forked from OSchip/llvm-project
1525 lines
45 KiB
TableGen
1525 lines
45 KiB
TableGen
//===-- SIInstructions.td - SI Instruction Defintions ---------------------===//
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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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// This file was originally auto-generated from a GPU register header file and
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// all the instruction definitions were originally commented out. Instructions
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// that are not yet supported remain commented out.
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//===----------------------------------------------------------------------===//
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def has16BankLDS : Predicate<"Subtarget->getLDSBankCount() == 16">;
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def has32BankLDS : Predicate<"Subtarget->getLDSBankCount() == 32">;
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def HasVGPRIndexMode : Predicate<"Subtarget->hasVGPRIndexMode()">,
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AssemblerPredicate<"FeatureVGPRIndexMode">;
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def HasMovrel : Predicate<"Subtarget->hasMovrel()">,
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AssemblerPredicate<"FeatureMovrel">;
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class GCNPat<dag pattern, dag result> : AMDGPUPat<pattern, result> {
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let SubtargetPredicate = isGCN;
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}
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include "VOPInstructions.td"
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include "SOPInstructions.td"
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include "SMInstructions.td"
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include "FLATInstructions.td"
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include "BUFInstructions.td"
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//===----------------------------------------------------------------------===//
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// EXP Instructions
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//===----------------------------------------------------------------------===//
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defm EXP : EXP_m<0, AMDGPUexport>;
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defm EXP_DONE : EXP_m<1, AMDGPUexport_done>;
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//===----------------------------------------------------------------------===//
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// VINTRP Instructions
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//===----------------------------------------------------------------------===//
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let Uses = [M0, EXEC] in {
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// FIXME: Specify SchedRW for VINTRP insturctions.
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multiclass V_INTERP_P1_F32_m : VINTRP_m <
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0x00000000,
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(outs VGPR_32:$vdst),
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(ins VGPR_32:$vsrc, Attr:$attr, AttrChan:$attrchan),
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"v_interp_p1_f32 $vdst, $vsrc, $attr$attrchan",
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[(set f32:$vdst, (AMDGPUinterp_p1 f32:$vsrc, (i32 imm:$attrchan),
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(i32 imm:$attr)))]
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>;
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let OtherPredicates = [has32BankLDS] in {
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defm V_INTERP_P1_F32 : V_INTERP_P1_F32_m;
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} // End OtherPredicates = [has32BankLDS]
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let OtherPredicates = [has16BankLDS], Constraints = "@earlyclobber $vdst", isAsmParserOnly=1 in {
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defm V_INTERP_P1_F32_16bank : V_INTERP_P1_F32_m;
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} // End OtherPredicates = [has32BankLDS], Constraints = "@earlyclobber $vdst", isAsmParserOnly=1
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let DisableEncoding = "$src0", Constraints = "$src0 = $vdst" in {
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defm V_INTERP_P2_F32 : VINTRP_m <
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0x00000001,
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(outs VGPR_32:$vdst),
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(ins VGPR_32:$src0, VGPR_32:$vsrc, Attr:$attr, AttrChan:$attrchan),
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"v_interp_p2_f32 $vdst, $vsrc, $attr$attrchan",
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[(set f32:$vdst, (AMDGPUinterp_p2 f32:$src0, f32:$vsrc, (i32 imm:$attrchan),
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(i32 imm:$attr)))]>;
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} // End DisableEncoding = "$src0", Constraints = "$src0 = $vdst"
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defm V_INTERP_MOV_F32 : VINTRP_m <
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0x00000002,
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(outs VGPR_32:$vdst),
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(ins InterpSlot:$vsrc, Attr:$attr, AttrChan:$attrchan),
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"v_interp_mov_f32 $vdst, $vsrc, $attr$attrchan",
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[(set f32:$vdst, (AMDGPUinterp_mov (i32 imm:$vsrc), (i32 imm:$attrchan),
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(i32 imm:$attr)))]>;
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} // End Uses = [M0, EXEC]
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//===----------------------------------------------------------------------===//
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// Pseudo Instructions
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//===----------------------------------------------------------------------===//
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def ATOMIC_FENCE : SPseudoInstSI<
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(outs), (ins i32imm:$ordering, i32imm:$scope),
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[(atomic_fence (i32 imm:$ordering), (i32 imm:$scope))],
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"ATOMIC_FENCE $ordering, $scope"> {
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let hasSideEffects = 1;
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let maybeAtomic = 1;
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}
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let hasSideEffects = 0, mayLoad = 0, mayStore = 0, Uses = [EXEC] in {
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// For use in patterns
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def V_CNDMASK_B64_PSEUDO : VOP3Common <(outs VReg_64:$vdst),
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(ins VSrc_b64:$src0, VSrc_b64:$src1, SSrc_b64:$src2), "", []> {
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let isPseudo = 1;
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let isCodeGenOnly = 1;
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let usesCustomInserter = 1;
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}
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// 64-bit vector move instruction. This is mainly used by the SIFoldOperands
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// pass to enable folding of inline immediates.
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def V_MOV_B64_PSEUDO : VPseudoInstSI <(outs VReg_64:$vdst),
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(ins VSrc_b64:$src0)>;
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// Pseudoinstruction for @llvm.amdgcn.wqm. It is turned into a copy after the
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// WQM pass processes it.
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def WQM : PseudoInstSI <(outs unknown:$vdst), (ins unknown:$src0)>;
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// Pseudoinstruction for @llvm.amdgcn.wwm. It is turned into a copy post-RA, so
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// that the @earlyclobber is respected. The @earlyclobber is to make sure that
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// the instruction that defines $src0 (which is run in WWM) doesn't
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// accidentally clobber inactive channels of $vdst.
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let Constraints = "@earlyclobber $vdst" in {
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def WWM : PseudoInstSI <(outs unknown:$vdst), (ins unknown:$src0)>;
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}
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} // End let hasSideEffects = 0, mayLoad = 0, mayStore = 0, Uses = [EXEC]
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def EXIT_WWM : SPseudoInstSI <(outs SReg_64:$sdst), (ins SReg_64:$src0)> {
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let hasSideEffects = 0;
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let mayLoad = 0;
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let mayStore = 0;
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}
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// Invert the exec mask and overwrite the inactive lanes of dst with inactive,
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// restoring it after we're done.
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def V_SET_INACTIVE_B32 : VPseudoInstSI <(outs VGPR_32:$vdst),
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(ins VGPR_32: $src, VSrc_b32:$inactive),
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[(set i32:$vdst, (int_amdgcn_set_inactive i32:$src, i32:$inactive))]> {
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let Constraints = "$src = $vdst";
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}
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def V_SET_INACTIVE_B64 : VPseudoInstSI <(outs VReg_64:$vdst),
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(ins VReg_64: $src, VSrc_b64:$inactive),
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[(set i64:$vdst, (int_amdgcn_set_inactive i64:$src, i64:$inactive))]> {
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let Constraints = "$src = $vdst";
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}
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let usesCustomInserter = 1, SALU = 1 in {
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def GET_GROUPSTATICSIZE : PseudoInstSI <(outs SReg_32:$sdst), (ins),
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[(set SReg_32:$sdst, (int_amdgcn_groupstaticsize))]>;
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} // End let usesCustomInserter = 1, SALU = 1
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def S_MOV_B64_term : PseudoInstSI<(outs SReg_64:$dst),
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(ins SSrc_b64:$src0)> {
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let SALU = 1;
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let isAsCheapAsAMove = 1;
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let isTerminator = 1;
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}
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def S_XOR_B64_term : PseudoInstSI<(outs SReg_64:$dst),
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(ins SSrc_b64:$src0, SSrc_b64:$src1)> {
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let SALU = 1;
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let isAsCheapAsAMove = 1;
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let isTerminator = 1;
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}
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def S_ANDN2_B64_term : PseudoInstSI<(outs SReg_64:$dst),
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(ins SSrc_b64:$src0, SSrc_b64:$src1)> {
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let SALU = 1;
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let isAsCheapAsAMove = 1;
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let isTerminator = 1;
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}
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def WAVE_BARRIER : SPseudoInstSI<(outs), (ins),
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[(int_amdgcn_wave_barrier)]> {
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let SchedRW = [];
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let hasNoSchedulingInfo = 1;
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let hasSideEffects = 1;
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let mayLoad = 1;
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let mayStore = 1;
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let isBarrier = 1;
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let isConvergent = 1;
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let FixedSize = 1;
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let Size = 0;
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}
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// SI pseudo instructions. These are used by the CFG structurizer pass
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// and should be lowered to ISA instructions prior to codegen.
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// Dummy terminator instruction to use after control flow instructions
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// replaced with exec mask operations.
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def SI_MASK_BRANCH : VPseudoInstSI <
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(outs), (ins brtarget:$target)> {
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let isBranch = 0;
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let isTerminator = 1;
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let isBarrier = 0;
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let SchedRW = [];
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let hasNoSchedulingInfo = 1;
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let FixedSize = 1;
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let Size = 0;
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}
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let isTerminator = 1 in {
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def SI_NON_UNIFORM_BRCOND_PSEUDO : CFPseudoInstSI <
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(outs),
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(ins SReg_64:$vcc, brtarget:$target),
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[(brcond i1:$vcc, bb:$target)]> {
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let Size = 12;
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}
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def SI_IF: CFPseudoInstSI <
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(outs SReg_64:$dst), (ins SReg_64:$vcc, brtarget:$target),
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[(set i64:$dst, (AMDGPUif i1:$vcc, bb:$target))], 1, 1> {
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let Constraints = "";
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let Size = 12;
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let hasSideEffects = 1;
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}
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def SI_ELSE : CFPseudoInstSI <
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(outs SReg_64:$dst),
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(ins SReg_64:$src, brtarget:$target, i1imm:$execfix), [], 1, 1> {
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let Constraints = "$src = $dst";
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let Size = 12;
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let hasSideEffects = 1;
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}
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def SI_LOOP : CFPseudoInstSI <
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(outs), (ins SReg_64:$saved, brtarget:$target),
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[(AMDGPUloop i64:$saved, bb:$target)], 1, 1> {
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let Size = 8;
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let isBranch = 0;
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let hasSideEffects = 1;
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}
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} // End isTerminator = 1
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def SI_END_CF : CFPseudoInstSI <
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(outs), (ins SReg_64:$saved),
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[(int_amdgcn_end_cf i64:$saved)], 1, 1> {
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let Size = 4;
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let isAsCheapAsAMove = 1;
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let isReMaterializable = 1;
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let hasSideEffects = 1;
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let mayLoad = 1; // FIXME: Should not need memory flags
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let mayStore = 1;
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}
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def SI_BREAK : CFPseudoInstSI <
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(outs SReg_64:$dst), (ins SReg_64:$src),
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[(set i64:$dst, (int_amdgcn_break i64:$src))], 1> {
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let Size = 4;
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let isAsCheapAsAMove = 1;
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let isReMaterializable = 1;
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}
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def SI_IF_BREAK : CFPseudoInstSI <
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(outs SReg_64:$dst), (ins SReg_64:$vcc, SReg_64:$src),
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[(set i64:$dst, (int_amdgcn_if_break i1:$vcc, i64:$src))]> {
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let Size = 4;
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let isAsCheapAsAMove = 1;
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let isReMaterializable = 1;
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}
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def SI_ELSE_BREAK : CFPseudoInstSI <
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(outs SReg_64:$dst), (ins SReg_64:$src0, SReg_64:$src1),
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[(set i64:$dst, (int_amdgcn_else_break i64:$src0, i64:$src1))]> {
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let Size = 4;
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let isAsCheapAsAMove = 1;
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let isReMaterializable = 1;
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}
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let Uses = [EXEC], Defs = [EXEC,VCC] in {
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def SI_KILL : PseudoInstSI <
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(outs), (ins VSrc_b32:$src),
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[(AMDGPUkill i32:$src)]> {
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let isConvergent = 1;
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let usesCustomInserter = 1;
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}
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def SI_KILL_TERMINATOR : SPseudoInstSI <
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(outs), (ins VSrc_b32:$src)> {
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let isTerminator = 1;
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}
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def SI_ILLEGAL_COPY : SPseudoInstSI <
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(outs unknown:$dst), (ins unknown:$src),
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[], " ; illegal copy $src to $dst">;
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} // End Uses = [EXEC], Defs = [EXEC,VCC]
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// Branch on undef scc. Used to avoid intermediate copy from
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// IMPLICIT_DEF to SCC.
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def SI_BR_UNDEF : SPseudoInstSI <(outs), (ins sopp_brtarget:$simm16)> {
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let isTerminator = 1;
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let usesCustomInserter = 1;
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}
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def SI_PS_LIVE : PseudoInstSI <
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(outs SReg_64:$dst), (ins),
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[(set i1:$dst, (int_amdgcn_ps_live))]> {
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let SALU = 1;
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}
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def SI_MASKED_UNREACHABLE : SPseudoInstSI <(outs), (ins),
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[(int_amdgcn_unreachable)],
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"; divergent unreachable"> {
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let Size = 0;
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let hasNoSchedulingInfo = 1;
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let FixedSize = 1;
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}
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// Used as an isel pseudo to directly emit initialization with an
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// s_mov_b32 rather than a copy of another initialized
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// register. MachineCSE skips copies, and we don't want to have to
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// fold operands before it runs.
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def SI_INIT_M0 : SPseudoInstSI <(outs), (ins SSrc_b32:$src)> {
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let Defs = [M0];
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let usesCustomInserter = 1;
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let isAsCheapAsAMove = 1;
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let isReMaterializable = 1;
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}
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def SI_INIT_EXEC : SPseudoInstSI <
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(outs), (ins i64imm:$src), []> {
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let Defs = [EXEC];
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let usesCustomInserter = 1;
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let isAsCheapAsAMove = 1;
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}
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def SI_INIT_EXEC_FROM_INPUT : SPseudoInstSI <
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(outs), (ins SSrc_b32:$input, i32imm:$shift), []> {
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let Defs = [EXEC];
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let usesCustomInserter = 1;
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}
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// Return for returning shaders to a shader variant epilog.
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def SI_RETURN_TO_EPILOG : SPseudoInstSI <
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(outs), (ins variable_ops), [(AMDGPUreturn_to_epilog)]> {
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let isTerminator = 1;
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let isBarrier = 1;
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let isReturn = 1;
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let hasNoSchedulingInfo = 1;
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let DisableWQM = 1;
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}
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// Return for returning function calls.
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def SI_RETURN : SPseudoInstSI <
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(outs), (ins), [],
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"; return"> {
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let isTerminator = 1;
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let isBarrier = 1;
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let isReturn = 1;
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let SchedRW = [WriteBranch];
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}
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// Return for returning function calls without output register.
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//
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// This version is only needed so we can fill in the output regiter in
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// the custom inserter.
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def SI_CALL_ISEL : SPseudoInstSI <
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(outs), (ins SSrc_b64:$src0), [(AMDGPUcall i64:$src0)]> {
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let Size = 4;
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let isCall = 1;
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let SchedRW = [WriteBranch];
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let usesCustomInserter = 1;
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}
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// Wrapper around s_swappc_b64 with extra $callee parameter to track
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// the called function after regalloc.
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def SI_CALL : SPseudoInstSI <
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(outs SReg_64:$dst), (ins SSrc_b64:$src0, unknown:$callee)> {
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let Size = 4;
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let isCall = 1;
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let UseNamedOperandTable = 1;
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let SchedRW = [WriteBranch];
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}
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// Tail call handling pseudo
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def SI_TCRETURN_ISEL : SPseudoInstSI<(outs),
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(ins SSrc_b64:$src0, i32imm:$fpdiff),
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[(AMDGPUtc_return i64:$src0, i32:$fpdiff)]> {
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let isCall = 1;
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let isTerminator = 1;
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let isReturn = 1;
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let isBarrier = 1;
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let SchedRW = [WriteBranch];
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let usesCustomInserter = 1;
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}
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def SI_TCRETURN : SPseudoInstSI <
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(outs),
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(ins SSrc_b64:$src0, unknown:$callee, i32imm:$fpdiff)> {
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let Size = 4;
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let isCall = 1;
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let isTerminator = 1;
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let isReturn = 1;
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let isBarrier = 1;
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let UseNamedOperandTable = 1;
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let SchedRW = [WriteBranch];
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}
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def ADJCALLSTACKUP : SPseudoInstSI<
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(outs), (ins i32imm:$amt0, i32imm:$amt1),
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[(callseq_start timm:$amt0, timm:$amt1)],
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"; adjcallstackup $amt0 $amt1"> {
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let Size = 8; // Worst case. (s_add_u32 + constant)
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let FixedSize = 1;
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let hasSideEffects = 1;
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let usesCustomInserter = 1;
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}
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def ADJCALLSTACKDOWN : SPseudoInstSI<
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(outs), (ins i32imm:$amt1, i32imm:$amt2),
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[(callseq_end timm:$amt1, timm:$amt2)],
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"; adjcallstackdown $amt1"> {
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let Size = 8; // Worst case. (s_add_u32 + constant)
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let hasSideEffects = 1;
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let usesCustomInserter = 1;
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}
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let Defs = [M0, EXEC],
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UseNamedOperandTable = 1 in {
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class SI_INDIRECT_SRC<RegisterClass rc> : VPseudoInstSI <
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(outs VGPR_32:$vdst),
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(ins rc:$src, VS_32:$idx, i32imm:$offset)> {
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let usesCustomInserter = 1;
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}
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class SI_INDIRECT_DST<RegisterClass rc> : VPseudoInstSI <
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(outs rc:$vdst),
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(ins rc:$src, VS_32:$idx, i32imm:$offset, VGPR_32:$val)> {
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let Constraints = "$src = $vdst";
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let usesCustomInserter = 1;
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}
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// TODO: We can support indirect SGPR access.
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def SI_INDIRECT_SRC_V1 : SI_INDIRECT_SRC<VGPR_32>;
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def SI_INDIRECT_SRC_V2 : SI_INDIRECT_SRC<VReg_64>;
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def SI_INDIRECT_SRC_V4 : SI_INDIRECT_SRC<VReg_128>;
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def SI_INDIRECT_SRC_V8 : SI_INDIRECT_SRC<VReg_256>;
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def SI_INDIRECT_SRC_V16 : SI_INDIRECT_SRC<VReg_512>;
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def SI_INDIRECT_DST_V1 : SI_INDIRECT_DST<VGPR_32>;
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def SI_INDIRECT_DST_V2 : SI_INDIRECT_DST<VReg_64>;
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def SI_INDIRECT_DST_V4 : SI_INDIRECT_DST<VReg_128>;
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def SI_INDIRECT_DST_V8 : SI_INDIRECT_DST<VReg_256>;
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def SI_INDIRECT_DST_V16 : SI_INDIRECT_DST<VReg_512>;
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|
|
} // End Uses = [EXEC], Defs = [M0, EXEC]
|
|
|
|
multiclass SI_SPILL_SGPR <RegisterClass sgpr_class> {
|
|
let UseNamedOperandTable = 1, SGPRSpill = 1, Uses = [EXEC] in {
|
|
def _SAVE : PseudoInstSI <
|
|
(outs),
|
|
(ins sgpr_class:$data, i32imm:$addr)> {
|
|
let mayStore = 1;
|
|
let mayLoad = 0;
|
|
}
|
|
|
|
def _RESTORE : PseudoInstSI <
|
|
(outs sgpr_class:$data),
|
|
(ins i32imm:$addr)> {
|
|
let mayStore = 0;
|
|
let mayLoad = 1;
|
|
}
|
|
} // End UseNamedOperandTable = 1
|
|
}
|
|
|
|
// You cannot use M0 as the output of v_readlane_b32 instructions or
|
|
// use it in the sdata operand of SMEM instructions. We still need to
|
|
// be able to spill the physical register m0, so allow it for
|
|
// SI_SPILL_32_* instructions.
|
|
defm SI_SPILL_S32 : SI_SPILL_SGPR <SReg_32>;
|
|
defm SI_SPILL_S64 : SI_SPILL_SGPR <SReg_64>;
|
|
defm SI_SPILL_S128 : SI_SPILL_SGPR <SReg_128>;
|
|
defm SI_SPILL_S256 : SI_SPILL_SGPR <SReg_256>;
|
|
defm SI_SPILL_S512 : SI_SPILL_SGPR <SReg_512>;
|
|
|
|
multiclass SI_SPILL_VGPR <RegisterClass vgpr_class> {
|
|
let UseNamedOperandTable = 1, VGPRSpill = 1,
|
|
SchedRW = [WriteVMEM] in {
|
|
def _SAVE : VPseudoInstSI <
|
|
(outs),
|
|
(ins vgpr_class:$vdata, i32imm:$vaddr, SReg_128:$srsrc,
|
|
SReg_32:$soffset, i32imm:$offset)> {
|
|
let mayStore = 1;
|
|
let mayLoad = 0;
|
|
// (2 * 4) + (8 * num_subregs) bytes maximum
|
|
let Size = !add(!shl(!srl(vgpr_class.Size, 5), 3), 8);
|
|
}
|
|
|
|
def _RESTORE : VPseudoInstSI <
|
|
(outs vgpr_class:$vdata),
|
|
(ins i32imm:$vaddr, SReg_128:$srsrc, SReg_32:$soffset,
|
|
i32imm:$offset)> {
|
|
let mayStore = 0;
|
|
let mayLoad = 1;
|
|
|
|
// (2 * 4) + (8 * num_subregs) bytes maximum
|
|
let Size = !add(!shl(!srl(vgpr_class.Size, 5), 3), 8);
|
|
}
|
|
} // End UseNamedOperandTable = 1, VGPRSpill = 1, SchedRW = [WriteVMEM]
|
|
}
|
|
|
|
defm SI_SPILL_V32 : SI_SPILL_VGPR <VGPR_32>;
|
|
defm SI_SPILL_V64 : SI_SPILL_VGPR <VReg_64>;
|
|
defm SI_SPILL_V96 : SI_SPILL_VGPR <VReg_96>;
|
|
defm SI_SPILL_V128 : SI_SPILL_VGPR <VReg_128>;
|
|
defm SI_SPILL_V256 : SI_SPILL_VGPR <VReg_256>;
|
|
defm SI_SPILL_V512 : SI_SPILL_VGPR <VReg_512>;
|
|
|
|
def SI_PC_ADD_REL_OFFSET : SPseudoInstSI <
|
|
(outs SReg_64:$dst),
|
|
(ins si_ga:$ptr_lo, si_ga:$ptr_hi),
|
|
[(set SReg_64:$dst,
|
|
(i64 (SIpc_add_rel_offset (tglobaladdr:$ptr_lo), (tglobaladdr:$ptr_hi))))]> {
|
|
let Defs = [SCC];
|
|
}
|
|
|
|
def : GCNPat <
|
|
(AMDGPUinit_exec i64:$src),
|
|
(SI_INIT_EXEC (as_i64imm $src))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(AMDGPUinit_exec_from_input i32:$input, i32:$shift),
|
|
(SI_INIT_EXEC_FROM_INPUT (i32 $input), (as_i32imm $shift))
|
|
>;
|
|
|
|
def : GCNPat<
|
|
(AMDGPUtrap timm:$trapid),
|
|
(S_TRAP $trapid)
|
|
>;
|
|
|
|
def : GCNPat<
|
|
(AMDGPUelse i64:$src, bb:$target),
|
|
(SI_ELSE $src, $target, 0)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(int_AMDGPU_kilp),
|
|
(SI_KILL (i32 0xbf800000))
|
|
>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// VOP1 Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
let SubtargetPredicate = isGCN, OtherPredicates = [UnsafeFPMath] in {
|
|
|
|
//def : RcpPat<V_RCP_F64_e32, f64>;
|
|
//defm : RsqPat<V_RSQ_F64_e32, f64>;
|
|
//defm : RsqPat<V_RSQ_F32_e32, f32>;
|
|
|
|
def : RsqPat<V_RSQ_F32_e32, f32>;
|
|
def : RsqPat<V_RSQ_F64_e32, f64>;
|
|
|
|
// Convert (x - floor(x)) to fract(x)
|
|
def : GCNPat <
|
|
(f32 (fsub (f32 (VOP3Mods f32:$x, i32:$mods)),
|
|
(f32 (ffloor (f32 (VOP3Mods f32:$x, i32:$mods)))))),
|
|
(V_FRACT_F32_e64 $mods, $x, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
// Convert (x + (-floor(x))) to fract(x)
|
|
def : GCNPat <
|
|
(f64 (fadd (f64 (VOP3Mods f64:$x, i32:$mods)),
|
|
(f64 (fneg (f64 (ffloor (f64 (VOP3Mods f64:$x, i32:$mods)))))))),
|
|
(V_FRACT_F64_e64 $mods, $x, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
} // End SubtargetPredicate = isGCN, OtherPredicates = [UnsafeFPMath]
|
|
|
|
|
|
// f16_to_fp patterns
|
|
def : GCNPat <
|
|
(f32 (f16_to_fp i32:$src0)),
|
|
(V_CVT_F32_F16_e64 SRCMODS.NONE, $src0, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 (f16_to_fp (and_oneuse i32:$src0, 0x7fff))),
|
|
(V_CVT_F32_F16_e64 SRCMODS.ABS, $src0, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 (f16_to_fp (or_oneuse i32:$src0, 0x8000))),
|
|
(V_CVT_F32_F16_e64 SRCMODS.NEG_ABS, $src0, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 (f16_to_fp (xor_oneuse i32:$src0, 0x8000))),
|
|
(V_CVT_F32_F16_e64 SRCMODS.NEG, $src0, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f64 (fpextend f16:$src)),
|
|
(V_CVT_F64_F32_e32 (V_CVT_F32_F16_e32 $src))
|
|
>;
|
|
|
|
// fp_to_fp16 patterns
|
|
def : GCNPat <
|
|
(i32 (AMDGPUfp_to_f16 (f32 (VOP3Mods f32:$src0, i32:$src0_modifiers)))),
|
|
(V_CVT_F16_F32_e64 $src0_modifiers, f32:$src0, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i32 (fp_to_sint f16:$src)),
|
|
(V_CVT_I32_F32_e32 (V_CVT_F32_F16_e32 $src))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i32 (fp_to_uint f16:$src)),
|
|
(V_CVT_U32_F32_e32 (V_CVT_F32_F16_e32 $src))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f16 (sint_to_fp i32:$src)),
|
|
(V_CVT_F16_F32_e32 (V_CVT_F32_I32_e32 $src))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f16 (uint_to_fp i32:$src)),
|
|
(V_CVT_F16_F32_e32 (V_CVT_F32_U32_e32 $src))
|
|
>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// VOP2 Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
multiclass FMADPat <ValueType vt, Instruction inst> {
|
|
def : GCNPat <
|
|
(vt (fmad (VOP3NoMods vt:$src0),
|
|
(VOP3NoMods vt:$src1),
|
|
(VOP3NoMods vt:$src2))),
|
|
(inst SRCMODS.NONE, $src0, SRCMODS.NONE, $src1,
|
|
SRCMODS.NONE, $src2, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
}
|
|
|
|
defm : FMADPat <f16, V_MAC_F16_e64>;
|
|
defm : FMADPat <f32, V_MAC_F32_e64>;
|
|
|
|
class FMADModsPat<Instruction inst, SDPatternOperator mad_opr> : GCNPat<
|
|
(f32 (mad_opr (VOP3Mods f32:$src0, i32:$src0_mod),
|
|
(VOP3Mods f32:$src1, i32:$src1_mod),
|
|
(VOP3Mods f32:$src2, i32:$src2_mod))),
|
|
(inst $src0_mod, $src0, $src1_mod, $src1,
|
|
$src2_mod, $src2, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : FMADModsPat<V_MAD_F32, AMDGPUfmad_ftz>;
|
|
|
|
multiclass SelectPat <ValueType vt, Instruction inst> {
|
|
def : GCNPat <
|
|
(vt (select i1:$src0, vt:$src1, vt:$src2)),
|
|
(inst $src2, $src1, $src0)
|
|
>;
|
|
}
|
|
|
|
defm : SelectPat <i16, V_CNDMASK_B32_e64>;
|
|
defm : SelectPat <i32, V_CNDMASK_B32_e64>;
|
|
defm : SelectPat <f16, V_CNDMASK_B32_e64>;
|
|
defm : SelectPat <f32, V_CNDMASK_B32_e64>;
|
|
|
|
def : GCNPat <
|
|
(i32 (add (i32 (ctpop i32:$popcnt)), i32:$val)),
|
|
(V_BCNT_U32_B32_e64 $popcnt, $val)
|
|
>;
|
|
|
|
/********** ============================================ **********/
|
|
/********** Extraction, Insertion, Building and Casting **********/
|
|
/********** ============================================ **********/
|
|
|
|
foreach Index = 0-2 in {
|
|
def Extract_Element_v2i32_#Index : Extract_Element <
|
|
i32, v2i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v2i32_#Index : Insert_Element <
|
|
i32, v2i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
|
|
def Extract_Element_v2f32_#Index : Extract_Element <
|
|
f32, v2f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v2f32_#Index : Insert_Element <
|
|
f32, v2f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
}
|
|
|
|
foreach Index = 0-3 in {
|
|
def Extract_Element_v4i32_#Index : Extract_Element <
|
|
i32, v4i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v4i32_#Index : Insert_Element <
|
|
i32, v4i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
|
|
def Extract_Element_v4f32_#Index : Extract_Element <
|
|
f32, v4f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v4f32_#Index : Insert_Element <
|
|
f32, v4f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
}
|
|
|
|
foreach Index = 0-7 in {
|
|
def Extract_Element_v8i32_#Index : Extract_Element <
|
|
i32, v8i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v8i32_#Index : Insert_Element <
|
|
i32, v8i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
|
|
def Extract_Element_v8f32_#Index : Extract_Element <
|
|
f32, v8f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v8f32_#Index : Insert_Element <
|
|
f32, v8f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
}
|
|
|
|
foreach Index = 0-15 in {
|
|
def Extract_Element_v16i32_#Index : Extract_Element <
|
|
i32, v16i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v16i32_#Index : Insert_Element <
|
|
i32, v16i32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
|
|
def Extract_Element_v16f32_#Index : Extract_Element <
|
|
f32, v16f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
def Insert_Element_v16f32_#Index : Insert_Element <
|
|
f32, v16f32, Index, !cast<SubRegIndex>(sub#Index)
|
|
>;
|
|
}
|
|
|
|
let SubtargetPredicate = isGCN in {
|
|
|
|
// FIXME: Why do only some of these type combinations for SReg and
|
|
// VReg?
|
|
// 16-bit bitcast
|
|
def : BitConvert <i16, f16, VGPR_32>;
|
|
def : BitConvert <f16, i16, VGPR_32>;
|
|
def : BitConvert <i16, f16, SReg_32>;
|
|
def : BitConvert <f16, i16, SReg_32>;
|
|
|
|
// 32-bit bitcast
|
|
def : BitConvert <i32, f32, VGPR_32>;
|
|
def : BitConvert <f32, i32, VGPR_32>;
|
|
def : BitConvert <i32, f32, SReg_32>;
|
|
def : BitConvert <f32, i32, SReg_32>;
|
|
def : BitConvert <v2i16, i32, SReg_32>;
|
|
def : BitConvert <i32, v2i16, SReg_32>;
|
|
def : BitConvert <v2f16, i32, SReg_32>;
|
|
def : BitConvert <i32, v2f16, SReg_32>;
|
|
def : BitConvert <v2i16, v2f16, SReg_32>;
|
|
def : BitConvert <v2f16, v2i16, SReg_32>;
|
|
def : BitConvert <v2f16, f32, SReg_32>;
|
|
def : BitConvert <f32, v2f16, SReg_32>;
|
|
def : BitConvert <v2i16, f32, SReg_32>;
|
|
def : BitConvert <f32, v2i16, SReg_32>;
|
|
|
|
// 64-bit bitcast
|
|
def : BitConvert <i64, f64, VReg_64>;
|
|
def : BitConvert <f64, i64, VReg_64>;
|
|
def : BitConvert <v2i32, v2f32, VReg_64>;
|
|
def : BitConvert <v2f32, v2i32, VReg_64>;
|
|
def : BitConvert <i64, v2i32, VReg_64>;
|
|
def : BitConvert <v2i32, i64, VReg_64>;
|
|
def : BitConvert <i64, v2f32, VReg_64>;
|
|
def : BitConvert <v2f32, i64, VReg_64>;
|
|
def : BitConvert <f64, v2f32, VReg_64>;
|
|
def : BitConvert <v2f32, f64, VReg_64>;
|
|
def : BitConvert <f64, v2i32, VReg_64>;
|
|
def : BitConvert <v2i32, f64, VReg_64>;
|
|
def : BitConvert <v4i32, v4f32, VReg_128>;
|
|
def : BitConvert <v4f32, v4i32, VReg_128>;
|
|
|
|
// 128-bit bitcast
|
|
def : BitConvert <v2i64, v4i32, SReg_128>;
|
|
def : BitConvert <v4i32, v2i64, SReg_128>;
|
|
def : BitConvert <v2f64, v4f32, VReg_128>;
|
|
def : BitConvert <v2f64, v4i32, VReg_128>;
|
|
def : BitConvert <v4f32, v2f64, VReg_128>;
|
|
def : BitConvert <v4i32, v2f64, VReg_128>;
|
|
def : BitConvert <v2i64, v2f64, VReg_128>;
|
|
def : BitConvert <v2f64, v2i64, VReg_128>;
|
|
|
|
// 256-bit bitcast
|
|
def : BitConvert <v8i32, v8f32, SReg_256>;
|
|
def : BitConvert <v8f32, v8i32, SReg_256>;
|
|
def : BitConvert <v8i32, v8f32, VReg_256>;
|
|
def : BitConvert <v8f32, v8i32, VReg_256>;
|
|
|
|
// 512-bit bitcast
|
|
def : BitConvert <v16i32, v16f32, VReg_512>;
|
|
def : BitConvert <v16f32, v16i32, VReg_512>;
|
|
|
|
} // End SubtargetPredicate = isGCN
|
|
|
|
/********** =================== **********/
|
|
/********** Src & Dst modifiers **********/
|
|
/********** =================== **********/
|
|
|
|
|
|
// If denormals are not enabled, it only impacts the compare of the
|
|
// inputs. The output result is not flushed.
|
|
class ClampPat<Instruction inst, ValueType vt> : GCNPat <
|
|
(vt (AMDGPUclamp (VOP3Mods vt:$src0, i32:$src0_modifiers))),
|
|
(inst i32:$src0_modifiers, vt:$src0,
|
|
i32:$src0_modifiers, vt:$src0, DSTCLAMP.ENABLE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
def : ClampPat<V_MAX_F32_e64, f32>;
|
|
def : ClampPat<V_MAX_F64, f64>;
|
|
def : ClampPat<V_MAX_F16_e64, f16>;
|
|
|
|
def : GCNPat <
|
|
(v2f16 (AMDGPUclamp (VOP3PMods v2f16:$src0, i32:$src0_modifiers))),
|
|
(V_PK_MAX_F16 $src0_modifiers, $src0,
|
|
$src0_modifiers, $src0, DSTCLAMP.ENABLE)
|
|
>;
|
|
|
|
/********** ================================ **********/
|
|
/********** Floating point absolute/negative **********/
|
|
/********** ================================ **********/
|
|
|
|
// Prevent expanding both fneg and fabs.
|
|
|
|
def : GCNPat <
|
|
(fneg (fabs f32:$src)),
|
|
(S_OR_B32 $src, (S_MOV_B32(i32 0x80000000))) // Set sign bit
|
|
>;
|
|
|
|
// FIXME: Should use S_OR_B32
|
|
def : GCNPat <
|
|
(fneg (fabs f64:$src)),
|
|
(REG_SEQUENCE VReg_64,
|
|
(i32 (EXTRACT_SUBREG f64:$src, sub0)),
|
|
sub0,
|
|
(V_OR_B32_e32 (i32 (EXTRACT_SUBREG f64:$src, sub1)),
|
|
(V_MOV_B32_e32 (i32 0x80000000))), // Set sign bit.
|
|
sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fabs f32:$src),
|
|
(V_AND_B32_e64 $src, (V_MOV_B32_e32 (i32 0x7fffffff)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fneg f32:$src),
|
|
(V_XOR_B32_e32 $src, (V_MOV_B32_e32 (i32 0x80000000)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fabs f64:$src),
|
|
(REG_SEQUENCE VReg_64,
|
|
(i32 (EXTRACT_SUBREG f64:$src, sub0)),
|
|
sub0,
|
|
(V_AND_B32_e64 (i32 (EXTRACT_SUBREG f64:$src, sub1)),
|
|
(V_MOV_B32_e32 (i32 0x7fffffff))), // Set sign bit.
|
|
sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fneg f64:$src),
|
|
(REG_SEQUENCE VReg_64,
|
|
(i32 (EXTRACT_SUBREG f64:$src, sub0)),
|
|
sub0,
|
|
(V_XOR_B32_e32 (i32 (EXTRACT_SUBREG f64:$src, sub1)),
|
|
(i32 (V_MOV_B32_e32 (i32 0x80000000)))),
|
|
sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fcopysign f16:$src0, f16:$src1),
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x00007fff)), $src0, $src1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fcopysign f32:$src0, f16:$src1),
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x7fffffff)), $src0,
|
|
(V_LSHLREV_B32_e64 (i32 16), $src1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fcopysign f64:$src0, f16:$src1),
|
|
(REG_SEQUENCE SReg_64,
|
|
(i32 (EXTRACT_SUBREG $src0, sub0)), sub0,
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x7fffffff)), (i32 (EXTRACT_SUBREG $src0, sub1)),
|
|
(V_LSHLREV_B32_e64 (i32 16), $src1)), sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fcopysign f16:$src0, f32:$src1),
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x00007fff)), $src0,
|
|
(V_LSHRREV_B32_e64 (i32 16), $src1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fcopysign f16:$src0, f64:$src1),
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x00007fff)), $src0,
|
|
(V_LSHRREV_B32_e64 (i32 16), (EXTRACT_SUBREG $src1, sub1)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fneg f16:$src),
|
|
(V_XOR_B32_e32 $src, (V_MOV_B32_e32 (i32 0x00008000)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fabs f16:$src),
|
|
(V_AND_B32_e64 $src, (V_MOV_B32_e32 (i32 0x00007fff)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fneg (fabs f16:$src)),
|
|
(S_OR_B32 $src, (S_MOV_B32 (i32 0x00008000))) // Set sign bit
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fneg v2f16:$src),
|
|
(V_XOR_B32_e64 (S_MOV_B32 (i32 0x80008000)), $src)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(fabs v2f16:$src),
|
|
(V_AND_B32_e64 (S_MOV_B32 (i32 0x7fff7fff)), $src)
|
|
>;
|
|
|
|
// This is really (fneg (fabs v2f16:$src))
|
|
//
|
|
// fabs is not reported as free because there is modifier for it in
|
|
// VOP3P instructions, so it is turned into the bit op.
|
|
def : GCNPat <
|
|
(fneg (v2f16 (bitconvert (and_oneuse i32:$src, 0x7fff7fff)))),
|
|
(S_OR_B32 (S_MOV_B32 (i32 0x80008000)), $src) // Set sign bit
|
|
>;
|
|
|
|
/********** ================== **********/
|
|
/********** Immediate Patterns **********/
|
|
/********** ================== **********/
|
|
|
|
def : GCNPat <
|
|
(VGPRImm<(i32 imm)>:$imm),
|
|
(V_MOV_B32_e32 imm:$imm)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(VGPRImm<(f32 fpimm)>:$imm),
|
|
(V_MOV_B32_e32 (f32 (bitcast_fpimm_to_i32 $imm)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i32 imm:$imm),
|
|
(S_MOV_B32 imm:$imm)
|
|
>;
|
|
|
|
// FIXME: Workaround for ordering issue with peephole optimizer where
|
|
// a register class copy interferes with immediate folding. Should
|
|
// use s_mov_b32, which can be shrunk to s_movk_i32
|
|
def : GCNPat <
|
|
(VGPRImm<(f16 fpimm)>:$imm),
|
|
(V_MOV_B32_e32 (f16 (bitcast_fpimm_to_i32 $imm)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 fpimm:$imm),
|
|
(S_MOV_B32 (f32 (bitcast_fpimm_to_i32 $imm)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f16 fpimm:$imm),
|
|
(S_MOV_B32 (i32 (bitcast_fpimm_to_i32 $imm)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i32 frameindex:$fi),
|
|
(V_MOV_B32_e32 (i32 (frameindex_to_targetframeindex $fi)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 InlineImm<i64>:$imm),
|
|
(S_MOV_B64 InlineImm<i64>:$imm)
|
|
>;
|
|
|
|
// XXX - Should this use a s_cmp to set SCC?
|
|
|
|
// Set to sign-extended 64-bit value (true = -1, false = 0)
|
|
def : GCNPat <
|
|
(i1 imm:$imm),
|
|
(S_MOV_B64 (i64 (as_i64imm $imm)))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f64 InlineFPImm<f64>:$imm),
|
|
(S_MOV_B64 (f64 (bitcast_fpimm_to_i64 InlineFPImm<f64>:$imm)))
|
|
>;
|
|
|
|
/********** ================== **********/
|
|
/********** Intrinsic Patterns **********/
|
|
/********** ================== **********/
|
|
|
|
let SubtargetPredicate = isGCN in {
|
|
def : POW_Common <V_LOG_F32_e32, V_EXP_F32_e32, V_MUL_LEGACY_F32_e32>;
|
|
}
|
|
|
|
def : GCNPat <
|
|
(i32 (sext i1:$src0)),
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 -1), $src0)
|
|
>;
|
|
|
|
class Ext32Pat <SDNode ext> : GCNPat <
|
|
(i32 (ext i1:$src0)),
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 1), $src0)
|
|
>;
|
|
|
|
def : Ext32Pat <zext>;
|
|
def : Ext32Pat <anyext>;
|
|
|
|
// The multiplication scales from [0,1] to the unsigned integer range
|
|
def : GCNPat <
|
|
(AMDGPUurecip i32:$src0),
|
|
(V_CVT_U32_F32_e32
|
|
(V_MUL_F32_e32 (i32 CONST.FP_UINT_MAX_PLUS_1),
|
|
(V_RCP_IFLAG_F32_e32 (V_CVT_F32_U32_e32 $src0))))
|
|
>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// VOP3 Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
let SubtargetPredicate = isGCN in {
|
|
|
|
def : IMad24Pat<V_MAD_I32_I24, 1>;
|
|
def : UMad24Pat<V_MAD_U32_U24, 1>;
|
|
|
|
defm : BFIPatterns <V_BFI_B32, S_MOV_B32, SReg_64>;
|
|
def : ROTRPattern <V_ALIGNBIT_B32>;
|
|
|
|
}
|
|
|
|
def : GCNPat<(i32 (trunc (srl i64:$src0, (and i32:$src1, (i32 31))))),
|
|
(V_ALIGNBIT_B32 (i32 (EXTRACT_SUBREG (i64 $src0), sub1)),
|
|
(i32 (EXTRACT_SUBREG (i64 $src0), sub0)), $src1)>;
|
|
|
|
def : GCNPat<(i32 (trunc (srl i64:$src0, (i32 ShiftAmt32Imm:$src1)))),
|
|
(V_ALIGNBIT_B32 (i32 (EXTRACT_SUBREG (i64 $src0), sub1)),
|
|
(i32 (EXTRACT_SUBREG (i64 $src0), sub0)), $src1)>;
|
|
|
|
/********** ====================== **********/
|
|
/********** Indirect addressing **********/
|
|
/********** ====================== **********/
|
|
|
|
multiclass SI_INDIRECT_Pattern <ValueType vt, ValueType eltvt, string VecSize> {
|
|
// Extract with offset
|
|
def : GCNPat<
|
|
(eltvt (extractelt vt:$src, (MOVRELOffset i32:$idx, (i32 imm:$offset)))),
|
|
(!cast<Instruction>("SI_INDIRECT_SRC_"#VecSize) $src, $idx, imm:$offset)
|
|
>;
|
|
|
|
// Insert with offset
|
|
def : GCNPat<
|
|
(insertelt vt:$src, eltvt:$val, (MOVRELOffset i32:$idx, (i32 imm:$offset))),
|
|
(!cast<Instruction>("SI_INDIRECT_DST_"#VecSize) $src, $idx, imm:$offset, $val)
|
|
>;
|
|
}
|
|
|
|
defm : SI_INDIRECT_Pattern <v2f32, f32, "V2">;
|
|
defm : SI_INDIRECT_Pattern <v4f32, f32, "V4">;
|
|
defm : SI_INDIRECT_Pattern <v8f32, f32, "V8">;
|
|
defm : SI_INDIRECT_Pattern <v16f32, f32, "V16">;
|
|
|
|
defm : SI_INDIRECT_Pattern <v2i32, i32, "V2">;
|
|
defm : SI_INDIRECT_Pattern <v4i32, i32, "V4">;
|
|
defm : SI_INDIRECT_Pattern <v8i32, i32, "V8">;
|
|
defm : SI_INDIRECT_Pattern <v16i32, i32, "V16">;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// SAD Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
def : GCNPat <
|
|
(add (sub_oneuse (umax i32:$src0, i32:$src1),
|
|
(umin i32:$src0, i32:$src1)),
|
|
i32:$src2),
|
|
(V_SAD_U32 $src0, $src1, $src2, (i1 0))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(add (select_oneuse (i1 (setugt i32:$src0, i32:$src1)),
|
|
(sub i32:$src0, i32:$src1),
|
|
(sub i32:$src1, i32:$src0)),
|
|
i32:$src2),
|
|
(V_SAD_U32 $src0, $src1, $src2, (i1 0))
|
|
>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Conversion Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
def : GCNPat<(i32 (sext_inreg i32:$src, i1)),
|
|
(S_BFE_I32 i32:$src, (i32 65536))>; // 0 | 1 << 16
|
|
|
|
// Handle sext_inreg in i64
|
|
def : GCNPat <
|
|
(i64 (sext_inreg i64:$src, i1)),
|
|
(S_BFE_I64 i64:$src, (i32 0x10000)) // 0 | 1 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i16 (sext_inreg i16:$src, i1)),
|
|
(S_BFE_I32 $src, (i32 0x00010000)) // 0 | 1 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i16 (sext_inreg i16:$src, i8)),
|
|
(S_BFE_I32 $src, (i32 0x80000)) // 0 | 8 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (sext_inreg i64:$src, i8)),
|
|
(S_BFE_I64 i64:$src, (i32 0x80000)) // 0 | 8 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (sext_inreg i64:$src, i16)),
|
|
(S_BFE_I64 i64:$src, (i32 0x100000)) // 0 | 16 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (sext_inreg i64:$src, i32)),
|
|
(S_BFE_I64 i64:$src, (i32 0x200000)) // 0 | 32 << 16
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (zext i32:$src)),
|
|
(REG_SEQUENCE SReg_64, $src, sub0, (S_MOV_B32 (i32 0)), sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (anyext i32:$src)),
|
|
(REG_SEQUENCE SReg_64, $src, sub0, (i32 (IMPLICIT_DEF)), sub1)
|
|
>;
|
|
|
|
class ZExt_i64_i1_Pat <SDNode ext> : GCNPat <
|
|
(i64 (ext i1:$src)),
|
|
(REG_SEQUENCE VReg_64,
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 1), $src), sub0,
|
|
(S_MOV_B32 (i32 0)), sub1)
|
|
>;
|
|
|
|
|
|
def : ZExt_i64_i1_Pat<zext>;
|
|
def : ZExt_i64_i1_Pat<anyext>;
|
|
|
|
// FIXME: We need to use COPY_TO_REGCLASS to work-around the fact that
|
|
// REG_SEQUENCE patterns don't support instructions with multiple outputs.
|
|
def : GCNPat <
|
|
(i64 (sext i32:$src)),
|
|
(REG_SEQUENCE SReg_64, $src, sub0,
|
|
(i32 (COPY_TO_REGCLASS (S_ASHR_I32 $src, (i32 31)), SReg_32_XM0)), sub1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i64 (sext i1:$src)),
|
|
(REG_SEQUENCE VReg_64,
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 -1), $src), sub0,
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 -1), $src), sub1)
|
|
>;
|
|
|
|
class FPToI1Pat<Instruction Inst, int KOne, ValueType kone_type, ValueType vt, SDPatternOperator fp_to_int> : GCNPat <
|
|
(i1 (fp_to_int (vt (VOP3Mods vt:$src0, i32:$src0_modifiers)))),
|
|
(i1 (Inst 0, (kone_type KOne), $src0_modifiers, $src0, DSTCLAMP.NONE))
|
|
>;
|
|
|
|
def : FPToI1Pat<V_CMP_EQ_F32_e64, CONST.FP32_ONE, i32, f32, fp_to_uint>;
|
|
def : FPToI1Pat<V_CMP_EQ_F32_e64, CONST.FP32_NEG_ONE, i32, f32, fp_to_sint>;
|
|
def : FPToI1Pat<V_CMP_EQ_F64_e64, CONST.FP64_ONE, i64, f64, fp_to_uint>;
|
|
def : FPToI1Pat<V_CMP_EQ_F64_e64, CONST.FP64_NEG_ONE, i64, f64, fp_to_sint>;
|
|
|
|
// If we need to perform a logical operation on i1 values, we need to
|
|
// use vector comparisons since there is only one SCC register. Vector
|
|
// comparisons still write to a pair of SGPRs, so treat these as
|
|
// 64-bit comparisons. When legalizing SGPR copies, instructions
|
|
// resulting in the copies from SCC to these instructions will be
|
|
// moved to the VALU.
|
|
def : GCNPat <
|
|
(i1 (and i1:$src0, i1:$src1)),
|
|
(S_AND_B64 $src0, $src1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i1 (or i1:$src0, i1:$src1)),
|
|
(S_OR_B64 $src0, $src1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i1 (xor i1:$src0, i1:$src1)),
|
|
(S_XOR_B64 $src0, $src1)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 (sint_to_fp i1:$src)),
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 CONST.FP32_NEG_ONE), $src)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f32 (uint_to_fp i1:$src)),
|
|
(V_CNDMASK_B32_e64 (i32 0), (i32 CONST.FP32_ONE), $src)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f64 (sint_to_fp i1:$src)),
|
|
(V_CVT_F64_I32_e32 (V_CNDMASK_B32_e64 (i32 0), (i32 -1), $src))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(f64 (uint_to_fp i1:$src)),
|
|
(V_CVT_F64_U32_e32 (V_CNDMASK_B32_e64 (i32 0), (i32 1), $src))
|
|
>;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Miscellaneous Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
def : GCNPat <
|
|
(i32 (AMDGPUfp16_zext f16:$src)),
|
|
(COPY $src)
|
|
>;
|
|
|
|
|
|
def : GCNPat <
|
|
(i32 (trunc i64:$a)),
|
|
(EXTRACT_SUBREG $a, sub0)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i1 (trunc i32:$a)),
|
|
(V_CMP_EQ_U32_e64 (S_AND_B32 (i32 1), $a), (i32 1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i1 (trunc i16:$a)),
|
|
(V_CMP_EQ_U32_e64 (S_AND_B32 (i32 1), $a), (i32 1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i1 (trunc i64:$a)),
|
|
(V_CMP_EQ_U32_e64 (S_AND_B32 (i32 1),
|
|
(i32 (EXTRACT_SUBREG $a, sub0))), (i32 1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(i32 (bswap i32:$a)),
|
|
(V_BFI_B32 (S_MOV_B32 (i32 0x00ff00ff)),
|
|
(V_ALIGNBIT_B32 $a, $a, (i32 24)),
|
|
(V_ALIGNBIT_B32 $a, $a, (i32 8)))
|
|
>;
|
|
|
|
let OtherPredicates = [NoFP16Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
|
|
(V_MUL_F16_e64 0, (i32 CONST.FP16_ONE), $src_mods, $src, 0, 0)
|
|
>;
|
|
|
|
def : GCNPat<
|
|
(fcanonicalize (v2f16 (VOP3PMods v2f16:$src, i32:$src_mods))),
|
|
(V_PK_MUL_F16 0, (i32 CONST.V2FP16_ONE), $src_mods, $src, DSTCLAMP.NONE)
|
|
>;
|
|
}
|
|
|
|
let OtherPredicates = [FP16Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f16 (VOP3Mods f16:$src, i32:$src_mods))),
|
|
(V_MAX_F16_e64 $src_mods, $src, $src_mods, $src, 0, 0)
|
|
>;
|
|
|
|
def : GCNPat<
|
|
(fcanonicalize (v2f16 (VOP3PMods v2f16:$src, i32:$src_mods))),
|
|
(V_PK_MAX_F16 $src_mods, $src, $src_mods, $src, DSTCLAMP.NONE)
|
|
>;
|
|
}
|
|
|
|
let OtherPredicates = [NoFP32Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f32 (VOP3Mods f32:$src, i32:$src_mods))),
|
|
(V_MUL_F32_e64 0, (i32 CONST.FP32_ONE), $src_mods, $src, 0, 0)
|
|
>;
|
|
}
|
|
|
|
let OtherPredicates = [FP32Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f32 (VOP3Mods f32:$src, i32:$src_mods))),
|
|
(V_MAX_F32_e64 $src_mods, $src, $src_mods, $src, 0, 0)
|
|
>;
|
|
}
|
|
|
|
let OtherPredicates = [NoFP64Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f64 (VOP3Mods f64:$src, i32:$src_mods))),
|
|
(V_MUL_F64 0, CONST.FP64_ONE, $src_mods, $src, 0, 0)
|
|
>;
|
|
}
|
|
|
|
let OtherPredicates = [FP64Denormals] in {
|
|
def : GCNPat<
|
|
(fcanonicalize (f64 (VOP3Mods f64:$src, i32:$src_mods))),
|
|
(V_MAX_F64 $src_mods, $src, $src_mods, $src, 0, 0)
|
|
>;
|
|
}
|
|
|
|
|
|
// Allow integer inputs
|
|
class ExpPattern<SDPatternOperator node, ValueType vt, Instruction Inst> : GCNPat<
|
|
(node (i8 timm:$tgt), (i8 timm:$en), vt:$src0, vt:$src1, vt:$src2, vt:$src3, (i1 timm:$compr), (i1 timm:$vm)),
|
|
(Inst i8:$tgt, vt:$src0, vt:$src1, vt:$src2, vt:$src3, i1:$vm, i1:$compr, i8:$en)
|
|
>;
|
|
|
|
def : ExpPattern<AMDGPUexport, i32, EXP>;
|
|
def : ExpPattern<AMDGPUexport_done, i32, EXP_DONE>;
|
|
|
|
def : GCNPat <
|
|
(v2i16 (build_vector i16:$src0, i16:$src1)),
|
|
(v2i16 (S_PACK_LL_B32_B16 $src0, $src1))
|
|
>;
|
|
|
|
// COPY_TO_REGCLASS is workaround tablegen bug from multiple outputs
|
|
// from S_LSHL_B32's multiple outputs from implicit scc def.
|
|
def : GCNPat <
|
|
(v2i16 (build_vector (i16 0), i16:$src1)),
|
|
(v2i16 (COPY_TO_REGCLASS (S_LSHL_B32 i16:$src1, (i16 16)), SReg_32_XM0))
|
|
>;
|
|
|
|
// With multiple uses of the shift, this will duplicate the shift and
|
|
// increase register pressure.
|
|
def : GCNPat <
|
|
(v2i16 (build_vector i16:$src0, (i16 (trunc (srl_oneuse i32:$src1, (i32 16)))))),
|
|
(v2i16 (S_PACK_LH_B32_B16 i16:$src0, i32:$src1))
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(v2i16 (build_vector (i16 (trunc (srl_oneuse i32:$src0, (i32 16)))),
|
|
(i16 (trunc (srl_oneuse i32:$src1, (i32 16)))))),
|
|
(v2i16 (S_PACK_HH_B32_B16 $src0, $src1))
|
|
>;
|
|
|
|
// TODO: Should source modifiers be matched to v_pack_b32_f16?
|
|
def : GCNPat <
|
|
(v2f16 (build_vector f16:$src0, f16:$src1)),
|
|
(v2f16 (S_PACK_LL_B32_B16 $src0, $src1))
|
|
>;
|
|
|
|
// def : GCNPat <
|
|
// (v2f16 (scalar_to_vector f16:$src0)),
|
|
// (COPY $src0)
|
|
// >;
|
|
|
|
// def : GCNPat <
|
|
// (v2i16 (scalar_to_vector i16:$src0)),
|
|
// (COPY $src0)
|
|
// >;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Fract Patterns
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
let SubtargetPredicate = isSI in {
|
|
|
|
// V_FRACT is buggy on SI, so the F32 version is never used and (x-floor(x)) is
|
|
// used instead. However, SI doesn't have V_FLOOR_F64, so the most efficient
|
|
// way to implement it is using V_FRACT_F64.
|
|
// The workaround for the V_FRACT bug is:
|
|
// fract(x) = isnan(x) ? x : min(V_FRACT(x), 0.99999999999999999)
|
|
|
|
// Convert floor(x) to (x - fract(x))
|
|
def : GCNPat <
|
|
(f64 (ffloor (f64 (VOP3Mods f64:$x, i32:$mods)))),
|
|
(V_ADD_F64
|
|
$mods,
|
|
$x,
|
|
SRCMODS.NEG,
|
|
(V_CNDMASK_B64_PSEUDO
|
|
(V_MIN_F64
|
|
SRCMODS.NONE,
|
|
(V_FRACT_F64_e64 $mods, $x, DSTCLAMP.NONE, DSTOMOD.NONE),
|
|
SRCMODS.NONE,
|
|
(V_MOV_B64_PSEUDO 0x3fefffffffffffff),
|
|
DSTCLAMP.NONE, DSTOMOD.NONE),
|
|
$x,
|
|
(V_CMP_CLASS_F64_e64 SRCMODS.NONE, $x, (i32 3 /*NaN*/))),
|
|
DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
} // End SubtargetPredicates = isSI
|
|
|
|
//============================================================================//
|
|
// Miscellaneous Optimization Patterns
|
|
//============================================================================//
|
|
|
|
// Undo sub x, c -> add x, -c canonicalization since c is more likely
|
|
// an inline immediate than -c.
|
|
// TODO: Also do for 64-bit.
|
|
def : GCNPat<
|
|
(add i32:$src0, (i32 NegSubInlineConst32:$src1)),
|
|
(S_SUB_I32 $src0, NegSubInlineConst32:$src1)
|
|
>;
|
|
|
|
|
|
multiclass BFMPatterns <ValueType vt, InstSI BFM, InstSI MOV> {
|
|
def : GCNPat <
|
|
(vt (shl (vt (add (vt (shl 1, vt:$a)), -1)), vt:$b)),
|
|
(BFM $a, $b)
|
|
>;
|
|
|
|
def : GCNPat <
|
|
(vt (add (vt (shl 1, vt:$a)), -1)),
|
|
(BFM $a, (MOV (i32 0)))
|
|
>;
|
|
}
|
|
|
|
let SubtargetPredicate = isGCN in {
|
|
|
|
defm : BFMPatterns <i32, S_BFM_B32, S_MOV_B32>;
|
|
// FIXME: defm : BFMPatterns <i64, S_BFM_B64, S_MOV_B64>;
|
|
|
|
defm : BFEPattern <V_BFE_U32, V_BFE_I32, S_MOV_B32>;
|
|
def : SHA256MaPattern <V_BFI_B32, V_XOR_B32_e64>;
|
|
|
|
def : IntMed3Pat<V_MED3_I32, smax, smax_oneuse, smin_oneuse>;
|
|
def : IntMed3Pat<V_MED3_U32, umax, umax_oneuse, umin_oneuse>;
|
|
|
|
}
|
|
|
|
// This matches 16 permutations of
|
|
// max(min(x, y), min(max(x, y), z))
|
|
class FPMed3Pat<ValueType vt,
|
|
Instruction med3Inst> : GCNPat<
|
|
(fmaxnum (fminnum_oneuse (VOP3Mods_nnan vt:$src0, i32:$src0_mods),
|
|
(VOP3Mods_nnan vt:$src1, i32:$src1_mods)),
|
|
(fminnum_oneuse (fmaxnum_oneuse (VOP3Mods_nnan vt:$src0, i32:$src0_mods),
|
|
(VOP3Mods_nnan vt:$src1, i32:$src1_mods)),
|
|
(vt (VOP3Mods_nnan vt:$src2, i32:$src2_mods)))),
|
|
(med3Inst $src0_mods, $src0, $src1_mods, $src1, $src2_mods, $src2, DSTCLAMP.NONE, DSTOMOD.NONE)
|
|
>;
|
|
|
|
class FP16Med3Pat<ValueType vt,
|
|
Instruction med3Inst> : GCNPat<
|
|
(fmaxnum (fminnum_oneuse (VOP3Mods_nnan vt:$src0, i32:$src0_mods),
|
|
(VOP3Mods_nnan vt:$src1, i32:$src1_mods)),
|
|
(fminnum_oneuse (fmaxnum_oneuse (VOP3Mods_nnan vt:$src0, i32:$src0_mods),
|
|
(VOP3Mods_nnan vt:$src1, i32:$src1_mods)),
|
|
(vt (VOP3Mods_nnan vt:$src2, i32:$src2_mods)))),
|
|
(med3Inst $src0_mods, $src0, $src1_mods, $src1, $src2_mods, $src2, DSTCLAMP.NONE)
|
|
>;
|
|
|
|
class Int16Med3Pat<Instruction med3Inst,
|
|
SDPatternOperator max,
|
|
SDPatternOperator max_oneuse,
|
|
SDPatternOperator min_oneuse,
|
|
ValueType vt = i32> : GCNPat<
|
|
(max (min_oneuse vt:$src0, vt:$src1),
|
|
(min_oneuse (max_oneuse vt:$src0, vt:$src1), vt:$src2)),
|
|
(med3Inst SRCMODS.NONE, $src0, SRCMODS.NONE, $src1, SRCMODS.NONE, $src2, DSTCLAMP.NONE)
|
|
>;
|
|
|
|
def : FPMed3Pat<f32, V_MED3_F32>;
|
|
|
|
let OtherPredicates = [isGFX9] in {
|
|
def : FP16Med3Pat<f16, V_MED3_F16>;
|
|
def : Int16Med3Pat<V_MED3_I16, smax, smax_oneuse, smin_oneuse, i16>;
|
|
def : Int16Med3Pat<V_MED3_U16, umax, umax_oneuse, umin_oneuse, i16>;
|
|
} // End Predicates = [isGFX9]
|
|
|
|
//============================================================================//
|
|
// Assembler aliases
|
|
//============================================================================//
|
|
|
|
multiclass NoCarryAlias<string Inst,
|
|
Instruction Inst32NC, Instruction Inst64NC,
|
|
Instruction Inst32CO, Instruction Inst64CO> {
|
|
def : InstAlias<Inst#" $vdst, $src0, $src1",
|
|
(Inst32NC VGPR_32:$vdst, VSrc_b32:$src0, VGPR_32:$src1), 1000>,
|
|
Requires<[HasAddNoCarryInsts]>;
|
|
|
|
def : InstAlias<Inst#" $vdst, $src0, $src1",
|
|
(Inst64NC VGPR_32:$vdst, VCSrc_b32:$src0, VCSrc_b32:$src1), -10>,
|
|
Requires<[HasAddNoCarryInsts]>;
|
|
|
|
def : InstAlias<Inst#" $vdst, vcc, $src0, $src1",
|
|
(Inst32CO VGPR_32:$vdst, VSrc_b32:$src0, VGPR_32:$src1), 1000>,
|
|
Requires<[HasAddNoCarryInsts]>;
|
|
|
|
def : InstAlias<Inst#" $vdst, $sdst, $src0, $src1",
|
|
(Inst64CO VGPR_32:$vdst, SReg_64:$sdst, VSrc_b32:$src0, VGPR_32:$src1), -10>,
|
|
Requires<[HasAddNoCarryInsts]>;
|
|
}
|
|
|
|
// gfx9 made a mess of add instruction names. The existing add
|
|
// instructions add _co added to the names, and their old names were
|
|
// repurposed to a version without carry out.
|
|
// TODO: Do we need SubtargetPredicates for MnemonicAliases?
|
|
let Predicates = [HasAddNoCarryInsts] in {
|
|
defm : NoCarryAlias<"v_add_u32", V_ADD_U32_e32_vi, V_ADD_U32_e64_vi,
|
|
V_ADD_I32_e32_vi, V_ADD_I32_e64_vi>;
|
|
defm : NoCarryAlias<"v_sub_u32", V_SUB_U32_e32_vi, V_SUB_U32_e64_vi,
|
|
V_SUB_I32_e32_vi, V_SUB_I32_e64_vi>;
|
|
defm : NoCarryAlias<"v_subrev_u32",
|
|
V_SUBREV_U32_e32_vi, V_SUBREV_U32_e64_vi,
|
|
V_SUBREV_I32_e32_vi, V_SUBREV_I32_e64_vi>;
|
|
}
|
|
|
|
let Predicates = [NotHasAddNoCarryInsts] in {
|
|
def : MnemonicAlias<"v_add_u32", "v_add_i32">;
|
|
def : MnemonicAlias<"v_sub_u32", "v_sub_i32">;
|
|
def : MnemonicAlias<"v_subrev_u32", "v_subrev_i32">;
|
|
}
|