intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 123 insertions, 0 deletions

diff --git a/contrib/libs/llvm12/lib/Target/BPF/BPFInstrFormats.td b/contrib/libs/llvm12/lib/Target/BPF/BPFInstrFormats.td
new file mode 100644
index 0000000000..a809065014
--- /dev/null
+++ b/contrib/libs/llvm12/lib/Target/BPF/BPFInstrFormats.td
@@ -0,0 +1,123 @@
+//===-- BPFInstrFormats.td - BPF Instruction Formats -------*- tablegen -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+class BPFOpClass<bits<3> val> {
+  bits<3> Value = val;
+}
+
+def BPF_LD    : BPFOpClass<0x0>;
+def BPF_LDX   : BPFOpClass<0x1>;
+def BPF_ST    : BPFOpClass<0x2>;
+def BPF_STX   : BPFOpClass<0x3>;
+def BPF_ALU   : BPFOpClass<0x4>;
+def BPF_JMP   : BPFOpClass<0x5>;
+def BPF_JMP32 : BPFOpClass<0x6>;
+def BPF_ALU64 : BPFOpClass<0x7>;
+
+class BPFSrcType<bits<1> val> {
+  bits<1> Value = val;
+}
+
+def BPF_K : BPFSrcType<0x0>;
+def BPF_X : BPFSrcType<0x1>;
+
+class BPFArithOp<bits<4> val> {
+  bits<4> Value = val;
+}
+
+def BPF_ADD  : BPFArithOp<0x0>;
+def BPF_SUB  : BPFArithOp<0x1>;
+def BPF_MUL  : BPFArithOp<0x2>;
+def BPF_DIV  : BPFArithOp<0x3>;
+def BPF_OR   : BPFArithOp<0x4>;
+def BPF_AND  : BPFArithOp<0x5>;
+def BPF_LSH  : BPFArithOp<0x6>;
+def BPF_RSH  : BPFArithOp<0x7>;
+def BPF_NEG  : BPFArithOp<0x8>;
+def BPF_XOR  : BPFArithOp<0xa>;
+def BPF_MOV  : BPFArithOp<0xb>;
+def BPF_ARSH : BPFArithOp<0xc>;
+def BPF_END  : BPFArithOp<0xd>;
+
+def BPF_XCHG    : BPFArithOp<0xe>;
+def BPF_CMPXCHG : BPFArithOp<0xf>;
+
+class BPFEndDir<bits<1> val> {
+  bits<1> Value = val;
+}
+
+def BPF_TO_LE : BPFSrcType<0x0>;
+def BPF_TO_BE : BPFSrcType<0x1>;
+
+class BPFJumpOp<bits<4> val> {
+  bits<4> Value = val;
+}
+
+def BPF_JA   : BPFJumpOp<0x0>;
+def BPF_JEQ  : BPFJumpOp<0x1>;
+def BPF_JGT  : BPFJumpOp<0x2>;
+def BPF_JGE  : BPFJumpOp<0x3>;
+def BPF_JNE  : BPFJumpOp<0x5>;
+def BPF_JSGT : BPFJumpOp<0x6>;
+def BPF_JSGE : BPFJumpOp<0x7>;
+def BPF_CALL : BPFJumpOp<0x8>;
+def BPF_EXIT : BPFJumpOp<0x9>;
+def BPF_JLT  : BPFJumpOp<0xa>;
+def BPF_JLE  : BPFJumpOp<0xb>;
+def BPF_JSLT : BPFJumpOp<0xc>;
+def BPF_JSLE : BPFJumpOp<0xd>;
+
+class BPFWidthModifer<bits<2> val> {
+  bits<2> Value = val;
+}
+
+def BPF_W  : BPFWidthModifer<0x0>;
+def BPF_H  : BPFWidthModifer<0x1>;
+def BPF_B  : BPFWidthModifer<0x2>;
+def BPF_DW : BPFWidthModifer<0x3>;
+
+class BPFModeModifer<bits<3> val> {
+  bits<3> Value = val;
+}
+
+def BPF_IMM  : BPFModeModifer<0x0>;
+def BPF_ABS  : BPFModeModifer<0x1>;
+def BPF_IND  : BPFModeModifer<0x2>;
+def BPF_MEM  : BPFModeModifer<0x3>;
+def BPF_ATOMIC : BPFModeModifer<0x6>;
+
+class BPFAtomicFlag<bits<4> val> {
+  bits<4> Value = val;
+}
+
+def BPF_FETCH : BPFAtomicFlag<0x1>;
+
+class InstBPF<dag outs, dag ins, string asmstr, list<dag> pattern>
+  : Instruction {
+  field bits<64> Inst;
+  field bits<64> SoftFail = 0;
+  let Size = 8;
+
+  let Namespace = "BPF";
+  let DecoderNamespace = "BPF";
+
+  BPFOpClass BPFClass;
+  let Inst{58-56} = BPFClass.Value;
+
+  dag OutOperandList = outs;
+  dag InOperandList = ins;
+  let AsmString = asmstr;
+  let Pattern = pattern;
+}
+
+// Pseudo instructions
+class Pseudo<dag outs, dag ins, string asmstr, list<dag> pattern>
+  : InstBPF<outs, ins, asmstr, pattern> {
+  let Inst{63-0} = 0;
+  let isPseudo = 1;
+}