From d799d28540921986e2d336073c535d192c7bcebc Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Wed, 5 Oct 2016 19:25:20 +0000
Subject: [PATCH] FastISel: Remove unused/un-overridden entry points. NFCI.

llvm-svn: 283366
---
 llvm/include/llvm/CodeGen/FastISel.h       | 13 ------------
 llvm/lib/CodeGen/SelectionDAG/FastISel.cpp | 23 ----------------------
 llvm/utils/TableGen/FastISelEmitter.cpp    |  3 +--
 3 files changed, 1 insertion(+), 38 deletions(-)

diff --git a/llvm/include/llvm/CodeGen/FastISel.h b/llvm/include/llvm/CodeGen/FastISel.h
index 3b97d1e1f292..cdaea250c33b 100644
--- a/llvm/include/llvm/CodeGen/FastISel.h
+++ b/llvm/include/llvm/CodeGen/FastISel.h
@@ -356,19 +356,6 @@ protected:
   virtual unsigned fastEmit_ri(MVT VT, MVT RetVT, unsigned Opcode, unsigned Op0,
                                bool Op0IsKill, uint64_t Imm);
 
-  /// \brief This method is called by target-independent code to request that an
-  /// instruction with the given type, opcode, and register and floating-point
-  /// immediate operands be emitted.
-  virtual unsigned fastEmit_rf(MVT VT, MVT RetVT, unsigned Opcode, unsigned Op0,
-                               bool Op0IsKill, const ConstantFP *FPImm);
-
-  /// \brief This method is called by target-independent code to request that an
-  /// instruction with the given type, opcode, and register and immediate
-  /// operands be emitted.
-  virtual unsigned fastEmit_rri(MVT VT, MVT RetVT, unsigned Opcode,
-                                unsigned Op0, bool Op0IsKill, unsigned Op1,
-                                bool Op1IsKill, uint64_t Imm);
-
   /// \brief This method is a wrapper of fastEmit_ri.
   ///
   /// It first tries to emit an instruction with an immediate operand using
diff --git a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
index 95b4ff7a46e6..a246f12e96aa 100644
--- a/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
@@ -455,17 +455,6 @@ bool FastISel::selectBinaryOp(const User *I, unsigned ISDOpcode) {
     return true;
   }
 
-  // Check if the second operand is a constant float.
-  if (const auto *CF = dyn_cast<ConstantFP>(I->getOperand(1))) {
-    unsigned ResultReg = fastEmit_rf(VT.getSimpleVT(), VT.getSimpleVT(),
-                                     ISDOpcode, Op0, Op0IsKill, CF);
-    if (ResultReg) {
-      // We successfully emitted code for the given LLVM Instruction.
-      updateValueMap(I, ResultReg);
-      return true;
-    }
-  }
-
   unsigned Op1 = getRegForValue(I->getOperand(1));
   if (!Op1) // Unhandled operand. Halt "fast" selection and bail.
     return false;
@@ -1725,18 +1714,6 @@ unsigned FastISel::fastEmit_ri(MVT, MVT, unsigned, unsigned /*Op0*/,
   return 0;
 }
 
-unsigned FastISel::fastEmit_rf(MVT, MVT, unsigned, unsigned /*Op0*/,
-                               bool /*Op0IsKill*/,
-                               const ConstantFP * /*FPImm*/) {
-  return 0;
-}
-
-unsigned FastISel::fastEmit_rri(MVT, MVT, unsigned, unsigned /*Op0*/,
-                                bool /*Op0IsKill*/, unsigned /*Op1*/,
-                                bool /*Op1IsKill*/, uint64_t /*Imm*/) {
-  return 0;
-}
-
 /// This method is a wrapper of fastEmit_ri. It first tries to emit an
 /// instruction with an immediate operand using fastEmit_ri.
 /// If that fails, it materializes the immediate into a register and try
diff --git a/llvm/utils/TableGen/FastISelEmitter.cpp b/llvm/utils/TableGen/FastISelEmitter.cpp
index debb12c4f511..30a57b502bf2 100644
--- a/llvm/utils/TableGen/FastISelEmitter.cpp
+++ b/llvm/utils/TableGen/FastISelEmitter.cpp
@@ -564,8 +564,7 @@ void FastISelMap::collectPatterns(CodeGenDAGPatterns &CGP) {
     Operands.PrintManglingSuffix(SuffixOS, ImmediatePredicates, true);
     SuffixOS.flush();
     if (!StringSwitch<bool>(ManglingSuffix)
-        .Cases("", "r", "rr", "ri", "rf", true)
-        .Cases("rri", "i", "f", true)
+        .Cases("", "r", "rr", "ri", "i", "f", true)
         .Default(false))
       continue;