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glsl2: Add and use new variable mode ir_var_temporary

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This is quite a large patch because breaking it into smaller pieces
would result in the tree being intermitently broken.  The big changes
are:

    * Add the ir_var_temporary variable mode

    * Change the ir_variable constructor to take the mode as a
      parameter and correctly specify the mode for all ir_varables.

    * Change the linker to not cross validate ir_var_temporary
      variables.

    * Change the linker to pull all ir_var_temporary variables from
      global scope into 'main'.
This commit is contained in:
Ian Romanick
2010-07-19 17:12:42 -07:00
parent 1124e5a3cb
commit 7e2aa91507
18 changed files with 109 additions and 47 deletions
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6
src/glsl/ir.cpp
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@@ -748,10 +748,12 @@ ir_swizzle::variable_referenced()
return this->val->variable_referenced();
}
ir_variable::ir_variable(const struct glsl_type *type, const char *name)
ir_variable::ir_variable(const struct glsl_type *type, const char *name,
ir_variable_mode mode)
: max_array_access(0), read_only(false), centroid(false), invariant(false),
shader_in(false), shader_out(false),
mode(ir_var_auto), interpolation(ir_var_smooth), array_lvalue(false)
mode(mode), interpolation(ir_var_smooth), array_lvalue(false)
{
this->ir_type = ir_type_variable;
this->type = type;