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llvm-mirror/lib/Target/Hexagon/HexagonIntrinsicsDerived.td
Chandler Carruth 9460759e4f Revert r155365, r155366, and r155367. All three of these have regression
test suite failures. The failures occur at each stage, and only get
worse, so I'm reverting all of them.

Please resubmit these patches, one at a time, after verifying that the
regression test suite passes. Never submit a patch without running the
regression test suite.

llvm-svn: 155372
2012-04-23 18:25:57 +00:00

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))>;