src/gallium/auxiliary/gallivm/lp_bld_init.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 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 #include "pipe/p_compiler.h"
  30 #include "util/u_cpu_detect.h"
  31 #include "util/u_debug.h"
  32 #include "lp_bld_debug.h"
  33 #include "lp_bld_init.h"
  34
  35
  36 #ifdef DEBUG
  37 unsigned gallivm_debug = 0;
  38
  39 static const struct debug_named_value lp_bld_debug_flags[] = {
  40    { "tgsi",   GALLIVM_DEBUG_TGSI },
  41    { "ir",     GALLIVM_DEBUG_IR },
  42    { "asm",    GALLIVM_DEBUG_ASM },
  43    { "nopt",   GALLIVM_DEBUG_NO_OPT },
  44    {NULL, 0}
  45 };
  46 #endif
  47
  48
  49 LLVMModuleRef lp_build_module = NULL;
  50 LLVMExecutionEngineRef lp_build_engine = NULL;
  51 LLVMModuleProviderRef lp_build_provider = NULL;
  52 LLVMTargetDataRef lp_build_target = NULL;
  53
  54
  55 void
  56 lp_build_init(void)
  57 {
  58 #ifdef DEBUG
  59    gallivm_debug = debug_get_flags_option("GALLIVM_DEBUG", lp_bld_debug_flags, 0 );
  60 #endif
  61
  62    LLVMInitializeNativeTarget();
  63
  64    LLVMLinkInJIT();
  65
  66    if (!lp_build_module)
  67       lp_build_module = LLVMModuleCreateWithName("gallivm");
  68
  69    if (!lp_build_provider)
  70       lp_build_provider = LLVMCreateModuleProviderForExistingModule(lp_build_module);
  71
  72    if (!lp_build_engine) {
  73       char *error = NULL;
  74
  75       if (LLVMCreateJITCompiler(&lp_build_engine, lp_build_provider, 1, &error)) {
  76          _debug_printf("%s\n", error);
  77          LLVMDisposeMessage(error);
  78          assert(0);
  79       }
  80    }
  81
  82    if (!lp_build_target)
  83       lp_build_target = LLVMGetExecutionEngineTargetData(lp_build_engine);
  84
  85    util_cpu_detect();
  86
  87 #if 0
  88    /* For simulating less capable machines */
  89    util_cpu_caps.has_sse3 = 0;
  90    util_cpu_caps.has_ssse3 = 0;
  91    util_cpu_caps.has_sse4_1 = 0;
  92 #endif
  93 }
  94
  95
  96 /*
  97  * Hack to allow the linking of release LLVM static libraries on a debug build.
  98  *
  99  * See also:
 100  * - http://social.msdn.microsoft.com/Forums/en-US/vclanguage/thread/7234ea2b-0042-42ed-b4e2-5d8644dfb57d
 101  */
 102 #if defined(_MSC_VER) && defined(_DEBUG)
 103 #include <crtdefs.h>
 104 _CRTIMP void __cdecl
 105 _invalid_parameter_noinfo(void) {}
 106 #endif