mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-29 10:32:47 +00:00
b4b54153ad
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146412 91177308-0d34-0410-b5e6-96231b3b80d8
30 lines
1.3 KiB
TableGen
30 lines
1.3 KiB
TableGen
//===-- 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))>;
|
|
|
|
|
|
|