Initial stab at LLVM integration.

2 files changed, 185 insertions, 0 deletions

diff --git a/src/mesa/pipe/llvm/llvmtgsi.cpp b/src/mesa/pipe/llvm/llvmtgsi.cpp
new file mode 100644
index 0000000000..857eb1cce1
--- /dev/null
+++ b/src/mesa/pipe/llvm/llvmtgsi.cpp
@@ -0,0 +1,158 @@
+#include "llvmtgsi.h"
+
+#include "pipe/tgsi/exec/tgsi_exec.h"
+#include "pipe/tgsi/exec/tgsi_token.h"
+#include "pipe/tgsi/exec/tgsi_build.h"
+#include "pipe/tgsi/exec/tgsi_util.h"
+#include "pipe/tgsi/exec/tgsi_parse.h"
+#include "pipe/tgsi/exec/tgsi_dump.h"
+//#include "pipe/tgsi/tgsi_platform.h"
+
+#include <llvm/Module.h>
+#include <llvm/CallingConv.h>
+#include <llvm/Constants.h>
+#include <llvm/DerivedTypes.h>
+#include <llvm/Instructions.h>
+#include <llvm/ModuleProvider.h>
+#include <llvm/ParameterAttributes.h>
+#include <llvm/Support/PatternMatch.h>
+#include <llvm/ExecutionEngine/JIT.h>
+#include <llvm/ExecutionEngine/Interpreter.h>
+#include <llvm/ExecutionEngine/GenericValue.h>
+#include <llvm/Support/MemoryBuffer.h>
+#include <llvm/Bitcode/ReaderWriter.h>
+#include <iostream>
+
+
+static void
+translate_declaration(llvm::Module *module,
+                      struct tgsi_full_declaration *decl,
+                      struct tgsi_full_declaration *fd)
+{
+}
+
+
+static void
+translate_immediate(llvm::Module *module,
+                    struct tgsi_full_immediate *imm)
+{
+}
+
+
+static void
+translate_instruction(llvm::Module *module,
+                      struct tgsi_full_instruction *inst,
+                      struct tgsi_full_instruction *fi)
+{
+}
+
+
+static llvm::Module *
+tgsi_to_llvm(const struct tgsi_token *tokens)
+{
+   llvm::Module *mod = new llvm::Module("tgsi");
+   struct tgsi_parse_context parse;
+   struct tgsi_full_instruction fi;
+   struct tgsi_full_declaration fd;
+
+   tgsi_parse_init(&parse, tokens);
+
+   //parse.FullHeader.Processor.Processor
+
+   //parse.FullVersion.Version.MajorVersion
+   //parse.FullVersion.Version.MinorVersion
+
+   //parse.FullHeader.Header.HeaderSize
+   //parse.FullHeader.Header.BodySize
+   //parse.FullHeader.Processor.Processor
+
+   fi = tgsi_default_full_instruction();
+   fd = tgsi_default_full_declaration();
+
+   while(!tgsi_parse_end_of_tokens(&parse)) {
+      tgsi_parse_token(&parse);
+
+      fprintf(stderr, "Translating %d\n", parse.FullToken.Token.Type);
+
+      switch (parse.FullToken.Token.Type) {
+      case TGSI_TOKEN_TYPE_DECLARATION:
+         translate_declaration(mod,
+                               &parse.FullToken.FullDeclaration,
+                               &fd);
+         break;
+
+      case TGSI_TOKEN_TYPE_IMMEDIATE:
+         translate_immediate(mod,
+                             &parse.FullToken.FullImmediate);
+         break;
+
+      case TGSI_TOKEN_TYPE_INSTRUCTION:
+         translate_instruction(mod,
+                               &parse.FullToken.FullInstruction,
+                               &fi);
+         break;
+
+      default:
+         assert(0);
+      }
+   }
+
+   //TXT("\ntgsi-dump end -------------------\n");
+
+   tgsi_parse_free(&parse);
+
+   return mod;
+}
+
+struct ga_llvm_prog *
+ga_llvm_from_tgsi(const struct tgsi_token *tokens)
+{
+   std::cout << "Creating llvm " <<std::endl;
+   struct ga_llvm_prog *ga_llvm =
+      (struct ga_llvm_prog *)malloc(sizeof(struct ga_llvm_prog));
+   llvm::Module *mod = tgsi_to_llvm(tokens);
+   llvm::ExistingModuleProvider *mp =
+      new llvm::ExistingModuleProvider(mod);
+   //llvm::ExecutionEngine *ee =
+   //   llvm::ExecutionEngine::create(mp, false);
+
+   ga_llvm->module = mod;
+   ga_llvm->engine = 0;//ee;
+   fprintf(stderr, "DUMPX \n");
+   //tgsi_dump(tokens, TGSI_DUMP_VERBOSE);
+   tgsi_dump(tokens, 0);
+   fprintf(stderr, "DUMPEND \n");
+
+   return ga_llvm;
+}
+
+void ga_llvm_prog_delete(struct ga_llvm_prog *prog)
+{
+   llvm::Module *mod = static_cast<llvm::Module*>(prog->module);
+   delete mod;
+   prog->module = 0;
+   prog->engine = 0;
+   free(prog);
+}
+
+int ga_llvm_prog_exec(struct ga_llvm_prog *prog)
+{
+   //std::cout << "START "<<std::endl;
+   llvm::Module *mod = static_cast<llvm::Module*>(prog->module);
+   llvm::Function *func = mod->getFunction("main");
+   llvm::ExecutionEngine *ee = static_cast<llvm::ExecutionEngine*>(prog->engine);
+
+   std::vector<llvm::GenericValue> args(0);
+   //args[0] = GenericValue(&st);
+   //std::cout << "Mod is "<<*mod;
+   //std::cout << "\n\nRunning llvm: " << std::endl;
+   if (func) {
+      std::cout << "Func is "<<func;
+      llvm::GenericValue gv = ee->runFunction(func, args);
+   }
+
+//delete ee;
+//delete mp;
+
+   return 0;
+}
diff --git a/src/mesa/pipe/llvm/llvmtgsi.h b/src/mesa/pipe/llvm/llvmtgsi.h
new file mode 100644
index 0000000000..c0cee915b9
--- /dev/null
+++ b/src/mesa/pipe/llvm/llvmtgsi.h
@@ -0,0 +1,27 @@
+#ifndef LLVMTGSI_H
+#define LLVMTGSI_H
+
+#if defined __cplusplus
+extern "C" {
+#endif
+
+struct tgsi_exec_machine;
+struct tgsi_token;
+struct tgsi_sampler;
+
+struct ga_llvm_prog {
+   void *module;
+   void *engine;
+};
+struct ga_llvm_prog *
+ga_llvm_from_tgsi(const struct tgsi_token *tokens);
+
+void ga_llvm_prog_delete(struct ga_llvm_prog *prog);
+
+int ga_llvm_prog_exec(struct ga_llvm_prog *prog);
+
+#if defined __cplusplus
+} // extern "C"
+#endif
+
+#endif