PR target/39942

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

diff --git a/gcc/params.def b/gcc/params.def
index 5e9a664..9b5db87 100644 (file)
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -1,5 +1,5 @@
 /* params.def - Run-time parameters.
-   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007 
+   Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
    Free Software Foundation, Inc.
    Written by Mark Mitchell <mark@codesourcery.com>.
 
@@ -139,6 +139,14 @@ DEFPARAM (PARAM_MIN_INLINE_RECURSIVE_PROBABILITY,
          "Inline recursively only when the probability of call being executed exceeds the parameter",
          10, 0, 0)
 
+/* Limit of iterations of early inliner.  This basically bounds number of
+   nested indirect calls early inliner can resolve.  Deeper chains are still
+   handled by late inlining.  */
+DEFPARAM (PARAM_EARLY_INLINER_MAX_ITERATIONS,
+         "max-early-inliner-iterations",
+         "The maximum number of nested indirect inlining performed by early inliner",
+         10, 0, 0)
+
 /* Limit the number of expansions created by the variable expansion
    optimization to avoid register pressure.  */
 DEFPARAM (PARAM_MAX_VARIABLE_EXPANSIONS,
@@ -223,11 +231,7 @@ DEFPARAM(PARAM_MAX_GCSE_MEMORY,
         "max-gcse-memory",
         "The maximum amount of memory to be allocated by GCSE",
         50 * 1024 * 1024, 0, 0)
-/* The number of repetitions of copy/const prop and PRE to run.  */
-DEFPARAM(PARAM_MAX_GCSE_PASSES,
-       "max-gcse-passes",
-       "The maximum number of passes to make when doing GCSE",
-       1, 1, 0)
+
 /* This is the threshold ratio when to perform partial redundancy
    elimination after reload. We perform partial redundancy elimination
    when the following holds:
@@ -537,16 +541,6 @@ DEFPARAM(PARAM_MAX_RELOAD_SEARCH_INSNS,
         "The maximum number of instructions to search backward when looking for equivalent reload",
         100, 0, 0)
 
-DEFPARAM(PARAM_MAX_ALIASED_VOPS,
-         "max-aliased-vops",
-        "The maximum number of virtual operators that a function is allowed to have before triggering memory partitioning heuristics",
-        100, 0, 0)
-
-DEFPARAM(PARAM_AVG_ALIASED_VOPS,
-        "avg-aliased-vops",
-        "The average number of virtual operators that memory statements are allowed to have before triggering memory partitioning heuristics",
-        1, 0, 0)
-
 DEFPARAM(PARAM_MAX_SCHED_REGION_BLOCKS,
         "max-sched-region-blocks",
         "The maximum number of blocks in a region to be considered for interblock scheduling",
@@ -557,6 +551,16 @@ DEFPARAM(PARAM_MAX_SCHED_REGION_INSNS,
         "The maximum number of insns in a region to be considered for interblock scheduling",
         100, 0, 0)
 
+DEFPARAM(PARAM_MAX_PIPELINE_REGION_BLOCKS,
+        "max-pipeline-region-blocks",
+        "The maximum number of blocks in a region to be considered for interblock scheduling",
+        15, 0, 0)
+
+DEFPARAM(PARAM_MAX_PIPELINE_REGION_INSNS,
+        "max-pipeline-region-insns",
+        "The maximum number of insns in a region to be considered for interblock scheduling",
+        200, 0, 0)
+
 DEFPARAM(PARAM_MIN_SPEC_PROB,
          "min-spec-prob",
          "The minimum probability of reaching a source block for interblock speculative scheduling",
@@ -577,6 +581,26 @@ DEFPARAM(PARAM_SCHED_SPEC_PROB_CUTOFF,
          "The minimal probability of speculation success (in percents), so that speculative insn will be scheduled.",
          40, 0, 100)
 
+DEFPARAM(PARAM_SELSCHED_MAX_LOOKAHEAD,
+         "selsched-max-lookahead",
+         "The maximum size of the lookahead window of selective scheduling",
+         50, 0, 0)
+
+DEFPARAM(PARAM_SELSCHED_MAX_SCHED_TIMES,
+         "selsched-max-sched-times",
+         "Maximum number of times that an insn could be scheduled",
+         2, 0, 0)
+
+DEFPARAM(PARAM_SELSCHED_INSNS_TO_RENAME,
+         "selsched-insns-to-rename",
+         "Maximum number of instructions in the ready list that are considered eligible for renaming",
+         2, 0, 0)
+
+DEFPARAM (PARAM_SCHED_MEM_TRUE_DEP_COST,
+         "sched-mem-true-dep-cost",
+         "Minimal distance between possibly conflicting store and load",
+         1, 0, 0)
+
 DEFPARAM(PARAM_MAX_LAST_VALUE_RTL,
         "max-last-value-rtl",
         "The maximum number of RTL nodes that can be recorded as combiner's last value",
@@ -715,16 +739,15 @@ DEFPARAM (PARAM_SCCVN_MAX_SCC_SIZE,
          "Maximum size of a SCC before SCCVN stops processing a function",
          10000, 10, 0)
 
-
-DEFPARAM (PARAM_DF_DOUBLE_QUEUE_THRESHOLD_FACTOR,
-         "df-double-queue-threshold-factor",
-         "Multiplier used for determining the double-queueing threshold",
-         2, 0, 0)
-
 DEFPARAM (PARAM_IRA_MAX_LOOPS_NUM,
          "ira-max-loops-num",
          "max loops number for regional RA",
-         50, 0, 0)
+         100, 0, 0)
+
+DEFPARAM (PARAM_IRA_MAX_CONFLICT_TABLE_SIZE,
+         "ira-max-conflict-table-size",
+         "max size of conflict table in MB",
+         1000, 0, 0)
 
 /* Switch initialization conversion will refuse to create arrays that are
    bigger than this parameter times the number of switch branches.  */
@@ -735,6 +758,13 @@ DEFPARAM (PARAM_SWITCH_CONVERSION_BRANCH_RATIO,
          "a switch conversion to take place",
          8, 1, 0)
 
+/* Avoid doing loop invariant motion on very large loops.  */
+
+DEFPARAM (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP,
+         "loop-invariant-max-bbs-in-loop",
+         "max basic blocks number in loop for loop invariant motion",
+         10000, 0, 0)
+
 /*
 Local variables:
 mode:c