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-rw-r--r--js/src/jit/BaselineIC.cpp56
1 files changed, 42 insertions, 14 deletions
diff --git a/js/src/jit/BaselineIC.cpp b/js/src/jit/BaselineIC.cpp
index 2f20ffa4f..a001357f8 100644
--- a/js/src/jit/BaselineIC.cpp
+++ b/js/src/jit/BaselineIC.cpp
@@ -10,6 +10,8 @@
#include "mozilla/SizePrintfMacros.h"
#include "mozilla/TemplateLib.h"
+#include "jsfriendapi.h"
+#include "jsfun.h"
#include "jslibmath.h"
#include "jstypes.h"
@@ -321,7 +323,14 @@ DoTypeUpdateFallback(JSContext* cx, BaselineFrame* frame, ICUpdatedStub* stub, H
MOZ_CRASH("Invalid stub");
}
- return stub->addUpdateStubForValue(cx, script /* = outerScript */, obj, id, value);
+ if (!stub->addUpdateStubForValue(cx, script /* = outerScript */, obj, id, value)) {
+ // The calling JIT code assumes this function is infallible (for
+ // instance we may reallocate dynamic slots before calling this),
+ // so ignore OOMs if we failed to attach a stub.
+ cx->recoverFromOutOfMemory();
+ }
+
+ return true;
}
typedef bool (*DoTypeUpdateFallbackFn)(JSContext*, BaselineFrame*, ICUpdatedStub*, HandleValue,
@@ -2253,14 +2262,20 @@ DenseOrUnboxedArraySetElemStubExists(JSContext* cx, ICStub::Kind kind,
for (ICStubConstIterator iter = stub->beginChainConst(); !iter.atEnd(); iter++) {
if (kind == ICStub::SetElem_DenseOrUnboxedArray && iter->isSetElem_DenseOrUnboxedArray()) {
ICSetElem_DenseOrUnboxedArray* nstub = iter->toSetElem_DenseOrUnboxedArray();
- if (obj->maybeShape() == nstub->shape() && obj->getGroup(cx) == nstub->group())
+ if (obj->maybeShape() == nstub->shape() &&
+ JSObject::getGroup(cx, obj) == nstub->group())
+ {
return true;
+ }
}
if (kind == ICStub::SetElem_DenseOrUnboxedArrayAdd && iter->isSetElem_DenseOrUnboxedArrayAdd()) {
ICSetElem_DenseOrUnboxedArrayAdd* nstub = iter->toSetElem_DenseOrUnboxedArrayAdd();
- if (obj->getGroup(cx) == nstub->group() && SetElemAddHasSameShapes(nstub, obj))
+ if (JSObject::getGroup(cx, obj) == nstub->group() &&
+ SetElemAddHasSameShapes(nstub, obj))
+ {
return true;
+ }
}
}
return false;
@@ -2446,7 +2461,7 @@ DoSetElemFallback(JSContext* cx, BaselineFrame* frame, ICSetElem_Fallback* stub_
&addingCase, &protoDepth))
{
RootedShape shape(cx, obj->maybeShape());
- RootedObjectGroup group(cx, obj->getGroup(cx));
+ RootedObjectGroup group(cx, JSObject::getGroup(cx, obj));
if (!group)
return false;
@@ -4277,7 +4292,7 @@ DoSetPropFallback(JSContext* cx, BaselineFrame* frame, ICSetProp_Fallback* stub_
if (!obj)
return false;
RootedShape oldShape(cx, obj->maybeShape());
- RootedObjectGroup oldGroup(cx, obj->getGroup(cx));
+ RootedObjectGroup oldGroup(cx, JSObject::getGroup(cx, obj));
if (!oldGroup)
return false;
RootedReceiverGuard oldGuard(cx, ReceiverGuard(obj));
@@ -5175,14 +5190,13 @@ GetTemplateObjectForNative(JSContext* cx, HandleFunction target, const CallArgs&
if (native == js::array_slice) {
if (args.thisv().isObject()) {
- JSObject* obj = &args.thisv().toObject();
+ RootedObject obj(cx, &args.thisv().toObject());
if (!obj->isSingleton()) {
if (obj->group()->maybePreliminaryObjects()) {
*skipAttach = true;
return true;
}
- res.set(NewFullyAllocatedArrayTryReuseGroup(cx, &args.thisv().toObject(), 0,
- TenuredObject));
+ res.set(NewFullyAllocatedArrayTryReuseGroup(cx, obj, 0, TenuredObject));
return !!res;
}
}
@@ -5489,11 +5503,17 @@ TryAttachCallStub(JSContext* cx, ICCall_Fallback* stub, HandleScript script, jsb
MOZ_ASSERT_IF(templateObject, !templateObject->group()->maybePreliminaryObjects());
}
+ bool ignoresReturnValue = false;
+ if (op == JSOP_CALL_IGNORES_RV && fun->isNative()) {
+ const JSJitInfo* jitInfo = fun->jitInfo();
+ ignoresReturnValue = jitInfo && jitInfo->type() == JSJitInfo::IgnoresReturnValueNative;
+ }
+
JitSpew(JitSpew_BaselineIC, " Generating Call_Native stub (fun=%p, cons=%s, spread=%s)",
fun.get(), constructing ? "yes" : "no", isSpread ? "yes" : "no");
ICCall_Native::Compiler compiler(cx, stub->fallbackMonitorStub()->firstMonitorStub(),
- fun, templateObject, constructing, isSpread,
- script->pcToOffset(pc));
+ fun, templateObject, constructing, ignoresReturnValue,
+ isSpread, script->pcToOffset(pc));
ICStub* newStub = compiler.getStub(compiler.getStubSpace(script));
if (!newStub)
return false;
@@ -5596,12 +5616,14 @@ DoCallFallback(JSContext* cx, BaselineFrame* frame, ICCall_Fallback* stub_, uint
MOZ_ASSERT(argc == GET_ARGC(pc));
bool constructing = (op == JSOP_NEW);
+ bool ignoresReturnValue = (op == JSOP_CALL_IGNORES_RV);
// Ensure vp array is rooted - we may GC in here.
size_t numValues = argc + 2 + constructing;
AutoArrayRooter vpRoot(cx, numValues, vp);
- CallArgs callArgs = CallArgsFromSp(argc + constructing, vp + numValues, constructing);
+ CallArgs callArgs = CallArgsFromSp(argc + constructing, vp + numValues, constructing,
+ ignoresReturnValue);
RootedValue callee(cx, vp[0]);
// Handle funapply with JSOP_ARGUMENTS
@@ -5631,6 +5653,7 @@ DoCallFallback(JSContext* cx, BaselineFrame* frame, ICCall_Fallback* stub_, uint
return false;
} else {
MOZ_ASSERT(op == JSOP_CALL ||
+ op == JSOP_CALL_IGNORES_RV ||
op == JSOP_CALLITER ||
op == JSOP_FUNCALL ||
op == JSOP_FUNAPPLY ||
@@ -6681,7 +6704,12 @@ ICCall_Native::Compiler::generateStubCode(MacroAssembler& masm)
// stub and use that instead of the original one.
masm.callWithABI(Address(ICStubReg, ICCall_Native::offsetOfNative()));
#else
- masm.callWithABI(Address(callee, JSFunction::offsetOfNativeOrScript()));
+ if (ignoresReturnValue_) {
+ masm.loadPtr(Address(callee, JSFunction::offsetOfJitInfo()), callee);
+ masm.callWithABI(Address(callee, JSJitInfo::offsetOfIgnoresReturnValueNative()));
+ } else {
+ masm.callWithABI(Address(callee, JSFunction::offsetOfNativeOrScript()));
+ }
#endif
// Test for failure.
@@ -7961,7 +7989,7 @@ ICUpdatedStub*
ICSetElemDenseOrUnboxedArrayAddCompiler::getStubSpecific(ICStubSpace* space,
Handle<ShapeVector> shapes)
{
- RootedObjectGroup group(cx, obj_->getGroup(cx));
+ RootedObjectGroup group(cx, JSObject::getGroup(cx, obj_));
if (!group)
return nullptr;
Rooted<JitCode*> stubCode(cx, getStubCode());
@@ -8098,7 +8126,7 @@ ICSetProp_Native::ICSetProp_Native(JitCode* stubCode, ObjectGroup* group, Shape*
ICSetProp_Native*
ICSetProp_Native::Compiler::getStub(ICStubSpace* space)
{
- RootedObjectGroup group(cx, obj_->getGroup(cx));
+ RootedObjectGroup group(cx, JSObject::getGroup(cx, obj_));
if (!group)
return nullptr;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-23 11:03:20 +0000