1 files changed, 140 insertions, 0 deletions
diff --git a/src/amd/vulkan/radv_llvm_helper.cpp b/src/amd/vulkan/radv_llvm_helper.cpp
new file mode 100644
index 00000000000..ed05e1197ec
--- /dev/null
+++ b/src/amd/vulkan/radv_llvm_helper.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2018 Red Hat.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include "ac_llvm_util.h"
+#include "ac_llvm_build.h"
+#include "radv_shader_helper.h"
+
+#include <list>
+class radv_llvm_per_thread_info {
+public:
+	radv_llvm_per_thread_info(enum radeon_family arg_family,
+				enum ac_target_machine_options arg_tm_options)
+		: family(arg_family), tm_options(arg_tm_options) {}
+
+	~radv_llvm_per_thread_info()
+	{
+		ac_destroy_llvm_passes(passes);
+		ac_destroy_llvm_compiler(&llvm_info);
+	}
+
+	bool init(void)
+	{
+		if (!ac_init_llvm_compiler(&llvm_info,
+					  true,
+					  family,
+					  tm_options))
+			return false;
+
+		passes = ac_create_llvm_passes(llvm_info.tm);
+		if (!passes)
+			return false;
+
+		return true;
+	}
+
+	bool compile_to_memory_buffer(LLVMModuleRef module,
+				      struct ac_shader_binary *binary)
+	{
+		return ac_compile_module_to_binary(passes, module, binary);
+	}
+
+	bool is_same(enum radeon_family arg_family,
+		     enum ac_target_machine_options arg_tm_options) {
+		if (arg_family == family &&
+		    arg_tm_options == tm_options)
+			return true;
+		return false;
+	}
+	struct ac_llvm_compiler llvm_info;
+private:
+	enum radeon_family family;
+	enum ac_target_machine_options tm_options;
+	struct ac_compiler_passes *passes;
+};
+
+/* we have to store a linked list per thread due to the possiblity of multiple gpus being required */
+static thread_local std::list<radv_llvm_per_thread_info> radv_llvm_per_thread_list;
+
+bool radv_compile_to_binary(struct ac_llvm_compiler *info,
+			    LLVMModuleRef module,
+			    struct ac_shader_binary *binary)
+{
+	radv_llvm_per_thread_info *thread_info = nullptr;
+
+	for (auto &I : radv_llvm_per_thread_list) {
+		if (I.llvm_info.tm == info->tm) {
+			thread_info = &I;
+			break;
+		}
+	}
+
+	if (!thread_info) {
+		struct ac_compiler_passes *passes = ac_create_llvm_passes(info->tm);
+		bool ret = ac_compile_module_to_binary(passes, module, binary);
+		ac_destroy_llvm_passes(passes);
+		return ret;
+	}
+
+	return thread_info->compile_to_memory_buffer(module, binary);
+}
+
+bool radv_init_llvm_compiler(struct ac_llvm_compiler *info,
+			     bool okay_to_leak_target_library_info,
+			     bool thread_compiler,
+			     enum radeon_family family,
+			     enum ac_target_machine_options tm_options)
+{
+	if (thread_compiler) {
+		for (auto &I : radv_llvm_per_thread_list) {
+			if (I.is_same(family, tm_options)) {
+				*info = I.llvm_info;
+				return true;
+			}
+		}
+
+		radv_llvm_per_thread_list.emplace_back(family, tm_options);
+		radv_llvm_per_thread_info &tinfo = radv_llvm_per_thread_list.back();
+
+		if (!tinfo.init()) {
+			radv_llvm_per_thread_list.pop_back();
+			return false;
+		}
+
+		*info = tinfo.llvm_info;
+		return true;
+	}
+
+	if (!ac_init_llvm_compiler(info,
+				   okay_to_leak_target_library_info,
+				   family,
+				   tm_options))
+		return false;
+	return true;
+}
+
+void radv_destroy_llvm_compiler(struct ac_llvm_compiler *info,
+				bool thread_compiler)
+{
+	if (!thread_compiler)
+		ac_destroy_llvm_compiler(info);
+}