| //===-- 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 |
| (A2_combinew |
| (M2_maci |
| (M2_maci |
| (i32 |
| (EXTRACT_SUBREG |
| (i64 |
| (M2_dpmpyuu_s0 (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), |
| isub_lo)), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), |
| isub_lo)))), |
| isub_hi)), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), isub_lo)), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), isub_hi))), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), isub_lo)), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), isub_hi))), |
| (i32 |
| (EXTRACT_SUBREG |
| (i64 |
| (M2_dpmpyuu_s0 |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src1), isub_lo)), |
| (i32 (EXTRACT_SUBREG (i64 DoubleRegs:$src2), |
| isub_lo)))), isub_lo))))>; |
| |
| |
| |
