[Mesa-dev] [PATCH 2/3] glsl: Add shared variable type

[Jordan Justen]

Shared variables are stored in a common pool accessible by all threads
in a compute shader local work group.

These variables are similar to OpenCL's local/__local variables.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
---
 src/glsl/ir.h                 | 15 ++++++++-------
 src/glsl/ir_print_visitor.cpp |  4 ++--
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/src/glsl/ir.h b/src/glsl/ir.h
index 9c9f22d..32a766e 100644
--- a/src/glsl/ir.h
+++ b/src/glsl/ir.h
@@ -322,18 +322,19 @@ protected:
  * Variable storage classes
  */
 enum ir_variable_mode {
-   ir_var_auto = 0,     /**< Function local variables and globals. */
-   ir_var_uniform,      /**< Variable declared as a uniform. */
-   ir_var_shader_storage,   /**< Variable declared as an ssbo. */
+   ir_var_auto = 0,             /**< Function local variables and globals. */
+   ir_var_uniform,              /**< Variable declared as a uniform. */
+   ir_var_shader_storage,       /**< Variable declared as an ssbo. */
+   ir_var_shader_shared,        /**< Variable declared as shared. */
    ir_var_shader_in,
    ir_var_shader_out,
    ir_var_function_in,
    ir_var_function_out,
    ir_var_function_inout,
-   ir_var_const_in,	/**< "in" param that must be a constant expression */
-   ir_var_system_value, /**< Ex: front-face, instance-id, etc. */
-   ir_var_temporary,	/**< Temporary variable generated during compilation. */
-   ir_var_mode_count	/**< Number of variable modes */
+   ir_var_const_in,             /**< "in" param that must be a constant expression */
+   ir_var_system_value,         /**< Ex: front-face, instance-id, etc. */
+   ir_var_temporary,            /**< Temporary variable generated during compilation. */
+   ir_var_mode_count            /**< Number of variable modes */
 };
 
 /**
diff --git a/src/glsl/ir_print_visitor.cpp b/src/glsl/ir_print_visitor.cpp
index b919690..42b03fd 100644
--- a/src/glsl/ir_print_visitor.cpp
+++ b/src/glsl/ir_print_visitor.cpp
@@ -173,8 +173,8 @@ void ir_print_visitor::visit(ir_variable *ir)
    const char *const samp = (ir->data.sample) ? "sample " : "";
    const char *const patc = (ir->data.patch) ? "patch " : "";
    const char *const inv = (ir->data.invariant) ? "invariant " : "";
-   const char *const mode[] = { "", "uniform ", "shader_storage",
-                                "shader_in ", "shader_out ",
+   const char *const mode[] = { "", "uniform ", "shader_storage ",
+                                "shader_shared ", "shader_in ", "shader_out ",
                                 "in ", "out ", "inout ",
 			        "const_in ", "sys ", "temporary " };
    STATIC_ASSERT(ARRAY_SIZE(mode) == ir_var_mode_count);
-- 
2.6.2