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--- gcc-4.6.0/gcc/params.def-orig 2011-06-16 11:39:42.412634260 -0500
+++ gcc-4.6.0/gcc/params.def 2011-06-16 11:41:29.457630886 -0500
@@ -39,6 +39,11 @@
Be sure to add an entry to invoke.texi summarizing the parameter. */
+DEFPARAM (PARAM_CASE_VALUES_THRESHOLD,
+ "case-values-threshold",
+ "Minimum number of case statements for each a jump table will be used",
+ 4, 4, 1000)
+
/* The threshold ratio between current and hottest structure counts.
We say that if the ratio of the current structure count,
calculated by profiling, to the hottest structure count
--- gcc-4.6.0/gcc/config/rs6000/rs6000.c-orig 2011-06-16 12:24:03.440630751 -0500
+++ gcc-4.6.0/gcc/config/rs6000/rs6000.c 2011-06-16 12:24:51.450630163 -0500
@@ -1282,6 +1282,7 @@
struct cl_target_option *);
static bool rs6000_can_inline_p (tree, tree);
static void rs6000_set_current_function (tree);
+static unsigned int rs6000_case_values_threshold (void);
/* Default register names. */
--- gcc-4.6.0/gcc/config/rs6000/rs6000.c-orig 2011-06-16 11:18:27.131631000 -0500
+++ gcc-4.6.0/gcc/config/rs6000/rs6000.c 2011-06-16 11:38:15.225631714 -0500
@@ -1704,6 +1704,9 @@
#undef TARGET_SET_CURRENT_FUNCTION
#define TARGET_SET_CURRENT_FUNCTION rs6000_set_current_function
+#undef TARGET_CASE_VALUES_THRESHOLD
+#define TARGET_CASE_VALUES_THRESHOLD rs6000_case_values_threshold
+
struct gcc_target targetm = TARGET_INITIALIZER;
@@ -28179,6 +28182,12 @@
}
+static unsigned int
+rs6000_case_values_threshold (void)
+{
+ return PARAM_VALUE (PARAM_CASE_VALUES_THRESHOLD);
+}
+
/* Save the current options */
static void
--- gcc-4.6.0/gcc/config/rs6000/rs6000.c-orig 2011-06-17 12:19:00.463631000 -0500
+++ gcc-4.6.0/gcc/config/rs6000/rs6000.c 2011-06-17 12:06:28.904630840 -0500
@@ -2906,6 +2906,13 @@
if (rs6000_block_move_inline_limit < (TARGET_POWERPC64 ? 64 : 32))
rs6000_block_move_inline_limit = (TARGET_POWERPC64 ? 64 : 32);
+ if ((rs6000_cpu == PROCESSOR_PPC8540
+ || rs6000_cpu == PROCESSOR_PPCE500MC
+ || rs6000_cpu == PROCESSOR_PPCE5500
+ || rs6000_cpu == PROCESSOR_PPCE6500)
+ && global_options_set.x_param_values[(int) PARAM_CASE_VALUES_THRESHOLD] != true)
+ global_options.x_param_values[(int) PARAM_CASE_VALUES_THRESHOLD] = 8;
+
if (global_init_p)
{
/* If the appropriate debug option is enabled, replace the target hooks
|
