Mesa (master): glsl: Mark path as unreachable.

[Matt Turner]

Module: Mesa
Branch: master
Commit: 8e414cbdec76ce33a16425631ac87cb4ba827409
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=8e414cbdec76ce33a16425631ac87cb4ba827409

Author: Matt Turner <mattst88 at gmail.com>
Date:   Sat Apr 11 10:11:13 2015 -0700

glsl: Mark path as unreachable.

---

 src/glsl/ast_function.cpp |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/glsl/ast_function.cpp b/src/glsl/ast_function.cpp
index 918be69..36a0d19 100644
--- a/src/glsl/ast_function.cpp
+++ b/src/glsl/ast_function.cpp
@@ -1791,7 +1791,7 @@ ast_function_expression::hir(exec_list *instructions,
       return value;
    }
 
-   return ir_rvalue::error_value(ctx);
+   unreachable("not reached");
 }
 
 ir_rvalue *