From e09cac9a6754be488a493568527f503c01a5e0f7 Mon Sep 17 00:00:00 2001
From: Patrik Hagglund <patrik.h.hagglund@ericsson.com>
Date: Wed, 19 Dec 2012 12:02:25 +0000
Subject: [PATCH] Change TargetLowering::getTypeForExtArgOrReturn to take and
 return MVTs, instead of EVTs.

llvm-svn: 170537
---
 llvm/include/llvm/CodeGen/ValueTypes.h              | 21 +++++++++++++++++++++
 llvm/include/llvm/Target/TargetLowering.h           |  4 ++--
 .../CodeGen/SelectionDAG/SelectionDAGBuilder.cpp    |  2 +-
 llvm/lib/Target/X86/X86ISelLowering.cpp             |  6 +++---
 llvm/lib/Target/X86/X86ISelLowering.h               |  5 ++---
 5 files changed, 29 insertions(+), 9 deletions(-)

diff --git a/llvm/include/llvm/CodeGen/ValueTypes.h b/llvm/include/llvm/CodeGen/ValueTypes.h
index 2401992..b9f4295 100644
--- a/llvm/include/llvm/CodeGen/ValueTypes.h
+++ b/llvm/include/llvm/CodeGen/ValueTypes.h
@@ -389,6 +389,27 @@ namespace llvm {
       return getStoreSize() * 8;
     }
 
+    /// Return true if this has more bits than VT.
+    bool bitsGT(MVT VT) const {
+      return getSizeInBits() > VT.getSizeInBits();
+    }
+
+    /// Return true if this has no less bits than VT.
+    bool bitsGE(MVT VT) const {
+      return getSizeInBits() >= VT.getSizeInBits();
+    }
+
+    /// Return true if this has less bits than VT.
+    bool bitsLT(MVT VT) const {
+      return getSizeInBits() < VT.getSizeInBits();
+    }
+
+    /// Return true if this has no more bits than VT.
+    bool bitsLE(MVT VT) const {
+      return getSizeInBits() <= VT.getSizeInBits();
+    }
+
+
     static MVT getFloatingPointVT(unsigned BitWidth) {
       switch (BitWidth) {
       default:
diff --git a/llvm/include/llvm/Target/TargetLowering.h b/llvm/include/llvm/Target/TargetLowering.h
index c456e42..e159454 100644
--- a/llvm/include/llvm/Target/TargetLowering.h
+++ b/llvm/include/llvm/Target/TargetLowering.h
@@ -1446,9 +1446,9 @@ public:
   /// but this is not true all the time, e.g. i1 on x86-64. It is also not
   /// necessary for non-C calling conventions. The frontend should handle this
   /// and include all of the necessary information.
-  virtual EVT getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT,
+  virtual MVT getTypeForExtArgOrReturn(MVT VT,
                                        ISD::NodeType /*ExtendKind*/) const {
-    EVT MinVT = getRegisterType(Context, MVT::i32);
+    MVT MinVT = getRegisterType(MVT::i32);
     return VT.bitsLT(MinVT) ? MinVT : VT;
   }
 
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
index 440cc58..8d325d9 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
@@ -1239,7 +1239,7 @@ void SelectionDAGBuilder::visitRet(const ReturnInst &I) {
           ExtendKind = ISD::ZERO_EXTEND;
 
         if (ExtendKind != ISD::ANY_EXTEND && VT.isInteger())
-          VT = TLI.getTypeForExtArgOrReturn(*DAG.getContext(), VT, ExtendKind);
+          VT = TLI.getTypeForExtArgOrReturn(VT.getSimpleVT(), ExtendKind);
 
         unsigned NumParts = TLI.getNumRegisters(*DAG.getContext(), VT);
         MVT PartVT = TLI.getRegisterType(*DAG.getContext(), VT);
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index dd49d77..1e64741 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -1696,8 +1696,8 @@ bool X86TargetLowering::isUsedByReturnOnly(SDNode *N, SDValue &Chain) const {
   return true;
 }
 
-EVT
-X86TargetLowering::getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT,
+MVT
+X86TargetLowering::getTypeForExtArgOrReturn(MVT VT,
                                             ISD::NodeType ExtendKind) const {
   MVT ReturnMVT;
   // TODO: Is this also valid on 32-bit?
@@ -1706,7 +1706,7 @@ X86TargetLowering::getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT,
   else
     ReturnMVT = MVT::i32;
 
-  EVT MinVT = getRegisterType(Context, ReturnMVT);
+  MVT MinVT = getRegisterType(ReturnMVT);
   return VT.bitsLT(MinVT) ? MinVT : VT;
 }
 
diff --git a/llvm/lib/Target/X86/X86ISelLowering.h b/llvm/lib/Target/X86/X86ISelLowering.h
index 8ac543d..5be7f09 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.h
+++ b/llvm/lib/Target/X86/X86ISelLowering.h
@@ -867,9 +867,8 @@ namespace llvm {
 
     virtual bool mayBeEmittedAsTailCall(CallInst *CI) const;
 
-    virtual EVT
-    getTypeForExtArgOrReturn(LLVMContext &Context, EVT VT,
-                             ISD::NodeType ExtendKind) const;
+    virtual MVT
+    getTypeForExtArgOrReturn(MVT VT, ISD::NodeType ExtendKind) const;
 
     virtual bool
     CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
-- 
2.7.4