mesa: remove LowerShaderSharedVariables

always true for compute shaders

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/compiler/glsl/linker.cpp

@@ -4678,7 +4678,7 @@ link_varyings_and_uniforms(unsigned first, unsigned last,
          lower_ubo_reference(prog->_LinkedShaders[i],
                              options->ClampBlockIndicesToArrayBounds);
 
-      if (options->LowerShaderSharedVariables)
+      if (i == MESA_SHADER_COMPUTE)
          lower_shared_reference(prog->_LinkedShaders[i],
                                 &prog->Comp.SharedSize);
 

src/mesa/drivers/dri/i965/brw_compiler.c

@@ -156,8 +156,5 @@ brw_compiler_create(void *mem_ctx, const struct gen_device_info *devinfo)
    if (compiler->scalar_stage[MESA_SHADER_GEOMETRY])
       compiler->glsl_compiler_options[MESA_SHADER_GEOMETRY].EmitNoIndirectInput = false;
 
-   compiler->glsl_compiler_options[MESA_SHADER_COMPUTE]
-      .LowerShaderSharedVariables = true;
-
    return compiler;
 }

src/mesa/main/mtypes.h

@@ -2938,9 +2938,6 @@ struct gl_shader_compiler_options
    /** Clamp UBO and SSBO block indices so they don't go out-of-bounds. */
    GLboolean ClampBlockIndicesToArrayBounds;
 
-   GLboolean LowerShaderSharedVariables; /**< Lower compute shader shared
-                                          *   variable access to intrinsics. */
-
    const struct nir_shader_compiler_options *NirOptions;
 };
 

src/mesa/state_tracker/st_extensions.c

@@ -308,9 +308,6 @@ void st_init_limits(struct pipe_screen *screen,
 
       options->LowerCombinedClipCullDistance = true;
       options->LowerBufferInterfaceBlocks = true;
-
-      if (sh == PIPE_SHADER_COMPUTE)
-         options->LowerShaderSharedVariables = true;
    }
 
    c->LowerTessLevel = true;