From a257095ebb29fd223be2fdbf86d542c5bdfe05f0 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 11 Mar 2010 21:39:57 +0000
Subject: [PATCH] Remove getWidenVectorType, which is no longer used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98289 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/Target/TargetLowering.h        |  7 ----
 lib/CodeGen/SelectionDAG/TargetLowering.cpp | 14 --------
 lib/Target/X86/X86ISelLowering.cpp          | 38 ---------------------
 lib/Target/X86/X86ISelLowering.h            |  7 ----
 4 files changed, 66 deletions(-)

diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h
index 5bc1c0e6092..b19c20af346 100644
--- a/include/llvm/Target/TargetLowering.h
+++ b/include/llvm/Target/TargetLowering.h
@@ -323,13 +323,6 @@ public:
     return false;
   }
 
-  /// getWidenVectorType: given a vector type, returns the type to widen to
-  /// (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-  /// If there is no vector type that we want to widen to, returns MVT::Other
-  /// When and were to widen is target dependent based on the cost of
-  /// scalarizing vs using the wider vector type.
-  virtual EVT getWidenVectorType(EVT VT) const;
-
   /// isFPImmLegal - Returns true if the target can instruction select the
   /// specified FP immediate natively. If false, the legalizer will materialize
   /// the FP immediate as a load from a constant pool.
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index 0e54ca44aa5..2ae9d349f15 100644
--- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -792,20 +792,6 @@ unsigned TargetLowering::getVectorTypeBreakdown(LLVMContext &Context, EVT VT,
   return 1;
 }
 
-/// getWidenVectorType: given a vector type, returns the type to widen to
-/// (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-/// If there is no vector type that we want to widen to, returns MVT::Other
-/// When and where to widen is target dependent based on the cost of
-/// scalarizing vs using the wider vector type.
-EVT TargetLowering::getWidenVectorType(EVT VT) const {
-  assert(VT.isVector());
-  if (isTypeLegal(VT))
-    return VT;
- 
-  // Default is not to widen until moved to LegalizeTypes
-  return MVT::Other;
-}
-
 /// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
 /// function arguments in the caller parameter area.  This is the actual
 /// alignment, not its logarithm.
diff --git a/lib/Target/X86/X86ISelLowering.cpp b/lib/Target/X86/X86ISelLowering.cpp
index 9b7f6fc6aee..fc30b134e01 100644
--- a/lib/Target/X86/X86ISelLowering.cpp
+++ b/lib/Target/X86/X86ISelLowering.cpp
@@ -10292,41 +10292,3 @@ X86TargetLowering::getRegForInlineAsmConstraint(const std::string &Constraint,
 
   return Res;
 }
-
-//===----------------------------------------------------------------------===//
-//                           X86 Widen vector type
-//===----------------------------------------------------------------------===//
-
-/// getWidenVectorType: given a vector type, returns the type to widen
-/// to (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-/// If there is no vector type that we want to widen to, returns MVT::Other
-/// When and where to widen is target dependent based on the cost of
-/// scalarizing vs using the wider vector type.
-
-EVT X86TargetLowering::getWidenVectorType(EVT VT) const {
-  assert(VT.isVector());
-  if (isTypeLegal(VT))
-    return VT;
-
-  // TODO: In computeRegisterProperty, we can compute the list of legal vector
-  //       type based on element type.  This would speed up our search (though
-  //       it may not be worth it since the size of the list is relatively
-  //       small).
-  EVT EltVT = VT.getVectorElementType();
-  unsigned NElts = VT.getVectorNumElements();
-
-  // On X86, it make sense to widen any vector wider than 1
-  if (NElts <= 1)
-    return MVT::Other;
-
-  for (unsigned nVT = MVT::FIRST_VECTOR_VALUETYPE;
-       nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
-    EVT SVT = (MVT::SimpleValueType)nVT;
-
-    if (isTypeLegal(SVT) &&
-        SVT.getVectorElementType() == EltVT &&
-        SVT.getVectorNumElements() > NElts)
-      return SVT;
-  }
-  return MVT::Other;
-}
diff --git a/lib/Target/X86/X86ISelLowering.h b/lib/Target/X86/X86ISelLowering.h
index 4c12fcc32fd..4c07b65d4d3 100644
--- a/lib/Target/X86/X86ISelLowering.h
+++ b/lib/Target/X86/X86ISelLowering.h
@@ -564,13 +564,6 @@ namespace llvm {
       (VT == MVT::f32 && X86ScalarSSEf32);   // f32 is when SSE1
     }
 
-    /// getWidenVectorType: given a vector type, returns the type to widen
-    /// to (e.g., v7i8 to v8i8). If the vector type is legal, it returns itself.
-    /// If there is no vector type that we want to widen to, returns EVT::Other
-    /// When and were to widen is target dependent based on the cost of
-    /// scalarizing vs using the wider vector type.
-    virtual EVT getWidenVectorType(EVT VT) const;
-
     /// createFastISel - This method returns a target specific FastISel object,
     /// or null if the target does not support "fast" ISel.
     virtual FastISel *