2011-05-27 Alexander Monakov <amonakov@ispras.ru>

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

diff --git a/gcc/params.def b/gcc/params.def
index 6b6e055..fa89a52 100644 (file)
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -1,5 +1,6 @@
 /* params.def - Run-time parameters.
-   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+   2011
    Free Software Foundation, Inc.
    Written by Mark Mitchell <mark@codesourcery.com>.
 
@@ -38,16 +39,6 @@ along with GCC; see the file COPYING3.  If not see
 
    Be sure to add an entry to invoke.texi summarizing the parameter.  */
 
-/* The threshold ratio between current and hottest structure counts.
-   We say that if the ratio of the current structure count,
-   calculated by profiling, to the hottest structure count
-   in the program is less than this parameter, then structure
-   reorganization is not applied. The default is 10%.  */
-DEFPARAM (PARAM_STRUCT_REORG_COLD_STRUCT_RATIO,
-         "struct-reorg-cold-struct-ratio",
-         "The threshold ratio between current and hottest structure counts",
-         10, 0, 100)
-
 /* When branch is predicted to be taken with probability lower than this
    threshold (in percent), then it is considered well predictable. */
 DEFPARAM (PARAM_PREDICTABLE_BRANCH_OUTCOME,
@@ -197,7 +188,7 @@ DEFPARAM(PARAM_IPCP_UNIT_GROWTH,
 DEFPARAM(PARAM_EARLY_INLINING_INSNS,
         "early-inlining-insns",
         "Maximal estimated growth of function body caused by early inlining of single call",
-        10, 0, 0)
+        11, 0, 0)
 DEFPARAM(PARAM_LARGE_STACK_FRAME,
         "large-stack-frame",
         "The size of stack frame to be considered large",
@@ -214,6 +205,13 @@ DEFPARAM(PARAM_MAX_GCSE_MEMORY,
         "The maximum amount of memory to be allocated by GCSE",
         50 * 1024 * 1024, 0, 0)
 
+/* The GCSE optimization of an expression will avoided if the ratio of
+   insertions to deletions is greater than this value.  */
+DEFPARAM(PARAM_MAX_GCSE_INSERTION_RATIO,
+        "max-gcse-insertion-ratio",
+        "The maximum ratio of insertions to deletions of expressions in GCSE",
+        20, 0, 0)
+
 /* This is the threshold ratio when to perform partial redundancy
    elimination after reload. We perform partial redundancy elimination
    when the following holds:
@@ -336,6 +334,11 @@ DEFPARAM(PARAM_SMS_MAX_II_FACTOR,
         "sms-max-ii-factor",
         "A factor for tuning the upper bound that swing modulo scheduler uses for scheduling a loop",
         100, 0, 0)
+/* The minimum value of stage count that swing modulo scheduler will generate.  */
+DEFPARAM(PARAM_SMS_MIN_SC,
+        "sms-min-sc",
+        "The minimum value of stage count that swing modulo scheduler will generate.",
+        2, 1, 1)
 DEFPARAM(PARAM_SMS_DFA_HISTORY,
         "sms-dfa-history",
         "The number of cycles the swing modulo scheduler considers when checking conflicts using DFA",
@@ -475,6 +478,11 @@ DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
         "Bound on size of expressions used in the scalar evolutions analyzer",
         100, 0, 0)
 
+DEFPARAM(PARAM_SCEV_MAX_EXPR_COMPLEXITY,
+        "scev-max-expr-complexity",
+        "Bound on the complexity of the expressions in the scalar evolutions analyzer",
+        10, 0, 0)
+
 DEFPARAM(PARAM_OMEGA_MAX_VARS,
         "omega-max-vars",
         "Bound on the number of variables in Omega constraint systems",
@@ -685,6 +693,12 @@ DEFPARAM(PARAM_MAX_SCHED_READY_INSNS,
         "The maximum number of instructions ready to be issued to be considered by the scheduler during the first scheduling pass",
         100, 0, 0)
 
+/* This is the maximum number of active local stores RTL DSE will consider.  */
+DEFPARAM (PARAM_MAX_DSE_ACTIVE_LOCAL_STORES,
+         "max-dse-active-local-stores",
+         "Maximum number of active local stores in RTL dead store elimination",
+         5000, 0, 0)
+
 /* Prefetching and cache-optimizations related parameters.  Default values are
    usually set by machine description.  */
 
@@ -848,13 +862,29 @@ DEFPARAM (PARAM_DEVIRT_TYPE_LIST_SIZE,
 
 DEFPARAM (PARAM_LTO_PARTITIONS,
          "lto-partitions",
-         "Number of paritions program should be split to",
-         32, 0, 0)
+         "Number of partitions the program should be split to",
+         32, 1, 0)
 
 DEFPARAM (MIN_PARTITION_SIZE,
          "lto-min-partition",
-         "Size of minimal paritition for WHOPR (in estimated instructions)",
+         "Minimal size of a partition for LTO (in estimated instructions)",
+         1000, 0, 0)
+
+/* Diagnostic parameters.  */
+
+DEFPARAM (CXX_MAX_NAMESPACES_FOR_DIAGNOSTIC_HELP,
+         "cxx-max-namespaces-for-diagnostic-help",
+         "Maximum number of namespaces to search for alternatives when "
+         "name lookup fails",
          1000, 0, 0)
+
+/* Maximum number of conditional store pairs that can be sunk.  */
+DEFPARAM (PARAM_MAX_STORES_TO_SINK,
+          "max-stores-to-sink",
+          "Maximum number of conditional store pairs that can be sunk",
+          2, 0, 0)
+
+
 /*
 Local variables:
 mode:c