glsl: Optimize (f2i(trunc x)) into (f2i x).
total instructions in shared programs: 5950326 -> 5949286 (-0.02%) instructions in affected programs: 88264 -> 87224 (-1.18%) helped: 692
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@ -376,6 +376,15 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir)
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}
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break;
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case ir_unop_f2i:
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case ir_unop_f2u:
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if (op_expr[0] && op_expr[0]->operation == ir_unop_trunc) {
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return new(mem_ctx) ir_expression(ir->operation,
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ir->type,
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op_expr[0]->operands[0]);
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}
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break;
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case ir_unop_logic_not: {
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enum ir_expression_operation new_op = ir_unop_logic_not;
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