213 lines
9.9 KiB
C
213 lines
9.9 KiB
C
|
//===- BuildLibCalls.h - Utility builder for libcalls -----------*- C++ -*-===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
//
|
||
|
|
// This file exposes an interface to build some C language libcalls for
|
||
|
|
// optimization passes that need to call the various functions.
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#ifndef LLVM_TRANSFORMS_UTILS_BUILDLIBCALLS_H
|
||
|
|
#define LLVM_TRANSFORMS_UTILS_BUILDLIBCALLS_H
|
||
|
|
|
||
|
|
#include "llvm/Analysis/TargetLibraryInfo.h"
|
||
|
|
|
||
|
|
namespace llvm {
|
||
|
|
class Value;
|
||
|
|
class DataLayout;
|
||
|
|
class IRBuilderBase;
|
||
|
|
|
||
|
|
/// Analyze the name and prototype of the given function and set any
|
||
|
|
/// applicable attributes.
|
||
|
|
/// If the library function is unavailable, this doesn't modify it.
|
||
|
|
///
|
||
|
|
/// Returns true if any attributes were set and false otherwise.
|
||
|
|
bool inferLibFuncAttributes(Function &F, const TargetLibraryInfo &TLI);
|
||
|
|
bool inferLibFuncAttributes(Module *M, StringRef Name, const TargetLibraryInfo &TLI);
|
||
|
|
|
||
|
|
/// Check whether the overloaded floating point function
|
||
|
|
/// corresponding to \a Ty is available.
|
||
|
|
bool hasFloatFn(const TargetLibraryInfo *TLI, Type *Ty,
|
||
|
|
LibFunc DoubleFn, LibFunc FloatFn, LibFunc LongDoubleFn);
|
||
|
|
|
||
|
|
/// Get the name of the overloaded floating point function
|
||
|
|
/// corresponding to \a Ty.
|
||
|
|
StringRef getFloatFnName(const TargetLibraryInfo *TLI, Type *Ty,
|
||
|
|
LibFunc DoubleFn, LibFunc FloatFn,
|
||
|
|
LibFunc LongDoubleFn);
|
||
|
|
|
||
|
|
/// Return V if it is an i8*, otherwise cast it to i8*.
|
||
|
|
Value *castToCStr(Value *V, IRBuilderBase &B);
|
||
|
|
|
||
|
|
/// Emit a call to the strlen function to the builder, for the specified
|
||
|
|
/// pointer. Ptr is required to be some pointer type, and the return value has
|
||
|
|
/// 'intptr_t' type.
|
||
|
|
Value *emitStrLen(Value *Ptr, IRBuilderBase &B, const DataLayout &DL,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strdup function to the builder, for the specified
|
||
|
|
/// pointer. Ptr is required to be some pointer type, and the return value has
|
||
|
|
/// 'i8*' type.
|
||
|
|
Value *emitStrDup(Value *Ptr, IRBuilderBase &B, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strnlen function to the builder, for the specified
|
||
|
|
/// pointer. Ptr is required to be some pointer type, MaxLen must be of size_t
|
||
|
|
/// type, and the return value has 'intptr_t' type.
|
||
|
|
Value *emitStrNLen(Value *Ptr, Value *MaxLen, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strchr function to the builder, for the specified
|
||
|
|
/// pointer and character. Ptr is required to be some pointer type, and the
|
||
|
|
/// return value has 'i8*' type.
|
||
|
|
Value *emitStrChr(Value *Ptr, char C, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strncmp function to the builder.
|
||
|
|
Value *emitStrNCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strcpy function to the builder, for the specified
|
||
|
|
/// pointer arguments.
|
||
|
|
Value *emitStrCpy(Value *Dst, Value *Src, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the stpcpy function to the builder, for the specified
|
||
|
|
/// pointer arguments.
|
||
|
|
Value *emitStpCpy(Value *Dst, Value *Src, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strncpy function to the builder, for the specified
|
||
|
|
/// pointer arguments and length.
|
||
|
|
Value *emitStrNCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the stpncpy function to the builder, for the specified
|
||
|
|
/// pointer arguments and length.
|
||
|
|
Value *emitStpNCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the __memcpy_chk function to the builder. This expects that
|
||
|
|
/// the Len and ObjSize have type 'intptr_t' and Dst/Src are pointers.
|
||
|
|
Value *emitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
|
||
|
|
IRBuilderBase &B, const DataLayout &DL,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the mempcpy function.
|
||
|
|
Value *emitMemPCpy(Value *Dst, Value *Src, Value *Len, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the memchr function. This assumes that Ptr is a pointer,
|
||
|
|
/// Val is an i32 value, and Len is an 'intptr_t' value.
|
||
|
|
Value *emitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the memcmp function.
|
||
|
|
Value *emitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the bcmp function.
|
||
|
|
Value *emitBCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the memccpy function.
|
||
|
|
Value *emitMemCCpy(Value *Ptr1, Value *Ptr2, Value *Val, Value *Len,
|
||
|
|
IRBuilderBase &B, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the snprintf function.
|
||
|
|
Value *emitSNPrintf(Value *Dest, Value *Size, Value *Fmt,
|
||
|
|
ArrayRef<Value *> Args, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the sprintf function.
|
||
|
|
Value *emitSPrintf(Value *Dest, Value *Fmt, ArrayRef<Value *> VariadicArgs,
|
||
|
|
IRBuilderBase &B, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strcat function.
|
||
|
|
Value *emitStrCat(Value *Dest, Value *Src, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strlcpy function.
|
||
|
|
Value *emitStrLCpy(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strlcat function.
|
||
|
|
Value *emitStrLCat(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the strncat function.
|
||
|
|
Value *emitStrNCat(Value *Dest, Value *Src, Value *Size, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the vsnprintf function.
|
||
|
|
Value *emitVSNPrintf(Value *Dest, Value *Size, Value *Fmt, Value *VAList,
|
||
|
|
IRBuilderBase &B, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the vsprintf function.
|
||
|
|
Value *emitVSPrintf(Value *Dest, Value *Fmt, Value *VAList, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the unary function named 'Name' (e.g. 'floor'). This
|
||
|
|
/// function is known to take a single of type matching 'Op' and returns one
|
||
|
|
/// value with the same type. If 'Op' is a long double, 'l' is added as the
|
||
|
|
/// suffix of name, if 'Op' is a float, we add a 'f' suffix.
|
||
|
|
Value *emitUnaryFloatFnCall(Value *Op, StringRef Name, IRBuilderBase &B,
|
||
|
|
const AttributeList &Attrs);
|
||
|
|
|
||
|
|
/// Emit a call to the unary function DoubleFn, FloatFn or LongDoubleFn,
|
||
|
|
/// depending of the type of Op.
|
||
|
|
Value *emitUnaryFloatFnCall(Value *Op, const TargetLibraryInfo *TLI,
|
||
|
|
LibFunc DoubleFn, LibFunc FloatFn,
|
||
|
|
LibFunc LongDoubleFn, IRBuilderBase &B,
|
||
|
|
const AttributeList &Attrs);
|
||
|
|
|
||
|
|
/// Emit a call to the binary function named 'Name' (e.g. 'fmin'). This
|
||
|
|
/// function is known to take type matching 'Op1' and 'Op2' and return one
|
||
|
|
/// value with the same type. If 'Op1/Op2' are long double, 'l' is added as
|
||
|
|
/// the suffix of name, if 'Op1/Op2' are float, we add a 'f' suffix.
|
||
|
|
Value *emitBinaryFloatFnCall(Value *Op1, Value *Op2, StringRef Name,
|
||
|
|
IRBuilderBase &B, const AttributeList &Attrs);
|
||
|
|
|
||
|
|
/// Emit a call to the binary function DoubleFn, FloatFn or LongDoubleFn,
|
||
|
|
/// depending of the type of Op1.
|
||
|
|
Value *emitBinaryFloatFnCall(Value *Op1, Value *Op2,
|
||
|
|
const TargetLibraryInfo *TLI, LibFunc DoubleFn,
|
||
|
|
LibFunc FloatFn, LibFunc LongDoubleFn,
|
||
|
|
IRBuilderBase &B, const AttributeList &Attrs);
|
||
|
|
|
||
|
|
/// Emit a call to the putchar function. This assumes that Char is an integer.
|
||
|
|
Value *emitPutChar(Value *Char, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the puts function. This assumes that Str is some pointer.
|
||
|
|
Value *emitPutS(Value *Str, IRBuilderBase &B, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the fputc function. This assumes that Char is an i32, and
|
||
|
|
/// File is a pointer to FILE.
|
||
|
|
Value *emitFPutC(Value *Char, Value *File, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the fputs function. Str is required to be a pointer and
|
||
|
|
/// File is a pointer to FILE.
|
||
|
|
Value *emitFPutS(Value *Str, Value *File, IRBuilderBase &B,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the fwrite function. This assumes that Ptr is a pointer,
|
||
|
|
/// Size is an 'intptr_t', and File is a pointer to FILE.
|
||
|
|
Value *emitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilderBase &B,
|
||
|
|
const DataLayout &DL, const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the malloc function.
|
||
|
|
Value *emitMalloc(Value *Num, IRBuilderBase &B, const DataLayout &DL,
|
||
|
|
const TargetLibraryInfo *TLI);
|
||
|
|
|
||
|
|
/// Emit a call to the calloc function.
|
||
|
|
Value *emitCalloc(Value *Num, Value *Size, const AttributeList &Attrs,
|
||
|
|
IRBuilderBase &B, const TargetLibraryInfo &TLI);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|