[LLVM][NFC] remove unused fields

Summary:
Here is the commit introducing the fields
https://github.com/llvm/llvm-project/commit/cf6749e4c091

It dates back from 2006 and was used by AArch64 backend.
There is no more reference to these fields in the whole codebase so I think it's fine.

Reviewers: courbet

Subscribers: javed.absar, kristof.beyls, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D66683

llvm-svn: 369810

llvm/include/llvm/CodeGen/BasicTTIImpl.h

@@ -381,10 +381,6 @@ public:
     return N;
   }
 
-  unsigned getJumpBufAlignment() { return getTLI()->getJumpBufAlignment(); }
-
-  unsigned getJumpBufSize() { return getTLI()->getJumpBufSize(); }
-
   bool shouldBuildLookupTables() {
     const TargetLoweringBase *TLI = getTLI();
     return TLI->isOperationLegalOrCustom(ISD::BR_JT, MVT::Other) ||

llvm/include/llvm/CodeGen/TargetLowering.h

@@ -1574,18 +1574,6 @@ public:
     report_fatal_error("Funclet EH is not implemented for this target");
   }
 
-  /// Returns the target's jmp_buf size in bytes (if never set, the default is
-  /// 200)
-  unsigned getJumpBufSize() const {
-    return JumpBufSize;
-  }
-
-  /// Returns the target's jmp_buf alignment in bytes (if never set, the default
-  /// is 0)
-  unsigned getJumpBufAlignment() const {
-    return JumpBufAlignment;
-  }
-
   /// Return the minimum stack alignment of an argument.
   unsigned getMinStackArgumentAlignment() const {
     return MinStackArgumentAlignment;
@@ -2109,17 +2097,6 @@ protected:
     TargetDAGCombineArray[NT >> 3] |= 1 << (NT&7);
   }
 
-  /// Set the target's required jmp_buf buffer size (in bytes); default is 200
-  void setJumpBufSize(unsigned Size) {
-    JumpBufSize = Size;
-  }
-
-  /// Set the target's required jmp_buf buffer alignment (in bytes); default is
-  /// 0
-  void setJumpBufAlignment(unsigned Align) {
-    JumpBufAlignment = Align;
-  }
-
   /// Set the target's minimum function alignment (in log2(bytes))
   void setMinFunctionAlignment(unsigned Align) {
     MinFunctionAlignment = Align;
@@ -2703,12 +2680,6 @@ private:
   /// register usage.
   Sched::Preference SchedPreferenceInfo;
 
-  /// The size, in bytes, of the target's jmp_buf buffers
-  unsigned JumpBufSize;
-
-  /// The alignment, in bytes, of the target's jmp_buf buffers
-  unsigned JumpBufAlignment;
-
   /// The minimum alignment that any argument on the stack needs to have.
   unsigned MinStackArgumentAlignment;
 

llvm/lib/CodeGen/TargetLoweringBase.cpp

@@ -578,8 +578,6 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm) : TM(tm) {
   BooleanFloatContents = UndefinedBooleanContent;
   BooleanVectorContents = UndefinedBooleanContent;
   SchedPreferenceInfo = Sched::ILP;
-  JumpBufSize = 0;
-  JumpBufAlignment = 0;
   MinFunctionAlignment = 0;
   PrefFunctionAlignment = 0;
   PrefLoopAlignment = 0;