2012-09-22 02:07:12 +02:00
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//===- MipsDSPInstrInfo.td - DSP ASE instructions -*- tablegen ------------*-=//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file describes Mips DSP ASE instructions.
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//
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//===----------------------------------------------------------------------===//
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// ImmLeaf
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def immZExt2 : ImmLeaf<i32, [{return isUInt<2>(Imm);}]>;
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def immZExt3 : ImmLeaf<i32, [{return isUInt<3>(Imm);}]>;
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def immZExt4 : ImmLeaf<i32, [{return isUInt<4>(Imm);}]>;
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def immZExt8 : ImmLeaf<i32, [{return isUInt<8>(Imm);}]>;
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def immZExt10 : ImmLeaf<i32, [{return isUInt<10>(Imm);}]>;
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def immSExt6 : ImmLeaf<i32, [{return isInt<6>(Imm);}]>;
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2012-09-27 03:50:59 +02:00
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// Patterns.
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class DSPPat<dag pattern, dag result, Predicate pred = HasDSP> :
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Pat<pattern, result>, Requires<[pred]>;
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def : DSPPat<(v2i16 (load addr:$a)),
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(v2i16 (COPY_TO_REGCLASS (LW addr:$a), DSPRegs))>;
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def : DSPPat<(v4i8 (load addr:$a)),
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(v4i8 (COPY_TO_REGCLASS (LW addr:$a), DSPRegs))>;
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def : DSPPat<(store (v2i16 DSPRegs:$val), addr:$a),
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(SW (COPY_TO_REGCLASS DSPRegs:$val, CPURegs), addr:$a)>;
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def : DSPPat<(store (v4i8 DSPRegs:$val), addr:$a),
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(SW (COPY_TO_REGCLASS DSPRegs:$val, CPURegs), addr:$a)>;
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