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-rw-r--r--src/mesa/program/ir_to_mesa.cpp28
1 files changed, 26 insertions, 2 deletions
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 7fff66c78b1..7b65fa4203b 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -813,10 +813,34 @@ ir_to_mesa_visitor::visit(ir_expression *ir)
ir_to_mesa_emit_op2(ir, OPCODE_SGE, result_dst, op[0], op[1]);
break;
case ir_binop_equal:
- ir_to_mesa_emit_op2(ir, OPCODE_SEQ, result_dst, op[0], op[1]);
+ /* "==" operator producing a scalar boolean. */
+ if (ir->operands[0]->type->is_vector() ||
+ ir->operands[1]->type->is_vector()) {
+ ir_to_mesa_src_reg temp = get_temp(glsl_type::vec4_type);
+ ir_to_mesa_emit_op2(ir, OPCODE_SNE,
+ ir_to_mesa_dst_reg_from_src(temp), op[0], op[1]);
+ ir_to_mesa_emit_op2(ir, OPCODE_DP4, result_dst, temp, temp);
+ ir_to_mesa_emit_op2(ir, OPCODE_SEQ,
+ result_dst, result_src, src_reg_for_float(0.0));
+ } else {
+ ir_to_mesa_emit_op2(ir, OPCODE_SEQ, result_dst, op[0], op[1]);
+ }
break;
- case ir_binop_logic_xor:
case ir_binop_nequal:
+ /* "!=" operator producing a scalar boolean. */
+ if (ir->operands[0]->type->is_vector() ||
+ ir->operands[1]->type->is_vector()) {
+ ir_to_mesa_src_reg temp = get_temp(glsl_type::vec4_type);
+ ir_to_mesa_emit_op2(ir, OPCODE_SNE,
+ ir_to_mesa_dst_reg_from_src(temp), op[0], op[1]);
+ ir_to_mesa_emit_op2(ir, OPCODE_DP4, result_dst, temp, temp);
+ ir_to_mesa_emit_op2(ir, OPCODE_SNE,
+ result_dst, result_src, src_reg_for_float(0.0));
+ } else {
+ ir_to_mesa_emit_op2(ir, OPCODE_SNE, result_dst, op[0], op[1]);
+ }
+ break;
+ case ir_binop_logic_xor:
ir_to_mesa_emit_op2(ir, OPCODE_SNE, result_dst, op[0], op[1]);
break;