2012-02-09 09:43:37 +00:00
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// Copyright 2012 the V8 project authors. All rights reserved.
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2008-07-03 15:10:15 +00:00
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef V8_MACRO_ASSEMBLER_H_
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#define V8_MACRO_ASSEMBLER_H_
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2009-09-07 12:07:40 +00:00
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// Helper types to make boolean flag easier to read at call-site.
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enum InvokeFlag {
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CALL_FUNCTION,
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JUMP_FUNCTION
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};
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2012-12-28 11:09:16 +00:00
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// Flags used for the AllocateInNewSpace functions.
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enum AllocationFlags {
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// No special flags.
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NO_ALLOCATION_FLAGS = 0,
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// Return the pointer to the allocated already tagged as a heap object.
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TAG_OBJECT = 1 << 0,
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// The content of the result register already contains the allocation top in
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// new space.
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RESULT_CONTAINS_TOP = 1 << 1,
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// Specify that the requested size of the space to allocate is specified in
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// words instead of bytes.
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SIZE_IN_WORDS = 1 << 2,
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// Align the allocation to a multiple of kDoubleSize
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2013-03-14 08:32:52 +00:00
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DOUBLE_ALIGNMENT = 1 << 3,
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// Directly allocate in old pointer space
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2013-04-15 11:52:34 +00:00
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PRETENURE_OLD_POINTER_SPACE = 1 << 4,
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// Directly allocate in old data space
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PRETENURE_OLD_DATA_SPACE = 1 << 5
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2012-12-28 11:09:16 +00:00
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};
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2010-02-09 16:14:14 +00:00
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// Invalid depth in prototype chain.
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const int kInvalidProtoDepth = -1;
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2009-09-07 12:07:40 +00:00
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2009-05-05 12:06:20 +00:00
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#if V8_TARGET_ARCH_IA32
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2008-07-03 15:10:15 +00:00
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#include "assembler.h"
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2009-05-05 12:06:20 +00:00
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#include "ia32/assembler-ia32.h"
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#include "ia32/assembler-ia32-inl.h"
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2008-07-03 15:10:15 +00:00
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#include "code.h" // must be after assembler_*.h
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2009-05-05 12:06:20 +00:00
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#include "ia32/macro-assembler-ia32.h"
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#elif V8_TARGET_ARCH_X64
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2009-04-29 13:11:48 +00:00
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#include "assembler.h"
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#include "x64/assembler-x64.h"
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#include "x64/assembler-x64-inl.h"
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#include "code.h" // must be after assembler_*.h
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#include "x64/macro-assembler-x64.h"
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2014-02-12 09:19:30 +00:00
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#elif V8_TARGET_ARCH_A64
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#include "a64/constants-a64.h"
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#include "assembler.h"
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#include "a64/assembler-a64.h"
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#include "a64/assembler-a64-inl.h"
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#include "code.h" // must be after assembler_*.h
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#include "a64/macro-assembler-a64.h"
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#include "a64/macro-assembler-a64-inl.h"
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2009-05-05 12:06:20 +00:00
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#elif V8_TARGET_ARCH_ARM
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#include "arm/constants-arm.h"
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2008-07-03 15:10:15 +00:00
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#include "assembler.h"
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2009-05-05 12:06:20 +00:00
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#include "arm/assembler-arm.h"
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#include "arm/assembler-arm-inl.h"
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2008-07-03 15:10:15 +00:00
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#include "code.h" // must be after assembler_*.h
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2009-05-05 12:06:20 +00:00
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#include "arm/macro-assembler-arm.h"
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2010-02-04 20:36:58 +00:00
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#elif V8_TARGET_ARCH_MIPS
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#include "mips/constants-mips.h"
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#include "assembler.h"
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#include "mips/assembler-mips.h"
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#include "mips/assembler-mips-inl.h"
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#include "code.h" // must be after assembler_*.h
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#include "mips/macro-assembler-mips.h"
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2009-06-29 17:07:30 +00:00
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#else
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#error Unsupported target architecture.
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2008-07-03 15:10:15 +00:00
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#endif
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2010-08-30 11:48:07 +00:00
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namespace v8 {
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namespace internal {
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2011-09-15 11:30:45 +00:00
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class FrameScope {
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public:
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explicit FrameScope(MacroAssembler* masm, StackFrame::Type type)
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: masm_(masm), type_(type), old_has_frame_(masm->has_frame()) {
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2011-09-15 11:30:45 +00:00
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masm->set_has_frame(true);
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if (type != StackFrame::MANUAL && type_ != StackFrame::NONE) {
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masm->EnterFrame(type);
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}
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}
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~FrameScope() {
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if (type_ != StackFrame::MANUAL && type_ != StackFrame::NONE) {
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masm_->LeaveFrame(type_);
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}
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2011-09-15 19:24:04 +00:00
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masm_->set_has_frame(old_has_frame_);
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2011-09-15 11:30:45 +00:00
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}
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// Normally we generate the leave-frame code when this object goes
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// out of scope. Sometimes we may need to generate the code somewhere else
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// in addition. Calling this will achieve that, but the object stays in
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// scope, the MacroAssembler is still marked as being in a frame scope, and
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// the code will be generated again when it goes out of scope.
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void GenerateLeaveFrame() {
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2014-03-12 15:56:16 +00:00
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ASSERT(type_ != StackFrame::MANUAL && type_ != StackFrame::NONE);
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2011-09-15 11:30:45 +00:00
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masm_->LeaveFrame(type_);
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}
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private:
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MacroAssembler* masm_;
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StackFrame::Type type_;
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2011-09-15 19:24:04 +00:00
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bool old_has_frame_;
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2011-09-15 11:30:45 +00:00
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};
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class AllowExternalCallThatCantCauseGC: public FrameScope {
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public:
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explicit AllowExternalCallThatCantCauseGC(MacroAssembler* masm)
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: FrameScope(masm, StackFrame::NONE) { }
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};
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class NoCurrentFrameScope {
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public:
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explicit NoCurrentFrameScope(MacroAssembler* masm)
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: masm_(masm), saved_(masm->has_frame()) {
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masm->set_has_frame(false);
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}
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~NoCurrentFrameScope() {
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masm_->set_has_frame(saved_);
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}
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private:
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MacroAssembler* masm_;
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bool saved_;
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};
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2010-08-30 11:48:07 +00:00
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// Support for "structured" code comments.
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#ifdef DEBUG
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class Comment {
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public:
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Comment(MacroAssembler* masm, const char* msg);
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~Comment();
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private:
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MacroAssembler* masm_;
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const char* msg_;
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};
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#else
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class Comment {
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public:
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Comment(MacroAssembler*, const char*) {}
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};
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#endif // DEBUG
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2013-03-14 08:32:52 +00:00
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class AllocationUtils {
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public:
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static ExternalReference GetAllocationTopReference(
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Isolate* isolate, AllocationFlags flags) {
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2013-04-15 11:52:34 +00:00
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if ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) {
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return ExternalReference::old_pointer_space_allocation_top_address(
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isolate);
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} else if ((flags & PRETENURE_OLD_DATA_SPACE) != 0) {
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return ExternalReference::old_data_space_allocation_top_address(isolate);
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}
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return ExternalReference::new_space_allocation_top_address(isolate);
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2013-03-14 08:32:52 +00:00
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}
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static ExternalReference GetAllocationLimitReference(
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Isolate* isolate, AllocationFlags flags) {
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2013-04-15 11:52:34 +00:00
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if ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) {
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return ExternalReference::old_pointer_space_allocation_limit_address(
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isolate);
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} else if ((flags & PRETENURE_OLD_DATA_SPACE) != 0) {
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return ExternalReference::old_data_space_allocation_limit_address(
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isolate);
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}
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return ExternalReference::new_space_allocation_limit_address(isolate);
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2013-03-14 08:32:52 +00:00
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}
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};
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2010-08-30 11:48:07 +00:00
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} } // namespace v8::internal
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2008-07-03 15:10:15 +00:00
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#endif // V8_MACRO_ASSEMBLER_H_
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