diff options
| -rw-r--r-- | src/glsl/opt_algebraic.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index 392051f..7863fe8 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -547,6 +547,19 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) break; + case ir_triop_fma: + /* Operands are op0 * op1 + op2. */ + if (is_vec_zero(op_const[0]) || is_vec_zero(op_const[1])) { + return ir->operands[2]; + } else if (is_vec_zero(op_const[2])) { + return mul(ir->operands[0], ir->operands[1]); + } else if (is_vec_one(op_const[0])) { + return add(ir->operands[1], ir->operands[2]); + } else if (is_vec_one(op_const[1])) { + return add(ir->operands[0], ir->operands[2]); + } + break; + case ir_triop_lrp: /* Operands are (x, y, a). */ if (is_vec_zero(op_const[2])) { |