Upstream version 7.36.149.0

[platform/framework/web/crosswalk.git] / src / v8 / src / arm64 / macro-assembler-arm64-inl.h

diff --git a/src/v8/src/arm64/macro-assembler-arm64-inl.h b/src/v8/src/arm64/macro-assembler-arm64-inl.h
index d660d36..f828679 100644 (file)
--- a/src/v8/src/arm64/macro-assembler-arm64-inl.h
+++ b/src/v8/src/arm64/macro-assembler-arm64-inl.h
@@ -1,29 +1,6 @@
 // Copyright 2013 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
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
 #ifndef V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_
 #define V8_ARM64_MACRO_ASSEMBLER_ARM64_INL_H_
@@ -319,13 +296,6 @@ LS_MACRO_LIST(DEFINE_FUNCTION)
 #undef DEFINE_FUNCTION
 
 
-void MacroAssembler::Adr(const Register& rd, Label* label) {
-  ASSERT(allow_macro_instructions_);
-  ASSERT(!rd.IsZero());
-  adr(rd, label);
-}
-
-
 void MacroAssembler::Asr(const Register& rd,
                          const Register& rn,
                          unsigned shift) {
@@ -833,6 +803,12 @@ void MacroAssembler::Frinta(const FPRegister& fd, const FPRegister& fn) {
 }
 
 
+void MacroAssembler::Frintm(const FPRegister& fd, const FPRegister& fn) {
+  ASSERT(allow_macro_instructions_);
+  frintm(fd, fn);
+}
+
+
 void MacroAssembler::Frintn(const FPRegister& fd, const FPRegister& fn) {
   ASSERT(allow_macro_instructions_);
   frintn(fd, fn);
@@ -1409,6 +1385,30 @@ void MacroAssembler::JumpIfBothNotSmi(Register value1,
 }
 
 
+void MacroAssembler::ObjectTag(Register tagged_obj, Register obj) {
+  STATIC_ASSERT(kHeapObjectTag == 1);
+  if (emit_debug_code()) {
+    Label ok;
+    Tbz(obj, 0, &ok);
+    Abort(kObjectTagged);
+    Bind(&ok);
+  }
+  Orr(tagged_obj, obj, kHeapObjectTag);
+}
+
+
+void MacroAssembler::ObjectUntag(Register untagged_obj, Register obj) {
+  STATIC_ASSERT(kHeapObjectTag == 1);
+  if (emit_debug_code()) {
+    Label ok;
+    Tbnz(obj, 0, &ok);
+    Abort(kObjectNotTagged);
+    Bind(&ok);
+  }
+  Bic(untagged_obj, obj, kHeapObjectTag);
+}
+
+
 void MacroAssembler::IsObjectNameType(Register object,
                                       Register type,
                                       Label* fail) {
@@ -1489,12 +1489,9 @@ void MacroAssembler::Claim(uint64_t count, uint64_t unit_size) {
 
 
 void MacroAssembler::Claim(const Register& count, uint64_t unit_size) {
+  if (unit_size == 0) return;
   ASSERT(IsPowerOf2(unit_size));
 
-  if (unit_size == 0) {
-    return;
-  }
-
   const int shift = CountTrailingZeros(unit_size, kXRegSizeInBits);
   const Operand size(count, LSL, shift);
 
@@ -1511,7 +1508,7 @@ void MacroAssembler::Claim(const Register& count, uint64_t unit_size) {
 
 
 void MacroAssembler::ClaimBySMI(const Register& count_smi, uint64_t unit_size) {
-  ASSERT(IsPowerOf2(unit_size));
+  ASSERT(unit_size == 0 || IsPowerOf2(unit_size));
   const int shift = CountTrailingZeros(unit_size, kXRegSizeInBits) - kSmiShift;
   const Operand size(count_smi,
                      (shift >= 0) ? (LSL) : (LSR),
@@ -1550,12 +1547,9 @@ void MacroAssembler::Drop(uint64_t count, uint64_t unit_size) {
 
 
 void MacroAssembler::Drop(const Register& count, uint64_t unit_size) {
+  if (unit_size == 0) return;
   ASSERT(IsPowerOf2(unit_size));
 
-  if (unit_size == 0) {
-    return;
-  }
-
   const int shift = CountTrailingZeros(unit_size, kXRegSizeInBits);
   const Operand size(count, LSL, shift);
 
@@ -1575,7 +1569,7 @@ void MacroAssembler::Drop(const Register& count, uint64_t unit_size) {
 
 
 void MacroAssembler::DropBySMI(const Register& count_smi, uint64_t unit_size) {
-  ASSERT(IsPowerOf2(unit_size));
+  ASSERT(unit_size == 0 || IsPowerOf2(unit_size));
   const int shift = CountTrailingZeros(unit_size, kXRegSizeInBits) - kSmiShift;
   const Operand size(count_smi,
                      (shift >= 0) ? (LSL) : (LSR),