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//===- BuildLibCalls.h - Utility builder for libcalls -----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file exposes an interface to build some C language libcalls for
// optimization passes that need to call the various functions.
//
//===----------------------------------------------------------------------===//
#ifndef TRANSFORMS_UTILS_BUILDLIBCALLS_H
#define TRANSFORMS_UTILS_BUILDLIBCALLS_H
#include "llvm/Support/IRBuilder.h"
namespace llvm {
class Value;
class TargetData;
/// CastToCStr - Return V if it is an i8*, otherwise cast it to i8*.
Value *CastToCStr(Value *V, IRBuilder<> &B);
/// EmitStrLen - 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, IRBuilder<> &B, const TargetData *TD);
/// EmitStrChr - 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, IRBuilder<> &B, const TargetData *TD);
/// EmitStrCpy - Emit a call to the strcpy function to the builder, for the
/// specified pointer arguments.
Value *EmitStrCpy(Value *Dst, Value *Src, IRBuilder<> &B,
const TargetData *TD);
/// EmitMemCpy - Emit a call to the memcpy function to the builder. This
/// always expects that the size has type 'intptr_t' and Dst/Src are pointers.
Value *EmitMemCpy(Value *Dst, Value *Src, Value *Len,
unsigned Align, IRBuilder<> &B, const TargetData *TD);
/// EmitMemMove - Emit a call to the memmove function to the builder. This
/// always expects that the size has type 'intptr_t' and Dst/Src are pointers.
Value *EmitMemMove(Value *Dst, Value *Src, Value *Len,
unsigned Align, IRBuilder<> &B, const TargetData *TD);
/// EmitMemChr - 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, IRBuilder<> &B,
const TargetData *TD);
/// EmitMemCmp - Emit a call to the memcmp function.
Value *EmitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
const TargetData *TD);
/// EmitMemSet - Emit a call to the memset function
Value *EmitMemSet(Value *Dst, Value *Val, Value *Len, IRBuilder<> &B,
const TargetData *TD);
/// EmitUnaryFloatFnCall - 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, const char *Name, IRBuilder<> &B,
const AttrListPtr &Attrs);
/// EmitPutChar - Emit a call to the putchar function. This assumes that Char
/// is an integer.
Value *EmitPutChar(Value *Char, IRBuilder<> &B, const TargetData *TD);
/// EmitPutS - Emit a call to the puts function. This assumes that Str is
/// some pointer.
void EmitPutS(Value *Str, IRBuilder<> &B, const TargetData *TD);
/// EmitFPutC - Emit a call to the fputc function. This assumes that Char is
/// an i32, and File is a pointer to FILE.
void EmitFPutC(Value *Char, Value *File, IRBuilder<> &B,
const TargetData *TD);
/// EmitFPutS - Emit a call to the puts function. Str is required to be a
/// pointer and File is a pointer to FILE.
void EmitFPutS(Value *Str, Value *File, IRBuilder<> &B, const TargetData *TD);
/// EmitFWrite - 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.
void EmitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilder<> &B,
const TargetData *TD);
}
#endif
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