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

diff --git a/gcc/params.def b/gcc/params.def
index 1428b48..3ac4597 100644 (file)
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -22,7 +22,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 */
 
 /* This file contains definitions for language-independent
-   parameters.  The DEFPARAM macro takes 4 arguments:
+   parameters.  The DEFPARAM macro takes 6 arguments:
 
      - The enumeral corresponding to this parameter.
 
@@ -33,6 +33,11 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 
      - A default value for the parameter.
 
+     - The minimum acceptable value for the parameter.
+
+     - The maximum acceptable value for the parameter (if greater than
+     the minimum).
+
    Be sure to add an entry to invoke.texi summarizing the parameter.  */
 
 /* The maximum number of fields in a variable with only implicit uses
@@ -49,14 +54,25 @@ DEFPARAM (PARAM_SALIAS_MAX_IMPLICIT_FIELDS,
    itself.  */
 DEFPARAM (PARAM_SRA_MAX_STRUCTURE_SIZE,
          "sra-max-structure-size",
-         "The maximum structure size (in bytes) at which GCC will do block copies",
+         "The maximum structure size (in bytes) for which GCC will "
+         "use by-element copies",
+         0, 0, 0)
+
+/* The maximum number of structure fields which the SRA pass will
+   instantiate to avoid block copies.  The default value, 0, implies
+   that GCC will select the appropriate value itself.  */
+DEFPARAM (PARAM_SRA_MAX_STRUCTURE_COUNT,
+         "sra-max-structure-count",
+         "The maximum number of structure fields for which GCC will "
+         "use by-element copies",
          0, 0, 0)
 
 /* The ratio between instantiated fields and the complete structure
    size.  We say that if the ratio of the number of bytes in
    instantiated fields to the number of bytes in the complete
-   structure exceeds this parameter, then block copies are not used.
-   The default is 75%.  */
+   structure exceeds this parameter, or if the number of instantiated
+   fields to the total number of fields exceeds this parameter, then
+   block copies are not used.  The default is 75%.  */
 DEFPARAM (PARAM_SRA_FIELD_STRUCTURE_RATIO,
          "sra-field-structure-ratio",
          "The threshold ratio between instantiated fields and the total structure size",
@@ -111,6 +127,11 @@ DEFPARAM (PARAM_MAX_INLINE_RECURSIVE_DEPTH_AUTO,
          "The maximum depth of recursive inlining for non-inline functions",
          8, 0, 0)
 
+DEFPARAM (PARAM_MIN_INLINE_RECURSIVE_PROBABILITY,
+         "min-inline-recursive-probability",
+         "Inline recursively only when the probability of call being executed exceeds the parameter",
+         10, 0, 0)
+
 /* Limit the number of expansions created by the variable expansion
    optimization to avoid register pressure.  */
 DEFPARAM (PARAM_MAX_VARIABLE_EXPANSIONS,
@@ -377,6 +398,11 @@ DEFPARAM(PARAM_SCEV_MAX_EXPR_SIZE,
         "Bound on size of expressions used in the scalar evolutions analyzer",
         20, 0, 0)
 
+DEFPARAM(PARAM_VECT_MAX_VERSION_CHECKS,
+         "vect-max-version-checks",
+         "Bound on number of runtime checks inserted by the vectorizer's loop versioning",
+         6, 0, 0)
+
 /* The product of the next two is used to decide whether or not to
    use .GLOBAL_VAR.  See tree-dfa.c.  */
 DEFPARAM(PARAM_GLOBAL_VAR_THRESHOLD,
@@ -430,6 +456,11 @@ 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_MIN_SPEC_PROB,
+         "min-spec-prob",
+         "The minimum probability of reaching a source block for interblock speculative scheduling",
+         40, 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",