/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef jit_IonGenericCallStub_h
#define jit_IonGenericCallStub_h
#include "jit/Registers.h"
namespace js::jit {
#ifndef JS_USE_LINK_REGISTER
static constexpr
Register IonGenericCallReturnAddrReg = CallTempReg0;
#endif
static constexpr
Register IonGenericCallCalleeReg = CallTempReg1;
static constexpr
Register IonGenericCallArgcReg = CallTempReg2;
#ifdef JS_CODEGEN_ARM
// We need a second scratch register that does not alias `lr` or
// any of the registers the ABI uses to pass arguments.
static_assert(CallTempReg0 == CallTempNonArgRegs[
0]);
static constexpr
Register IonGenericSecondScratchReg = CallTempReg0;
#endif
inline AllocatableGeneralRegisterSet IonGenericCallScratchRegs() {
AllocatableGeneralRegisterSet regs(GeneralRegisterSet::All());
MOZ_ASSERT(!regs.has(FramePointer));
regs.take(IonGenericCallCalleeReg);
regs.take(IonGenericCallArgcReg);
#ifndef JS_USE_LINK_REGISTER
regs.take(IonGenericCallReturnAddrReg);
#endif
#ifdef JS_CODEGEN_ARM
regs.take(IonGenericSecondScratchReg);
#endif
return regs;
}
}
// namespace js::jit
#endif /* jit_IonGenericCallStub_h */
