Mesa (master): gallivm: Move the global LLVM objects (module, engine, provider, target) into here.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 306835cc0fbdd7bf46b8c703f6659d1431f86ff9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=306835cc0fbdd7bf46b8c703f6659d1431f86ff9

Author: José Fonseca <jfonseca at vmware.com>
Date:   Tue Apr  6 22:37:08 2010 +0100

gallivm: Move the global LLVM objects (module, engine, provider, target) into here.

---

 src/gallium/auxiliary/Makefile                     |    4 +-
 src/gallium/auxiliary/SConscript                   |    2 +-
 .../gallivm/{lp_bld_init.cpp => lp_bld_init.c}     |   47 ++++++++++++--------
 src/gallium/auxiliary/gallivm/lp_bld_init.h        |   16 +++---
 src/gallium/drivers/llvmpipe/lp_jit.c              |   17 ++-----
 5 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/src/gallium/auxiliary/Makefile b/src/gallium/auxiliary/Makefile
index 2258a48..5beda92 100644
--- a/src/gallium/auxiliary/Makefile
+++ b/src/gallium/auxiliary/Makefile
@@ -152,6 +152,7 @@ GALLIVM_SOURCES = \
         gallivm/lp_bld_depth.c \
         gallivm/lp_bld_flow.c \
         gallivm/lp_bld_format_soa.c \
+        gallivm/lp_bld_init.c \
         gallivm/lp_bld_interp.c \
         gallivm/lp_bld_intr.c \
         gallivm/lp_bld_logic.c \
@@ -164,8 +165,7 @@ GALLIVM_SOURCES = \
         gallivm/lp_bld_tgsi_soa.c \
         gallivm/lp_bld_type.c
 
-GALLIVM_CPP_SOURCES = \
-        gallivm/lp_bld_init.cpp
+GALLIVM_CPP_SOURCES =
 
 GENERATED_SOURCES = \
 	indices/u_indices_gen.c \
diff --git a/src/gallium/auxiliary/SConscript b/src/gallium/auxiliary/SConscript
index e68b321..ae749ac 100644
--- a/src/gallium/auxiliary/SConscript
+++ b/src/gallium/auxiliary/SConscript
@@ -204,7 +204,7 @@ if drawllvm:
     'gallivm/lp_bld_interp.c',
     'gallivm/lp_bld_intr.c',
     'gallivm/lp_bld_logic.c',
-    'gallivm/lp_bld_init.cpp',
+    'gallivm/lp_bld_init.c',
     'gallivm/lp_bld_pack.c',
     'gallivm/lp_bld_printf.c',
     'gallivm/lp_bld_sample.c',
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.cpp b/src/gallium/auxiliary/gallivm/lp_bld_init.c
similarity index 67%
rename from src/gallium/auxiliary/gallivm/lp_bld_init.cpp
rename to src/gallium/auxiliary/gallivm/lp_bld_init.c
index 067397a..de07c22 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.cpp
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.c
@@ -26,33 +26,42 @@
  **************************************************************************/
 
 
-#include <llvm/Config/config.h>
-#include <llvm/Target/TargetSelect.h>
-#include <llvm/Target/TargetOptions.h>
-
-#include "pipe/p_config.h"
-
+#include "pipe/p_compiler.h"
+#include "util/u_debug.h"
 #include "lp_bld_init.h"
 
 
-extern "C" void LLVMLinkInJIT();
+LLVMModuleRef lp_build_module = NULL;
+LLVMExecutionEngineRef lp_build_engine = NULL;
+LLVMModuleProviderRef lp_build_provider = NULL;
+LLVMTargetDataRef lp_build_target = NULL;
 
 
-extern "C" void
+void
 lp_build_init(void)
 {
-#if defined(PIPE_OS_WINDOWS) && defined(PIPE_ARCH_X86)
-   /*
-    * This is mis-detected on some hardware / software combinations.
-    */
-   llvm::StackAlignment = 4;
-   llvm::RealignStack = true;
-#endif
-
-   /* Same as LLVMInitializeNativeTarget(); */
-   llvm::InitializeNativeTarget();
+   LLVMInitializeNativeTarget();
 
    LLVMLinkInJIT();
+
+   if (!lp_build_module)
+      lp_build_module = LLVMModuleCreateWithName("gallivm");
+
+   if (!lp_build_provider)
+      lp_build_provider = LLVMCreateModuleProviderForExistingModule(lp_build_module);
+
+   if (!lp_build_engine) {
+      char *error = NULL;
+
+      if (LLVMCreateJITCompiler(&lp_build_engine, lp_build_provider, 1, &error)) {
+         _debug_printf("%s\n", error);
+         LLVMDisposeMessage(error);
+         assert(0);
+      }
+   }
+
+   if (!lp_build_target)
+      lp_build_target = LLVMGetExecutionEngineTargetData(lp_build_engine);
 }
 
 
@@ -64,6 +73,6 @@ lp_build_init(void)
  */
 #if defined(_MSC_VER) && defined(_DEBUG)
 #include <crtdefs.h>
-extern "C" _CRTIMP void __cdecl
+_CRTIMP void __cdecl
 _invalid_parameter_noinfo(void) {}
 #endif
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.h b/src/gallium/auxiliary/gallivm/lp_bld_init.h
index 07f50d1..0ec2afc 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.h
@@ -30,18 +30,18 @@
 #define LP_BLD_INIT_H
 
 
-#ifdef __cplusplus
-extern "C" {
-#endif
+#include "lp_bld.h"
+#include <llvm-c/ExecutionEngine.h>
 
 
-void
-lp_build_init(void);
+extern LLVMModuleRef lp_build_module;
+extern LLVMExecutionEngineRef lp_build_engine;
+extern LLVMModuleProviderRef lp_build_provider;
+extern LLVMTargetDataRef lp_build_target;
 
 
-#ifdef __cplusplus
-}
-#endif
+void
+lp_build_init(void);
 
 
 #endif /* !LP_BLD_INIT_H */
diff --git a/src/gallium/drivers/llvmpipe/lp_jit.c b/src/gallium/drivers/llvmpipe/lp_jit.c
index 927e472..2f804bb 100644
--- a/src/gallium/drivers/llvmpipe/lp_jit.c
+++ b/src/gallium/drivers/llvmpipe/lp_jit.c
@@ -166,8 +166,6 @@ lp_jit_screen_cleanup(struct llvmpipe_screen *screen)
 void
 lp_jit_screen_init(struct llvmpipe_screen *screen)
 {
-   char *error = NULL;
-
    util_cpu_detect();
 
 #if 0
@@ -179,17 +177,10 @@ lp_jit_screen_init(struct llvmpipe_screen *screen)
 
    lp_build_init();
 
-   screen->module = LLVMModuleCreateWithName("llvmpipe");
-
-   screen->provider = LLVMCreateModuleProviderForExistingModule(screen->module);
-
-   if (LLVMCreateJITCompiler(&screen->engine, screen->provider, 1, &error)) {
-      _debug_printf("%s\n", error);
-      LLVMDisposeMessage(error);
-      assert(0);
-   }
-
-   screen->target = LLVMGetExecutionEngineTargetData(screen->engine);
+   screen->module = lp_build_module;
+   screen->provider = lp_build_provider;
+   screen->engine = lp_build_engine;
+   screen->target = lp_build_target;
 
    screen->pass = LLVMCreateFunctionPassManager(screen->provider);
    LLVMAddTargetData(screen->target, screen->pass);