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//===-- HexagonIntrinsicsDerived.td - Derived intrinsics ---*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Multiply 64-bit and use lower result
//
// Optimized with intrinisics accumulates
//
def : Pat <(mul DoubleRegs:$src1, DoubleRegs:$src2),
(COMBINE_rr
(Hexagon_M2_maci
(Hexagon_M2_maci (EXTRACT_SUBREG (MPYU64 (EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg),
(EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg)),
subreg_hireg),
(EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg),
(EXTRACT_SUBREG DoubleRegs:$src2, subreg_hireg)),
(EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg),
(EXTRACT_SUBREG DoubleRegs:$src1, subreg_hireg)),
(EXTRACT_SUBREG (MPYU64 (EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg),
(EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg)),
subreg_loreg))>;
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