isl_tab_detect_implicit_equalities: also detect manifest equalities

[platform/upstream/isl.git] / isl_hash.c

diff --git a/isl_hash.c b/isl_hash.c
index 38c9e25..15df05a 100644 (file)
--- a/isl_hash.c
+++ b/isl_hash.c
@@ -42,7 +42,7 @@ int isl_hash_table_init(struct isl_ctx *ctx, struct isl_hash_table *table,
        table->bits = ffs(round_up(4 * (min_size + 1) / 3 - 1)) - 1;
        table->n = 0;
 
-       size = 2 << table->bits;
+       size = 1 << table->bits;
        table->entries = isl_calloc_array(ctx, struct isl_hash_table_entry,
                                          size);
        if (!table->entries)
@@ -59,7 +59,7 @@ static int grow_table(struct isl_ctx *ctx, struct isl_hash_table *table,
        uint32_t h;
 
        entries = table->entries;
-       old_size = 2 << table->bits;
+       old_size = 1 << table->bits;
        size = 2 * old_size;
        table->entries = isl_calloc_array(ctx, struct isl_hash_table_entry,
                                          size);
@@ -131,7 +131,7 @@ struct isl_hash_table_entry *isl_hash_table_find(struct isl_ctx *ctx,
        uint32_t h, key_bits;
 
        key_bits = isl_hash_bits(key_hash, table->bits);
-       size = 2 << table->bits;
+       size = 1 << table->bits;
        for (h = key_bits; table->entries[h].data; h = (h+1) % size)
                if (table->entries[h].hash == key_hash &&
                    eq(table->entries[h].data, val))
@@ -152,6 +152,21 @@ struct isl_hash_table_entry *isl_hash_table_find(struct isl_ctx *ctx,
        return &table->entries[h];
 }
 
+int isl_hash_table_foreach(struct isl_ctx *ctx,
+                               struct isl_hash_table *table,
+                               int (*fn)(void *entry))
+{
+       size_t size;
+       uint32_t h;
+
+       size = 1 << table->bits;
+       for (h = 0; h < size; ++ h)
+               if (table->entries[h].data && fn(table->entries[h].data) < 0)
+                       return -1;
+       
+       return 0;
+}
+
 void isl_hash_table_remove(struct isl_ctx *ctx,
                                struct isl_hash_table *table,
                                struct isl_hash_table_entry *entry)
@@ -162,7 +177,7 @@ void isl_hash_table_remove(struct isl_ctx *ctx,
        if (!table || !entry)
                return;
 
-       size = 2 << table->bits;
+       size = 1 << table->bits;
        h = entry - table->entries;
        isl_assert(ctx, h >= 0 && h < size, return);