glsl: Generate compile errors for explicit blend indices < 0 or > 1.

[mesa.git] / src / glsl / lower_if_to_cond_assign.cpp

diff --git a/src/glsl/lower_if_to_cond_assign.cpp b/src/glsl/lower_if_to_cond_assign.cpp
index 7b89a1539cefa07df7a869a254deac7ac31277c9..2c5d5612d0d805783ef8ad895c9ba0b80cebfb6b 100644 (file)
--- a/src/glsl/lower_if_to_cond_assign.cpp
+++ b/src/glsl/lower_if_to_cond_assign.cpp
@@ -79,6 +79,9 @@ public:
 bool
 lower_if_to_cond_assign(exec_list *instructions, unsigned max_depth)
 {
+   if (max_depth == UINT_MAX)
+      return false;
+
    ir_if_to_cond_assign_visitor v(max_depth);
 
    visit_list_elements(&v, instructions);