| Tony Linthicum | b4b5415 | 2011-12-12 21:14:40 +0000 | [diff] [blame] | 1 | //===-- HexagonIntrinsicsDerived.td - Derived intrinsics ---*- tablegen -*-===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // Multiply 64-bit and use lower result |
| 11 | // |
| 12 | // Optimized with intrinisics accumulates |
| 13 | // |
| 14 | def : Pat <(mul DoubleRegs:$src1, DoubleRegs:$src2), |
| Chandler Carruth | d410eab | 2012-04-23 18:25:57 +0000 | [diff] [blame] | 15 | (COMBINE_rr |
| 16 | (Hexagon_M2_maci |
| 17 | (Hexagon_M2_maci (EXTRACT_SUBREG (MPYU64 (EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg), |
| 18 | (EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg)), |
| 19 | subreg_hireg), |
| 20 | (EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg), |
| 21 | (EXTRACT_SUBREG DoubleRegs:$src2, subreg_hireg)), |
| 22 | (EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg), |
| 23 | (EXTRACT_SUBREG DoubleRegs:$src1, subreg_hireg)), |
| 24 | (EXTRACT_SUBREG (MPYU64 (EXTRACT_SUBREG DoubleRegs:$src1, subreg_loreg), |
| 25 | (EXTRACT_SUBREG DoubleRegs:$src2, subreg_loreg)), |
| 26 | subreg_loreg))>; |
| Tony Linthicum | b4b5415 | 2011-12-12 21:14:40 +0000 | [diff] [blame] | 27 | |
| 28 | |
| 29 | |