/* params.def - Run-time parameters.
Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- 2011
+ 2011, 2012
Free Software Foundation, Inc.
Written by Mark Mitchell <mark@codesourcery.com>.
/* INTEGER_CST nodes are shared for values [{-1,0} .. N) for
{signed,unsigned} integral types. This determines N.
- Experimentation shows 256 to be a good value. */
+ Experimentation shows 251 to be a good value that generates the
+ least amount of garbage for allocating the TREE_VEC storage. */
DEFPARAM (PARAM_INTEGER_SHARE_LIMIT,
"integer-share-limit",
"The upper bound for sharing integer constants",
- 256, 2, 2)
+ 251, 2, 2)
/* Incremental SSA updates for virtual operands may be very slow if
there is a large number of mappings to process. In those cases, it
"maximum number of basic blocks per function to be analyzed by Graphite",
100, 0, 0)
+/* Avoid data dependence analysis on very large loops. */
+DEFPARAM (PARAM_LOOP_MAX_DATAREFS_FOR_DATADEPS,
+ "loop-max-datarefs-for-datadeps",
+ "Maximum number of datarefs in loop for building loop data dependencies",
+ 1000, 0, 0)
+
/* Avoid doing loop invariant motion on very large loops. */
DEFPARAM (PARAM_LOOP_INVARIANT_MAX_BBS_IN_LOOP,
"a pointer to an aggregate with",
2, 0, 0)
+DEFPARAM (PARAM_TM_MAX_AGGREGATE_SIZE,
+ "tm-max-aggregate-size",
+ "Size in bytes after which thread-local aggregates should be "
+ "instrumented with the logging functions instead of save/restore "
+ "pairs",
+ 9, 0, 0)
+
DEFPARAM (PARAM_IPA_CP_VALUE_LIST_SIZE,
"ipa-cp-value-list-size",
"Maximum size of a list of values associated with each parameter for "
0, 0, 0)
/* Data race flags for C++0x memory model compliance. */
+DEFPARAM (PARAM_ALLOW_LOAD_DATA_RACES,
+ "allow-load-data-races",
+ "Allow new data races on loads to be introduced",
+ 1, 0, 1)
+
DEFPARAM (PARAM_ALLOW_STORE_DATA_RACES,
"allow-store-data-races",
"Allow new data races on stores to be introduced",
1, 0, 1)
+DEFPARAM (PARAM_ALLOW_PACKED_LOAD_DATA_RACES,
+ "allow-packed-load-data-races",
+ "Allow new data races on packed data loads to be introduced",
+ 1, 0, 1)
+
+DEFPARAM (PARAM_ALLOW_PACKED_STORE_DATA_RACES,
+ "allow-packed-store-data-races",
+ "Allow new data races on packed data stores to be introduced",
+ 1, 0, 1)
+
/* Reassociation width to be used by tree reassoc optimization. */
DEFPARAM (PARAM_TREE_REASSOC_WIDTH,
"tree-reassoc-width",