Support for MIPS in architecture independent files....

src/jump-target.cc

 // Copyright 2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 197 matching lines @@
 
 
 void JumpTarget::Jump(Result* arg) {
   ASSERT(cgen()->has_valid_frame());
 
   cgen()->frame()->Push(arg);
   DoJump();
 }
 
 
+#ifndef V8_TARGET_ARCH_MIPS
 void JumpTarget::Branch(Condition cc, Hint hint) {
   DoBranch(cc, hint);
 }
+#else
+void JumpTarget::Branch(Condition cc, Hint hint, Register src1, const Operand& src2) {
+  DoBranch(cc, hint, src1, src2);
+}
+#endif
 
 
 #ifdef DEBUG
 #define DECLARE_ARGCHECK_VARS(name)                                \
   Result::Type name##_type = name->type();                         \
   Register name##_reg = name->is_register() ? name->reg() : no_reg
 
 #define ASSERT_ARGCHECK(name)                                \
   ASSERT(name->type() == name##_type);                       \
   ASSERT(!name->is_register() || name->reg().is(name##_reg))
 
 #else
 #define DECLARE_ARGCHECK_VARS(name) do {} while (false)
 
 #define ASSERT_ARGCHECK(name) do {} while (false)
 #endif
 
+#ifndef V8_TARGET_ARCH_MIPS
 void JumpTarget::Branch(Condition cc, Result* arg, Hint hint) {
   ASSERT(cgen()->has_valid_frame());
 
   // We want to check that non-frame registers at the call site stay in
   // the same registers on the fall-through branch.
   DECLARE_ARGCHECK_VARS(arg);
 
   cgen()->frame()->Push(arg);
   DoBranch(cc, hint);
   *arg = cgen()->frame()->Pop();
 
   ASSERT_ARGCHECK(arg);
 }
+#else
+void JumpTarget::Branch(Condition cc, Result* arg, Hint hint, Register src1, const Operand& src2) {
+  ASSERT(cgen()->has_valid_frame());
+
+  // We want to check that non-frame registers at the call site stay in
+  // the same registers on the fall-through branch.
+  DECLARE_ARGCHECK_VARS(arg);
+
+  cgen()->frame()->Push(arg);
+  DoBranch(cc, hint, src1, src2);
+  *arg = cgen()->frame()->Pop();
+
+  ASSERT_ARGCHECK(arg);
+}
+#endif
 
 
+#ifndef V8_TARGET_ARCH_MIPS
 void BreakTarget::Branch(Condition cc, Result* arg, Hint hint) {
   ASSERT(cgen()->has_valid_frame());
 
   int count = cgen()->frame()->height() - expected_height_;
   if (count > 0) {
     // We negate and branch here rather than using DoBranch's negate
     // and branch.  This gives us a hook to remove statement state
     // from the frame.
     JumpTarget fall_through;
     // Branch to fall through will not negate, because it is a
     // forward-only target.
     fall_through.Branch(NegateCondition(cc), NegateHint(hint));
     Jump(arg);  // May emit merge code here.
     fall_through.Bind();
   } else {
     DECLARE_ARGCHECK_VARS(arg);
     cgen()->frame()->Push(arg);
     DoBranch(cc, hint);
     *arg = cgen()->frame()->Pop();
     ASSERT_ARGCHECK(arg);
   }
 }
+#else
+void BreakTarget::Branch(Condition cc, Result* arg, Hint hint,
+    Register src1, const Operand& src2) {
+  ASSERT(cgen()->has_valid_frame());
+
+  int count = cgen()->frame()->height() - expected_height_;
+  if (count > 0) {
+    // We negate and branch here rather than using DoBranch's negate
+    // and branch.  This gives us a hook to remove statement state
+    // from the frame.
+    JumpTarget fall_through;
+    // Branch to fall through will not negate, because it is a
+    // forward-only target.
+    fall_through.Branch(NegateCondition(cc), NegateHint(hint), src1, src2);
+    Jump(arg);  // May emit merge code here.
+    fall_through.Bind();
+  } else {
+    DECLARE_ARGCHECK_VARS(arg);
+    cgen()->frame()->Push(arg);
+    DoBranch(cc, hint, src1, src2);
+    *arg = cgen()->frame()->Pop();
+    ASSERT_ARGCHECK(arg);
+  }
+}
+#endif
 
 #undef DECLARE_ARGCHECK_VARS
 #undef ASSERT_ARGCHECK
 
 
 void JumpTarget::Bind() {
   DoBind();
 }
 
 
@@ skipping 31 matching lines @@
   destination->reaching_frames_.Rewind(0);
   destination->reaching_frames_.AddAll(reaching_frames_);
   destination->merge_labels_.Rewind(0);
   destination->merge_labels_.AddAll(merge_labels_);
   destination->entry_frame_ = entry_frame_;
   destination->entry_label_ = entry_label_;
   destination->expected_height_ = expected_height_;
 }
 
 
+#ifndef V8_TARGET_ARCH_MIPS
 void BreakTarget::Branch(Condition cc, Hint hint) {
   ASSERT(cgen()->has_valid_frame());
 
   int count = cgen()->frame()->height() - expected_height_;
   if (count > 0) {
     // We negate and branch here rather than using DoBranch's negate
     // and branch.  This gives us a hook to remove statement state
     // from the frame.
     JumpTarget fall_through;
     // Branch to fall through will not negate, because it is a
     // forward-only target.
     fall_through.Branch(NegateCondition(cc), NegateHint(hint));
     Jump();  // May emit merge code here.
     fall_through.Bind();
   } else {
     DoBranch(cc, hint);
   }
 }
+#else
+void BreakTarget::Branch(Condition cc, Hint hint, Register src1, const Operand& src2) {
+  ASSERT(cgen()->has_valid_frame());
+
+  int count = cgen()->frame()->height() - expected_height_;
+  if (count > 0) {
+    // We negate and branch here rather than using DoBranch's negate
+    // and branch.  This gives us a hook to remove statement state
+    // from the frame.
+    JumpTarget fall_through;
+    // Branch to fall through will not negate, because it is a
+    // forward-only target.
+    fall_through.Branch(NegateCondition(cc), NegateHint(hint), src1, src2);
+    Jump();  // May emit merge code here.
+    fall_through.Bind();
+  } else {
+    DoBranch(cc, hint, src1, src2);
+  }
+}
+#endif
 
 
 // -------------------------------------------------------------------------
 // ShadowTarget implementation.
 
 ShadowTarget::ShadowTarget(BreakTarget* shadowed) {
   ASSERT(shadowed != NULL);
   other_target_ = shadowed;
 
 #ifdef DEBUG
@@ skipping 20 matching lines @@
   temp.CopyTo(this);
   temp.Unuse();
 
 #ifdef DEBUG
   is_shadowing_ = false;
 #endif
 }
 
 
 } }  // namespace v8::internal