capstone

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From b42f9f2014ec49a22077b6610863d9341a74e142 Mon Sep 17 00:00:00 2001
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From: mephi42 <mephi42@gmail.com>
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Date: Fri, 17 Aug 2018 11:07:39 +0200
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Subject: [PATCH 7/7] capstone: generate *GenInsnNameMaps.inc
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---
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 lib/Target/SystemZ/CMakeLists.txt   |  1 +
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 utils/TableGen/InstrInfoEmitter.cpp | 29 +++++++++++++++++++++++++++++
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 utils/TableGen/TableGen.cpp         |  6 ++++++
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 utils/TableGen/TableGenBackends.h   |  1 +
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 4 files changed, 37 insertions(+)
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diff --git a/lib/Target/SystemZ/CMakeLists.txt b/lib/Target/SystemZ/CMakeLists.txt
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index 4b5d9c4a3b2..2c64e0a94b8 100644
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--- a/lib/Target/SystemZ/CMakeLists.txt
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+++ b/lib/Target/SystemZ/CMakeLists.txt
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@@ -7,6 +7,7 @@ tablegen(LLVM SystemZGenDAGISel.inc -gen-dag-isel)
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 tablegen(LLVM SystemZGenDisassemblerTables.inc -gen-disassembler)
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 tablegen(LLVM SystemZGenInstrInfo.inc -gen-instr-info)
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 tablegen(LLVM SystemZMappingInsn.inc -mapping-insn)
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+tablegen(LLVM SystemZGenInsnNameMaps.inc -gen-insn-name-maps)
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 tablegen(LLVM SystemZGenMCCodeEmitter.inc -gen-emitter)
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 tablegen(LLVM SystemZGenRegisterInfo.inc -gen-register-info)
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 tablegen(LLVM SystemZGenSubtargetInfo.inc -gen-subtarget)
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diff --git a/utils/TableGen/InstrInfoEmitter.cpp b/utils/TableGen/InstrInfoEmitter.cpp
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index 14ab1ea8a72..ccf8170ca62 100644
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--- a/utils/TableGen/InstrInfoEmitter.cpp
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+++ b/utils/TableGen/InstrInfoEmitter.cpp
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@@ -837,6 +837,35 @@ void EmitMappingInsn(RecordKeeper &RK, raw_ostream &OS) {
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        << "},\n";
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   }
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 }
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+
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+std::string GetMnemonic(const CodeGenInstruction *Inst) {
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+    std::string Mnemonic = Inst->AsmString;
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+
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+    for (size_t i = 0; i < Mnemonic.length(); i++) {
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+      if (Mnemonic[i] == '\t') {
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+        return Mnemonic.substr(0, i);
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+      }
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+    }
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+    return Mnemonic;
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+}
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+
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+void EmitInsnNameMaps(RecordKeeper &RK, raw_ostream &OS) {
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+  OS << "// This is auto-gen data for Capstone engine (www.capstone-engine.org)\n"
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+        "// By Nguyen Anh Quynh <aquynh@gmail.com>\n"
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+        "\n";
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+  CodeGenTarget Target(RK);
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+  std::map<std::string, std::string> M;
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+  for (const CodeGenInstruction *Inst : Target.getInstructionsByEnumValue()) {
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+    if (Inst->TheDef->getValueAsBit("isPseudo") ||
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+        Inst->TheDef->getValueAsBit("isCodeGenOnly")) {
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+      continue;
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+    }
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+    M[GetPublicName(Inst)] = GetMnemonic(Inst);
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+  }
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+  for (auto &P : M) {
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+    OS << "\t{ " << P.first << ", \"" << P.second << "\" },\n";
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+  }
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+}
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 #endif
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 } // end llvm namespace
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diff --git a/utils/TableGen/TableGen.cpp b/utils/TableGen/TableGen.cpp
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index bbb4e860536..27c6603de5a 100644
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--- a/utils/TableGen/TableGen.cpp
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+++ b/utils/TableGen/TableGen.cpp
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@@ -28,6 +28,7 @@ enum ActionType {
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   GenRegisterInfo,
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   GenInstrInfo,
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   MappingInsn,
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+  GenInsnNameMaps,
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   GenInstrDocs,
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   GenAsmWriter,
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   GenAsmMatcher,
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@@ -68,6 +69,8 @@ namespace {
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                                "Generate instruction descriptions"),
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                     clEnumValN(MappingInsn, "mapping-insn",
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                                ""),
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+                    clEnumValN(GenInsnNameMaps, "gen-insn-name-maps",
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+                               ""),
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                     clEnumValN(GenInstrDocs, "gen-instr-docs",
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                                "Generate instruction documentation"),
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                     clEnumValN(GenCallingConv, "gen-callingconv",
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@@ -141,6 +144,9 @@ bool LLVMTableGenMain(raw_ostream &OS, RecordKeeper &Records) {
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   case MappingInsn:
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     EmitMappingInsn(Records, OS);
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     break;
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+  case GenInsnNameMaps:
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+    EmitInsnNameMaps(Records, OS);
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+    break;
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   case GenInstrDocs:
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     EmitInstrDocs(Records, OS);
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     break;
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diff --git a/utils/TableGen/TableGenBackends.h b/utils/TableGen/TableGenBackends.h
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index a41e46b1db0..5656e5be849 100644
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--- a/utils/TableGen/TableGenBackends.h
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+++ b/utils/TableGen/TableGenBackends.h
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@@ -76,6 +76,7 @@ void EmitDisassembler(RecordKeeper &RK, raw_ostream &OS);
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 void EmitFastISel(RecordKeeper &RK, raw_ostream &OS);
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 void EmitInstrInfo(RecordKeeper &RK, raw_ostream &OS);
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 void EmitMappingInsn(RecordKeeper &RK, raw_ostream &OS);
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+void EmitInsnNameMaps(RecordKeeper &RK, raw_ostream &OS);
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 void EmitInstrDocs(RecordKeeper &RK, raw_ostream &OS);
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 void EmitPseudoLowering(RecordKeeper &RK, raw_ostream &OS);
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 void EmitCompressInst(RecordKeeper &RK, raw_ostream &OS);
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-- 
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2.19.1
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