Mesa (glsl2): ir_constant_expression: Initialize all components of constant data to 0.

[Ian Romanick]

Module: Mesa
Branch: glsl2
Commit: c63a1db81f56cc2021fe1fb2411c327f720b0e09
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c63a1db81f56cc2021fe1fb2411c327f720b0e09

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Mon Jul  5 22:33:35 2010 -0700

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.

---

 src/glsl/ir_constant_expression.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 548217c..1b81017 100644
--- 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])