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f2f87b751f
Summary: This is essentially a rewrite of the backend which introduces TableGen base classes GenericEnum, GenericTable, and SearchIndex. They allow generating custom enums and tables with lookup functions using separately defined records as the underlying database. Also added as part of this change: - Lookup functions may use indices composed of multiple fields. - Instruction fields are supported similar to Intrinsic fields. - When the lookup key has contiguous numeric values, the lookup function will directly index into the table instead of using a binary search. The existing SearchableTable functionality is internally mapped to the new primitives. Change-Id: I444f3490fa1dbfb262d7286a1660a2c4308e9932 Reviewers: arsenm, tra, t.p.northover Subscribers: wdng, llvm-commits Differential Revision: https://reviews.llvm.org/D48013 llvm-svn: 335225
87 lines
2.6 KiB
TableGen
87 lines
2.6 KiB
TableGen
// RUN: llvm-tblgen -gen-searchable-tables -I %p/../../include %s | FileCheck %s
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// XFAIL: vg_leak
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include "llvm/TableGen/SearchableTable.td"
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class IntrinsicProperty;
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class SDNodeProperty;
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class ValueType<int size, int value> {
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string Namespace = "MVT";
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int Size = size;
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int Value = value;
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}
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class LLVMType<ValueType vt> {
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ValueType VT = vt;
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}
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class Intrinsic<list<LLVMType> param_types = []> {
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string LLVMName = "";
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bit isTarget = 0;
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string TargetPrefix = "";
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list<LLVMType> RetTypes = [];
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list<LLVMType> ParamTypes = param_types;
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list<IntrinsicProperty> IntrProperties = [];
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list<SDNodeProperty> Properties = [];
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}
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def iAny : ValueType<0, 253>;
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def llvm_anyint_ty : LLVMType<iAny>;
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def int_abc : Intrinsic<[llvm_anyint_ty]>;
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def int_xyz : Intrinsic<[llvm_anyint_ty]>;
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let isTarget = 1, TargetPrefix = "gtarget" in {
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def int_gtarget_def : Intrinsic<[llvm_anyint_ty]>;
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def int_gtarget_defg : Intrinsic<[llvm_anyint_ty]>;
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def int_gtarget_uvw : Intrinsic<[llvm_anyint_ty]>;
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}
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let isTarget = 1, TargetPrefix = "ftarget" in {
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def int_ftarget_ghi : Intrinsic<[llvm_anyint_ty]>;
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def int_ftarget_ghi_x : Intrinsic<[llvm_anyint_ty]>;
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def int_ftarget_rst : Intrinsic<[llvm_anyint_ty]>;
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}
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class Table<Intrinsic intr, int payload> : SearchableTable {
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let SearchableFields = ["Intr"];
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let EnumNameField = ?;
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Intrinsic Intr = !cast<Intrinsic>(intr);
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bits<16> Payload = payload;
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}
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// CHECK-LABEL: TablesList[] = {
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// CHECK-DAG: { Intrinsic::abc, 0x0 },
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// CHECK-DAG: { Intrinsic::xyz, 0x1 },
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// CHECK-DAG: { Intrinsic::gtarget_def, 0x10 },
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// CHECK-DAG: { Intrinsic::gtarget_defg, 0x11 },
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// CHECK-DAG: { Intrinsic::gtarget_uvw, 0x12 },
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// CHECK-DAG: { Intrinsic::ftarget_ghi, 0x20 },
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// CHECK-DAG: { Intrinsic::ftarget_ghi_x, 0x21 },
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// CHECK-DAG: { Intrinsic::ftarget_rst, 0x22 },
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// Check that the index is in the correct order, consistent with the ordering
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// of enums: alphabetically, but target intrinsics after generic intrinsics
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//
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// CHECK-LABEL: lookupTableByIntr(unsigned Intr) {
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// CHECK: Index[] = {
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// CHECK-NEXT: Intrinsic::abc
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// CHECK-NEXT: Intrinsic::xyz
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// CHECK-NEXT: Intrinsic::ftarget_ghi
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// CHECK-NEXT: Intrinsic::ftarget_ghi_x
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// CHECK-NEXT: Intrinsic::ftarget_rst
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// CHECK-NEXT: Intrinsic::gtarget_def
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// CHECK-NEXT: Intrinsic::gtarget_defg
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// CHECK-NEXT: Intrinsic::gtarget_uvw
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def : Table<int_abc, 0x0>;
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def : Table<int_xyz, 0x1>;
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def : Table<int_gtarget_def, 0x10>;
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def : Table<int_gtarget_defg, 0x11>;
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def : Table<int_gtarget_uvw, 0x12>;
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def : Table<int_ftarget_ghi, 0x20>;
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def : Table<int_ftarget_ghi_x, 0x21>;
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def : Table<int_ftarget_rst, 0x22>;
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