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[JAEGER] PIC for not-escaped call objects (bug 576733).

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This commit is contained in:
David Anderson
2010-07-04 13:18:55 -07:00
parent 315d0a04ad
commit d92f2be57e
5 changed files with 355 additions and 48 deletions
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46
js/src/methodjit/Compiler.cpp
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@@ -307,12 +307,12 @@ mjit::Compiler::finishThisUp()
script->pics[i].atom = pics[i].atom;
script->pics[i].shapeGuard = masm.distanceOf(pics[i].shapeGuard) -
masm.distanceOf(pics[i].hotPathBegin);
script->pics[i].shapeRegHasBaseShape = true;
if (pics[i].kind == ic::PICInfo::SET) {
script->pics[i].u.vr = pics[i].vr;
} else {
} else if (pics[i].kind != ic::PICInfo::NAME) {
script->pics[i].u.get.typeReg = pics[i].typeReg;
script->pics[i].u.get.shapeRegHasBaseShape = true;
if (pics[i].hasTypeCheck) {
int32 distance = stubcc.masm.distanceOf(pics[i].typeCheck) -
stubcc.masm.distanceOf(pics[i].slowPathStart);
@@ -786,9 +786,7 @@ mjit::Compiler::generateMethod()
END_CASE(JSOP_CALL)
BEGIN_CASE(JSOP_NAME)
prepareStubCall();
stubCall(stubs::Name, Uses(0), Defs(1));
frame.pushSynced();
jsop_name(script->getAtom(fullAtomIndex(PC)));
END_CASE(JSOP_NAME)
BEGIN_CASE(JSOP_DOUBLE)
@@ -2340,8 +2338,46 @@ mjit::Compiler::jsop_setprop(JSAtom *atom)
pics.append(pic);
}
void
mjit::Compiler::jsop_name(JSAtom *atom)
{
PICGenInfo pic(ic::PICInfo::NAME);
pic.shapeReg = frame.allocReg();
pic.objReg = frame.allocReg();
pic.typeReg = Registers::ReturnReg;
pic.atom = atom;
pic.hasTypeCheck = false;
pic.hotPathBegin = masm.label();
pic.shapeGuard = masm.label();
Jump j = masm.jump();
{
pic.slowPathStart = stubcc.masm.label();
stubcc.linkExit(j);
stubcc.leave();
stubcc.masm.move(Imm32(pics.length()), Registers::ArgReg1);
pic.callReturn = stubcc.call(ic::Name);
}
pic.storeBack = masm.label();
frame.pushRegs(pic.shapeReg, pic.objReg);
stubcc.rejoin(0);
pics.append(pic);
}
#else /* ENABLE_PIC */
void
mjit::Compiler::jsop_name(JSAtom *atom)
{
prepareStubCall();
stubCall(stubs::Name, Uses(0), Defs(1));
frame.pushSynced();
}
void
mjit::Compiler::jsop_getprop(JSAtom *atom, bool typecheck)
{