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1 /**************************************************************************
2  *
3  * Copyright 2010 VMware, Inc.
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
27 
28 /**
29  * @file
30  * Wrapper for LLVM header file #includes.
31  */
32 
33 
34 #ifndef LP_BLD_H
35 #define LP_BLD_H
36 
37 
38 /**
39  * @file
40  * LLVM IR building helpers interfaces.
41  *
42  * We use LLVM-C bindings for now. They are not documented, but follow the C++
43  * interfaces very closely, and appear to be complete enough for code
44  * genration. See
45  * http://npcontemplation.blogspot.com/2008/06/secret-of-llvm-c-bindings.html
46  * for a standalone example.
47  */
48 
49 #include <llvm-c/Core.h>
50 
51 
52 /** Ensure HAVE_LLVM is set to avoid #ifdef HAVE_LLVM everywhere */
53 #ifndef HAVE_LLVM
54 #error "HAVE_LLVM should be set with LLVM's version number, e.g. (0x0207 for 2.7)"
55 #endif
56 #if HAVE_LLVM < 0x303
57 #error "LLVM 3.3 or newer required"
58 #endif
59 
60 
61 #if HAVE_LLVM <= 0x0303
62 /* We won't actually use LLVMMCJITMemoryManagerRef, just create a dummy
63  * typedef to simplify things elsewhere.
64  */
65 typedef void *LLVMMCJITMemoryManagerRef;
66 #endif
67 
68 
69 /**
70  * Redefine these LLVM entrypoints as invalid macros to make sure we
71  * don't accidentally use them.  We need to use the functions which
72  * take an explicit LLVMContextRef parameter.
73  */
74 #define LLVMInt1Type ILLEGAL_LLVM_FUNCTION
75 #define LLVMInt8Type ILLEGAL_LLVM_FUNCTION
76 #define LLVMInt16Type ILLEGAL_LLVM_FUNCTION
77 #define LLVMInt32Type ILLEGAL_LLVM_FUNCTION
78 #define LLVMInt64Type ILLEGAL_LLVM_FUNCTION
79 #define LLVMIntType ILLEGAL_LLVM_FUNCTION
80 #define LLVMFloatType ILLEGAL_LLVM_FUNCTION
81 #define LLVMDoubleType ILLEGAL_LLVM_FUNCTION
82 #define LLVMX86FP80Type ILLEGAL_LLVM_FUNCTION
83 #define LLVMFP128Type ILLEGAL_LLVM_FUNCTION
84 #define LLVMPPCFP128Type ILLEGAL_LLVM_FUNCTION
85 #define LLVMStructType ILLEGAL_LLVM_FUNCTION
86 #define LLVMVoidType ILLEGAL_LLVM_FUNCTION
87 #define LLVMLabelType ILLEGAL_LLVM_FUNCTION
88 #define LLVMOpaqueType ILLEGAL_LLVM_FUNCTION
89 #define LLVMUnionType ILLEGAL_LLVM_FUNCTION
90 #define LLVMMDString ILLEGAL_LLVM_FUNCTION
91 #define LLVMMDNode ILLEGAL_LLVM_FUNCTION
92 #define LLVMConstString ILLEGAL_LLVM_FUNCTION
93 #define LLVMConstStruct ILLEGAL_LLVM_FUNCTION
94 #define LLVMAppendBasicBlock ILLEGAL_LLVM_FUNCTION
95 #define LLVMInsertBasicBlock ILLEGAL_LLVM_FUNCTION
96 #define LLVMCreateBuilder ILLEGAL_LLVM_FUNCTION
97 
98 
99 /*
100  * Before LLVM 3.4 LLVMSetAlignment only supported GlobalValue, not
101  * LoadInst/StoreInst as we need.
102  */
103 #if HAVE_LLVM < 0x0304
104 #  ifdef __cplusplus
105       extern "C"
106 #  endif
107    void LLVMSetAlignmentBackport(LLVMValueRef V, unsigned Bytes);
108 #  define LLVMSetAlignment LLVMSetAlignmentBackport
109 #endif
110 
111 
112 #endif /* LP_BLD_H */
113