glsl: Add tracking for elements of an array-of-arrays that have been accessed

If there's a better way to provide access to ir_array_refcount_entry
private members to the test functions, I am very interested to know
about it.

Signed-off-by: Ian Romanick <[email protected]>
Cc: Francisco Jerez <[email protected]>
Cc: [email protected]
Reviewed-by: Kenneth Graunke <[email protected]>

1 files changed, 9 insertions, 1 deletions

diff --git a/src/compiler/glsl/ir_array_refcount.cpp b/src/compiler/glsl/ir_array_refcount.cpp
index b997d415d1d..36b22742fa8 100644
--- a/src/compiler/glsl/ir_array_refcount.cpp
+++ b/src/compiler/glsl/ir_array_refcount.cpp
@@ -56,7 +56,15 @@ ir_array_refcount_visitor::~ir_array_refcount_visitor()
 ir_array_refcount_entry::ir_array_refcount_entry(ir_variable *var)
    : var(var), is_referenced(false)
 {
-   /* empty */
+   num_bits = MAX2(1, var->type->arrays_of_arrays_size());
+   bits = new BITSET_WORD[BITSET_WORDS(num_bits)];
+   memset(bits, 0, BITSET_WORDS(num_bits) * sizeof(bits[0]));
+}
+
+
+ir_array_refcount_entry::~ir_array_refcount_entry()
+{
+   delete [] bits;
 }