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Add a bunch of patterns for different datatypes, e.g. bit_convert, undef and zero vector support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27117 91177308-0d34-0410-b5e6-96231b3b80d8
297 lines
12 KiB
TableGen
297 lines
12 KiB
TableGen
//===- PPCInstrAltivec.td - The PowerPC Altivec Extension --*- tablegen -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Chris Lattner and is distributed under
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// the University of Illinois Open Source 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 the Altivec extension to the PowerPC instruction set.
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Altivec transformation functions and pattern fragments.
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//
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// VSPLT_get_imm xform function: convert vector_shuffle mask to VSPLT* imm.
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def VSPLT_get_imm : SDNodeXForm<build_vector, [{
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return getI32Imm(PPC::getVSPLTImmediate(N));
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}]>;
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def VSPLT_shuffle_mask : PatLeaf<(build_vector), [{
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return PPC::isSplatShuffleMask(N);
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}], VSPLT_get_imm>;
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def vecimm0 : PatLeaf<(build_vector), [{
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return PPC::isZeroVector(N);
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}]>;
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// VSPLTISB_get_imm xform function: convert build_vector to VSPLTISB imm.
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def VSPLTISB_get_imm : SDNodeXForm<build_vector, [{
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char Val;
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PPC::isVecSplatImm(N, 1, &Val);
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return getI32Imm(Val);
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}]>;
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def vecspltisb : PatLeaf<(build_vector), [{
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return PPC::isVecSplatImm(N, 1);
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}], VSPLTISB_get_imm>;
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// VSPLTISH_get_imm xform function: convert build_vector to VSPLTISH imm.
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def VSPLTISH_get_imm : SDNodeXForm<build_vector, [{
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char Val;
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PPC::isVecSplatImm(N, 2, &Val);
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return getI32Imm(Val);
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}]>;
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def vecspltish : PatLeaf<(build_vector), [{
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return PPC::isVecSplatImm(N, 2);
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}], VSPLTISH_get_imm>;
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// VSPLTISW_get_imm xform function: convert build_vector to VSPLTISW imm.
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def VSPLTISW_get_imm : SDNodeXForm<build_vector, [{
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char Val;
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PPC::isVecSplatImm(N, 4, &Val);
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return getI32Imm(Val);
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}]>;
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def vecspltisw : PatLeaf<(build_vector), [{
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return PPC::isVecSplatImm(N, 4);
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}], VSPLTISW_get_imm>;
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//===----------------------------------------------------------------------===//
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// Instruction Definitions.
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def IMPLICIT_DEF_VRRC : Pseudo<(ops VRRC:$rD), "; $rD = IMPLICIT_DEF_VRRC",
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[(set VRRC:$rD, (v4f32 (undef)))]>;
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let isLoad = 1, PPC970_Unit = 2 in { // Loads.
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def LVEBX: XForm_1<31, 7, (ops VRRC:$vD, memrr:$src),
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"lvebx $vD, $src", LdStGeneral,
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[(set VRRC:$vD, (v16i8 (PPClve_x xoaddr:$src)))]>;
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def LVEHX: XForm_1<31, 39, (ops VRRC:$vD, memrr:$src),
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"lvehx $vD, $src", LdStGeneral,
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[(set VRRC:$vD, (v8i16 (PPClve_x xoaddr:$src)))]>;
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def LVEWX: XForm_1<31, 71, (ops VRRC:$vD, memrr:$src),
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"lvewx $vD, $src", LdStGeneral,
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[(set VRRC:$vD, (v4f32 (PPClve_x xoaddr:$src)))]>;
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def LVX : XForm_1<31, 103, (ops VRRC:$vD, memrr:$src),
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"lvx $vD, $src", LdStGeneral,
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[(set VRRC:$vD, (v4f32 (load xoaddr:$src)))]>;
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}
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def LVSL : XForm_1<31, 6, (ops VRRC:$vD, GPRC:$base, GPRC:$rA),
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"lvsl $vD, $base, $rA", LdStGeneral,
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[]>, PPC970_Unit_LSU;
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def LVSR : XForm_1<31, 38, (ops VRRC:$vD, GPRC:$base, GPRC:$rA),
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"lvsl $vD, $base, $rA", LdStGeneral,
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[]>, PPC970_Unit_LSU;
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let isStore = 1, noResults = 1, PPC970_Unit = 2 in { // Stores.
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def STVEBX: XForm_8<31, 135, (ops VRRC:$rS, GPRC:$rA, GPRC:$rB),
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"stvebx $rS, $rA, $rB", LdStGeneral,
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[]>;
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def STVEHX: XForm_8<31, 167, (ops VRRC:$rS, GPRC:$rA, GPRC:$rB),
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"stvehx $rS, $rA, $rB", LdStGeneral,
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[]>;
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def STVEWX: XForm_8<31, 199, (ops VRRC:$rS, GPRC:$rA, GPRC:$rB),
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"stvewx $rS, $rA, $rB", LdStGeneral,
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[]>;
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def STVX : XForm_8<31, 231, (ops VRRC:$rS, memrr:$dst),
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"stvx $rS, $dst", LdStGeneral,
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[(store (v4f32 VRRC:$rS), xoaddr:$dst)]>;
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}
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let PPC970_Unit = 5 in { // VALU Operations.
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// VA-Form instructions. 3-input AltiVec ops.
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def VMADDFP : VAForm_1<46, (ops VRRC:$vD, VRRC:$vA, VRRC:$vC, VRRC:$vB),
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"vmaddfp $vD, $vA, $vC, $vB", VecFP,
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[(set VRRC:$vD, (fadd (fmul VRRC:$vA, VRRC:$vC),
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VRRC:$vB))]>,
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Requires<[FPContractions]>;
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def VNMSUBFP: VAForm_1<47, (ops VRRC:$vD, VRRC:$vA, VRRC:$vC, VRRC:$vB),
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"vnmsubfp $vD, $vA, $vC, $vB", VecFP,
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[(set VRRC:$vD, (fneg (fsub (fmul VRRC:$vA, VRRC:$vC),
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VRRC:$vB)))]>,
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Requires<[FPContractions]>;
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def VPERM : VAForm_1<43, (ops VRRC:$vD, VRRC:$vA, VRRC:$vC, VRRC:$vB),
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"vperm $vD, $vA, $vB, $vC", VecPerm,
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[(set VRRC:$vD,
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(PPCvperm (v4f32 VRRC:$vA), VRRC:$vB, VRRC:$vC))]>;
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// VX-Form instructions. AltiVec arithmetic ops.
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def VADDFP : VXForm_1<10, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vaddfp $vD, $vA, $vB", VecFP,
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[(set VRRC:$vD, (fadd VRRC:$vA, VRRC:$vB))]>;
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def VADDUWM : VXForm_1<128, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vadduwm $vD, $vA, $vB", VecGeneral,
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[(set VRRC:$vD, (add (v4i32 VRRC:$vA), VRRC:$vB))]>;
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def VCFSX : VXForm_1<842, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vcfsx $vD, $vB, $UIMM", VecFP,
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[]>;
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def VCFUX : VXForm_1<778, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vcfux $vD, $vB, $UIMM", VecFP,
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[]>;
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def VCTSXS : VXForm_1<970, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vctsxs $vD, $vB, $UIMM", VecFP,
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[]>;
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def VCTUXS : VXForm_1<906, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vctuxs $vD, $vB, $UIMM", VecFP,
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[]>;
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def VEXPTEFP : VXForm_2<394, (ops VRRC:$vD, VRRC:$vB),
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"vexptefp $vD, $vB", VecFP,
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[]>;
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def VLOGEFP : VXForm_2<458, (ops VRRC:$vD, VRRC:$vB),
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"vlogefp $vD, $vB", VecFP,
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[]>;
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def VMAXFP : VXForm_1<1034, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vmaxfp $vD, $vA, $vB", VecFP,
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[]>;
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def VMINFP : VXForm_1<1098, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vminfp $vD, $vA, $vB", VecFP,
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[]>;
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def VREFP : VXForm_2<266, (ops VRRC:$vD, VRRC:$vB),
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"vrefp $vD, $vB", VecFP,
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[]>;
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def VRFIM : VXForm_2<714, (ops VRRC:$vD, VRRC:$vB),
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"vrfim $vD, $vB", VecFP,
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[]>;
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def VRFIN : VXForm_2<522, (ops VRRC:$vD, VRRC:$vB),
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"vrfin $vD, $vB", VecFP,
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[]>;
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def VRFIP : VXForm_2<650, (ops VRRC:$vD, VRRC:$vB),
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"vrfip $vD, $vB", VecFP,
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[]>;
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def VRFIZ : VXForm_2<586, (ops VRRC:$vD, VRRC:$vB),
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"vrfiz $vD, $vB", VecFP,
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[]>;
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def VRSQRTEFP : VXForm_2<330, (ops VRRC:$vD, VRRC:$vB),
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"vrsqrtefp $vD, $vB", VecFP,
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[]>;
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def VSUBFP : VXForm_1<74, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vsubfp $vD, $vA, $vB", VecFP,
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[(set VRRC:$vD, (fsub VRRC:$vA, VRRC:$vB))]>;
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def VOR : VXForm_1<1156, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vor $vD, $vA, $vB", VecFP,
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[]>;
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def VXOR : VXForm_1<1220, (ops VRRC:$vD, VRRC:$vA, VRRC:$vB),
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"vxor $vD, $vA, $vB", VecFP,
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[]>;
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def VSPLTB : VXForm_1<524, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vspltb $vD, $vB, $UIMM", VecPerm,
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[]>;
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def VSPLTH : VXForm_1<588, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vsplth $vD, $vB, $UIMM", VecPerm,
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[]>;
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def VSPLTW : VXForm_1<652, (ops VRRC:$vD, u5imm:$UIMM, VRRC:$vB),
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"vspltw $vD, $vB, $UIMM", VecPerm,
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[(set VRRC:$vD, (vector_shuffle (v4f32 VRRC:$vB), (undef),
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VSPLT_shuffle_mask:$UIMM))]>;
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def VSPLTISB : VXForm_1<780, (ops VRRC:$vD, s5imm:$SIMM),
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"vspltisb $vD, $SIMM", VecPerm,
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[(set VRRC:$vD, (v4f32 vecspltisb:$SIMM))]>;
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def VSPLTISH : VXForm_1<844, (ops VRRC:$vD, s5imm:$SIMM),
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"vspltish $vD, $SIMM", VecPerm,
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[(set VRRC:$vD, (v4f32 vecspltish:$SIMM))]>;
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def VSPLTISW : VXForm_1<908, (ops VRRC:$vD, s5imm:$SIMM),
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"vspltisw $vD, $SIMM", VecPerm,
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[(set VRRC:$vD, (v4f32 vecspltisw:$SIMM))]>;
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// VX-Form Pseudo Instructions
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def V_SET0 : VXForm_setzero<1220, (ops VRRC:$vD),
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"vxor $vD, $vD, $vD", VecFP,
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[(set VRRC:$vD, (v4f32 vecimm0))]>;
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}
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//===----------------------------------------------------------------------===//
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// Additional Altivec Patterns
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//
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// Undef/Zero.
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def : Pat<(v16i8 (undef)), (v16i8 (IMPLICIT_DEF_VRRC))>;
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def : Pat<(v8i16 (undef)), (v8i16 (IMPLICIT_DEF_VRRC))>;
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def : Pat<(v4i32 (undef)), (v4i32 (IMPLICIT_DEF_VRRC))>;
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def : Pat<(v16i8 vecimm0), (v16i8 (V_SET0))>;
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def : Pat<(v8i16 vecimm0), (v8i16 (V_SET0))>;
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def : Pat<(v4i32 vecimm0), (v4i32 (V_SET0))>;
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// Loads.
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def : Pat<(v16i8 (load xoaddr:$src)), (v16i8 (LVX xoaddr:$src))>;
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def : Pat<(v8i16 (load xoaddr:$src)), (v8i16 (LVX xoaddr:$src))>;
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def : Pat<(v4i32 (load xoaddr:$src)), (v4i32 (LVX xoaddr:$src))>;
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// Stores.
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def : Pat<(store (v16i8 VRRC:$rS), xoaddr:$dst),
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(STVX (v16i8 VRRC:$rS), xoaddr:$dst)>;
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def : Pat<(store (v8i16 VRRC:$rS), xoaddr:$dst),
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(STVX (v8i16 VRRC:$rS), xoaddr:$dst)>;
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def : Pat<(store (v4i32 VRRC:$rS), xoaddr:$dst),
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(STVX (v4i32 VRRC:$rS), xoaddr:$dst)>;
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// Bit conversions.
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def : Pat<(v16i8 (bitconvert (v8i16 VRRC:$src))), (v16i8 VRRC:$src)>;
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def : Pat<(v16i8 (bitconvert (v4i32 VRRC:$src))), (v16i8 VRRC:$src)>;
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def : Pat<(v16i8 (bitconvert (v4f32 VRRC:$src))), (v16i8 VRRC:$src)>;
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def : Pat<(v8i16 (bitconvert (v16i8 VRRC:$src))), (v8i16 VRRC:$src)>;
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def : Pat<(v8i16 (bitconvert (v4i32 VRRC:$src))), (v8i16 VRRC:$src)>;
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def : Pat<(v8i16 (bitconvert (v4f32 VRRC:$src))), (v8i16 VRRC:$src)>;
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def : Pat<(v4i32 (bitconvert (v16i8 VRRC:$src))), (v4i32 VRRC:$src)>;
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def : Pat<(v4i32 (bitconvert (v8i16 VRRC:$src))), (v4i32 VRRC:$src)>;
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def : Pat<(v4i32 (bitconvert (v4f32 VRRC:$src))), (v4i32 VRRC:$src)>;
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def : Pat<(v4f32 (bitconvert (v16i8 VRRC:$src))), (v4f32 VRRC:$src)>;
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def : Pat<(v4f32 (bitconvert (v8i16 VRRC:$src))), (v4f32 VRRC:$src)>;
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def : Pat<(v4f32 (bitconvert (v4i32 VRRC:$src))), (v4f32 VRRC:$src)>;
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// Immediate vector formation with vsplti*.
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def : Pat<(v16i8 vecspltisb:$invec), (v16i8 (VSPLTISB vecspltisb:$invec))>;
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def : Pat<(v16i8 vecspltish:$invec), (v16i8 (VSPLTISH vecspltish:$invec))>;
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def : Pat<(v16i8 vecspltisw:$invec), (v16i8 (VSPLTISW vecspltisw:$invec))>;
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def : Pat<(v8i16 vecspltisb:$invec), (v8i16 (VSPLTISB vecspltisb:$invec))>;
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def : Pat<(v8i16 vecspltish:$invec), (v8i16 (VSPLTISH vecspltish:$invec))>;
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def : Pat<(v8i16 vecspltisw:$invec), (v8i16 (VSPLTISW vecspltisw:$invec))>;
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def : Pat<(v4i32 vecspltisb:$invec), (v4i32 (VSPLTISB vecspltisb:$invec))>;
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def : Pat<(v4i32 vecspltish:$invec), (v4i32 (VSPLTISH vecspltish:$invec))>;
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def : Pat<(v4i32 vecspltisw:$invec), (v4i32 (VSPLTISW vecspltisw:$invec))>;
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def : Pat<(fmul VRRC:$vA, VRRC:$vB),
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(VMADDFP VRRC:$vA, VRRC:$vB, (V_SET0))>;
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// Fused multiply add and multiply sub for packed float. These are represented
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// separately from the real instructions above, for operations that must have
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// the additional precision, such as Newton-Rhapson (used by divide, sqrt)
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def : Pat<(PPCvmaddfp VRRC:$A, VRRC:$B, VRRC:$C),
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(VMADDFP VRRC:$A, VRRC:$B, VRRC:$C)>;
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def : Pat<(PPCvnmsubfp VRRC:$A, VRRC:$B, VRRC:$C),
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(VNMSUBFP VRRC:$A, VRRC:$B, VRRC:$C)>;
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def : Pat<(int_ppc_altivec_vmaddfp VRRC:$A, VRRC:$B, VRRC:$C),
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(VMADDFP VRRC:$A, VRRC:$B, VRRC:$C)>;
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def : Pat<(int_ppc_altivec_vnmsubfp VRRC:$A, VRRC:$B, VRRC:$C),
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(VNMSUBFP VRRC:$A, VRRC:$B, VRRC:$C)>;
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def : Pat<(vector_shuffle (v4i32 VRRC:$vB), (undef), VSPLT_shuffle_mask:$UIMM),
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(v4i32 (VSPLTW VSPLT_shuffle_mask:$UIMM, VRRC:$vB))>;
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def : Pat<(PPCvperm (v4i32 VRRC:$vA), VRRC:$vB, VRRC:$vC),
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(v4i32 (VPERM VRRC:$vA, VRRC:$vB, VRRC:$vC))>;
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def : Pat<(v4i32 (PPClve_x xoaddr:$src)),
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(v4i32 (LVEWX xoaddr:$src))>;
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