From 46cb04410da4ba4fa10070a0eec7a037ff6152a7 Mon Sep 17 00:00:00 2001 From: Zdenek Dvorak Date: Wed, 1 Aug 2007 12:57:03 +0200 Subject: invoke.texi (l1-cache-size): Update documentation. * 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. From-SVN: r127117 --- gcc/tree-ssa-loop-prefetch.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'gcc/tree-ssa-loop-prefetch.c') diff --git a/gcc/tree-ssa-loop-prefetch.c b/gcc/tree-ssa-loop-prefetch.c index 0fada55..28cd322 100644 --- a/gcc/tree-ssa-loop-prefetch.c +++ b/gcc/tree-ssa-loop-prefetch.c @@ -166,9 +166,8 @@ along with GCC; see the file COPYING3. If not see #define HAVE_prefetch 0 #endif -#define L1_CACHE_SIZE_BYTES ((unsigned) (L1_CACHE_SIZE * L1_CACHE_LINE_SIZE)) -/* TODO: Add parameter to specify L2 cache size. */ -#define L2_CACHE_SIZE_BYTES (8 * L1_CACHE_SIZE_BYTES) +#define L1_CACHE_SIZE_BYTES ((unsigned) (L1_CACHE_SIZE * 1024)) +#define L2_CACHE_SIZE_BYTES ((unsigned) (L2_CACHE_SIZE * 1024)) /* We consider a memory access nontemporal if it is not reused sooner than after L2_CACHE_SIZE_BYTES of memory are accessed. However, we ignore @@ -1549,10 +1548,10 @@ tree_ssa_prefetch_arrays (void) SIMULTANEOUS_PREFETCHES); fprintf (dump_file, " prefetch latency: %d\n", PREFETCH_LATENCY); fprintf (dump_file, " prefetch block size: %d\n", PREFETCH_BLOCK); - fprintf (dump_file, " L1 cache size: %d lines, %d bytes\n", - L1_CACHE_SIZE, L1_CACHE_SIZE_BYTES); + fprintf (dump_file, " L1 cache size: %d lines, %d kB\n", + L1_CACHE_SIZE_BYTES / L1_CACHE_LINE_SIZE, L1_CACHE_SIZE); fprintf (dump_file, " L1 cache line size: %d\n", L1_CACHE_LINE_SIZE); - fprintf (dump_file, " L2 cache size: %d bytes\n", L2_CACHE_SIZE_BYTES); + fprintf (dump_file, " L2 cache size: %d kB\n", L2_CACHE_SIZE); fprintf (dump_file, "\n"); } -- cgit v1.1