[mips] The decision to use MO_GOT_PAGE and MO_GOT_OFST depends on the ABI being N32...

Summary: No functional change (in supported use cases)

Reviewers: matheusalmeida

Reviewed By: matheusalmeida

Differential Revision: http://llvm-reviews.chandlerc.com/D3177

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204805 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MipsISelLowering.cpp b/lib/Target/Mips/MipsISelLowering.cpp
index 1e4cb4ac4fdc3363ce61e12f1a21a4f99e9c21f4..186b9c3de0105b4cdcccc0083846346ff3ec0be7 100644 (file)
--- a/lib/Target/Mips/MipsISelLowering.cpp
+++ b/lib/Target/Mips/MipsISelLowering.cpp
@@ -1519,7 +1519,7 @@ SDValue MipsTargetLowering::lowerGlobalAddress(SDValue Op,
   }
 
   if (GV->hasInternalLinkage() || (GV->hasLocalLinkage() && !isa<Function>(GV)))
-    return getAddrLocal(N, Ty, DAG, HasMips64);
+    return getAddrLocal(N, Ty, DAG, isN32() || IsN64);
 
   if (LargeGOT)
     return getAddrGlobalLargeGOT(N, Ty, DAG, MipsII::MO_GOT_HI16,
@@ -1539,7 +1539,7 @@ SDValue MipsTargetLowering::lowerBlockAddress(SDValue Op,
   if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !IsN64)
     return getAddrNonPIC(N, Ty, DAG);
 
-  return getAddrLocal(N, Ty, DAG, HasMips64);
+  return getAddrLocal(N, Ty, DAG, isN32() || IsN64);
 }
 
 SDValue MipsTargetLowering::
@@ -1632,7 +1632,7 @@ lowerJumpTable(SDValue Op, SelectionDAG &DAG) const
   if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !IsN64)
     return getAddrNonPIC(N, Ty, DAG);
 
-  return getAddrLocal(N, Ty, DAG, HasMips64);
+  return getAddrLocal(N, Ty, DAG, isN32() || IsN64);
 }
 
 SDValue MipsTargetLowering::
@@ -1653,7 +1653,7 @@ lowerConstantPool(SDValue Op, SelectionDAG &DAG) const
   if (getTargetMachine().getRelocationModel() != Reloc::PIC_ && !IsN64)
     return getAddrNonPIC(N, Ty, DAG);
 
-  return getAddrLocal(N, Ty, DAG, HasMips64);
+  return getAddrLocal(N, Ty, DAG, isN32() || IsN64);
 }
 
 SDValue MipsTargetLowering::lowerVASTART(SDValue Op, SelectionDAG &DAG) const {
@@ -2510,7 +2510,7 @@ MipsTargetLowering::LowerCall(TargetLowering::CallLoweringInfo &CLI,
       InternalLinkage = Val->hasInternalLinkage();
 
       if (InternalLinkage)
-        Callee = getAddrLocal(G, Ty, DAG, HasMips64);
+        Callee = getAddrLocal(G, Ty, DAG, isN32() || IsN64);
       else if (LargeGOT)
         Callee = getAddrGlobalLargeGOT(G, Ty, DAG, MipsII::MO_CALL_HI16,
                                        MipsII::MO_CALL_LO16, Chain,

diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h
index b03cccfb5864a1a7b2a8f4405f2d0c9ce0d8504e..7831fecae1c4ce3d7d0d62e6ab52703333f16a2f 100644 (file)
--- a/lib/Target/Mips/MipsISelLowering.h
+++ b/lib/Target/Mips/MipsISelLowering.h
@@ -258,17 +258,17 @@ namespace llvm {
     // computing a local symbol's address:
     //
     // (add (load (wrapper $gp, %got(sym)), %lo(sym))
-    template<class NodeTy>
+    template <class NodeTy>
     SDValue getAddrLocal(NodeTy *N, EVT Ty, SelectionDAG &DAG,
-                         bool HasMips64) const {
+                         bool IsN32OrN64) const {
       SDLoc DL(N);
-      unsigned GOTFlag = HasMips64 ? MipsII::MO_GOT_PAGE : MipsII::MO_GOT;
+      unsigned GOTFlag = IsN32OrN64 ? MipsII::MO_GOT_PAGE : MipsII::MO_GOT;
       SDValue GOT = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty),
                                 getTargetNode(N, Ty, DAG, GOTFlag));
       SDValue Load = DAG.getLoad(Ty, DL, DAG.getEntryNode(), GOT,
                                  MachinePointerInfo::getGOT(), false, false,
                                  false, 0);
-      unsigned LoFlag = HasMips64 ? MipsII::MO_GOT_OFST : MipsII::MO_ABS_LO;
+      unsigned LoFlag = IsN32OrN64 ? MipsII::MO_GOT_OFST : MipsII::MO_ABS_LO;
       SDValue Lo = DAG.getNode(MipsISD::Lo, DL, Ty,
                                getTargetNode(N, Ty, DAG, LoFlag));
       return DAG.getNode(ISD::ADD, DL, Ty, Load, Lo);
@@ -434,6 +434,8 @@ namespace llvm {
 
     bool HasMips64, IsN64, IsO32;
 
+    bool isN32() const { return Subtarget->isABI_N32(); }
+
   private:
     // Create a TargetGlobalAddress node.
     SDValue getTargetNode(GlobalAddressSDNode *N, EVT Ty, SelectionDAG &DAG,