Changeset 38330 in webkit for trunk/JavaScriptCore/bytecompiler/CodeGenerator.cpp

Timestamp:

Nov 12, 2008, 1:34:22 AM (17 years ago)

Author:

[email protected]

Message:

2008-11-12 Cameron Zwarich <​[email protected]>

Rubber-stamped by Mark Rowe.

Roll out r38322 due to test failures on the bots.

JavaScriptCore:

• VM/CTI.cpp: (JSC::CTI::compileOpCallSetupArgs): (JSC::CTI::compileOpCall): (JSC::CTI::privateCompileMainPass): (JSC::CTI::privateCompileSlowCases):
• VM/CTI.h:
• VM/CodeBlock.cpp: (JSC::CodeBlock::dump):
• VM/Machine.cpp: (JSC::Machine::callEval): (JSC::Machine::dumpCallFrame): (JSC::Machine::dumpRegisters): (JSC::Machine::execute): (JSC::Machine::privateExecute): (JSC::Machine::throwStackOverflowPreviousFrame): (JSC::Machine::cti_register_file_check): (JSC::Machine::cti_op_call_arityCheck): (JSC::Machine::cti_op_call_NotJSFunction): (JSC::Machine::cti_op_construct_JSConstruct): (JSC::Machine::cti_op_construct_NotJSConstruct): (JSC::Machine::cti_op_call_eval): (JSC::Machine::cti_vm_throw):
• VM/Machine.h:
• bytecompiler/CodeGenerator.cpp: (JSC::CodeGenerator::emitCall): (JSC::CodeGenerator::emitCallEval): (JSC::CodeGenerator::emitConstruct):
• bytecompiler/CodeGenerator.h:
• parser/Nodes.cpp: (JSC::EvalFunctionCallNode::emitCode): (JSC::FunctionCallValueNode::emitCode): (JSC::FunctionCallResolveNode::emitCode): (JSC::FunctionCallBracketNode::emitCode): (JSC::FunctionCallDotNode::emitCode):
• parser/Nodes.h: (JSC::ScopeNode::neededConstants):

LayoutTests:

• fast/js/global-recursion-on-full-stack-expected.txt:

File:

• trunk/JavaScriptCore/bytecompiler/CodeGenerator.cpp (modified) (3 diffs)

trunk/JavaScriptCore/bytecompiler/CodeGenerator.cpp

@@ -1220 +1220 @@
 }
 
-RegisterID* CodeGenerator::emitCall(RegisterID* dst, RegisterID* func, RegisterID* thisRegister, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
-{
-    return emitCall(op_call, dst, func, thisRegister, argumentsNode, divot, startOffset, endOffset);
-}
-
-RegisterID* CodeGenerator::emitCallEval(RegisterID* dst, RegisterID* func, RegisterID* thisRegister, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
-{
-    return emitCall(op_call_eval, dst, func, thisRegister, argumentsNode, divot, startOffset, endOffset);
-}
-
-RegisterID* CodeGenerator::emitCall(OpcodeID opcodeID, RegisterID* dst, RegisterID* func, RegisterID* thisRegister, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
+RegisterID* CodeGenerator::emitCall(RegisterID* dst, RegisterID* func, RegisterID* base, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
+{
+    return emitCall(op_call, dst, func, base, argumentsNode, divot, startOffset, endOffset);
+}
+
+RegisterID* CodeGenerator::emitCallEval(RegisterID* dst, RegisterID* func, RegisterID* base, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
+{
+    return emitCall(op_call_eval, dst, func, base, argumentsNode, divot, startOffset, endOffset);
+}
+
+RegisterID* CodeGenerator::emitCall(OpcodeID opcodeID, RegisterID* dst, RegisterID* func, RegisterID* base, ArgumentsNode* argumentsNode, unsigned divot, unsigned startOffset, unsigned endOffset)
 {
     ASSERT(opcodeID == op_call || opcodeID == op_call_eval);
     ASSERT(func->refCount());
+    ASSERT(!base || base->refCount());
     
     // Generate code for arguments.
     Vector<RefPtr<RegisterID>, 16> argv;
-    argv.append(thisRegister);
+    argv.append(newTemporary()); // reserve space for "this"
     for (ArgumentListNode* n = argumentsNode->m_listNode.get(); n; n = n->m_next.get()) {
         argv.append(newTemporary());
@@ -1255 +1256 @@
     emitExpressionInfo(divot, startOffset, endOffset);
     m_codeBlock->callLinkInfos.append(CallLinkInfo());
-
-    // Emit call.
     emitOpcode(opcodeID);
-    instructions().append(dst->index()); // dst
-    instructions().append(func->index()); // func
-    instructions().append(argv.size()); // argCount
+    instructions().append(dst->index());
+    instructions().append(func->index());
+    instructions().append(base ? base->index() : missingThisObjectMarker()); // We encode the "this" value in the instruction stream, to avoid an explicit instruction for copying or loading it.
+    instructions().append(argv[0]->index()); // argv
+    instructions().append(argv.size()); // argc
     instructions().append(argv[0]->index() + argv.size() + RegisterFile::CallFrameHeaderSize); // registerOffset
 
@@ -1319 +1320 @@
     emitExpressionInfo(divot, startOffset, endOffset);
     m_codeBlock->callLinkInfos.append(CallLinkInfo());
-
     emitOpcode(op_construct);
-    instructions().append(dst->index()); // dst
-    instructions().append(func->index()); // func
-    instructions().append(argv.size()); // argCount
+    instructions().append(dst->index());
+    instructions().append(func->index());
+    instructions().append(funcProto->index());
+    instructions().append(argv[0]->index()); // argv
+    instructions().append(argv.size()); // argc
     instructions().append(argv[0]->index() + argv.size() + RegisterFile::CallFrameHeaderSize); // registerOffset
-    instructions().append(funcProto->index()); // proto
-    instructions().append(argv[0]->index()); // thisRegister
 
     emitOpcode(op_construct_verify);