src/gallium/auxiliary/gallivm/lp_bld_struct.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
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   7  * copy of this software and associated documentation files (the
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  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
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  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * @file
  30  * Helper functions for type conversions.
  31  *
  32  * @author Jose Fonseca <jfonseca@vmware.com>
  33  */
  34
  35
  36 #ifndef LP_BLD_STRUCT_H
  37 #define LP_BLD_STRUCT_H
  38
  39
  40 #include "gallivm/lp_bld.h"
  41 #include <llvm-c/Target.h>
  42
  43 #include "util/u_debug.h"
  44 #include "util/u_memory.h"
  45
  46
  47 #define LP_CHECK_STRUCT_SIZE(_ctype, _ltarget, _ltype) \
  48       assert(LLVMABISizeOfType(_ltarget, _ltype) == \
  49              sizeof(_ctype))
  50
  51 #define LP_CHECK_MEMBER_OFFSET(_ctype, _cmember, _ltarget, _ltype, _lindex) \
  52       assert(LLVMOffsetOfElement(_ltarget, _ltype, _lindex) == \
  53              offsetof(_ctype, _cmember))
  54
  55
  56 /**
  57  * Get value pointer to a structure member.
  58  */
  59 LLVMValueRef
  60 lp_build_struct_get_ptr(LLVMBuilderRef builder,
  61                         LLVMValueRef ptr,
  62                         unsigned member,
  63                         const char *name);
  64
  65 /**
  66  * Get the value of a structure member.
  67  */
  68 LLVMValueRef
  69 lp_build_struct_get(LLVMBuilderRef builder,
  70                     LLVMValueRef ptr,
  71                     unsigned member,
  72                     const char *name);
  73
  74
  75 #endif /* !LP_BLD_STRUCT_H */