BaselineCompilerShared::BaselineCompilerShared(JSContext *cx, TempAllocator &alloc, HandleScript script) : cx(cx), script(cx, script), pc(script->code()), ionCompileable_(jit::IsIonEnabled(cx) && CanIonCompileScript(cx, script, false)), ionOSRCompileable_(jit::IsIonEnabled(cx) && CanIonCompileScript(cx, script, true)), debugMode_(cx->compartment()->debugMode()), alloc_(alloc), analysis_(alloc, script), frame(cx, script, masm), stubSpace_(), icEntries_(), pcMappingEntries_(), icLoadLabels_(), pushedBeforeCall_(0), inCall_(false), spsPushToggleOffset_() { }