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glsl: Fix up some comments in structure splitting, based on array-split work.

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Eric Anholt 2012-04-16 09:52:45 -07:00
parent 6de5da0796
commit 86f270e0a9
1 changed files with 8 additions and 3 deletions
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11
src/glsl/opt_structure_splitting.cpp
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@ -61,7 +61,11 @@ public:
/** Number of times the variable is referenced, including assignments. */
unsigned whole_structure_access;
bool declaration; /* If the variable had a decl in the instruction stream */
/* If the variable had a decl we can work with in the instruction
* stream. We can't do splitting on function arguments, which
* don't get this variable set.
*/
bool declaration;
ir_variable **components;
@ -171,8 +175,9 @@ ir_structure_reference_visitor::visit_enter(ir_assignment *ir)
ir_visitor_status
ir_structure_reference_visitor::visit_enter(ir_function_signature *ir)
{
/* We don't want to descend into the function parameters and
* dead-code eliminate them, so just accept the body here.
/* We don't have logic for structure-splitting function arguments,
* so just look at the body instructions and not the parameter
* declarations.
*/
visit_list_elements(this, &ir->body);
return visit_continue_with_parent;