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-rw-r--r--JavaScriptCore/jit/JITCall.cpp475
1 files changed, 37 insertions, 438 deletions
diff --git a/JavaScriptCore/jit/JITCall.cpp b/JavaScriptCore/jit/JITCall.cpp
index 9979c8e..c0de9d1 100644
--- a/JavaScriptCore/jit/JITCall.cpp
+++ b/JavaScriptCore/jit/JITCall.cpp
@@ -24,9 +24,10 @@
*/
#include "config.h"
-#include "JIT.h"
#if ENABLE(JIT)
+#if !USE(JSVALUE32_64)
+#include "JIT.h"
#include "CodeBlock.h"
#include "JITInlineMethods.h"
@@ -45,406 +46,20 @@ using namespace std;
namespace JSC {
-#if USE(JSVALUE32_64)
-
-void JIT::compileOpCallInitializeCallFrame()
-{
- // regT0 holds callee, regT1 holds argCount
- store32(regT1, Address(callFrameRegister, RegisterFile::ArgumentCount * static_cast<int>(sizeof(Register))));
-
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_data) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // scopeChain
-
- emitStore(static_cast<unsigned>(RegisterFile::OptionalCalleeArguments), JSValue());
- storePtr(regT0, Address(callFrameRegister, RegisterFile::Callee * static_cast<int>(sizeof(Register)))); // callee
- storePtr(regT1, Address(callFrameRegister, RegisterFile::ScopeChain * static_cast<int>(sizeof(Register)))); // scopeChain
-}
-
-void JIT::compileOpCallSetupArgs(Instruction* instruction)
-{
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
-
- emitPutJITStubArg(regT1, regT0, 0);
- emitPutJITStubArgConstant(registerOffset, 1);
- emitPutJITStubArgConstant(argCount, 2);
-}
-
-void JIT::compileOpConstructSetupArgs(Instruction* instruction)
-{
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
- int proto = instruction[5].u.operand;
- int thisRegister = instruction[6].u.operand;
-
- emitPutJITStubArg(regT1, regT0, 0);
- emitPutJITStubArgConstant(registerOffset, 1);
- emitPutJITStubArgConstant(argCount, 2);
- emitPutJITStubArgFromVirtualRegister(proto, 3, regT2, regT3);
- emitPutJITStubArgConstant(thisRegister, 4);
-}
-
-void JIT::compileOpCallVarargsSetupArgs(Instruction*)
-{
- emitPutJITStubArg(regT1, regT0, 0);
- emitPutJITStubArg(regT3, 1); // registerOffset
- emitPutJITStubArg(regT2, 2); // argCount
-}
-
-void JIT::compileOpCallVarargs(Instruction* instruction)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCountRegister = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
-
- emitLoad(callee, regT1, regT0);
- emitLoadPayload(argCountRegister, regT2); // argCount
- addPtr(Imm32(registerOffset), regT2, regT3); // registerOffset
-
- compileOpCallVarargsSetupArgs(instruction);
-
- emitJumpSlowCaseIfNotJSCell(callee, regT1);
- addSlowCase(branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr)));
-
- // Speculatively roll the callframe, assuming argCount will match the arity.
- mul32(Imm32(sizeof(Register)), regT3, regT3);
- addPtr(callFrameRegister, regT3);
- storePtr(callFrameRegister, Address(regT3, RegisterFile::CallerFrame * static_cast<int>(sizeof(Register))));
- move(regT3, callFrameRegister);
-
- move(regT2, regT1); // argCount
-
- emitNakedCall(m_globalData->jitStubs.ctiVirtualCall());
-
- emitStore(dst, regT1, regT0);
-
- sampleCodeBlock(m_codeBlock);
-}
-
-void JIT::compileOpCallVarargsSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
-
- linkSlowCaseIfNotJSCell(iter, callee);
- linkSlowCase(iter);
-
- JITStubCall stubCall(this, cti_op_call_NotJSFunction);
- stubCall.call(dst); // In the interpreter, the callee puts the return value in dst.
-
- map(m_bytecodeIndex + OPCODE_LENGTH(op_call_varargs), dst, regT1, regT0);
- sampleCodeBlock(m_codeBlock);
-}
-
-void JIT::emit_op_ret(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
-
- // We could JIT generate the deref, only calling out to C when the refcount hits zero.
- if (m_codeBlock->needsFullScopeChain())
- JITStubCall(this, cti_op_ret_scopeChain).call();
-
- emitLoad(dst, regT1, regT0);
- emitGetFromCallFrameHeaderPtr(RegisterFile::ReturnPC, regT2);
- emitGetFromCallFrameHeaderPtr(RegisterFile::CallerFrame, callFrameRegister);
-
- restoreReturnAddressBeforeReturn(regT2);
- ret();
-}
-
-void JIT::emit_op_construct_verify(Instruction* currentInstruction)
-{
- unsigned dst = currentInstruction[1].u.operand;
-
- emitLoad(dst, regT1, regT0);
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::CellTag)));
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSCell, m_structure)), regT2);
- addSlowCase(branch8(NotEqual, Address(regT2, OBJECT_OFFSETOF(Structure, m_typeInfo) + OBJECT_OFFSETOF(TypeInfo, m_type)), Imm32(ObjectType)));
-}
-
-void JIT::emitSlow_op_construct_verify(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- unsigned dst = currentInstruction[1].u.operand;
- unsigned src = currentInstruction[2].u.operand;
-
- linkSlowCase(iter);
- linkSlowCase(iter);
- emitLoad(src, regT1, regT0);
- emitStore(dst, regT1, regT0);
-}
-
-void JIT::emitSlow_op_call(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_call);
-}
-
-void JIT::emitSlow_op_call_eval(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_call_eval);
-}
-
-void JIT::emitSlow_op_call_varargs(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- compileOpCallVarargsSlowCase(currentInstruction, iter);
-}
-
-void JIT::emitSlow_op_construct(Instruction* currentInstruction, Vector<SlowCaseEntry>::iterator& iter)
-{
- compileOpCallSlowCase(currentInstruction, iter, m_callLinkInfoIndex++, op_construct);
-}
-
-void JIT::emit_op_call(Instruction* currentInstruction)
-{
- compileOpCall(op_call, currentInstruction, m_callLinkInfoIndex++);
-}
-
-void JIT::emit_op_call_eval(Instruction* currentInstruction)
-{
- compileOpCall(op_call_eval, currentInstruction, m_callLinkInfoIndex++);
-}
-
-void JIT::emit_op_load_varargs(Instruction* currentInstruction)
-{
- int argCountDst = currentInstruction[1].u.operand;
- int argsOffset = currentInstruction[2].u.operand;
-
- JITStubCall stubCall(this, cti_op_load_varargs);
- stubCall.addArgument(Imm32(argsOffset));
- stubCall.call();
- // Stores a naked int32 in the register file.
- store32(returnValueRegister, Address(callFrameRegister, argCountDst * sizeof(Register)));
-}
-
-void JIT::emit_op_call_varargs(Instruction* currentInstruction)
-{
- compileOpCallVarargs(currentInstruction);
-}
-
-void JIT::emit_op_construct(Instruction* currentInstruction)
-{
- compileOpCall(op_construct, currentInstruction, m_callLinkInfoIndex++);
-}
-
-#if !ENABLE(JIT_OPTIMIZE_CALL)
-
-/* ------------------------------ BEGIN: !ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */
-
-void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
-
- Jump wasEval;
- if (opcodeID == op_call_eval) {
- JITStubCall stubCall(this, cti_op_call_eval);
- stubCall.addArgument(callee);
- stubCall.addArgument(JIT::Imm32(registerOffset));
- stubCall.addArgument(JIT::Imm32(argCount));
- stubCall.call();
- wasEval = branch32(NotEqual, regT1, Imm32(JSValue::EmptyValueTag));
- }
-
- emitLoad(callee, regT1, regT0);
-
- if (opcodeID == op_call)
- compileOpCallSetupArgs(instruction);
- else if (opcodeID == op_construct)
- compileOpConstructSetupArgs(instruction);
-
- emitJumpSlowCaseIfNotJSCell(callee, regT1);
- addSlowCase(branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr)));
-
- // First, in the case of a construct, allocate the new object.
- if (opcodeID == op_construct) {
- JITStubCall(this, cti_op_construct_JSConstruct).call(registerOffset - RegisterFile::CallFrameHeaderSize - argCount);
- emitLoad(callee, regT1, regT0);
- }
-
- // Speculatively roll the callframe, assuming argCount will match the arity.
- storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
- addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
- move(Imm32(argCount), regT1);
-
- emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs.ctiVirtualConstruct() : m_globalData->jitStubs.ctiVirtualCall());
-
- if (opcodeID == op_call_eval)
- wasEval.link(this);
-
- emitStore(dst, regT1, regT0);
-
- sampleCodeBlock(m_codeBlock);
-}
-
-void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned, OpcodeID opcodeID)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
-
- linkSlowCaseIfNotJSCell(iter, callee);
- linkSlowCase(iter);
-
- JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
- stubCall.call(dst); // In the interpreter, the callee puts the return value in dst.
-
- sampleCodeBlock(m_codeBlock);
-}
-
-#else // !ENABLE(JIT_OPTIMIZE_CALL)
-
-/* ------------------------------ BEGIN: ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */
-
-void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned callLinkInfoIndex)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
-
- Jump wasEval;
- if (opcodeID == op_call_eval) {
- JITStubCall stubCall(this, cti_op_call_eval);
- stubCall.addArgument(callee);
- stubCall.addArgument(JIT::Imm32(registerOffset));
- stubCall.addArgument(JIT::Imm32(argCount));
- stubCall.call();
- wasEval = branch32(NotEqual, regT1, Imm32(JSValue::EmptyValueTag));
- }
-
- emitLoad(callee, regT1, regT0);
-
- DataLabelPtr addressOfLinkedFunctionCheck;
-
- BEGIN_UNINTERRUPTED_SEQUENCE(sequenceOpCall);
-
- Jump jumpToSlow = branchPtrWithPatch(NotEqual, regT0, addressOfLinkedFunctionCheck, ImmPtr(0));
-
- END_UNINTERRUPTED_SEQUENCE(sequenceOpCall);
-
- addSlowCase(jumpToSlow);
- ASSERT(differenceBetween(addressOfLinkedFunctionCheck, jumpToSlow) == patchOffsetOpCallCompareToJump);
- m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathBegin = addressOfLinkedFunctionCheck;
-
- addSlowCase(branch32(NotEqual, regT1, Imm32(JSValue::CellTag)));
-
- // The following is the fast case, only used whan a callee can be linked.
-
- // In the case of OpConstruct, call out to a cti_ function to create the new object.
- if (opcodeID == op_construct) {
- int proto = instruction[5].u.operand;
- int thisRegister = instruction[6].u.operand;
-
- JITStubCall stubCall(this, cti_op_construct_JSConstruct);
- stubCall.addArgument(regT1, regT0);
- stubCall.addArgument(Imm32(0)); // FIXME: Remove this unused JITStub argument.
- stubCall.addArgument(Imm32(0)); // FIXME: Remove this unused JITStub argument.
- stubCall.addArgument(proto);
- stubCall.call(thisRegister);
-
- emitLoad(callee, regT1, regT0);
- }
-
- // Fast version of stack frame initialization, directly relative to edi.
- // Note that this omits to set up RegisterFile::CodeBlock, which is set in the callee
- emitStore(registerOffset + RegisterFile::OptionalCalleeArguments, JSValue());
- emitStore(registerOffset + RegisterFile::Callee, regT1, regT0);
-
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_data) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain
- store32(Imm32(argCount), Address(callFrameRegister, (registerOffset + RegisterFile::ArgumentCount) * static_cast<int>(sizeof(Register))));
- storePtr(callFrameRegister, Address(callFrameRegister, (registerOffset + RegisterFile::CallerFrame) * static_cast<int>(sizeof(Register))));
- storePtr(regT1, Address(callFrameRegister, (registerOffset + RegisterFile::ScopeChain) * static_cast<int>(sizeof(Register))));
- addPtr(Imm32(registerOffset * sizeof(Register)), callFrameRegister);
-
- // Call to the callee
- m_callStructureStubCompilationInfo[callLinkInfoIndex].hotPathOther = emitNakedCall();
-
- if (opcodeID == op_call_eval)
- wasEval.link(this);
-
- // Put the return value in dst. In the interpreter, op_ret does this.
- emitStore(dst, regT1, regT0);
- map(m_bytecodeIndex + opcodeLengths[opcodeID], dst, regT1, regT0);
-
- sampleCodeBlock(m_codeBlock);
-}
-
-void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID)
-{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
-
- linkSlowCase(iter);
- linkSlowCase(iter);
-
- // The arguments have been set up on the hot path for op_call_eval
- if (opcodeID == op_call)
- compileOpCallSetupArgs(instruction);
- else if (opcodeID == op_construct)
- compileOpConstructSetupArgs(instruction);
-
- // Fast check for JS function.
- Jump callLinkFailNotObject = branch32(NotEqual, regT1, Imm32(JSValue::CellTag));
- Jump callLinkFailNotJSFunction = branchPtr(NotEqual, Address(regT0), ImmPtr(m_globalData->jsFunctionVPtr));
-
- // First, in the case of a construct, allocate the new object.
- if (opcodeID == op_construct) {
- JITStubCall(this, cti_op_construct_JSConstruct).call(registerOffset - RegisterFile::CallFrameHeaderSize - argCount);
- emitLoad(callee, regT1, regT0);
- }
-
- // Speculatively roll the callframe, assuming argCount will match the arity.
- storePtr(callFrameRegister, Address(callFrameRegister, (RegisterFile::CallerFrame + registerOffset) * static_cast<int>(sizeof(Register))));
- addPtr(Imm32(registerOffset * static_cast<int>(sizeof(Register))), callFrameRegister);
- move(Imm32(argCount), regT1);
-
- m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs.ctiVirtualConstructLink() : m_globalData->jitStubs.ctiVirtualCallLink());
-
- // Put the return value in dst.
- emitStore(dst, regT1, regT0);;
- sampleCodeBlock(m_codeBlock);
-
- // If not, we need an extra case in the if below!
- ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_call_eval));
-
- // Done! - return back to the hot path.
- if (opcodeID == op_construct)
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_construct));
- else
- emitJumpSlowToHot(jump(), OPCODE_LENGTH(op_call));
-
- // This handles host functions
- callLinkFailNotObject.link(this);
- callLinkFailNotJSFunction.link(this);
- JITStubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction).call();
-
- emitStore(dst, regT1, regT0);;
- sampleCodeBlock(m_codeBlock);
-}
-
-/* ------------------------------ END: !ENABLE / ENABLE(JIT_OPTIMIZE_CALL) ------------------------------ */
-
-#endif // !ENABLE(JIT_OPTIMIZE_CALL)
-
-#else // USE(JSVALUE32_64)
-
void JIT::compileOpCallInitializeCallFrame()
{
store32(regT1, Address(callFrameRegister, RegisterFile::ArgumentCount * static_cast<int>(sizeof(Register))));
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_data) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain
+ loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain
- storePtr(ImmPtr(JSValue::encode(JSValue())), Address(callFrameRegister, RegisterFile::OptionalCalleeArguments * static_cast<int>(sizeof(Register))));
storePtr(regT0, Address(callFrameRegister, RegisterFile::Callee * static_cast<int>(sizeof(Register))));
storePtr(regT1, Address(callFrameRegister, RegisterFile::ScopeChain * static_cast<int>(sizeof(Register))));
}
void JIT::compileOpCallSetupArgs(Instruction* instruction)
{
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
+ int argCount = instruction[2].u.operand;
+ int registerOffset = instruction[3].u.operand;
// ecx holds func
emitPutJITStubArg(regT0, 0);
@@ -454,7 +69,7 @@ void JIT::compileOpCallSetupArgs(Instruction* instruction)
void JIT::compileOpCallVarargsSetupArgs(Instruction* instruction)
{
- int registerOffset = instruction[4].u.operand;
+ int registerOffset = instruction[3].u.operand;
// ecx holds func
emitPutJITStubArg(regT0, 0);
@@ -465,10 +80,10 @@ void JIT::compileOpCallVarargsSetupArgs(Instruction* instruction)
void JIT::compileOpConstructSetupArgs(Instruction* instruction)
{
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
- int proto = instruction[5].u.operand;
- int thisRegister = instruction[6].u.operand;
+ int argCount = instruction[2].u.operand;
+ int registerOffset = instruction[3].u.operand;
+ int proto = instruction[4].u.operand;
+ int thisRegister = instruction[5].u.operand;
// ecx holds func
emitPutJITStubArg(regT0, 0);
@@ -478,11 +93,16 @@ void JIT::compileOpConstructSetupArgs(Instruction* instruction)
emitPutJITStubArgConstant(thisRegister, 4);
}
-void JIT::compileOpCallVarargs(Instruction* instruction)
+void JIT::emit_op_call_put_result(Instruction* instruction)
{
int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCountRegister = instruction[3].u.operand;
+ emitPutVirtualRegister(dst);
+}
+
+void JIT::compileOpCallVarargs(Instruction* instruction)
+{
+ int callee = instruction[1].u.operand;
+ int argCountRegister = instruction[2].u.operand;
emitGetVirtualRegister(argCountRegister, regT1);
emitGetVirtualRegister(callee, regT0);
@@ -501,20 +121,15 @@ void JIT::compileOpCallVarargs(Instruction* instruction)
addPtr(regT2, callFrameRegister);
emitNakedCall(m_globalData->jitStubs.ctiVirtualCall());
- // Put the return value in dst. In the interpreter, op_ret does this.
- emitPutVirtualRegister(dst);
-
sampleCodeBlock(m_codeBlock);
}
-void JIT::compileOpCallVarargsSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter)
+void JIT::compileOpCallVarargsSlowCase(Instruction*, Vector<SlowCaseEntry>::iterator& iter)
{
- int dst = instruction[1].u.operand;
-
linkSlowCase(iter);
linkSlowCase(iter);
JITStubCall stubCall(this, cti_op_call_NotJSFunction);
- stubCall.call(dst); // In the interpreter, the callee puts the return value in dst.
+ stubCall.call();
sampleCodeBlock(m_codeBlock);
}
@@ -525,10 +140,9 @@ void JIT::compileOpCallVarargsSlowCase(Instruction* instruction, Vector<SlowCase
void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned)
{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
+ int callee = instruction[1].u.operand;
+ int argCount = instruction[2].u.operand;
+ int registerOffset = instruction[3].u.operand;
// Handle eval
Jump wasEval;
@@ -568,20 +182,15 @@ void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned)
if (opcodeID == op_call_eval)
wasEval.link(this);
- // Put the return value in dst. In the interpreter, op_ret does this.
- emitPutVirtualRegister(dst);
-
sampleCodeBlock(m_codeBlock);
}
void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned, OpcodeID opcodeID)
{
- int dst = instruction[1].u.operand;
-
linkSlowCase(iter);
linkSlowCase(iter);
JITStubCall stubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction);
- stubCall.call(dst); // In the interpreter, the callee puts the return value in dst.
+ stubCall.call();
sampleCodeBlock(m_codeBlock);
}
@@ -592,10 +201,9 @@ void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>:
void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned callLinkInfoIndex)
{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
+ int callee = instruction[1].u.operand;
+ int argCount = instruction[2].u.operand;
+ int registerOffset = instruction[3].u.operand;
// Handle eval
Jump wasEval;
@@ -627,8 +235,8 @@ void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned ca
// In the case of OpConstruct, call out to a cti_ function to create the new object.
if (opcodeID == op_construct) {
- int proto = instruction[5].u.operand;
- int thisRegister = instruction[6].u.operand;
+ int proto = instruction[4].u.operand;
+ int thisRegister = instruction[5].u.operand;
emitPutJITStubArg(regT0, 0);
emitPutJITStubArgFromVirtualRegister(proto, 3, regT2);
@@ -639,11 +247,12 @@ void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned ca
// Fast version of stack frame initialization, directly relative to edi.
// Note that this omits to set up RegisterFile::CodeBlock, which is set in the callee
- storePtr(ImmPtr(JSValue::encode(JSValue())), Address(callFrameRegister, (registerOffset + RegisterFile::OptionalCalleeArguments) * static_cast<int>(sizeof(Register))));
- storePtr(regT0, Address(callFrameRegister, (registerOffset + RegisterFile::Callee) * static_cast<int>(sizeof(Register))));
- loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_data) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain
+
+ loadPtr(Address(regT0, OBJECT_OFFSETOF(JSFunction, m_scopeChain) + OBJECT_OFFSETOF(ScopeChain, m_node)), regT1); // newScopeChain
+
store32(Imm32(argCount), Address(callFrameRegister, (registerOffset + RegisterFile::ArgumentCount) * static_cast<int>(sizeof(Register))));
storePtr(callFrameRegister, Address(callFrameRegister, (registerOffset + RegisterFile::CallerFrame) * static_cast<int>(sizeof(Register))));
+ storePtr(regT0, Address(callFrameRegister, (registerOffset + RegisterFile::Callee) * static_cast<int>(sizeof(Register))));
storePtr(regT1, Address(callFrameRegister, (registerOffset + RegisterFile::ScopeChain) * static_cast<int>(sizeof(Register))));
addPtr(Imm32(registerOffset * sizeof(Register)), callFrameRegister);
@@ -653,18 +262,14 @@ void JIT::compileOpCall(OpcodeID opcodeID, Instruction* instruction, unsigned ca
if (opcodeID == op_call_eval)
wasEval.link(this);
- // Put the return value in dst. In the interpreter, op_ret does this.
- emitPutVirtualRegister(dst);
-
sampleCodeBlock(m_codeBlock);
}
void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>::iterator& iter, unsigned callLinkInfoIndex, OpcodeID opcodeID)
{
- int dst = instruction[1].u.operand;
- int callee = instruction[2].u.operand;
- int argCount = instruction[3].u.operand;
- int registerOffset = instruction[4].u.operand;
+ int callee = instruction[1].u.operand;
+ int argCount = instruction[2].u.operand;
+ int registerOffset = instruction[3].u.operand;
linkSlowCase(iter);
@@ -693,10 +298,6 @@ void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>:
m_callStructureStubCompilationInfo[callLinkInfoIndex].callReturnLocation = emitNakedCall(opcodeID == op_construct ? m_globalData->jitStubs.ctiVirtualConstructLink() : m_globalData->jitStubs.ctiVirtualCallLink());
- // Put the return value in dst.
- emitPutVirtualRegister(dst);
- sampleCodeBlock(m_codeBlock);
-
// If not, we need an extra case in the if below!
ASSERT(OPCODE_LENGTH(op_call) == OPCODE_LENGTH(op_call_eval));
@@ -711,7 +312,6 @@ void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>:
callLinkFailNotJSFunction.link(this);
JITStubCall(this, opcodeID == op_construct ? cti_op_construct_NotJSConstruct : cti_op_call_NotJSFunction).call();
- emitPutVirtualRegister(dst);
sampleCodeBlock(m_codeBlock);
}
@@ -719,8 +319,7 @@ void JIT::compileOpCallSlowCase(Instruction* instruction, Vector<SlowCaseEntry>:
#endif // !ENABLE(JIT_OPTIMIZE_CALL)
-#endif // USE(JSVALUE32_64)
-
} // namespace JSC
+#endif // !USE(JSVALUE32_64)
#endif // ENABLE(JIT)
generated by cgit v1.1 at 2025-09-13 02:15:18 +0000