* config/avr/avr.h (PREFERRED_RELOAD_CLASS): Remove.

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

diff --git a/gcc/params.def b/gcc/params.def
index 767ecd9..49a6185 100644 (file)
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -225,6 +225,29 @@ DEFPARAM(PARAM_GCSE_AFTER_RELOAD_CRITICAL_FRACTION,
        "gcse-after-reload-critical-fraction",
        "The threshold ratio of critical edges execution count that permit performing redundancy elimination after reload",
         10, 0, 0)
+
+/* GCSE will use GCSE_COST_DISTANCE_RATION as a scaling factor
+   to calculate maximum distance for which an expression is allowed to move
+   from its rtx_cost.  */
+DEFPARAM(PARAM_GCSE_COST_DISTANCE_RATIO,
+        "gcse-cost-distance-ratio",
+        "Scaling factor in calculation of maximum distance an expression can be moved by GCSE optimizations",
+        10, 0, 0)
+/* GCSE won't restrict distance for which an expression with rtx_cost greater
+   than COSTS_N_INSN(GCSE_UNRESTRICTED_COST) is allowed to move.  */
+DEFPARAM(PARAM_GCSE_UNRESTRICTED_COST,
+        "gcse-unrestricted-cost",
+        "Cost at which GCSE optimizations will not constraint the distance an expression can travel",
+        3, 0, 0)
+
+/* How deep from a given basic block the dominator tree should be searched
+   for expressions to hoist to the block.  The value of 0 will avoid limiting
+   the search.  */
+DEFPARAM(PARAM_MAX_HOIST_DEPTH,
+        "max-hoist-depth",
+        "Maximum depth of search in the dominator tree for expressions to hoist",
+        30, 0, 0)
+
 /* This parameter limits the number of insns in a loop that will be unrolled,
    and by how much the loop is unrolled.
 
@@ -444,7 +467,7 @@ DEFPARAM(PARAM_IV_ALWAYS_PRUNE_CAND_SET_BOUND,
 DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
         "scev-max-expr-size",
         "Bound on size of expressions used in the scalar evolutions analyzer",
-        20, 0, 0)
+        100, 0, 0)
 
 DEFPARAM(PARAM_OMEGA_MAX_VARS,
         "omega-max-vars",
@@ -809,6 +832,23 @@ DEFPARAM (PARAM_IPA_SRA_PTR_GROWTH_FACTOR,
          "a pointer to an aggregate with",
          2, 0, 0)
 
+DEFPARAM (PARAM_DEVIRT_TYPE_LIST_SIZE,
+         "devirt-type-list-size",
+         "Maximum size of a type list associated with each parameter for "
+         "devirtualization",
+         8, 0, 0)
+
+/* WHOPR partitioning configuration.  */
+
+DEFPARAM (PARAM_LTO_PARTITIONS,
+         "lto-partitions",
+         "Number of paritions program should be split to",
+         32, 0, 0)
+
+DEFPARAM (MIN_PARTITION_SIZE,
+         "lto-min-partition",
+         "Size of minimal paritition for WHOPR (in estimated instructions)",
+         1000, 0, 0)
 /*
 Local variables:
 mode:c