src/gallium/auxiliary/gallivm/lp_bld_misc.cpp

   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,
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
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  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  **************************************************************************/
  27
  28
  29 #ifndef __STDC_LIMIT_MACROS
  30 #define __STDC_LIMIT_MACROS
  31 #endif
  32
  33 #ifndef __STDC_CONSTANT_MACROS
  34 #define __STDC_CONSTANT_MACROS
  35 #endif
  36
  37 #include "llvm/Support/raw_ostream.h"
  38 #include "llvm-c/Core.h"
  39
  40 #include "util/u_debug.h"
  41
  42
  43 #if defined(PIPE_OS_WINDOWS) || defined(PIPE_OS_EMBDDED)
  44
  45 class raw_debug_ostream :
  46    public llvm::raw_ostream
  47 {
  48    uint64_t pos;
  49
  50    void write_impl(const char *Ptr, size_t Size);
  51    uint64_t current_pos() { return pos; }
  52    uint64_t current_pos() const { return pos; }
  53
  54 #if HAVE_LLVM >= 0x207
  55    uint64_t preferred_buffer_size() { return 512; }
  56 #else
  57    size_t preferred_buffer_size() { return 512; }
  58 #endif
  59 };
  60
  61
  62 void
  63 raw_debug_ostream::write_impl(const char *Ptr, size_t Size)
  64 {
  65    if (Size > 0) {
  66       char *lastPtr = (char *)&Ptr[Size];
  67       char last = *lastPtr;
  68       *lastPtr = 0;
  69       _debug_printf("%*s", Size, Ptr);
  70       *lastPtr = last;
  71       pos += Size;
  72    }
  73 }
  74
  75
  76 /**
  77  * Same as LLVMDumpValue, but through our debugging channels.
  78  */
  79 extern "C" void
  80 lp_debug_dump_value(LLVMValueRef value)
  81 {
  82    raw_debug_ostream os;
  83    llvm::unwrap(value)->print(os);
  84    os.flush();
  85 }
  86
  87
  88 #else
  89
  90
  91 extern "C" void
  92 lp_debug_dump_value(LLVMValueRef value)
  93 {
  94    LLVMDumpValue(value);
  95 }
  96
  97
  98 #endif