATE (72), 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 (69), 0)
+DEF_PREDICTOR (PRED_CALL, "call", HITRATE (71), 0)
 
 /* Branch causing function to terminate is probably not taken.  */
-DEF_PREDICTOR (PRED_TREE_EARLY_RETURN, "early return (on trees)", HITRATE (54), 0)
+DEF_PREDICTOR (PRED_TREE_EARLY_RETURN, "early return (on trees)", HITRATE (61), 0)
 
 /* Branch containing goto is probably not taken.  */
 DEF_PREDICTOR (PRED_GOTO, "goto", HITRATE (70), 0)
@@ -113,7 +112,7 @@ DEF_PREDICTOR (PRED_CONST_RETURN, "const return", HITRATE (67), 0)
 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 (96), 0)
+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", PROB_VERY_LIKELY, 0)