From 0e0fe093f2deddabb359fc32a0763cc3acec0544 Mon Sep 17 00:00:00 2001
From: Frederic Crozat <fcrozat@mandriva.com>
Date: Thu, 5 Mar 2009 13:53:40 +0100
Subject: [PATCH] cachegrind

---
 cachegrind/cg_sim.c |   26 +++++++++++++-------------
 1 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/cachegrind/cg_sim.c b/cachegrind/cg_sim.c
index 25bef49..1345211 100644
--- a/cachegrind/cg_sim.c
+++ b/cachegrind/cg_sim.c
@@ -46,23 +46,27 @@ typedef struct {
    Int          sets_min_1;
    Int          line_size_bits;
    Int          tag_shift;
-   Char         desc_line[128];
    UWord*       tags;
-} cache_t2;
+   Char         desc_line[128];
+} cache_t2
+#ifdef __GNUC__
+__attribute__ ((aligned (8 * sizeof (Int))))
+#endif
+;
 
 /* By this point, the size/assoc/line_size has been checked. */
 static void cachesim_initcache(cache_t config, cache_t2* c)
 {
-   Int i;
+   Int sets;
 
    c->size      = config.size;
    c->assoc     = config.assoc;
    c->line_size = config.line_size;
 
-   c->sets           = (c->size / c->line_size) / c->assoc;
-   c->sets_min_1     = c->sets - 1;
+   sets              = (c->size / c->line_size) / c->assoc;
+   c->sets_min_1     = sets - 1;
    c->line_size_bits = VG_(log2)(c->line_size);
-   c->tag_shift      = c->line_size_bits + VG_(log2)(c->sets);
+   c->tag_shift      = c->line_size_bits + VG_(log2)(sets);
 
    if (c->assoc == 1) {
       VG_(sprintf)(c->desc_line, "%d B, %d B, direct-mapped", 
@@ -72,11 +76,8 @@ static void cachesim_initcache(cache_t config, cache_t2* c)
                                  c->size, c->line_size, c->assoc);
    }
 
-   c->tags = VG_(malloc)("cg.sim.ci.1",
-                         sizeof(UWord) * c->sets * c->assoc);
-
-   for (i = 0; i < c->sets * c->assoc; i++)
-      c->tags[i] = 0;
+   c->tags = VG_(calloc)("cg.sim.ci.1",
+                         sizeof(UWord), sets * c->assoc);
 }
 
 /* This is done as a macro rather than by passing in the cache_t2 as an 
@@ -138,8 +139,7 @@ void cachesim_##L##_doref(Addr a, UChar size, ULong* m1, ULong *m2)         \
       return;                                                               \
                                                                             \
    /* Second case: word straddles two lines. */                             \
-   /* Nb: this is a fast way of doing ((set1+1) % L.sets) */                \
-   } else if (((set1 + 1) & (L.sets-1)) == set2) {                          \
+   } else if (((set1 + 1) & (L.sets_min_1)) == set2) {                      \
       set = &(L.tags[set1 * L.assoc]);                                      \
       if (tag == set[0]) {                                                  \
          goto block2;                                                       \
-- 
1.6.1.3