Description: Rename file  
Author: NoisyCoil <noisycoil@tutanota.com>

---

--- /dev/null
+++ rust-capstone-sys-0.15.0/capstone/suite/synctools/tablegen/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
@@ -0,0 +1,131 @@
+//===- TargetGlobalISel.td - Common code for GlobalISel ----*- tablegen -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines the target-independent interfaces used to support
+// SelectionDAG instruction selection patterns (specified in
+// TargetSelectionDAG.td) when generating GlobalISel instruction selectors.
+//
+// This is intended as a compatibility layer, to enable reuse of target
+// descriptions written for SelectionDAG without requiring explicit GlobalISel
+// support.  It will eventually supersede SelectionDAG patterns.
+//
+//===----------------------------------------------------------------------===//
+
+// Declare that a generic Instruction is 'equivalent' to an SDNode, that is,
+// SelectionDAG patterns involving the SDNode can be transformed to match the
+// Instruction instead.
+class GINodeEquiv<Instruction i, SDNode node> {
+  Instruction I = i;
+  SDNode Node = node;
+
+  // SelectionDAG has separate nodes for atomic and non-atomic memory operations
+  // (ISD::LOAD, ISD::ATOMIC_LOAD, ISD::STORE, ISD::ATOMIC_STORE) but GlobalISel
+  // stores this information in the MachineMemoryOperand.
+  bit CheckMMOIsNonAtomic = 0;
+
+  // SelectionDAG has one node for all loads and uses predicates to
+  // differentiate them. GlobalISel on the other hand uses separate opcodes.
+  // When this is true, the resulting opcode is G_LOAD/G_SEXTLOAD/G_ZEXTLOAD
+  // depending on the predicates on the node.
+  Instruction IfSignExtend = ?;
+  Instruction IfZeroExtend = ?;
+}
+
+// These are defined in the same order as the G_* instructions.
+def : GINodeEquiv<G_ANYEXT, anyext>;
+def : GINodeEquiv<G_SEXT, sext>;
+def : GINodeEquiv<G_ZEXT, zext>;
+def : GINodeEquiv<G_TRUNC, trunc>;
+def : GINodeEquiv<G_BITCAST, bitconvert>;
+// G_INTTOPTR - SelectionDAG has no equivalent.
+// G_PTRTOINT - SelectionDAG has no equivalent.
+def : GINodeEquiv<G_CONSTANT, imm>;
+def : GINodeEquiv<G_FCONSTANT, fpimm>;
+def : GINodeEquiv<G_ADD, add>;
+def : GINodeEquiv<G_SUB, sub>;
+def : GINodeEquiv<G_MUL, mul>;
+def : GINodeEquiv<G_SDIV, sdiv>;
+def : GINodeEquiv<G_UDIV, udiv>;
+def : GINodeEquiv<G_SREM, srem>;
+def : GINodeEquiv<G_UREM, urem>;
+def : GINodeEquiv<G_AND, and>;
+def : GINodeEquiv<G_OR, or>;
+def : GINodeEquiv<G_XOR, xor>;
+def : GINodeEquiv<G_SHL, shl>;
+def : GINodeEquiv<G_LSHR, srl>;
+def : GINodeEquiv<G_ASHR, sra>;
+def : GINodeEquiv<G_SELECT, select>;
+def : GINodeEquiv<G_FNEG, fneg>;
+def : GINodeEquiv<G_FPEXT, fpextend>;
+def : GINodeEquiv<G_FPTRUNC, fpround>;
+def : GINodeEquiv<G_FPTOSI, fp_to_sint>;
+def : GINodeEquiv<G_FPTOUI, fp_to_uint>;
+def : GINodeEquiv<G_SITOFP, sint_to_fp>;
+def : GINodeEquiv<G_UITOFP, uint_to_fp>;
+def : GINodeEquiv<G_FADD, fadd>;
+def : GINodeEquiv<G_FSUB, fsub>;
+def : GINodeEquiv<G_FMA, fma>;
+def : GINodeEquiv<G_FMUL, fmul>;
+def : GINodeEquiv<G_FDIV, fdiv>;
+def : GINodeEquiv<G_FREM, frem>;
+def : GINodeEquiv<G_FPOW, fpow>;
+def : GINodeEquiv<G_FEXP2, fexp2>;
+def : GINodeEquiv<G_FLOG2, flog2>;
+def : GINodeEquiv<G_INTRINSIC, intrinsic_wo_chain>;
+// ISD::INTRINSIC_VOID can also be handled with G_INTRINSIC_W_SIDE_EFFECTS.
+def : GINodeEquiv<G_INTRINSIC_W_SIDE_EFFECTS, intrinsic_void>;
+def : GINodeEquiv<G_INTRINSIC_W_SIDE_EFFECTS, intrinsic_w_chain>;
+def : GINodeEquiv<G_BR, br>;
+def : GINodeEquiv<G_BSWAP, bswap>;
+
+// Broadly speaking G_LOAD is equivalent to ISD::LOAD but there are some
+// complications that tablegen must take care of. For example, Predicates such
+// as isSignExtLoad require that this is not a perfect 1:1 mapping since a
+// sign-extending load is (G_SEXTLOAD x) in GlobalISel. Additionally,
+// G_LOAD handles both atomic and non-atomic loads where as SelectionDAG had
+// separate nodes for them. This GINodeEquiv maps the non-atomic loads to
+// G_LOAD with a non-atomic MachineMemOperand.
+def : GINodeEquiv<G_LOAD, ld> {
+  let CheckMMOIsNonAtomic = 1;
+  let IfSignExtend = G_SEXTLOAD;
+  let IfZeroExtend = G_ZEXTLOAD;
+}
+// Broadly speaking G_STORE is equivalent to ISD::STORE but there are some
+// complications that tablegen must take care of. For example, predicates such
+// as isTruncStore require that this is not a perfect 1:1 mapping since a
+// truncating store is (G_STORE (G_TRUNCATE x)) in GlobalISel. Additionally,
+// G_STORE handles both atomic and non-atomic stores where as SelectionDAG had
+// separate nodes for them. This GINodeEquiv maps the non-atomic stores to
+// G_STORE with a non-atomic MachineMemOperand.
+def : GINodeEquiv<G_STORE, st> { let CheckMMOIsNonAtomic = 1; }
+
+def : GINodeEquiv<G_ATOMIC_CMPXCHG, atomic_cmp_swap>;
+def : GINodeEquiv<G_ATOMICRMW_XCHG, atomic_swap>;
+def : GINodeEquiv<G_ATOMICRMW_ADD, atomic_load_add>;
+def : GINodeEquiv<G_ATOMICRMW_SUB, atomic_load_sub>;
+def : GINodeEquiv<G_ATOMICRMW_AND, atomic_load_and>;
+def : GINodeEquiv<G_ATOMICRMW_NAND, atomic_load_nand>;
+def : GINodeEquiv<G_ATOMICRMW_OR, atomic_load_or>;
+def : GINodeEquiv<G_ATOMICRMW_XOR, atomic_load_xor>;
+def : GINodeEquiv<G_ATOMICRMW_MIN, atomic_load_min>;
+def : GINodeEquiv<G_ATOMICRMW_MAX, atomic_load_max>;
+def : GINodeEquiv<G_ATOMICRMW_UMIN, atomic_load_umin>;
+def : GINodeEquiv<G_ATOMICRMW_UMAX, atomic_load_umax>;
+
+// Specifies the GlobalISel equivalents for SelectionDAG's ComplexPattern.
+// Should be used on defs that subclass GIComplexOperandMatcher<>.
+class GIComplexPatternEquiv<ComplexPattern seldag> {
+  ComplexPattern SelDAGEquivalent = seldag;
+}
+
+// Specifies the GlobalISel equivalents for SelectionDAG's SDNodeXForm.
+// Should be used on defs that subclass GICustomOperandRenderer<>.
+class GISDNodeXFormEquiv<SDNodeXForm seldag> {
+  SDNodeXForm SelDAGEquivalent = seldag;
+}
