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[JAEGER] Added JSOP_ENTERBLOCK, JSOP_LEAVEBLOCK, and support for |let|.

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This commit is contained in:
David Anderson
2010-06-09 01:03:58 -07:00
parent 134cd99e2e
commit 7865593507
8 changed files with 166 additions and 8 deletions
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30
js/src/methodjit/Compiler.cpp
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@@ -909,7 +909,7 @@ mjit::Compiler::generateMethod()
END_CASE(JSOP_LINENO)
BEGIN_CASE(JSOP_DEFFUN)
JS_ASSERT(frame.stackDepth() == 0);
prepareStubCall();
masm.move(Imm32(fullAtomIndex(PC)), Registers::ArgReg1);
stubCall(stubs::DefFun, Uses(0), Defs(0));
END_CASE(JSOP_DEFFUN)
@@ -1020,6 +1020,34 @@ mjit::Compiler::generateMethod()
goto done;
END_CASE(JSOP_STOP)
BEGIN_CASE(JSOP_ENTERBLOCK)
{
// If this is an exception entry point, then jsl_InternalThrow has set
// VMFrame::fp to the correct fp for the entry point. We need to copy
// that value here to FpReg so that FpReg also has the correct sp.
// Otherwise, we would simply be using a stale FpReg value.
if (analysis[PC].exceptionEntry)
restoreFrameRegs();
/* For now, don't bother doing anything for this opcode. */
JSObject *obj = script->getObject(fullAtomIndex(PC));
frame.forgetEverything();
masm.move(ImmPtr(obj), Registers::ArgReg1);
uint32 n = js_GetEnterBlockStackDefs(cx, script, PC);
stubCall(stubs::EnterBlock, Uses(0), Defs(n));
frame.enterBlock(n);
}
END_CASE(JSOP_ENTERBLOCK)
BEGIN_CASE(JSOP_LEAVEBLOCK)
{
uint32 n = js_GetVariableStackUses(op, PC);
prepareStubCall();
stubCall(stubs::LeaveBlock, Uses(n), Defs(0));
frame.leaveBlock(n);
}
END_CASE(JSOP_LEAVEBLOCK)
BEGIN_CASE(JSOP_CALLLOCAL)
frame.pushLocal(GET_SLOTNO(PC));
frame.push(NullTag());