glsl: Add compute to _mesa_shader_stage_to_string(); use unreachable.

This is basically Ian's review feedback for my patch that added
_mesa_shader_stage_to_abbrev() - it just makes both consistent again.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

diff --git a/src/glsl/glsl_parser_extras.cpp b/src/glsl/glsl_parser_extras.cpp
index 2e44dc1..9f79313 100644 (file)
--- a/src/glsl/glsl_parser_extras.cpp
+++ b/src/glsl/glsl_parser_extras.cpp
@@ -370,10 +370,10 @@ _mesa_shader_stage_to_string(unsigned stage)
    case MESA_SHADER_VERTEX:   return "vertex";
    case MESA_SHADER_FRAGMENT: return "fragment";
    case MESA_SHADER_GEOMETRY: return "geometry";
+   case MESA_SHADER_COMPUTE:  return "compute";
    }
 
-   assert(!"Should not get here.");
-   return "unknown";
+   unreachable("Unknown shader stage.");
 }
 
 /**