Mesa (glsl2): glsl2: Steal ir_variable's constant_value field.

[Eric Anholt]

Module: Mesa
Branch: glsl2
Commit: eb2cc4f1b1f5ac657c632aa41da5f23eb1cdbe10
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=eb2cc4f1b1f5ac657c632aa41da5f23eb1cdbe10

Author: Kenneth Graunke <kenneth at whitecape.org>
Date:   Fri Jul 23 12:49:17 2010 -0700

glsl2: Steal ir_variable's constant_value field.

Fixes a link-time crash in glsl-vs-cross-3.

---

 src/glsl/ir.cpp |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/src/glsl/ir.cpp b/src/glsl/ir.cpp
index 8ebef7d..2fd654e 100644
--- a/src/glsl/ir.cpp
+++ b/src/glsl/ir.cpp
@@ -908,6 +908,9 @@ visit_exec_list(exec_list *list, ir_visitor *visitor)
 static void
 steal_memory(ir_instruction *ir, void *new_ctx)
 {
+   ir_variable *var = ir->as_variable();
+   if (var != NULL && var->constant_value != NULL)
+      talloc_steal(ir, var->constant_value);
    talloc_steal(new_ctx, ir);
 }