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-rw-r--r--src/compiler/glsl/ast_to_hir.cpp7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/compiler/glsl/ast_to_hir.cpp b/src/compiler/glsl/ast_to_hir.cpp
index e162203c1c8..29a4642af2c 100644
--- a/src/compiler/glsl/ast_to_hir.cpp
+++ b/src/compiler/glsl/ast_to_hir.cpp
@@ -1901,6 +1901,13 @@ ast_expression::do_hir(exec_list *instructions,
if (var != NULL) {
var->data.used = true;
result = new(ctx) ir_dereference_variable(var);
+
+ if ((var->data.mode == ir_var_auto || var->data.mode == ir_var_shader_out)
+ && !this->is_lhs
+ && result->variable_referenced()->data.assigned != true) {
+ _mesa_glsl_warning(&loc, state, "`%s' used uninitialized",
+ this->primary_expression.identifier);
+ }
} else {
_mesa_glsl_error(& loc, state, "`%s' undeclared",
this->primary_expression.identifier);