From ed686df9537160a52ca0c834241d36a905b5d4c5 Mon Sep 17 00:00:00 2001
From: Davide Italiano <davide@freebsd.org>
Date: Mon, 4 Jul 2016 19:21:42 +0000
Subject: [PATCH] [TableGen] Remove dead code. NFCI.

llvm-svn: 274515
---
 utils/TableGen/FixedLenDecoderEmitter.cpp | 28 -----------------------
 1 file changed, 28 deletions(-)

diff --git a/utils/TableGen/FixedLenDecoderEmitter.cpp b/utils/TableGen/FixedLenDecoderEmitter.cpp
index ca6fe501f73..0506400b90f 100644
--- a/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -410,9 +410,6 @@ protected:
     return Filters[BestIndex];
   }
 
-  // Called from Filter::recurse() when singleton exists.  For debug purpose.
-  void SingletonExists(unsigned Opc) const;
-
   bool PositionFiltered(unsigned i) const {
     return ValueSet(FilterBitValues[i]);
   }
@@ -559,7 +556,6 @@ void Filter::recurse() {
   // No need to recurse for a singleton filtered instruction.
   // See also Filter::emit*().
   if (getNumFiltered() == 1) {
-    //Owner->SingletonExists(LastOpcFiltered);
     assert(FilterChooserMap.size() == 1);
     return;
   }
@@ -977,30 +973,6 @@ void FilterChooser::dumpStack(raw_ostream &o, const char *prefix) const {
   }
 }
 
-// Called from Filter::recurse() when singleton exists.  For debug purpose.
-void FilterChooser::SingletonExists(unsigned Opc) const {
-  insn_t Insn0;
-  insnWithID(Insn0, Opc);
-
-  errs() << "Singleton exists: " << nameWithID(Opc)
-         << " with its decoding dominating ";
-  for (unsigned i = 0; i < Opcodes.size(); ++i) {
-    if (Opcodes[i] == Opc) continue;
-    errs() << nameWithID(Opcodes[i]) << ' ';
-  }
-  errs() << '\n';
-
-  dumpStack(errs(), "\t\t");
-  for (unsigned i = 0; i < Opcodes.size(); ++i) {
-    const std::string &Name = nameWithID(Opcodes[i]);
-
-    errs() << '\t' << Name << " ";
-    dumpBits(errs(),
-             getBitsField(*AllInstructions[Opcodes[i]]->TheDef, "Inst"));
-    errs() << '\n';
-  }
-}
-
 // Calculates the island(s) needed to decode the instruction.
 // This returns a list of undecoded bits of an instructions, for example,
 // Inst{20} = 1 && Inst{3-0} == 0b1111 represents two islands of yet-to-be