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i965: Don't do vector splitting for ir_var_system_value

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This is required while adding builtin system value vec{2, 3, 4}
variables. For example:
(declare (sys) vec2 gl_SamplePosition)

Without this patch above glsl ir splits in to:
(declare (temporary) float gl_SamplePosition_x)
(declare (temporary) float gl_SamplePosition_y)

Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Anuj Phogat
2013-10-22 12:00:11 -07:00
parent 627b2692e9
commit 81f5fb352a
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_fs_vector_splitting.cpp
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@@ -111,6 +111,7 @@ ir_vector_reference_visitor::get_variable_entry(ir_variable *var)
case ir_var_uniform:
case ir_var_shader_in:
case ir_var_shader_out:
case ir_var_system_value:
case ir_var_function_in:
case ir_var_function_out:
case ir_var_function_inout: