JIT hackery. Not quite working.

src/alloy/compiler/compiler_passes.h

@@ -14,7 +14,6 @@
 #include <alloy/compiler/passes/context_promotion_pass.h>
 #include <alloy/compiler/passes/dead_code_elimination_pass.h>
 #include <alloy/compiler/passes/finalization_pass.h>
-#include <alloy/compiler/passes/register_allocation_pass.h>
 //#include <alloy/compiler/passes/dead_store_elimination_pass.h>
 #include <alloy/compiler/passes/simplification_pass.h>
 

src/alloy/compiler/passes/finalization_pass.cc

@@ -49,7 +49,15 @@ int FinalizationPass::Run(HIRBuilder* builder) {
       label = label->next;
     }
 
-    // ?
+    // ? remove useless jumps?
+
+    // Renumber all instructions to make liveness tracking easier.
+    uint32_t n = 0;
+    auto instr = block->instr_head;
+    while (instr) {
+      instr->ordinal = n++;
+      instr = instr->next;
+    }
 
     block = block->next;
   }

src/alloy/compiler/passes/register_allocation_pass.cc

@@ -1,51 +0,0 @@
-/**
- ******************************************************************************
- * Xenia : Xbox 360 Emulator Research Project                                 *
- ******************************************************************************
- * Copyright 2014 Ben Vanik. All rights reserved.                             *
- * Released under the BSD license - see LICENSE in the root for more details. *
- ******************************************************************************
- */
-
-#include <alloy/compiler/passes/register_allocation_pass.h>
-
-#include <alloy/backend/backend.h>
-#include <alloy/compiler/compiler.h>
-#include <alloy/runtime/runtime.h>
-
-using namespace alloy;
-using namespace alloy::backend;
-using namespace alloy::compiler;
-using namespace alloy::compiler::passes;
-using namespace alloy::frontend;
-using namespace alloy::hir;
-using namespace alloy::runtime;
-
-
-RegisterAllocationPass::RegisterAllocationPass(Backend* backend) :
-    CompilerPass() {
-  // TODO(benvanik): query backend info (register layout, etc).
-}
-
-RegisterAllocationPass::~RegisterAllocationPass() {
-}
-
-int RegisterAllocationPass::Run(HIRBuilder* builder) {
-  // Run through each block and give each dest value a register.
-  // This pass is currently really dumb, and will over spill and other badness.
-
-  auto block = builder->first_block();
-  while (block) {
-    if (ProcessBlock(block)) {
-      return 1;
-    }
-    block = block->next;
-  }
-
-  return 0;
-}
-
-int RegisterAllocationPass::ProcessBlock(Block* block) {
-  //
-  return 0;
-}

src/alloy/compiler/passes/register_allocation_pass.h

@@ -1,40 +0,0 @@
-/**
- ******************************************************************************
- * Xenia : Xbox 360 Emulator Research Project                                 *
- ******************************************************************************
- * Copyright 2014 Ben Vanik. All rights reserved.                             *
- * Released under the BSD license - see LICENSE in the root for more details. *
- ******************************************************************************
- */
-
-#ifndef ALLOY_COMPILER_PASSES_REGISTER_ALLOCATION_PASS_H_
-#define ALLOY_COMPILER_PASSES_REGISTER_ALLOCATION_PASS_H_
-
-#include <alloy/compiler/compiler_pass.h>
-
-XEDECLARECLASS2(alloy, backend, Backend);
-
-
-namespace alloy {
-namespace compiler {
-namespace passes {
-
-
-class RegisterAllocationPass : public CompilerPass {
-public:
-  RegisterAllocationPass(backend::Backend* backend);
-  virtual ~RegisterAllocationPass();
-
-  virtual int Run(hir::HIRBuilder* builder);
-
-private:
-  int ProcessBlock(hir::Block* block);
-};
-
-
-}  // namespace passes
-}  // namespace compiler
-}  // namespace alloy
-
-
-#endif  // ALLOY_COMPILER_PASSES_REGISTER_ALLOCATION_PASS_H_

src/alloy/compiler/passes/sources.gypi

@@ -9,8 +9,6 @@
     'dead_code_elimination_pass.h',
     'finalization_pass.cc',
     'finalization_pass.h',
-    'register_allocation_pass.cc',
-    'register_allocation_pass.h',
     #'dead_store_elimination_pass.cc',
     #'dead_store_elimination_pass.h',
     'simplification_pass.cc',