LLVM  3.7.0
BuildLibCalls.h
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1 //===- BuildLibCalls.h - Utility builder for libcalls -----------*- C++ -*-===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file exposes an interface to build some C language libcalls for
11 // optimization passes that need to call the various functions.
12 //
13 //===----------------------------------------------------------------------===//
14 
15 #ifndef LLVM_TRANSFORMS_UTILS_BUILDLIBCALLS_H
16 #define LLVM_TRANSFORMS_UTILS_BUILDLIBCALLS_H
17 
18 #include "llvm/IR/IRBuilder.h"
19 
20 namespace llvm {
21  class Value;
22  class DataLayout;
23  class TargetLibraryInfo;
24 
25  /// CastToCStr - Return V if it is an i8*, otherwise cast it to i8*.
26  Value *CastToCStr(Value *V, IRBuilder<> &B);
27 
28  /// EmitStrLen - Emit a call to the strlen function to the builder, for the
29  /// specified pointer. Ptr is required to be some pointer type, and the
30  /// return value has 'intptr_t' type.
31  Value *EmitStrLen(Value *Ptr, IRBuilder<> &B, const DataLayout &DL,
32  const TargetLibraryInfo *TLI);
33 
34  /// EmitStrNLen - Emit a call to the strnlen function to the builder, for the
35  /// specified pointer. Ptr is required to be some pointer type, MaxLen must
36  /// be of size_t type, and the return value has 'intptr_t' type.
37  Value *EmitStrNLen(Value *Ptr, Value *MaxLen, IRBuilder<> &B,
38  const DataLayout &DL, const TargetLibraryInfo *TLI);
39 
40  /// EmitStrChr - Emit a call to the strchr function to the builder, for the
41  /// specified pointer and character. Ptr is required to be some pointer type,
42  /// and the return value has 'i8*' type.
43  Value *EmitStrChr(Value *Ptr, char C, IRBuilder<> &B,
44  const TargetLibraryInfo *TLI);
45 
46  /// EmitStrNCmp - Emit a call to the strncmp function to the builder.
47  Value *EmitStrNCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
48  const DataLayout &DL, const TargetLibraryInfo *TLI);
49 
50  /// EmitStrCpy - Emit a call to the strcpy function to the builder, for the
51  /// specified pointer arguments.
52  Value *EmitStrCpy(Value *Dst, Value *Src, IRBuilder<> &B,
53  const TargetLibraryInfo *TLI, StringRef Name = "strcpy");
54 
55  /// EmitStrNCpy - Emit a call to the strncpy function to the builder, for the
56  /// specified pointer arguments and length.
57  Value *EmitStrNCpy(Value *Dst, Value *Src, Value *Len, IRBuilder<> &B,
58  const TargetLibraryInfo *TLI, StringRef Name = "strncpy");
59 
60  /// EmitMemCpyChk - Emit a call to the __memcpy_chk function to the builder.
61  /// This expects that the Len and ObjSize have type 'intptr_t' and Dst/Src
62  /// are pointers.
63  Value *EmitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize,
64  IRBuilder<> &B, const DataLayout &DL,
65  const TargetLibraryInfo *TLI);
66 
67  /// EmitMemChr - Emit a call to the memchr function. This assumes that Ptr is
68  /// a pointer, Val is an i32 value, and Len is an 'intptr_t' value.
69  Value *EmitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilder<> &B,
70  const DataLayout &DL, const TargetLibraryInfo *TLI);
71 
72  /// EmitMemCmp - Emit a call to the memcmp function.
73  Value *EmitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B,
74  const DataLayout &DL, const TargetLibraryInfo *TLI);
75 
76  /// EmitUnaryFloatFnCall - Emit a call to the unary function named 'Name'
77  /// (e.g. 'floor'). This function is known to take a single of type matching
78  /// 'Op' and returns one value with the same type. If 'Op' is a long double,
79  /// 'l' is added as the suffix of name, if 'Op' is a float, we add a 'f'
80  /// suffix.
81  Value *EmitUnaryFloatFnCall(Value *Op, StringRef Name, IRBuilder<> &B,
82  const AttributeSet &Attrs);
83 
84  /// EmitUnaryFloatFnCall - Emit a call to the binary function named 'Name'
85  /// (e.g. 'fmin'). This function is known to take type matching 'Op1' and
86  /// 'Op2' and return one value with the same type. If 'Op1/Op2' are long
87  /// double, 'l' is added as the suffix of name, if 'Op1/Op2' are float, we
88  /// add a 'f' suffix.
89  Value *EmitBinaryFloatFnCall(Value *Op1, Value *Op2, StringRef Name,
90  IRBuilder<> &B, const AttributeSet &Attrs);
91 
92  /// EmitPutChar - Emit a call to the putchar function. This assumes that Char
93  /// is an integer.
94  Value *EmitPutChar(Value *Char, IRBuilder<> &B, const TargetLibraryInfo *TLI);
95 
96  /// EmitPutS - Emit a call to the puts function. This assumes that Str is
97  /// some pointer.
98  Value *EmitPutS(Value *Str, IRBuilder<> &B, const TargetLibraryInfo *TLI);
99 
100  /// EmitFPutC - Emit a call to the fputc function. This assumes that Char is
101  /// an i32, and File is a pointer to FILE.
102  Value *EmitFPutC(Value *Char, Value *File, IRBuilder<> &B,
103  const TargetLibraryInfo *TLI);
104 
105  /// EmitFPutS - Emit a call to the puts function. Str is required to be a
106  /// pointer and File is a pointer to FILE.
107  Value *EmitFPutS(Value *Str, Value *File, IRBuilder<> &B,
108  const TargetLibraryInfo *TLI);
109 
110  /// EmitFWrite - Emit a call to the fwrite function. This assumes that Ptr is
111  /// a pointer, Size is an 'intptr_t', and File is a pointer to FILE.
112  Value *EmitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilder<> &B,
113  const DataLayout &DL, const TargetLibraryInfo *TLI);
114 }
115 
116 #endif
Value * EmitPutChar(Value *Char, IRBuilder<> &B, const TargetLibraryInfo *TLI)
EmitPutChar - Emit a call to the putchar function.
Value * EmitStrLen(Value *Ptr, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitStrLen - Emit a call to the strlen function to the builder, for the specified pointer...
Value * EmitFWrite(Value *Ptr, Value *Size, Value *File, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitFWrite - Emit a call to the fwrite function.
Value * EmitStrNLen(Value *Ptr, Value *MaxLen, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitStrNLen - Emit a call to the strnlen function to the builder, for the specified pointer...
Value * EmitUnaryFloatFnCall(Value *Op, StringRef Name, IRBuilder<> &B, const AttributeSet &Attrs)
EmitUnaryFloatFnCall - Emit a call to the unary function named 'Name' (e.g.
Value * EmitPutS(Value *Str, IRBuilder<> &B, const TargetLibraryInfo *TLI)
EmitPutS - Emit a call to the puts function.
Value * EmitFPutS(Value *Str, Value *File, IRBuilder<> &B, const TargetLibraryInfo *TLI)
EmitFPutS - Emit a call to the puts function.
Value * EmitMemCpyChk(Value *Dst, Value *Src, Value *Len, Value *ObjSize, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitMemCpyChk - Emit a call to the __memcpy_chk function to the builder.
Value * EmitStrCpy(Value *Dst, Value *Src, IRBuilder<> &B, const TargetLibraryInfo *TLI, StringRef Name="strcpy")
EmitStrCpy - Emit a call to the strcpy function to the builder, for the specified pointer arguments...
Value * EmitStrChr(Value *Ptr, char C, IRBuilder<> &B, const TargetLibraryInfo *TLI)
EmitStrChr - Emit a call to the strchr function to the builder, for the specified pointer and charact...
Value * EmitStrNCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitStrNCmp - Emit a call to the strncmp function to the builder.
Value * CastToCStr(Value *V, IRBuilder<> &B)
CastToCStr - Return V if it is an i8*, otherwise cast it to i8*.
Value * EmitFPutC(Value *Char, Value *File, IRBuilder<> &B, const TargetLibraryInfo *TLI)
EmitFPutC - Emit a call to the fputc function.
Value * EmitStrNCpy(Value *Dst, Value *Src, Value *Len, IRBuilder<> &B, const TargetLibraryInfo *TLI, StringRef Name="strncpy")
EmitStrNCpy - Emit a call to the strncpy function to the builder, for the specified pointer arguments...
Value * EmitMemCmp(Value *Ptr1, Value *Ptr2, Value *Len, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitMemCmp - Emit a call to the memcmp function.
Value * EmitMemChr(Value *Ptr, Value *Val, Value *Len, IRBuilder<> &B, const DataLayout &DL, const TargetLibraryInfo *TLI)
EmitMemChr - Emit a call to the memchr function.
C - The default llvm calling convention, compatible with C.
Definition: CallingConv.h:34
Value * EmitBinaryFloatFnCall(Value *Op1, Value *Op2, StringRef Name, IRBuilder<> &B, const AttributeSet &Attrs)
EmitUnaryFloatFnCall - Emit a call to the binary function named 'Name' (e.g.