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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),
(i64
(COMBINE_rr
(HEXAGON_M2_maci
(HEXAGON_M2_maci
(i32
(EXTRACT_SUBREG
(i64
(MPYU64 (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1),
subreg_loreg)),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2),
subreg_loreg)))),
subreg_hireg)),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_loreg)),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), subreg_hireg))),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), subreg_loreg)),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_hireg))),
(i32
(EXTRACT_SUBREG
(i64
(MPYU64 (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_loreg)),
(i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2),
subreg_loreg)))), subreg_loreg))))>;
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