HIR->LIR flow.

src/alloy/backend/x64/lir/lir_block.h

@@ -0,0 +1,47 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef ALLOY_BACKEND_X64_LIR_LIR_BLOCK_H_
+#define ALLOY_BACKEND_X64_LIR_LIR_BLOCK_H_
+
+#include <alloy/core.h>
+
+
+namespace alloy {
+namespace backend {
+namespace x64 {
+namespace lir {
+
+class LIRBuilder;
+class LIRInstr;
+class LIRLabel;
+
+
+class LIRBlock {
+public:
+  Arena* arena;
+
+  LIRBlock* next;
+  LIRBlock* prev;
+
+  LIRLabel* label_head;
+  LIRLabel* label_tail;
+
+  LIRInstr* instr_head;
+  LIRInstr* instr_tail;
+};
+
+
+}  // namespace lir
+}  // namespace x64
+}  // namespace backend
+}  // namespace alloy
+
+
+#endif  // ALLOY_BACKEND_X64_LIR_LIR_BLOCK_H_

src/alloy/backend/x64/lir/lir_builder.cc

@@ -16,12 +16,20 @@ using namespace alloy::backend::x64::lir;
 
 LIRBuilder::LIRBuilder(X64Backend* backend) :
     backend_(backend) {
+  arena_ = new Arena();
+  Reset();
 }
 
 LIRBuilder::~LIRBuilder() {
+  Reset();
+  delete arena_;
 }
 
 void LIRBuilder::Reset() {
+  next_label_id_ = 0;
+  block_head_ = block_tail_ = NULL;
+  current_block_ = NULL;
+  arena_->Reset();
 }
 
 int LIRBuilder::Finalize() {
@@ -29,4 +37,140 @@ int LIRBuilder::Finalize() {
 }
 
 void LIRBuilder::Dump(StringBuffer* str) {
+  uint32_t block_ordinal = 0;
+  auto block = block_head_;
+  while (block) {
+    if (block == block_head_) {
+      str->Append("<entry>:\n");
+    } else if (!block->label_head) {
+      str->Append("<block%d>:\n", block_ordinal);
+    }
+    block_ordinal++;
+
+    auto label = block->label_head;
+    while (label) {
+      if (label->name) {
+        str->Append("%s:\n", label->name);
+      } else {
+        str->Append("label%d:\n", label->id);
+      }
+      label = label->next;
+    }
+
+    auto i = block->instr_head;
+    while (i) {
+      if (i->opcode->flags & LIR_OPCODE_FLAG_HIDE) {
+        i = i->next;
+        continue;
+      }
+
+      // TODO(benvanik): handle comment
+
+      const LIROpcodeInfo* info = i->opcode;
+      str->Append("  ");
+      if (i->flags) {
+        str->Append("%s.%d", info->name, i->flags);
+      } else {
+        str->Append("%s", info->name);
+      }
+      // TODO(benvanik): args based on signature
+      str->Append("\n");
+      i = i->next;
+    }
+
+    block = block->next;
+  }
+}
+
+LIRBlock* LIRBuilder::current_block() const {
+  return current_block_;
+}
+
+LIRInstr* LIRBuilder::last_instr() const {
+  if (current_block_ && current_block_->instr_tail) {
+    return current_block_->instr_tail;
+  } else if (block_tail_) {
+    return block_tail_->instr_tail;
+  }
+  return NULL;
+}
+
+LIRLabel* LIRBuilder::NewLabel() {
+  LIRLabel* label = arena_->Alloc<LIRLabel>();
+  label->next = label->prev = NULL;
+  label->block = NULL;
+  label->id = next_label_id_++;
+  label->name = NULL;
+  return label;
+}
+
+void LIRBuilder::MarkLabel(LIRLabel* label, LIRBlock* block) {
+  if (!block) {
+    if (current_block_ && current_block_->instr_tail) {
+      EndBlock();
+    }
+    if (!current_block_) {
+      AppendBlock();
+    }
+    block = current_block_;
+  }
+  label->block = block;
+  label->prev = block->label_tail;
+  label->next = NULL;
+  if (label->prev) {
+    label->prev->next = label;
+    block->label_tail = label;
+  } else {
+    block->label_head = block->label_tail = label;
+  }
+}
+
+LIRBlock* LIRBuilder::AppendBlock() {
+  LIRBlock* block = arena_->Alloc<LIRBlock>();
+  block->arena = arena_;
+  block->next = NULL;
+  block->prev = block_tail_;
+  if (block_tail_) {
+    block_tail_->next = block;
+  }
+  block_tail_ = block;
+  if (!block_head_) {
+    block_head_ = block;
+  }
+  current_block_ = block;
+  block->label_head = block->label_tail = NULL;
+  block->instr_head = block->instr_tail = NULL;
+  return block;
+}
+
+void LIRBuilder::EndBlock() {
+  if (current_block_ && !current_block_->instr_tail) {
+    // Block never had anything added to it. Since it likely has an
+    // incoming edge, just keep it around.
+    return;
+  }
+  current_block_ = NULL;
+}
+
+LIRInstr* LIRBuilder::AppendInstr(
+    const LIROpcodeInfo& opcode_info, uint16_t flags) {
+  if (!current_block_) {
+    AppendBlock();
+  }
+  LIRBlock* block = current_block_;
+
+  LIRInstr* instr = arena_->Alloc<LIRInstr>();
+  instr->next = NULL;
+  instr->prev = block->instr_tail;
+  if (block->instr_tail) {
+    block->instr_tail->next = instr;
+  }
+  block->instr_tail = instr;
+  if (!block->instr_head) {
+    block->instr_head = instr;
+  }
+  instr->block = block;
+  instr->opcode = &opcode_info;
+  instr->flags = flags;
+  return instr;
 }

src/alloy/backend/x64/lir/lir_builder.h

@@ -11,6 +11,9 @@
 #define ALLOY_BACKEND_X64_LIR_LIR_BUILDER_H_
 
 #include <alloy/core.h>
+#include <alloy/backend/x64/lir/lir_block.h>
+#include <alloy/backend/x64/lir/lir_instr.h>
+#include <alloy/backend/x64/lir/lir_label.h>
 #include <alloy/backend/x64/lir/lir_opcodes.h>
 
 
@@ -33,9 +36,28 @@ public:
 
   Arena* arena() const { return arena_; }
 
+  LIRBlock* first_block() const { return block_head_; }
+  LIRBlock* current_block() const;
+  LIRInstr* last_instr() const;
+
+  LIRLabel* NewLabel();
+  void MarkLabel(LIRLabel* label, LIRBlock* block = 0);
+
+  // TODO(benvanik): allocations
+
+  LIRBlock* AppendBlock();
+  void EndBlock();
+  LIRInstr* AppendInstr(const LIROpcodeInfo& opcode, uint16_t flags);
+
 protected:
   X64Backend* backend_;
   Arena*      arena_;
+
+  uint32_t    next_label_id_;
+
+  LIRBlock*   block_head_;
+  LIRBlock*   block_tail_;
+  LIRBlock*   current_block_;
 };
 
 

src/alloy/backend/x64/lir/lir_instr.h

@@ -11,17 +11,85 @@
 #define ALLOY_BACKEND_X64_LIR_LIR_INSTR_H_
 
 #include <alloy/core.h>
+#include <alloy/backend/x64/lir/lir_block.h>
+#include <alloy/backend/x64/lir/lir_label.h>
 #include <alloy/backend/x64/lir/lir_opcodes.h>
 
 
+namespace alloy { namespace runtime { class FunctionInfo; } }
+
+
 namespace alloy {
 namespace backend {
 namespace x64 {
 namespace lir {
 
 
+enum LIRRegister {
+  REG8, REG16, REG32, REG64, REGXMM,
+
+  AL,   AX,   EAX,  RAX,
+  BL,   BX,   EBX,  RBX,
+  CL,   CX,   ECX,  RCX,
+  DL,   DX,   EDX,  RDX,
+  R8B,  R8W,  R8D,   R8,
+  R9B,  R9W,  R9D,   R9,
+  R10B, R10W, R10D, R10,
+  R11B, R11W, R11D, R11,
+  R12B, R12W, R12D, R12,
+  R13B, R13W, R13D, R13,
+  R14B, R14W, R14D, R14,
+  R15B, R15W, R15D, R15,
+
+  SIL,  SI,   ESI,  RSI,
+  DIL,  DI,   EDI,  RDI,
+
+  RBP,
+  RSP,
+
+  XMM0,
+  XMM1,
+  XMM2,
+  XMM3,
+  XMM4,
+  XMM5,
+  XMM6,
+  XMM7,
+  XMM8,
+  XMM9,
+  XMM10,
+  XMM11,
+  XMM12,
+  XMM13,
+  XMM14,
+  XMM15,
+};
+
+
 class LIRInstr {
 public:
+  LIRBlock* block;
+  LIRInstr* next;
+  LIRInstr* prev;
+
+  const LIROpcodeInfo* opcode;
+  uint16_t flags;
+
+  typedef union {
+    runtime::FunctionInfo* symbol_info;
+    LIRLabel*   label;
+    LIRRegister reg;
+    int8_t      i8;
+    int16_t     i16;
+    int32_t     i32;
+    int64_t     i64;
+    float       f32;
+    double      f64;
+    uint64_t    offset;
+  } Op;
+
+  // TODO(benvanik): make this variable width?
+  Op arg[4];
 };
 
 

src/alloy/backend/x64/lir/lir_label.h

@@ -0,0 +1,43 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef ALLOY_BACKEND_X64_LIR_LIR_LABEL_H_
+#define ALLOY_BACKEND_X64_LIR_LIR_LABEL_H_
+
+#include <alloy/core.h>
+
+
+namespace alloy {
+namespace backend {
+namespace x64 {
+namespace lir {
+
+class LIRBlock;
+
+
+class LIRLabel {
+public:
+  LIRBlock* block;
+  LIRLabel* next;
+  LIRLabel* prev;
+
+  uint32_t  id;
+  char*     name;
+
+  void*     tag;
+};
+
+
+}  // namespace lir
+}  // namespace x64
+}  // namespace backend
+}  // namespace alloy
+
+
+#endif  // ALLOY_BACKEND_X64_LIR_LIR_LABEL_H_

src/alloy/backend/x64/lir/sources.gypi

@@ -1,9 +1,11 @@
 # Copyright 2013 Ben Vanik. All Rights Reserved.
 {
   'sources': [
+    'lir_block.h',
     'lir_builder.cc',
     'lir_builder.h',
     'lir_instr.h',
+    'lir_label.h',
     'lir_opcodes.cc',
     'lir_opcodes.h',
     'lir_opcodes.inl',

src/alloy/backend/x64/lowering/lowering_sequences.cc

@@ -395,46 +395,6 @@ public:
 #include <alloy/backend/x64/lowering/lowering_lir_opcodes.inl>
 }
 
-enum {
-  REG8, REG16, REG32, REG64, REGXMM,
-
-  AL,   AX,   EAX,  RAX,
-  BL,   BX,   EBX,  RBX,
-  CL,   CX,   ECX,  RCX,
-  DL,   DX,   EDX,  RDX,
-  R8B,  R8W,  R8D,   R8,
-  R9B,  R9W,  R9D,   R9,
-  R10B, R10W, R10D, R10,
-  R11B, R11W, R11D, R11,
-  R12B, R12W, R12D, R12,
-  R13B, R13W, R13D, R13,
-  R14B, R14W, R14D, R14,
-  R15B, R15W, R15D, R15,
-
-  SIL,  SI,   ESI,  RSI,
-  DIL,  DI,   EDI,  RDI,
-
-  RBP,
-  RSP,
-
-  XMM0,
-  XMM1,
-  XMM2,
-  XMM3,
-  XMM4,
-  XMM5,
-  XMM6,
-  XMM7,
-  XMM8,
-  XMM9,
-  XMM10,
-  XMM11,
-  XMM12,
-  XMM13,
-  XMM14,
-  XMM15,
-};
-
 
 void alloy::backend::x64::lowering::RegisterSequences(LoweringTable* table) {
   Translate<tuple<

src/alloy/backend/x64/lowering/lowering_table.cc

@@ -43,14 +43,60 @@ void LoweringTable::AddSequence(hir::Opcode starting_opcode, FnWrapper* fn) {
   lookup_[starting_opcode] = fn;
 }
 
-int LoweringTable::Process(lir::LIRBuilder* builder) {
-  /*LIRInstr* instr = 0;
-  auto fn = lookup_[instr->opcode->num];
-  while (fn) {
-    if ((*fn)(builder, instr)) {
-      return true;
+int LoweringTable::Process(
+    hir::HIRBuilder* hir_builder, lir::LIRBuilder* lir_builder) {
+  lir_builder->EndBlock();
+
+  // Translate all labels ahead of time.
+  // We stash them on tags to make things easier later on.
+  auto hir_block = hir_builder->first_block();
+  while (hir_block) {
+    auto hir_label = hir_block->label_head;
+    while (hir_label) {
+      // TODO(benvanik): copy name to LIR label.
+      hir_label->tag = lir_builder->NewLabel();
+      hir_label = hir_label->next;
     }
-    fn = fn->next;
-  }*/
+    hir_block = hir_block->next;
+  }
+
+  // Process each block.
+  hir_block = hir_builder->first_block();
+  while (hir_block) {
+    // Force a new block.
+    lir_builder->AppendBlock();
+
+    // Mark labels.
+    auto hir_label = hir_block->label_head;
+    while (hir_label) {
+      auto lir_label = (lir::LIRLabel*)hir_label->tag;
+      lir_builder->MarkLabel(lir_label);
+      hir_label = hir_label->next;
+    }
+
+    // Process instructions.
+    auto hir_instr = hir_block->instr_head;
+    while (hir_instr) {
+      bool processed = false;
+      auto fn = lookup_[hir_instr->opcode->num];
+      while (fn) {
+        if ((*fn)(lir_builder, hir_instr)) {
+          processed = true;
+          break;
+        }
+        fn = fn->next;
+      }
+      if (!processed) {
+        // No sequence found!
+        XELOGE("Unable to process HIR opcode %s", hir_instr->opcode->name);
+        return 1;
+        hir_instr = hir_instr->next;
+      }
+    }
+
+    lir_builder->EndBlock();
+    hir_block = hir_block->next;
+  }
+
   return 0;
 }

src/alloy/backend/x64/lowering/lowering_table.h

@@ -11,15 +11,15 @@
 #define ALLOY_BACKEND_X64_X64_LOWERING_LOWERING_TABLE_H_
 
 #include <alloy/core.h>
+#include <alloy/backend/x64/lir/lir_builder.h>
 #include <alloy/backend/x64/lir/lir_instr.h>
-#include <alloy/hir/instr.h>
+#include <alloy/hir/hir_builder.h>
 
 
 namespace alloy {
 namespace backend {
 namespace x64 {
 class X64Backend;
-namespace lir { class LIRBuilder; }
 namespace lowering {
 
 
@@ -30,7 +30,7 @@ public:
 
   int Initialize();
 
-  int Process(lir::LIRBuilder* builder);
+  int Process(hir::HIRBuilder* hir_builder, lir::LIRBuilder* lir_builder);
 
 public:
   class FnWrapper {

src/alloy/backend/x64/x64_assembler.cc

@@ -75,7 +75,7 @@ int X64Assembler::Assemble(
 
   // Lower HIR -> LIR.
   auto lowering_table = x64_backend_->lowering_table();
-  result = lowering_table->Process(builder_);
+  result = lowering_table->Process(hir_builder, builder_);
   XEEXPECTZERO(result);
 
   // Stash raw LIR.
@@ -98,6 +98,15 @@ int X64Assembler::Assemble(
 
   // Emit machine code.
   // TODO(benvanik): machine code.
+  //result = emitter_->Emit(builder_, &machine_code, &length);
+  XEEXPECTZERO(result);
+
+  // Stash generated machine code.
+  if (debug_info) {
+    //emitter_->Dump(&string_buffer_);
+    debug_info->set_machine_code_disasm(string_buffer_.ToString());
+    string_buffer_.Reset();
+  }
 
   X64Function* fn = new X64Function(symbol_info);
   fn->set_debug_info(debug_info);

src/alloy/frontend/ppc/ppc_translator.cc

@@ -46,6 +46,7 @@ PPCTranslator::PPCTranslator(PPCFrontend* frontend) :
 
   Backend* backend = frontend->runtime()->backend();
   assembler_ = backend->CreateAssembler();
+  assembler_->Initialize();
 }
 
 PPCTranslator::~PPCTranslator() {