| 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), |
| Sirish Pande | 81e900d | 2012-05-11 19:39:13 +0000 | [diff] [blame] | 15 | (i64 |
| 16 | (COMBINE_rr |
| 17 | (HEXAGON_M2_maci |
| 18 | (HEXAGON_M2_maci |
| 19 | (i32 |
| 20 | (EXTRACT_SUBREG |
| 21 | (i64 |
| 22 | (MPYU64 (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), |
| 23 | subreg_loreg)), |
| 24 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), |
| 25 | subreg_loreg)))), |
| 26 | subreg_hireg)), |
| 27 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_loreg)), |
| 28 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), subreg_hireg))), |
| 29 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), subreg_loreg)), |
| 30 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_hireg))), |
| 31 | (i32 |
| 32 | (EXTRACT_SUBREG |
| 33 | (i64 |
| 34 | (MPYU64 (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), subreg_loreg)), |
| 35 | (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), |
| 36 | subreg_loreg)))), subreg_loreg))))>; |
| Tony Linthicum | b4b5415 | 2011-12-12 21:14:40 +0000 | [diff] [blame] | 37 | |
| 38 | |
| 39 | |