ir_constant_expression: Initialize all components of constant data to 0.

This is probably just a good idea, and will come in useful when
implementing things like matrix multiplication.

diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 548217cddd969ee7c9cc8b8cfaf4053d645bfd27..1b81017698ebdb9571addb499bfcec258dba2495 100644 (file)
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -133,6 +133,8 @@ ir_constant_visitor::visit(ir_expression *ir)
    unsigned int operand, c;
    ir_constant_data data;
 
+   memset(&data, 0, sizeof(data));
+
    for (operand = 0; operand < ir->get_num_operands(); operand++) {
       op[operand] = ir->operands[operand]->constant_expression_value();
       if (!op[operand])