From b6cd35729cd0372420dd3fad9adcd1314ea53cf8 Mon Sep 17 00:00:00 2001
From: Tim Northover <tnorthover@apple.com>
Date: Tue, 24 Jun 2014 12:07:44 +0000
Subject: [PATCH] ARM: remove dead CodeGen functions.

These two are no longer being used by NEON codegen.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@211586 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/CGBuiltin.cpp     | 30 ------------------------------
 lib/CodeGen/CodeGenFunction.h |  3 ---
 2 files changed, 33 deletions(-)

diff --git a/lib/CodeGen/CGBuiltin.cpp b/lib/CodeGen/CGBuiltin.cpp
index a177fd71c7..608e9d9a16 100644
--- a/lib/CodeGen/CGBuiltin.cpp
+++ b/lib/CodeGen/CGBuiltin.cpp
@@ -1786,36 +1786,6 @@ Value *CodeGenFunction::EmitNeonRShiftImm(Value *Vec, Value *Shift,
     return Builder.CreateAShr(Vec, Shift, name);
 }
 
-Value *CodeGenFunction::EmitConcatVectors(Value *Lo, Value *Hi,
-                                          llvm::Type *ArgTy) {
-  unsigned NumElts = ArgTy->getVectorNumElements();
-  SmallVector<Constant *, 16> Indices;
-  for (unsigned i = 0; i < 2 * NumElts; ++i)
-    Indices.push_back(ConstantInt::get(Int32Ty, i));
-
-  Constant *Mask = ConstantVector::get(Indices);
-  Value *LoCast = Builder.CreateBitCast(Lo, ArgTy);
-  Value *HiCast = Builder.CreateBitCast(Hi, ArgTy);
-  return Builder.CreateShuffleVector(LoCast, HiCast, Mask, "concat");
-}
-
-Value *CodeGenFunction::EmitExtractHigh(Value *Vec, llvm::Type *ResTy) {
-  unsigned NumElts = ResTy->getVectorNumElements();
-  SmallVector<Constant *, 8> Indices;
-
-  llvm::Type *InTy = llvm::VectorType::get(ResTy->getVectorElementType(),
-                                           NumElts * 2);
-  Value *VecCast = Builder.CreateBitCast(Vec, InTy);
-
-  // extract_high is a shuffle on the second half of the input indices: E.g. 4,
-  // 5, 6, 7 if we're extracting <4 x i16> from <8 x i16>.
-  for (unsigned i = 0; i < NumElts; ++i)
-    Indices.push_back(ConstantInt::get(Int32Ty, NumElts + i));
-
-  Constant *Mask = ConstantVector::get(Indices);
-  return Builder.CreateShuffleVector(VecCast, VecCast, Mask, "concat");
-}
-
 /// GetPointeeAlignment - Given an expression with a pointer type, find the
 /// alignment of the type referenced by the pointer.  Skip over implicit
 /// casts.
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index a222f646c6..1ce89642ff 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -2234,9 +2234,6 @@ public:
                                    bool negateForRightShift);
   llvm::Value *EmitNeonRShiftImm(llvm::Value *Vec, llvm::Value *Amt,
                                  llvm::Type *Ty, bool usgn, const char *name);
-  llvm::Value *EmitConcatVectors(llvm::Value *Lo, llvm::Value *Hi,
-                                 llvm::Type *ArgTy);
-  llvm::Value *EmitExtractHigh(llvm::Value *In, llvm::Type *ResTy);
   // Helper functions for EmitAArch64BuiltinExpr.
   llvm::Value *vectorWrapScalar8(llvm::Value *Op);
   llvm::Value *vectorWrapScalar16(llvm::Value *Op);
-- 
2.40.0