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	This is useful for some ARM intrinsics such as VCVTN which does a <4 x float> <-> <4 x half> conversion. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191870 91177308-0d34-0410-b5e6-96231b3b80d8
		
			
				
	
	
		
			288 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			288 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===----------- ValueTypes.cpp - Implementation of EVT methods -----------===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| //
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| // This file implements methods in the CodeGen/ValueTypes.h header.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| #include "llvm/CodeGen/ValueTypes.h"
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| #include "llvm/ADT/StringExtras.h"
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| #include "llvm/IR/DerivedTypes.h"
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| #include "llvm/IR/LLVMContext.h"
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| #include "llvm/IR/Type.h"
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| #include "llvm/Support/ErrorHandling.h"
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| using namespace llvm;
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| 
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| EVT EVT::changeExtendedVectorElementTypeToInteger() const {
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|   LLVMContext &Context = LLVMTy->getContext();
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|   EVT IntTy = getIntegerVT(Context, getVectorElementType().getSizeInBits());
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|   return getVectorVT(Context, IntTy, getVectorNumElements());
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| }
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| 
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| EVT EVT::getExtendedIntegerVT(LLVMContext &Context, unsigned BitWidth) {
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|   EVT VT;
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|   VT.LLVMTy = IntegerType::get(Context, BitWidth);
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|   assert(VT.isExtended() && "Type is not extended!");
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|   return VT;
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| }
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| 
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| EVT EVT::getExtendedVectorVT(LLVMContext &Context, EVT VT,
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|                              unsigned NumElements) {
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|   EVT ResultVT;
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|   ResultVT.LLVMTy = VectorType::get(VT.getTypeForEVT(Context), NumElements);
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|   assert(ResultVT.isExtended() && "Type is not extended!");
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|   return ResultVT;
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| }
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| 
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| bool EVT::isExtendedFloatingPoint() const {
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|   assert(isExtended() && "Type is not extended!");
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|   return LLVMTy->isFPOrFPVectorTy();
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| }
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| 
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| bool EVT::isExtendedInteger() const {
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|   assert(isExtended() && "Type is not extended!");
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|   return LLVMTy->isIntOrIntVectorTy();
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| }
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| 
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| bool EVT::isExtendedVector() const {
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|   assert(isExtended() && "Type is not extended!");
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|   return LLVMTy->isVectorTy();
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| }
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| 
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| bool EVT::isExtended16BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 16;
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| }
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| 
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| bool EVT::isExtended32BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 32;
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| }
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| 
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| bool EVT::isExtended64BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 64;
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| }
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| 
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| bool EVT::isExtended128BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 128;
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| }
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| 
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| bool EVT::isExtended256BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 256;
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| }
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| 
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| bool EVT::isExtended512BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 512;
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| }
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| 
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| bool EVT::isExtended1024BitVector() const {
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|   return isExtendedVector() && getExtendedSizeInBits() == 1024;
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| }
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| 
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| EVT EVT::getExtendedVectorElementType() const {
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|   assert(isExtended() && "Type is not extended!");
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|   return EVT::getEVT(cast<VectorType>(LLVMTy)->getElementType());
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| }
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| 
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| unsigned EVT::getExtendedVectorNumElements() const {
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|   assert(isExtended() && "Type is not extended!");
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|   return cast<VectorType>(LLVMTy)->getNumElements();
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| }
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| 
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| unsigned EVT::getExtendedSizeInBits() const {
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|   assert(isExtended() && "Type is not extended!");
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|   if (IntegerType *ITy = dyn_cast<IntegerType>(LLVMTy))
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|     return ITy->getBitWidth();
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|   if (VectorType *VTy = dyn_cast<VectorType>(LLVMTy))
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|     return VTy->getBitWidth();
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|   llvm_unreachable("Unrecognized extended type!");
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| }
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| 
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| /// getEVTString - This function returns value type as a string, e.g. "i32".
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| std::string EVT::getEVTString() const {
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|   switch (V.SimpleTy) {
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|   default:
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|     if (isVector())
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|       return "v" + utostr(getVectorNumElements()) +
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|              getVectorElementType().getEVTString();
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|     if (isInteger())
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|       return "i" + utostr(getSizeInBits());
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|     llvm_unreachable("Invalid EVT!");
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|   case MVT::i1:      return "i1";
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|   case MVT::i8:      return "i8";
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|   case MVT::i16:     return "i16";
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|   case MVT::i32:     return "i32";
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|   case MVT::i64:     return "i64";
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|   case MVT::i128:    return "i128";
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|   case MVT::f16:     return "f16";
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|   case MVT::f32:     return "f32";
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|   case MVT::f64:     return "f64";
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|   case MVT::f80:     return "f80";
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|   case MVT::f128:    return "f128";
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|   case MVT::ppcf128: return "ppcf128";
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|   case MVT::isVoid:  return "isVoid";
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|   case MVT::Other:   return "ch";
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|   case MVT::Glue:    return "glue";
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|   case MVT::x86mmx:  return "x86mmx";
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|   case MVT::v2i1:    return "v2i1";
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|   case MVT::v4i1:    return "v4i1";
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|   case MVT::v8i1:    return "v8i1";
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|   case MVT::v16i1:   return "v16i1";
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|   case MVT::v32i1:   return "v32i1";
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|   case MVT::v64i1:   return "v64i1";
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|   case MVT::v1i8:    return "v1i8";
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|   case MVT::v2i8:    return "v2i8";
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|   case MVT::v4i8:    return "v4i8";
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|   case MVT::v8i8:    return "v8i8";
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|   case MVT::v16i8:   return "v16i8";
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|   case MVT::v32i8:   return "v32i8";
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|   case MVT::v64i8:   return "v64i8";
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|   case MVT::v1i16:   return "v1i16";
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|   case MVT::v2i16:   return "v2i16";
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|   case MVT::v4i16:   return "v4i16";
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|   case MVT::v8i16:   return "v8i16";
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|   case MVT::v16i16:  return "v16i16";
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|   case MVT::v32i16:  return "v32i16";
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|   case MVT::v1i32:   return "v1i32";
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|   case MVT::v2i32:   return "v2i32";
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|   case MVT::v4i32:   return "v4i32";
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|   case MVT::v8i32:   return "v8i32";
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|   case MVT::v16i32:  return "v16i32";
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|   case MVT::v1i64:   return "v1i64";
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|   case MVT::v2i64:   return "v2i64";
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|   case MVT::v4i64:   return "v4i64";
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|   case MVT::v8i64:   return "v8i64";
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|   case MVT::v16i64:  return "v16i64";
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|   case MVT::v1f32:   return "v1f32";
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|   case MVT::v2f32:   return "v2f32";
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|   case MVT::v2f16:   return "v2f16";
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|   case MVT::v4f16:   return "v4f16";
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|   case MVT::v8f16:   return "v8f16";
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|   case MVT::v4f32:   return "v4f32";
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|   case MVT::v8f32:   return "v8f32";
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|   case MVT::v16f32:  return "v16f32";
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|   case MVT::v1f64:   return "v1f64";
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|   case MVT::v2f64:   return "v2f64";
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|   case MVT::v4f64:   return "v4f64";
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|   case MVT::v8f64:   return "v8f64";
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|   case MVT::Metadata:return "Metadata";
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|   case MVT::Untyped: return "Untyped";
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|   }
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| }
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| 
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| /// getTypeForEVT - This method returns an LLVM type corresponding to the
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| /// specified EVT.  For integer types, this returns an unsigned type.  Note
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| /// that this will abort for types that cannot be represented.
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| Type *EVT::getTypeForEVT(LLVMContext &Context) const {
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|   switch (V.SimpleTy) {
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|   default:
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|     assert(isExtended() && "Type is not extended!");
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|     return LLVMTy;
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|   case MVT::isVoid:  return Type::getVoidTy(Context);
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|   case MVT::i1:      return Type::getInt1Ty(Context);
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|   case MVT::i8:      return Type::getInt8Ty(Context);
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|   case MVT::i16:     return Type::getInt16Ty(Context);
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|   case MVT::i32:     return Type::getInt32Ty(Context);
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|   case MVT::i64:     return Type::getInt64Ty(Context);
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|   case MVT::i128:    return IntegerType::get(Context, 128);
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|   case MVT::f16:     return Type::getHalfTy(Context);
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|   case MVT::f32:     return Type::getFloatTy(Context);
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|   case MVT::f64:     return Type::getDoubleTy(Context);
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|   case MVT::f80:     return Type::getX86_FP80Ty(Context);
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|   case MVT::f128:    return Type::getFP128Ty(Context);
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|   case MVT::ppcf128: return Type::getPPC_FP128Ty(Context);
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|   case MVT::x86mmx:  return Type::getX86_MMXTy(Context);
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|   case MVT::v2i1:    return VectorType::get(Type::getInt1Ty(Context), 2);
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|   case MVT::v4i1:    return VectorType::get(Type::getInt1Ty(Context), 4);
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|   case MVT::v8i1:    return VectorType::get(Type::getInt1Ty(Context), 8);
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|   case MVT::v16i1:   return VectorType::get(Type::getInt1Ty(Context), 16);
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|   case MVT::v32i1:   return VectorType::get(Type::getInt1Ty(Context), 32);
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|   case MVT::v64i1:   return VectorType::get(Type::getInt1Ty(Context), 64);
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|   case MVT::v1i8:    return VectorType::get(Type::getInt8Ty(Context), 1);
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|   case MVT::v2i8:    return VectorType::get(Type::getInt8Ty(Context), 2);
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|   case MVT::v4i8:    return VectorType::get(Type::getInt8Ty(Context), 4);
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|   case MVT::v8i8:    return VectorType::get(Type::getInt8Ty(Context), 8);
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|   case MVT::v16i8:   return VectorType::get(Type::getInt8Ty(Context), 16);
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|   case MVT::v32i8:   return VectorType::get(Type::getInt8Ty(Context), 32);
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|   case MVT::v64i8:   return VectorType::get(Type::getInt8Ty(Context), 64);
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|   case MVT::v1i16:   return VectorType::get(Type::getInt16Ty(Context), 1);
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|   case MVT::v2i16:   return VectorType::get(Type::getInt16Ty(Context), 2);
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|   case MVT::v4i16:   return VectorType::get(Type::getInt16Ty(Context), 4);
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|   case MVT::v8i16:   return VectorType::get(Type::getInt16Ty(Context), 8);
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|   case MVT::v16i16:  return VectorType::get(Type::getInt16Ty(Context), 16);
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|   case MVT::v32i16:  return VectorType::get(Type::getInt16Ty(Context), 32);
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|   case MVT::v1i32:   return VectorType::get(Type::getInt32Ty(Context), 1);
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|   case MVT::v2i32:   return VectorType::get(Type::getInt32Ty(Context), 2);
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|   case MVT::v4i32:   return VectorType::get(Type::getInt32Ty(Context), 4);
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|   case MVT::v8i32:   return VectorType::get(Type::getInt32Ty(Context), 8);
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|   case MVT::v16i32:  return VectorType::get(Type::getInt32Ty(Context), 16);
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|   case MVT::v1i64:   return VectorType::get(Type::getInt64Ty(Context), 1);
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|   case MVT::v2i64:   return VectorType::get(Type::getInt64Ty(Context), 2);
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|   case MVT::v4i64:   return VectorType::get(Type::getInt64Ty(Context), 4);
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|   case MVT::v8i64:   return VectorType::get(Type::getInt64Ty(Context), 8);
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|   case MVT::v16i64:  return VectorType::get(Type::getInt64Ty(Context), 16);
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|   case MVT::v2f16:   return VectorType::get(Type::getHalfTy(Context), 2);
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|   case MVT::v4f16:   return VectorType::get(Type::getHalfTy(Context), 4);
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|   case MVT::v8f16:   return VectorType::get(Type::getHalfTy(Context), 8);
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|   case MVT::v1f32:   return VectorType::get(Type::getFloatTy(Context), 1);
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|   case MVT::v2f32:   return VectorType::get(Type::getFloatTy(Context), 2);
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|   case MVT::v4f32:   return VectorType::get(Type::getFloatTy(Context), 4);
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|   case MVT::v8f32:   return VectorType::get(Type::getFloatTy(Context), 8);
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|   case MVT::v16f32:   return VectorType::get(Type::getFloatTy(Context), 16);
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|   case MVT::v1f64:   return VectorType::get(Type::getDoubleTy(Context), 1);
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|   case MVT::v2f64:   return VectorType::get(Type::getDoubleTy(Context), 2);
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|   case MVT::v4f64:   return VectorType::get(Type::getDoubleTy(Context), 4); 
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|   case MVT::v8f64:   return VectorType::get(Type::getDoubleTy(Context), 8); 
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|   case MVT::Metadata: return Type::getMetadataTy(Context);
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|  }
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| }
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| 
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| /// Return the value type corresponding to the specified type.  This returns all
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| /// pointers as MVT::iPTR.  If HandleUnknown is true, unknown types are returned
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| /// as Other, otherwise they are invalid.
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| MVT MVT::getVT(Type *Ty, bool HandleUnknown){
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|   switch (Ty->getTypeID()) {
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|   default:
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|     if (HandleUnknown) return MVT(MVT::Other);
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|     llvm_unreachable("Unknown type!");
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|   case Type::VoidTyID:
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|     return MVT::isVoid;
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|   case Type::IntegerTyID:
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|     return getIntegerVT(cast<IntegerType>(Ty)->getBitWidth());
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|   case Type::HalfTyID:      return MVT(MVT::f16);
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|   case Type::FloatTyID:     return MVT(MVT::f32);
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|   case Type::DoubleTyID:    return MVT(MVT::f64);
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|   case Type::X86_FP80TyID:  return MVT(MVT::f80);
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|   case Type::X86_MMXTyID:   return MVT(MVT::x86mmx);
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|   case Type::FP128TyID:     return MVT(MVT::f128);
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|   case Type::PPC_FP128TyID: return MVT(MVT::ppcf128);
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|   case Type::PointerTyID:   return MVT(MVT::iPTR);
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|   case Type::VectorTyID: {
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|     VectorType *VTy = cast<VectorType>(Ty);
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|     return getVectorVT(
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|       getVT(VTy->getElementType(), false), VTy->getNumElements());
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|   }
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|   }
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| }
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| 
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| /// getEVT - Return the value type corresponding to the specified type.  This
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| /// returns all pointers as MVT::iPTR.  If HandleUnknown is true, unknown types
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| /// are returned as Other, otherwise they are invalid.
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| EVT EVT::getEVT(Type *Ty, bool HandleUnknown){
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|   switch (Ty->getTypeID()) {
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|   default:
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|     return MVT::getVT(Ty, HandleUnknown);
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|   case Type::IntegerTyID:
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|     return getIntegerVT(Ty->getContext(), cast<IntegerType>(Ty)->getBitWidth());
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|   case Type::VectorTyID: {
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|     VectorType *VTy = cast<VectorType>(Ty);
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|     return getVectorVT(Ty->getContext(), getEVT(VTy->getElementType(), false),
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|                        VTy->getNumElements());
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|   }
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|   }
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| }
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