<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title>[179372] trunk/Source/JavaScriptCore</title>
</head>
<body>
<style type="text/css"><!--
#msg dl.meta { border: 1px #006 solid; background: #369; padding: 6px; color: #fff; }
#msg dl.meta dt { float: left; width: 6em; font-weight: bold; }
#msg dt:after { content:':';}
#msg dl, #msg dt, #msg ul, #msg li, #header, #footer, #logmsg { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; }
#msg dl a { font-weight: bold}
#msg dl a:link { color:#fc3; }
#msg dl a:active { color:#ff0; }
#msg dl a:visited { color:#cc6; }
h3 { font-family: verdana,arial,helvetica,sans-serif; font-size: 10pt; font-weight: bold; }
#msg pre { overflow: auto; background: #ffc; border: 1px #fa0 solid; padding: 6px; }
#logmsg { background: #ffc; border: 1px #fa0 solid; padding: 1em 1em 0 1em; }
#logmsg p, #logmsg pre, #logmsg blockquote { margin: 0 0 1em 0; }
#logmsg p, #logmsg li, #logmsg dt, #logmsg dd { line-height: 14pt; }
#logmsg h1, #logmsg h2, #logmsg h3, #logmsg h4, #logmsg h5, #logmsg h6 { margin: .5em 0; }
#logmsg h1:first-child, #logmsg h2:first-child, #logmsg h3:first-child, #logmsg h4:first-child, #logmsg h5:first-child, #logmsg h6:first-child { margin-top: 0; }
#logmsg ul, #logmsg ol { padding: 0; list-style-position: inside; margin: 0 0 0 1em; }
#logmsg ul { text-indent: -1em; padding-left: 1em; }#logmsg ol { text-indent: -1.5em; padding-left: 1.5em; }
#logmsg > ul, #logmsg > ol { margin: 0 0 1em 0; }
#logmsg pre { background: #eee; padding: 1em; }
#logmsg blockquote { border: 1px solid #fa0; border-left-width: 10px; padding: 1em 1em 0 1em; background: white;}
#logmsg dl { margin: 0; }
#logmsg dt { font-weight: bold; }
#logmsg dd { margin: 0; padding: 0 0 0.5em 0; }
#logmsg dd:before { content:'\00bb';}
#logmsg table { border-spacing: 0px; border-collapse: collapse; border-top: 4px solid #fa0; border-bottom: 1px solid #fa0; background: #fff; }
#logmsg table th { text-align: left; font-weight: normal; padding: 0.2em 0.5em; border-top: 1px dotted #fa0; }
#logmsg table td { text-align: right; border-top: 1px dotted #fa0; padding: 0.2em 0.5em; }
#logmsg table thead th { text-align: center; border-bottom: 1px solid #fa0; }
#logmsg table th.Corner { text-align: left; }
#logmsg hr { border: none 0; border-top: 2px dashed #fa0; height: 1px; }
#header, #footer { color: #fff; background: #636; border: 1px #300 solid; padding: 6px; }
#patch { width: 100%; }
#patch h4 {font-family: verdana,arial,helvetica,sans-serif;font-size:10pt;padding:8px;background:#369;color:#fff;margin:0;}
#patch .propset h4, #patch .binary h4 {margin:0;}
#patch pre {padding:0;line-height:1.2em;margin:0;}
#patch .diff {width:100%;background:#eee;padding: 0 0 10px 0;overflow:auto;}
#patch .propset .diff, #patch .binary .diff {padding:10px 0;}
#patch span {display:block;padding:0 10px;}
#patch .modfile, #patch .addfile, #patch .delfile, #patch .propset, #patch .binary, #patch .copfile {border:1px solid #ccc;margin:10px 0;}
#patch ins {background:#dfd;text-decoration:none;display:block;padding:0 10px;}
#patch del {background:#fdd;text-decoration:none;display:block;padding:0 10px;}
#patch .lines, .info {color:#888;background:#fff;}
--></style>
<div id="msg">
<dl class="meta">
<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/179372">179372</a></dd>
<dt>Author</dt> <dd>ggaren@apple.com</dd>
<dt>Date</dt> <dd>2015-01-29 15:17:18 -0800 (Thu, 29 Jan 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Removed op_ret_object_or_this
https://bugs.webkit.org/show_bug.cgi?id=141048
Reviewed by Michael Saboff.
op_ret_object_or_this was one opcode that would keep us out of the
optimizing compilers.
We don't need a special-purpose opcode; we can just use a branch.
* bytecode/BytecodeBasicBlock.cpp:
(JSC::isTerminal): Removed.
* bytecode/BytecodeList.json:
* bytecode/BytecodeUseDef.h:
(JSC::computeUsesForBytecodeOffset):
(JSC::computeDefsForBytecodeOffset): Removed.
* bytecode/CodeBlock.cpp:
(JSC::CodeBlock::dumpBytecode): Removed.
* bytecompiler/BytecodeGenerator.cpp:
(JSC::BytecodeGenerator::emitReturn): Use an explicit branch to determine
if we need to substitute 'this' for the return value. Our engine no longer
benefits from fused opcodes that dispatch less in the interpreter.
* jit/JIT.cpp:
(JSC::JIT::privateCompileMainPass):
* jit/JIT.h:
* jit/JITCall32_64.cpp:
(JSC::JIT::emit_op_ret_object_or_this): Deleted.
* jit/JITOpcodes.cpp:
(JSC::JIT::emit_op_ret_object_or_this): Deleted.
* llint/LowLevelInterpreter32_64.asm:
* llint/LowLevelInterpreter64.asm: Removed.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceJavaScriptCoreChangeLog">trunk/Source/JavaScriptCore/ChangeLog</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeBytecodeBasicBlockcpp">trunk/Source/JavaScriptCore/bytecode/BytecodeBasicBlock.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeBytecodeListjson">trunk/Source/JavaScriptCore/bytecode/BytecodeList.json</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeBytecodeUseDefh">trunk/Source/JavaScriptCore/bytecode/BytecodeUseDef.h</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecodeCodeBlockcpp">trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorebytecompilerBytecodeGeneratorcpp">trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITcpp">trunk/Source/JavaScriptCore/jit/JIT.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITh">trunk/Source/JavaScriptCore/jit/JIT.h</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITCall32_64cpp">trunk/Source/JavaScriptCore/jit/JITCall32_64.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorejitJITOpcodescpp">trunk/Source/JavaScriptCore/jit/JITOpcodes.cpp</a></li>
<li><a href="#trunkSourceJavaScriptCorellintLowLevelInterpreter32_64asm">trunk/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm</a></li>
<li><a href="#trunkSourceJavaScriptCorellintLowLevelInterpreter64asm">trunk/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceJavaScriptCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/ChangeLog (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/ChangeLog 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/ChangeLog 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -1,3 +1,40 @@
</span><ins>+2015-01-29 Geoffrey Garen <ggaren@apple.com>
+
+ Removed op_ret_object_or_this
+ https://bugs.webkit.org/show_bug.cgi?id=141048
+
+ Reviewed by Michael Saboff.
+
+ op_ret_object_or_this was one opcode that would keep us out of the
+ optimizing compilers.
+
+ We don't need a special-purpose opcode; we can just use a branch.
+
+ * bytecode/BytecodeBasicBlock.cpp:
+ (JSC::isTerminal): Removed.
+ * bytecode/BytecodeList.json:
+ * bytecode/BytecodeUseDef.h:
+ (JSC::computeUsesForBytecodeOffset):
+ (JSC::computeDefsForBytecodeOffset): Removed.
+
+ * bytecode/CodeBlock.cpp:
+ (JSC::CodeBlock::dumpBytecode): Removed.
+
+ * bytecompiler/BytecodeGenerator.cpp:
+ (JSC::BytecodeGenerator::emitReturn): Use an explicit branch to determine
+ if we need to substitute 'this' for the return value. Our engine no longer
+ benefits from fused opcodes that dispatch less in the interpreter.
+
+ * jit/JIT.cpp:
+ (JSC::JIT::privateCompileMainPass):
+ * jit/JIT.h:
+ * jit/JITCall32_64.cpp:
+ (JSC::JIT::emit_op_ret_object_or_this): Deleted.
+ * jit/JITOpcodes.cpp:
+ (JSC::JIT::emit_op_ret_object_or_this): Deleted.
+ * llint/LowLevelInterpreter32_64.asm:
+ * llint/LowLevelInterpreter64.asm: Removed.
+
</ins><span class="cx"> 2015-01-29 Ryosuke Niwa <rniwa@webkit.org>
</span><span class="cx">
</span><span class="cx"> Implement ES6 class syntax without inheritance support
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeBytecodeBasicBlockcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/BytecodeBasicBlock.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/BytecodeBasicBlock.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/bytecode/BytecodeBasicBlock.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -73,7 +73,6 @@
</span><span class="cx"> {
</span><span class="cx"> switch (opcodeID) {
</span><span class="cx"> case op_ret:
</span><del>- case op_ret_object_or_this:
</del><span class="cx"> case op_end:
</span><span class="cx"> return true;
</span><span class="cx"> default:
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeBytecodeListjson"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/BytecodeList.json (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/BytecodeList.json 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/bytecode/BytecodeList.json 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -100,7 +100,6 @@
</span><span class="cx"> { "name" : "op_call_varargs", "length" : 9 },
</span><span class="cx"> { "name" : "op_tear_off_arguments", "length" : 3 },
</span><span class="cx"> { "name" : "op_ret", "length" : 2 },
</span><del>- { "name" : "op_ret_object_or_this", "length" : 3 },
</del><span class="cx"> { "name" : "op_construct", "length" : 9 },
</span><span class="cx"> { "name" : "op_construct_varargs", "length" : 9 },
</span><span class="cx"> { "name" : "op_strcat", "length" : 4 },
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeBytecodeUseDefh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/BytecodeUseDef.h (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/BytecodeUseDef.h 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/bytecode/BytecodeUseDef.h 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -75,7 +75,6 @@
</span><span class="cx"> }
</span><span class="cx"> case op_create_arguments:
</span><span class="cx"> case op_new_func:
</span><del>- case op_ret_object_or_this:
</del><span class="cx"> case op_jlesseq:
</span><span class="cx"> case op_jgreater:
</span><span class="cx"> case op_jgreatereq:
</span><span class="lines">@@ -253,7 +252,6 @@
</span><span class="cx"> case op_throw_static_error:
</span><span class="cx"> case op_debug:
</span><span class="cx"> case op_ret:
</span><del>- case op_ret_object_or_this:
</del><span class="cx"> case op_jmp:
</span><span class="cx"> case op_jtrue:
</span><span class="cx"> case op_jfalse:
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecodeCodeBlockcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/bytecode/CodeBlock.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -1332,13 +1332,6 @@
</span><span class="cx"> printLocationOpAndRegisterOperand(out, exec, location, it, "ret", r0);
</span><span class="cx"> break;
</span><span class="cx"> }
</span><del>- case op_ret_object_or_this: {
- int r0 = (++it)->u.operand;
- int r1 = (++it)->u.operand;
- printLocationAndOp(out, exec, location, it, "constructor_ret");
- out.printf("%s %s", registerName(r0).data(), registerName(r1).data());
- break;
- }
</del><span class="cx"> case op_construct: {
</span><span class="cx"> printCallOp(out, exec, location, it, "construct", DumpCaches, hasPrintedProfiling, callLinkInfos);
</span><span class="cx"> break;
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorebytecompilerBytecodeGeneratorcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/bytecompiler/BytecodeGenerator.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -1994,14 +1994,31 @@
</span><span class="cx"> instructions().append(m_lexicalEnvironmentRegister ? m_lexicalEnvironmentRegister->index() : emitLoad(0, JSValue())->index());
</span><span class="cx"> }
</span><span class="cx">
</span><del>- // Constructors use op_ret_object_or_this to check the result is an
- // object, unless we can trivially determine the check is not
- // necessary (currently, if the return value is 'this').
- if (isConstructor() && (src->index() != m_thisRegister.index())) {
- emitOpcode(op_ret_object_or_this);
</del><ins>+ if (isConstructor() && src->index() != m_thisRegister.index()) {
+ RefPtr<Label> isObjectLabel = newLabel();
+ RefPtr<RegisterID> isObjectRegister = newTemporary();
+
+ emitOpcode(op_is_object);
+ instructions().append(isObjectRegister->index());
</ins><span class="cx"> instructions().append(src->index());
</span><del>- instructions().append(m_thisRegister.index());
- return src;
</del><ins>+
+ size_t begin = instructions().size();
+ emitOpcode(op_jtrue);
+ instructions().append(isObjectRegister->index());
+ instructions().append(isObjectLabel->bind(begin, instructions().size()));
+
+ emitOpcode(op_is_function);
+ instructions().append(isObjectRegister->index());
+ instructions().append(src->index());
+
+ begin = instructions().size();
+ emitOpcode(op_jtrue);
+ instructions().append(isObjectRegister->index());
+ instructions().append(isObjectLabel->bind(begin, instructions().size()));
+
+ emitUnaryNoDstOp(op_ret, &m_thisRegister);
+
+ emitLabel(isObjectLabel.get());
</ins><span class="cx"> }
</span><span class="cx"> return emitUnaryNoDstOp(op_ret, src);
</span><span class="cx"> }
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JIT.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JIT.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/jit/JIT.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -280,7 +280,6 @@
</span><span class="cx"> DEFINE_OP(op_init_global_const)
</span><span class="cx">
</span><span class="cx"> DEFINE_OP(op_ret)
</span><del>- DEFINE_OP(op_ret_object_or_this)
</del><span class="cx"> DEFINE_OP(op_rshift)
</span><span class="cx"> DEFINE_OP(op_unsigned)
</span><span class="cx"> DEFINE_OP(op_urshift)
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITh"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JIT.h (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JIT.h 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/jit/JIT.h 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -535,7 +535,6 @@
</span><span class="cx"> void emit_op_put_getter_setter(Instruction*);
</span><span class="cx"> void emit_op_init_global_const(Instruction*);
</span><span class="cx"> void emit_op_ret(Instruction*);
</span><del>- void emit_op_ret_object_or_this(Instruction*);
</del><span class="cx"> void emit_op_rshift(Instruction*);
</span><span class="cx"> void emit_op_strcat(Instruction*);
</span><span class="cx"> void emit_op_stricteq(Instruction*);
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITCall32_64cpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JITCall32_64.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JITCall32_64.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/jit/JITCall32_64.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -64,28 +64,6 @@
</span><span class="cx"> ret();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void JIT::emit_op_ret_object_or_this(Instruction* currentInstruction)
-{
- unsigned result = currentInstruction[1].u.operand;
- unsigned thisReg = currentInstruction[2].u.operand;
-
- emitLoad(result, regT1, regT0);
- Jump notJSCell = branch32(NotEqual, regT1, TrustedImm32(JSValue::CellTag));
- Jump notObject = emitJumpIfCellNotObject(regT0);
-
- checkStackPointerAlignment();
- emitFunctionEpilogue();
- ret();
-
- notJSCell.link(this);
- notObject.link(this);
- emitLoad(thisReg, regT1, regT0);
-
- checkStackPointerAlignment();
- emitFunctionEpilogue();
- ret();
-}
-
</del><span class="cx"> void JIT::emitSlow_op_call(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
</span><span class="cx"> {
</span><span class="cx"> compileOpCallSlowCase(op_call, currentInstruction, iter, m_callLinkInfoIndex++);
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorejitJITOpcodescpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/jit/JITOpcodes.cpp (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/jit/JITOpcodes.cpp 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/jit/JITOpcodes.cpp 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -251,31 +251,6 @@
</span><span class="cx"> ret();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-void JIT::emit_op_ret_object_or_this(Instruction* currentInstruction)
-{
- ASSERT(callFrameRegister != regT1);
- ASSERT(regT1 != returnValueGPR);
- ASSERT(returnValueGPR != callFrameRegister);
-
- // Return the result in %eax.
- emitGetVirtualRegister(currentInstruction[1].u.operand, returnValueGPR);
- Jump notJSCell = emitJumpIfNotJSCell(returnValueGPR);
- Jump notObject = emitJumpIfCellNotObject(returnValueGPR);
-
- // Return.
- emitFunctionEpilogue();
- ret();
-
- // Return 'this' in %eax.
- notJSCell.link(this);
- notObject.link(this);
- emitGetVirtualRegister(currentInstruction[2].u.operand, returnValueGPR);
-
- // Return.
- emitFunctionEpilogue();
- ret();
-}
-
</del><span class="cx"> void JIT::emit_op_to_primitive(Instruction* currentInstruction)
</span><span class="cx"> {
</span><span class="cx"> int dst = currentInstruction[1].u.operand;
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorellintLowLevelInterpreter32_64asm"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/llint/LowLevelInterpreter32_64.asm 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -1970,21 +1970,6 @@
</span><span class="cx"> doReturn()
</span><span class="cx">
</span><span class="cx">
</span><del>-_llint_op_ret_object_or_this:
- traceExecution()
- checkSwitchToJITForEpilogue()
- loadi 4[PC], t2
- loadConstantOrVariable(t2, t1, t0)
- bineq t1, CellTag, .opRetObjectOrThisNotObject
- bbb JSCell::m_type[t0], ObjectType, .opRetObjectOrThisNotObject
- doReturn()
-
-.opRetObjectOrThisNotObject:
- loadi 8[PC], t2
- loadConstantOrVariable(t2, t1, t0)
- doReturn()
-
-
</del><span class="cx"> _llint_op_to_primitive:
</span><span class="cx"> traceExecution()
</span><span class="cx"> loadi 8[PC], t2
</span></span></pre></div>
<a id="trunkSourceJavaScriptCorellintLowLevelInterpreter64asm"></a>
<div class="modfile"><h4>Modified: trunk/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm (179371 => 179372)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm 2015-01-29 22:59:19 UTC (rev 179371)
+++ trunk/Source/JavaScriptCore/llint/LowLevelInterpreter64.asm 2015-01-29 23:17:18 UTC (rev 179372)
</span><span class="lines">@@ -1827,21 +1827,6 @@
</span><span class="cx"> doReturn()
</span><span class="cx">
</span><span class="cx">
</span><del>-_llint_op_ret_object_or_this:
- traceExecution()
- checkSwitchToJITForEpilogue()
- loadisFromInstruction(1, t2)
- loadConstantOrVariable(t2, t0)
- btqnz t0, tagMask, .opRetObjectOrThisNotObject
- bbb JSCell::m_type[t0], ObjectType, .opRetObjectOrThisNotObject
- doReturn()
-
-.opRetObjectOrThisNotObject:
- loadisFromInstruction(2, t2)
- loadConstantOrVariable(t2, t0)
- doReturn()
-
-
</del><span class="cx"> _llint_op_to_primitive:
</span><span class="cx"> traceExecution()
</span><span class="cx"> loadisFromInstruction(2, t2)
</span></span></pre>
</div>
</div>
</body>
</html>