From e2189144d45be78a89f0daf3df3cf12e38221d86 Mon Sep 17 00:00:00 2001
From: Jim Grosbach <grosbach@apple.com>
Date: Mon, 14 Mar 2011 18:34:35 +0000
Subject: [PATCH] Remove some dead patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127601 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrFormats.td             | 10 ------
 lib/Target/ARM/ARMInstrThumb2.td              | 34 -------------------
 lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp | 10 ------
 lib/Target/ARM/InstPrinter/ARMInstPrinter.h   |  2 --
 4 files changed, 56 deletions(-)

diff --git a/lib/Target/ARM/ARMInstrFormats.td b/lib/Target/ARM/ARMInstrFormats.td
index 81577dafe66..e890232bef3 100644
--- a/lib/Target/ARM/ARMInstrFormats.td
+++ b/lib/Target/ARM/ARMInstrFormats.td
@@ -206,21 +206,11 @@ def setend_op : Operand<i32> {
   let PrintMethod = "printSetendOperand";
 }
 
-def cps_opt : Operand<i32> {
-  let PrintMethod = "printCPSOptionOperand";
-}
-
 def msr_mask : Operand<i32> {
   let PrintMethod = "printMSRMaskOperand";
   let ParserMatchClass = MSRMaskOperand;
 }
 
-// A8.6.117, A8.6.118.  Different instructions are generated for #0 and #-0.
-// The neg_zero operand translates -0 to -1, -1 to -2, ..., etc.
-def neg_zero : Operand<i32> {
-  let PrintMethod = "printNegZeroOperand";
-}
-
 // Shift Right Immediate - A shift right immediate is encoded differently from
 // other shift immediates. The imm6 field is encoded like so:
 //
diff --git a/lib/Target/ARM/ARMInstrThumb2.td b/lib/Target/ARM/ARMInstrThumb2.td
index 0e01be59c7e..a93c3645059 100644
--- a/lib/Target/ARM/ARMInstrThumb2.td
+++ b/lib/Target/ARM/ARMInstrThumb2.td
@@ -61,40 +61,6 @@ def t2_so_imm_neg : Operand<i32>,
   return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
 }], t2_so_imm_neg_XFORM>;
 
-// Break t2_so_imm's up into two pieces.  This handles immediates with up to 16
-// bits set in them.  This uses t2_so_imm2part to match and t2_so_imm2part_[12]
-// to get the first/second pieces.
-def t2_so_imm2part : Operand<i32>,
-                  PatLeaf<(imm), [{
-      return ARM_AM::isT2SOImmTwoPartVal((unsigned)N->getZExtValue());
-    }]> {
-}
-
-def t2_so_imm2part_1 : SDNodeXForm<imm, [{
-  unsigned V = ARM_AM::getT2SOImmTwoPartFirst((unsigned)N->getZExtValue());
-  return CurDAG->getTargetConstant(V, MVT::i32);
-}]>;
-
-def t2_so_imm2part_2 : SDNodeXForm<imm, [{
-  unsigned V = ARM_AM::getT2SOImmTwoPartSecond((unsigned)N->getZExtValue());
-  return CurDAG->getTargetConstant(V, MVT::i32);
-}]>;
-
-def t2_so_neg_imm2part : Operand<i32>, PatLeaf<(imm), [{
-      return ARM_AM::isT2SOImmTwoPartVal(-(int)N->getZExtValue());
-    }]> {
-}
-
-def t2_so_neg_imm2part_1 : SDNodeXForm<imm, [{
-  unsigned V = ARM_AM::getT2SOImmTwoPartFirst(-(int)N->getZExtValue());
-  return CurDAG->getTargetConstant(V, MVT::i32);
-}]>;
-
-def t2_so_neg_imm2part_2 : SDNodeXForm<imm, [{
-  unsigned V = ARM_AM::getT2SOImmTwoPartSecond(-(int)N->getZExtValue());
-  return CurDAG->getTargetConstant(V, MVT::i32);
-}]>;
-
 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
 def imm1_31 : PatLeaf<(i32 imm), [{
   return (int32_t)N->getZExtValue() >= 1 && (int32_t)N->getZExtValue() < 32;
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
index 303ee2b69d3..82bd678a26b 100644
--- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
@@ -417,16 +417,6 @@ void ARMInstPrinter::printMSRMaskOperand(const MCInst *MI, unsigned OpNum,
   }
 }
 
-void ARMInstPrinter::printNegZeroOperand(const MCInst *MI, unsigned OpNum,
-                                         raw_ostream &O) {
-  const MCOperand &Op = MI->getOperand(OpNum);
-  O << '#';
-  if (Op.getImm() < 0)
-    O << '-' << (-Op.getImm() - 1);
-  else
-    O << Op.getImm();
-}
-
 void ARMInstPrinter::printPredicateOperand(const MCInst *MI, unsigned OpNum,
                                            raw_ostream &O) {
   ARMCC::CondCodes CC = (ARMCC::CondCodes)MI->getOperand(OpNum).getImm();
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.h b/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
index 7e85f3ab22b..a44f208d154 100644
--- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
+++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.h
@@ -88,9 +88,7 @@ public:
   void printSetendOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
   void printCPSIMod(const MCInst *MI, unsigned OpNum, raw_ostream &O);
   void printCPSIFlag(const MCInst *MI, unsigned OpNum, raw_ostream &O);
-  void printCPSOptionOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
   void printMSRMaskOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
-  void printNegZeroOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
   void printPredicateOperand(const MCInst *MI, unsigned OpNum, raw_ostream &O);
   void printMandatoryPredicateOperand(const MCInst *MI, unsigned OpNum,
                                       raw_ostream &O);