Handle constant expressions using derefs of const values.

Fixes CorrectParse1.frag and makes for a ton of folding in
CorrectParse2.frag.

1 files changed, 1 insertions, 0 deletions

diff --git a/ir.cpp b/ir.cpp
index 88308ce..0708e49 100644
--- a/ir.cpp
+++ b/ir.cpp
@@ -338,6 +338,7 @@ ir_variable::ir_variable(const struct glsl_type *type, const char *name)
 {
    this->type = type;
    this->name = name;
+   this->constant_value = NULL;
 
    if (type && type->base_type == GLSL_TYPE_SAMPLER)
       this->read_only = true;