From 7212f809662ea3d54974e5ab64f612fb138e3ec9 Mon Sep 17 00:00:00 2001
From: Daniel Dunbar <daniel@zuster.org>
Date: Thu, 30 Jul 2009 18:29:44 +0000
Subject: [PATCH] Remove unintended changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77616 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/AsmMatcherEmitter.cpp | 51 ----------------------------
 1 file changed, 51 deletions(-)

diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 45a1c8622aa..d00ff202ad0 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -17,32 +17,6 @@
 #include "Record.h"
 using namespace llvm;
 
-static std::string FlattenVariants(const std::string &AsmString,
-                                   unsigned Index) {
-  StringRef Cur = AsmString;
-  std::string Res = "";
-  
-  for (;;) {
-    std::pair<StringRef, StringRef> Split = Cur.split('{');
-
-    Res += Split.first;
-    if (Split.second.empty())
-      break;
-
-    std::pair<StringRef, StringRef> Inner = Cur.split('}');
-    StringRef Selection = Inner.first;
-    for (unsigned i = 0; i != Index; ++i)
-      Selection = Selection.split('|').second;
-    Selection = Selection.split('|').first;
-
-    Res += Selection;
-
-    Cur = Inner.second;
-  } 
-
-  return Res;
-}
-
 void AsmMatcherEmitter::run(raw_ostream &OS) {
   CodeGenTarget Target;
   const std::vector<CodeGenRegister> &Registers = Target.getRegisters();
@@ -70,29 +44,4 @@ void AsmMatcherEmitter::run(raw_ostream &OS) {
   }
   OS << "  return true;\n";
   OS << "}\n";
-
-  // Emit the function to match instructions.  
-  std::vector<const CodeGenInstruction*> NumberedInstructions;
-  Target.getInstructionsByEnumValue(NumberedInstructions);
-
-  const std::map<std::string, CodeGenInstruction> &Instructions =
-    Target.getInstructions();
-  for (std::map<std::string, CodeGenInstruction>::const_iterator 
-         it = Instructions.begin(), ie = Instructions.end(); it != ie; ++it) {
-    const CodeGenInstruction &CGI = it->second;
-
-    if (it->first != "SUB8rr")
-      continue;
-
-    /*
-def SUB8rr  : I<0x28, MRMDestReg, (outs GR8:$dst), (ins GR8:$src1, GR8:$src2),
-                "sub{b}\t{$src2, $dst|$dst, $src2}",
-                [(set GR8:$dst, (sub GR8:$src1, GR8:$src2)),
-                 (implicit EFLAGS)]>;
-    */
-
-    outs() << it->first << " "
-           << FlattenVariants(CGI.AsmString, 0)
-           << "\n";
-  }
 }