diff options
Diffstat (limited to 'contrib/llvm/lib/Target/Hexagon/HexagonIntrinsicsDerived.td')
| -rw-r--r-- | contrib/llvm/lib/Target/Hexagon/HexagonIntrinsicsDerived.td | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/Hexagon/HexagonIntrinsicsDerived.td b/contrib/llvm/lib/Target/Hexagon/HexagonIntrinsicsDerived.td new file mode 100644 index 0000000..68eaf68 --- /dev/null +++ b/contrib/llvm/lib/Target/Hexagon/HexagonIntrinsicsDerived.td @@ -0,0 +1,29 @@ +//===-- 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))>; + + + |
