[Mesa-dev] [PATCH] glsl: add null pointer check in print_without_declaration()

[Brian Paul]

To avoid/fix a segmentation fault when running the stand-alone GLSL
compiler utility for cases such as the Mesa demos toyball test:

glsl_compiler --dump-builder --version 120 CH11-toyball.vert CH11-toyball.frag
---
 src/compiler/glsl/ir_builder_print_visitor.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/compiler/glsl/ir_builder_print_visitor.cpp b/src/compiler/glsl/ir_builder_print_visitor.cpp
index 825dbe1..164a237 100644
--- a/src/compiler/glsl/ir_builder_print_visitor.cpp
+++ b/src/compiler/glsl/ir_builder_print_visitor.cpp
@@ -581,7 +581,9 @@ ir_builder_print_visitor::print_without_declaration(const ir_expression *ir)
          const struct hash_entry *const he =
             _mesa_hash_table_search(index_map, ir->operands[i]);
 
-         print_without_indent("r%04X", (unsigned)(uintptr_t) he->data);
+         if (he) {
+            print_without_indent("r%04X", (unsigned)(uintptr_t) he->data);
+         }
       }
 
       if (i < num_op - 1)
-- 
1.9.1