257 lines
11 KiB
C++
257 lines
11 KiB
C++
/*
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Copyright (c) 2010-2012, Intel Corporation
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Intel Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/** @file llvmutil.h
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@brief Header file with declarations for various LLVM utility stuff
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*/
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#ifndef ISPC_LLVMUTIL_H
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#define ISPC_LLVMUTIL_H 1
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#include <llvm/LLVMContext.h>
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#include <llvm/Type.h>
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#include <llvm/DerivedTypes.h>
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#include <llvm/Constants.h>
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namespace llvm {
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class PHINode;
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class InsertElementInst;
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}
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// llvm::Type *s are no longer const in llvm 3.0
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#if defined(LLVM_3_0) || defined(LLVM_3_0svn) || defined(LLVM_3_1svn)
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#define LLVM_TYPE_CONST
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#else
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#define LLVM_TYPE_CONST const
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#endif
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/** This structure holds pointers to a variety of LLVM types; code
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elsewhere can use them from here, ratherthan needing to make more
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verbose LLVM API calls.
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*/
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struct LLVMTypes {
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static LLVM_TYPE_CONST llvm::Type *VoidType;
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static LLVM_TYPE_CONST llvm::PointerType *VoidPointerType;
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static LLVM_TYPE_CONST llvm::Type *PointerIntType;
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static LLVM_TYPE_CONST llvm::Type *BoolType;
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static LLVM_TYPE_CONST llvm::Type *Int8Type;
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static LLVM_TYPE_CONST llvm::Type *Int16Type;
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static LLVM_TYPE_CONST llvm::Type *Int32Type;
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static LLVM_TYPE_CONST llvm::Type *Int64Type;
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static LLVM_TYPE_CONST llvm::Type *FloatType;
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static LLVM_TYPE_CONST llvm::Type *DoubleType;
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static LLVM_TYPE_CONST llvm::Type *Int8PointerType;
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static LLVM_TYPE_CONST llvm::Type *Int16PointerType;
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static LLVM_TYPE_CONST llvm::Type *Int32PointerType;
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static LLVM_TYPE_CONST llvm::Type *Int64PointerType;
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static LLVM_TYPE_CONST llvm::Type *FloatPointerType;
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static LLVM_TYPE_CONST llvm::Type *DoublePointerType;
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static LLVM_TYPE_CONST llvm::VectorType *MaskType;
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static LLVM_TYPE_CONST llvm::VectorType *BoolVectorType;
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static LLVM_TYPE_CONST llvm::VectorType *Int1VectorType;
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static LLVM_TYPE_CONST llvm::VectorType *Int8VectorType;
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static LLVM_TYPE_CONST llvm::VectorType *Int16VectorType;
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static LLVM_TYPE_CONST llvm::VectorType *Int32VectorType;
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static LLVM_TYPE_CONST llvm::VectorType *Int64VectorType;
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static LLVM_TYPE_CONST llvm::VectorType *FloatVectorType;
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static LLVM_TYPE_CONST llvm::VectorType *DoubleVectorType;
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static LLVM_TYPE_CONST llvm::Type *Int8VectorPointerType;
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static LLVM_TYPE_CONST llvm::Type *Int16VectorPointerType;
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static LLVM_TYPE_CONST llvm::Type *Int32VectorPointerType;
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static LLVM_TYPE_CONST llvm::Type *Int64VectorPointerType;
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static LLVM_TYPE_CONST llvm::Type *FloatVectorPointerType;
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static LLVM_TYPE_CONST llvm::Type *DoubleVectorPointerType;
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static LLVM_TYPE_CONST llvm::VectorType *VoidPointerVectorType;
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};
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/** These variables hold the corresponding LLVM constant values as a
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convenience to code elsewhere in the system.
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*/
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extern llvm::Constant *LLVMTrue, *LLVMFalse;
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/** This should be called early in initialization to initialize the members
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of LLVMTypes and the LLVMTrue/LLVMFalse constants. However, it can't
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be called until the compilation target is known.
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*/
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struct Target;
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extern void InitLLVMUtil(llvm::LLVMContext *ctx, Target target);
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/** Returns an LLVM i8 constant of the given value */
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extern llvm::ConstantInt *LLVMInt8(int8_t i);
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/** Returns an LLVM i8 constant of the given value */
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extern llvm::ConstantInt *LLVMUInt8(uint8_t i);
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/** Returns an LLVM i16 constant of the given value */
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extern llvm::ConstantInt *LLVMInt16(int16_t i);
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/** Returns an LLVM i16 constant of the given value */
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extern llvm::ConstantInt *LLVMUInt16(uint16_t i);
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/** Returns an LLVM i32 constant of the given value */
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extern llvm::ConstantInt *LLVMInt32(int32_t i);
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/** Returns an LLVM i32 constant of the given value */
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extern llvm::ConstantInt *LLVMUInt32(uint32_t i);
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/** Returns an LLVM i64 constant of the given value */
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extern llvm::ConstantInt *LLVMInt64(int64_t i);
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/** Returns an LLVM i64 constant of the given value */
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extern llvm::ConstantInt *LLVMUInt64(uint64_t i);
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/** Returns an LLVM float constant of the given value */
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extern llvm::Constant *LLVMFloat(float f);
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/** Returns an LLVM double constant of the given value */
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extern llvm::Constant *LLVMDouble(double f);
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/** Returns an LLVM boolean vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMBoolVector(bool v);
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/** Returns an LLVM i8 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMInt8Vector(int8_t i);
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/** Returns an LLVM i8 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMUInt8Vector(uint8_t i);
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/** Returns an LLVM i16 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMInt16Vector(int16_t i);
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/** Returns an LLVM i16 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMUInt16Vector(uint16_t i);
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/** Returns an LLVM i32 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMInt32Vector(int32_t i);
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/** Returns an LLVM i32 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMUInt32Vector(uint32_t i);
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/** Returns an LLVM i64 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMInt64Vector(int64_t i);
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/** Returns an LLVM i64 vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMUInt64Vector(uint64_t i);
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/** Returns an LLVM float vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMFloatVector(float f);
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/** Returns an LLVM double vector constant of the given value smeared
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across all elements */
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extern llvm::Constant *LLVMDoubleVector(double f);
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/** Returns a constant integer or vector (according to the given type) of
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the given signed integer value. */
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extern llvm::Constant *LLVMIntAsType(int64_t, LLVM_TYPE_CONST llvm::Type *t);
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/** Returns a constant integer or vector (according to the given type) of
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the given unsigned integer value. */
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extern llvm::Constant *LLVMUIntAsType(uint64_t, LLVM_TYPE_CONST llvm::Type *t);
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/** Returns an LLVM boolean vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMBoolVector(const bool *v);
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/** Returns an LLVM i8 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMInt8Vector(const int8_t *i);
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/** Returns an LLVM i8 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMUInt8Vector(const uint8_t *i);
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/** Returns an LLVM i16 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMInt16Vector(const int16_t *i);
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/** Returns an LLVM i16 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMUInt16Vector(const uint16_t *i);
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/** Returns an LLVM i32 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMInt32Vector(const int32_t *i);
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/** Returns an LLVM i32 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMUInt32Vector(const uint32_t *i);
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/** Returns an LLVM i64 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMInt64Vector(const int64_t *i);
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/** Returns an LLVM i64 vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMUInt64Vector(const uint64_t *i);
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/** Returns an LLVM float vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMFloatVector(const float *f);
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/** Returns an LLVM double vector based on the given array of values.
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The array should have g->target.vectorWidth elements. */
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extern llvm::Constant *LLVMDoubleVector(const double *f);
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/** LLVM constant value representing an 'all on' SIMD lane mask */
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extern llvm::Constant *LLVMMaskAllOn;
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/** LLVM constant value representing an 'all off' SIMD lane mask */
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extern llvm::Constant *LLVMMaskAllOff;
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/** Tests to see if all of the elements of the vector in the 'v' parameter
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are equal. Like lValuesAreEqual(), this is a conservative test and may
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return false for arrays where the values are actually all equal. */
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extern bool LLVMVectorValuesAllEqual(llvm::Value *v, int vectorLength,
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std::vector<llvm::PHINode *> &seenPhis);
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void LLVMFlattenInsertChain(llvm::InsertElementInst *ie, int vectorWidth,
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llvm::Value **elements);
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/** This is a utility routine for debugging that dumps out the given LLVM
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value as well as (recursively) all of the other values that it depends
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on. */
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extern void LLVMDumpValue(llvm::Value *v);
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/** This function takes two vectors, expected to be the same length, and
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returns a new vector of twice the length that represents concatenating
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the two of them. */
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extern llvm::Value *LLVMConcatVectors(llvm::Value *v1, llvm::Value *v2,
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llvm::Instruction *insertBefore);
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/** This is a utility function for vector shuffling; it takes two vectors
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v1 and v2, and a compile-time constant set of integer permutations in
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shuf[] and returns a new vector of length shufSize that represents the
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corresponding shufflevector operation. */
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extern llvm::Value *LLVMShuffleVectors(llvm::Value *v1, llvm::Value *v2,
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int32_t shuf[], int shufSize,
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llvm::Instruction *insertBefore);
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#endif // ISPC_LLVMUTIL_H
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