* doc/invoke.texi (l1-cache-size): Update documentation.

	(l2-cache-size): Document.
	* params.h (L2_CACHE_SIZE): New macro.
	* tree-ssa-loop-prefetch.c (L1_CACHE_SIZE_BYTES): Reflect
	that L1_CACHE_SIZE is in kB now.
	(L2_CACHE_SIZE_BYTES): New macro.
	(tree_ssa_prefetch_arrays): Show size in kB.
	* config/i386/i386.h (struct processor_costs): Add l1_cache_size
	and l2_cache_size fields.
	* config/i386/driver-i386.c (describe_cache): Detect cache size
	in kB.
	* config/i386/i386.c (size_cost, i386_cost, i486_cost,pentium_cost,
	pentiumpro_cost, geode_cost, k6_cost, athlon_cost, k8_cost,
	amdfam10_cost, pentium4_cost, nocona_cost, core2_cost,
	generic64_cost, generic32_cost): Add l1_cache_size and l2_cache_size.
	(override_options): Set l1-cache-size and l2-cache-size to default
	values if not specified otherwise.
	* params.def (PARAM_L1_CACHE_SIZE): Change to set in kB.
	(PARAM_L2_CACHE_SIZE): New.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127117 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 9 insertions, 2 deletions

diff --git a/gcc/params.def b/gcc/params.def
index e2817f8afee..32216764473 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -656,12 +656,12 @@ DEFPARAM (PARAM_SIMULTANEOUS_PREFETCHES,
 	  "The number of prefetches that can run at the same time",
 	  3, 0, 0)
 
-/* The size of L1 cache in number of cache lines.  */
+/* The size of L1 cache in kB.  */
 
 DEFPARAM (PARAM_L1_CACHE_SIZE,
 	  "l1-cache-size",
 	  "The size of L1 cache",
-	  1024, 0, 0)
+	  64, 0, 0)
 
 /* The size of L1 cache line in bytes.  */
 
@@ -670,6 +670,13 @@ DEFPARAM (PARAM_L1_CACHE_LINE_SIZE,
 	  "The size of L1 cache line",
 	  32, 0, 0)
 
+/* The size of L2 cache in kB.  */
+
+DEFPARAM (PARAM_L2_CACHE_SIZE,
+	  "l2-cache-size",
+	  "The size of L2 cache",
+	  512, 0, 0)
+
 /* Whether we should use canonical types rather than deep "structural"
    type checking.  Setting this value to 1 (the default) improves
    compilation performance in the C++ and Objective-C++ front end;