From b42f9f2014ec49a22077b6610863d9341a74e142 Mon Sep 17 00:00:00 2001
From: mephi42 <mephi42@gmail.com>
Date: Fri, 17 Aug 2018 11:07:39 +0200
Subject: [PATCH 7/7] capstone: generate *GenInsnNameMaps.inc

---
 lib/Target/SystemZ/CMakeLists.txt   |  1 +
 utils/TableGen/InstrInfoEmitter.cpp | 29 +++++++++++++++++++++++++++++
 utils/TableGen/TableGen.cpp         |  6 ++++++
 utils/TableGen/TableGenBackends.h   |  1 +
 4 files changed, 37 insertions(+)

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