gallivm/llvmpipe: squash merge of the llvm-context branch

This branch defines a gallivm_state structure which contains the
LLVMBuilderRef, LLVMContextRef, etc.  All data structures built with
this object can be periodically freed during a "garbage collection"
operation.

The gallivm_state object has to be passed to most of the builder
functions where LLVMBuilderRef used to be used.

Conflicts:
	src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
	src/gallium/drivers/llvmpipe/lp_state_setup.c

1 files changed, 34 insertions, 5 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_init.h b/src/gallium/auxiliary/gallivm/lp_bld_init.h
index 0b4b1ca7d1..f68bf75a85 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_init.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_init.h
@@ -30,24 +30,53 @@
 #define LP_BLD_INIT_H
 
 
+#include "pipe/p_compiler.h"
 #include "lp_bld.h"
 #include <llvm-c/ExecutionEngine.h>
 
 
-extern LLVMModuleRef lp_build_module;
-extern LLVMExecutionEngineRef lp_build_engine;
-extern LLVMModuleProviderRef lp_build_provider;
-extern LLVMTargetDataRef lp_build_target;
-extern LLVMPassManagerRef lp_build_pass;
+struct gallivm_state
+{
+   LLVMModuleRef module;
+   LLVMExecutionEngineRef engine;
+   LLVMModuleProviderRef provider;
+   LLVMTargetDataRef target;
+   LLVMPassManagerRef passmgr;
+   LLVMContextRef context;
+   LLVMBuilderRef builder;
+};
 
 
 void
 lp_build_init(void);
 
+
 extern void
 lp_func_delete_body(LLVMValueRef func);
 
 
+void
+gallivm_garbage_collect(struct gallivm_state *gallivm);
+
+
+typedef void (*garbage_collect_callback_func)(void *cb_data);
+
+void
+gallivm_register_garbage_collector_callback(garbage_collect_callback_func func,
+                                            void *cb_data);
+
+void
+gallivm_remove_garbage_collector_callback(garbage_collect_callback_func func,
+                                          void *cb_data);
+
+
+struct gallivm_state *
+gallivm_create(void);
+
+void
+gallivm_destroy(struct gallivm_state *gallivm);
+
+
 extern LLVMValueRef
 lp_build_load_volatile(LLVMBuilderRef B, LLVMValueRef PointerVal,
                        const char *Name);