remove more remnants of small section support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76936 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 3487b74a2c9b4343381a68a75f75580276097f2f..f6d171b367abb9074b6780bac124a7ce4c6c829d 100644 (file)
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -216,37 +216,6 @@ AddLiveIn(MachineFunction &MF, unsigned PReg, TargetRegisterClass *RC)
   return VReg;
 }
 
-// A address must be loaded from a small section if its size is less than the 
-// small section size threshold. Data in this section must be addressed using 
-// gp_rel operator.
-bool MipsTargetLowering::IsInSmallSection(unsigned Size) {
-  return (Size > 0 && (Size <= Subtarget->getSSectionThreshold()));
-}
-
-// Discover if this global address can be placed into small data/bss section. 
-bool MipsTargetLowering::IsGlobalInSmallSection(GlobalValue *GV)
-{
-  const TargetData *TD = getTargetData();
-  const GlobalVariable *GVA = dyn_cast<GlobalVariable>(GV);
-
-  if (!GVA)
-    return false;
-  
-  const Type *Ty = GV->getType()->getElementType();
-  unsigned Size = TD->getTypeAllocSize(Ty);
-
-  // if this is a internal constant string, there is a special
-  // section for it, but not in small data/bss.
-  if (GVA->hasInitializer() && GV->hasLocalLinkage()) {
-    Constant *C = GVA->getInitializer();
-    const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
-    if (CVA && CVA->isCString()) 
-      return false;
-  }
-
-  return IsInSmallSection(Size);
-}
-
 // Get fp branch code (not opcode) from condition code.
 static Mips::FPBranchCode GetFPBranchCodeFromCond(Mips::CondCode CC) {
   if (CC >= Mips::FCOND_F && CC <= Mips::FCOND_NGT)
@@ -532,15 +501,8 @@ LowerGlobalAddress(SDValue Op, SelectionDAG &DAG)
 
   if (!Subtarget->hasABICall()) {
     SDVTList VTs = DAG.getVTList(MVT::i32);
-    SDValue Ops[] = { GA };
-    // %gp_rel relocation
-    if (!isa<Function>(GV) && IsGlobalInSmallSection(GV)) { 
-      SDValue GPRelNode = DAG.getNode(MipsISD::GPRel, dl, VTs, Ops, 1);
-      SDValue GOT = DAG.getGLOBAL_OFFSET_TABLE(MVT::i32);
-      return DAG.getNode(ISD::ADD, dl, MVT::i32, GOT, GPRelNode); 
-    }
     // %hi/%lo relocation
-    SDValue HiPart = DAG.getNode(MipsISD::Hi, dl, VTs, Ops, 1);
+    SDValue HiPart = DAG.getNode(MipsISD::Hi, dl, VTs, &GA, 1);
     SDValue Lo = DAG.getNode(MipsISD::Lo, dl, MVT::i32, GA);
     return DAG.getNode(ISD::ADD, dl, MVT::i32, HiPart, Lo);
 

diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h
index 9ad4895ce6e588a1032e6be53a30a128f06af80f..234eddd2629b407d93b864d93b2b251fe5b0125f 100644 (file)
--- a/lib/Target/Mips/MipsISelLowering.h
+++ b/lib/Target/Mips/MipsISelLowering.h
@@ -91,8 +91,6 @@ namespace llvm {
     // Lower Operand helpers
     SDNode *LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
                             unsigned CallingConv, SelectionDAG &DAG);
-    bool IsGlobalInSmallSection(GlobalValue *GV); 
-    bool IsInSmallSection(unsigned Size); 
 
     // Lower Operand specifics
     SDValue LowerANDOR(SDValue Op, SelectionDAG &DAG);

diff --git a/lib/Target/Mips/MipsSubtarget.cpp b/lib/Target/Mips/MipsSubtarget.cpp
index 4245f274f8f046fdbcc30a06b465c257a753dd96..87c2208e9d42a0cb2fb46270c354610ae69a05be 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.cpp
+++ b/lib/Target/Mips/MipsSubtarget.cpp
@@ -24,10 +24,6 @@ NotABICall("disable-mips-abicall", cl::Hidden,
 static cl::opt<bool>
 AbsoluteCall("enable-mips-absolute-call", cl::Hidden,
              cl::desc("Enable absolute call within abicall"));
-static cl::opt<unsigned>
-SSThreshold("mips-ssection-threshold", cl::Hidden,
-            cl::desc("Small data and bss section threshold size (default=8)"),
-            cl::init(8));
 
 MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M, 
                              const std::string &FS, bool little) : 
@@ -43,9 +39,6 @@ MipsSubtarget::MipsSubtarget(const TargetMachine &TM, const Module &M,
   ParseSubtargetFeatures(FS, CPU);
   const std::string& TT = M.getTargetTriple();
 
-  // Small section size threshold
-  SSectionThreshold = SSThreshold;
-
   // Is the target system Linux ?
   if (TT.find("linux") == std::string::npos)
     IsLinux = false;

diff --git a/lib/Target/Mips/MipsSubtarget.h b/lib/Target/Mips/MipsSubtarget.h
index 61c37c1d377e6237ce857eb4a680459519c53a0f..2244e497dd756f8393488860843ad88451c65067 100644 (file)
--- a/lib/Target/Mips/MipsSubtarget.h
+++ b/lib/Target/Mips/MipsSubtarget.h
@@ -68,10 +68,6 @@ protected:
   // isLinux - Target system is Linux. Is false we consider ELFOS for now.
   bool IsLinux;
 
-  // Put global and static items less than or equal to SSectionThreshold 
-  // bytes into the small data or bss section. The default is 8.
-  unsigned SSectionThreshold;
-
   /// Features related to the presence of specific instructions.
   
   // HasSEInReg - SEB and SEH (signext in register) instructions.
@@ -124,7 +120,6 @@ public:
   bool hasABICall() const { return HasABICall; };
   bool hasAbsoluteCall() const { return HasAbsoluteCall; };
   bool isLinux() const { return IsLinux; };
-  unsigned getSSectionThreshold() const { return SSectionThreshold; }
 
   /// Features related to the presence of specific instructions.
   bool hasSEInReg()   const { return HasSEInReg; };