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, 22 insertions, 7 deletions

diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index 39d82f3289..73d5b6e403 100644
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -63,19 +63,32 @@ draw_get_option_use_llvm(void)
 }
 #endif
 
-struct draw_context *draw_create( struct pipe_context *pipe )
+
+
+/**
+ * Create new draw module context.
+ */
+struct draw_context *
+draw_create(struct pipe_context *pipe)
+{
+   return draw_create_gallivm(pipe, NULL);
+}
+
+
+
+/**
+ * Create new draw module context with gallivm state for LLVM JIT.
+ */
+struct draw_context *
+draw_create_gallivm(struct pipe_context *pipe, struct gallivm_state *gallivm)
 {
    struct draw_context *draw = CALLOC_STRUCT( draw_context );
    if (draw == NULL)
       goto fail;
 
 #if HAVE_LLVM
-   if(draw_get_option_use_llvm())
-   {
-      lp_build_init();
-      assert(lp_build_engine);
-      draw->engine = lp_build_engine;
-      draw->llvm = draw_llvm_create(draw);
+   if (draw_get_option_use_llvm() && gallivm) {
+      draw->llvm = draw_llvm_create(draw, gallivm);
    }
 #endif
 
@@ -91,6 +104,8 @@ fail:
    return NULL;
 }
 
+
+
 boolean draw_init(struct draw_context *draw)
 {
    /*