re PR rtl-optimization/28173 (misses constant folding)

[platform/upstream/gcc.git] / gcc / params.def

diff --git a/gcc/params.def b/gcc/params.def
index 142b19e..e583025 100644 (file)
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -146,6 +146,12 @@ DEFPARAM (PARAM_MAX_VARIABLE_EXPANSIONS,
          "If -fvariable-expansion-in-unroller is used, the maximum number of times that an individual variable will be expanded during loop unrolling",
           1, 0, 0)
      
+/* Limit loop autovectorization to loops with large enough iteration count.  */
+DEFPARAM (PARAM_MIN_VECT_LOOP_BOUND,
+         "min-vect-loop-bound",
+         "If -ftree-vectorize is used, the minimal loop bound of a loop to be considered for vectorization",
+         0, 0, 0)
+
 /* The maximum number of instructions to consider when looking for an
    instruction to fill a delay slot.  If more than this arbitrary
    number of instructions is searched, the time savings from filling
@@ -193,7 +199,7 @@ DEFPARAM(PARAM_LARGE_UNIT_INSNS,
 DEFPARAM(PARAM_INLINE_UNIT_GROWTH,
         "inline-unit-growth",
         "how much can given compilation unit grow because of the inlining (in percent)",
-        50, 0, 0)
+        30, 0, 0)
 DEFPARAM(PARAM_INLINE_CALL_COST,
         "inline-call-cost",
         "expense of call operation relative to ordinary arithmetic operations",
@@ -451,13 +457,6 @@ DEFPARAM(PARAM_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,
-       "global-var-threshold",
-       "Given N calls and V call-clobbered vars in a function.  Use .GLOBAL_VAR if NxV is larger than this limit",
-       500000, 0, 0)
-
 DEFPARAM(PARAM_MAX_CSELIB_MEMORY_LOCATIONS,
         "max-cselib-memory-locations",
         "The maximum memory locations recorded by cselib",
@@ -495,8 +494,8 @@ DEFPARAM(PARAM_MAX_RELOAD_SEARCH_INSNS,
 
 DEFPARAM(PARAM_MAX_ALIASED_VOPS,
          "max-aliased-vops",
-        "The maximum number of virtual operands allowed to represent aliases before triggering alias grouping",
-        500, 0, 0)
+        "The maximum number of virtual operators per statement allowed to represent aliases before triggering alias grouping",
+        10, 0, 0)
 
 DEFPARAM(PARAM_MAX_SCHED_REGION_BLOCKS,
         "max-sched-region-blocks",
@@ -633,6 +632,19 @@ DEFPARAM (PARAM_L1_CACHE_LINE_SIZE,
          "The size of L1 cache line",
          32, 0, 0)
 
+#ifdef ENABLE_CHECKING
+# define GCC_CANONICAL_TYPES_DEFAULT 1
+#else
+# define GCC_CANONICAL_TYPES_DEFAULT 0
+#endif
+
+/* Whether we should verify that the canonical types in the system are
+   consistent with the "structural" typing. */
+
+DEFPARAM (PARAM_VERIFY_CANONICAL_TYPES,
+         "verify-canonical-types",
+         "Whether to verify canonical types",
+         GCC_CANONICAL_TYPES_DEFAULT, 0, 1)
 /*
 Local variables:
 mode:c