1//====- X86InstrMMX.td - Describe the X86 Instruction Set --*- 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//===----------------------------------------------------------------------===//

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572 (MMX_MOVQ2FR64rr VR64:$src)>;
573def : Pat<(f64 (bitconvert (v2i32 VR64:$src))),
574 (MMX_MOVQ2FR64rr VR64:$src)>;
575def : Pat<(f64 (bitconvert (v4i16 VR64:$src))),
576 (MMX_MOVQ2FR64rr VR64:$src)>;
577def : Pat<(f64 (bitconvert (v8i8 VR64:$src))),
578 (MMX_MOVQ2FR64rr VR64:$src)>;
579
580let AddedComplexity = 20 in {
581 def : Pat<(v2i32 (X86vzmovl (bc_v2i32 (load_mmx addr:$src)))),
582 (MMX_MOVZDI2PDIrm addr:$src)>;
583}
584
585// Clear top half.
586let AddedComplexity = 15 in {
587 def : Pat<(v2i32 (X86vzmovl VR64:$src)),
588 (MMX_PUNPCKLDQrr VR64:$src, (MMX_V_SET0))>;
589}
590
591// Patterns to perform canonical versions of vector shuffling.
592let AddedComplexity = 10 in {
593 def : Pat<(v8i8 (mmx_unpckl_undef VR64:$src, (undef))),
594 (MMX_PUNPCKLBWrr VR64:$src, VR64:$src)>;
595 def : Pat<(v4i16 (mmx_unpckl_undef VR64:$src, (undef))),
596 (MMX_PUNPCKLWDrr VR64:$src, VR64:$src)>;
597 def : Pat<(v2i32 (mmx_unpckl_undef VR64:$src, (undef))),
598 (MMX_PUNPCKLDQrr VR64:$src, VR64:$src)>;

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